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git/ref-filter.c
Patrick Steinhardt e7da938570 global: introduce USE_THE_REPOSITORY_VARIABLE macro 
Use of the `the_repository` variable is deprecated nowadays, and we
slowly but steadily convert the codebase to not use it anymore. Instead,
callers should be passing down the repository to work on via parameters.

It is hard though to prove that a given code unit does not use this
variable anymore. The most trivial case, merely demonstrating that there
is no direct use of `the_repository`, is already a bit of a pain during
code reviews as the reviewer needs to manually verify claims made by the
patch author. The bigger problem though is that we have many interfaces
that implicitly rely on `the_repository`.

Introduce a new `USE_THE_REPOSITORY_VARIABLE` macro that allows code
units to opt into usage of `the_repository`. The intent of this macro is
to demonstrate that a certain code unit does not use this variable
anymore, and to keep it from new dependencies on it in future changes,
be it explicit or implicit

For now, the macro only guards `the_repository` itself as well as
`the_hash_algo`. There are many more known interfaces where we have an
implicit dependency on `the_repository`, but those are not guarded at
the current point in time. Over time though, we should start to add
guards as required (or even better, just remove them).

Define the macro as required in our code units. As expected, most of our
code still relies on the global variable. Nearly all of our builtins
rely on the variable as there is no way yet to pass `the_repository` to
their entry point. For now, declare the macro in "biultin.h" to keep the
required changes at least a little bit more contained.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-06-14 10:26:33 -07:00

3511 lines
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#define USE_THE_REPOSITORY_VARIABLE
#include "git-compat-util.h"
#include "environment.h"
#include "gettext.h"
#include "config.h"
#include "gpg-interface.h"
#include "hex.h"
#include "parse-options.h"
#include "run-command.h"
#include "refs.h"
#include "wildmatch.h"
#include "object-name.h"
#include "object-store-ll.h"
#include "oid-array.h"
#include "repository.h"
#include "commit.h"
#include "mailmap.h"
#include "ident.h"
#include "remote.h"
#include "color.h"
#include "tag.h"
#include "quote.h"
#include "ref-filter.h"
#include "revision.h"
#include "utf8.h"
#include "versioncmp.h"
#include "trailer.h"
#include "wt-status.h"
#include "commit-slab.h"
#include "commit-reach.h"
#include "worktree.h"
#include "hashmap.h"
static struct ref_msg {
const char *gone;
const char *ahead;
const char *behind;
const char *ahead_behind;
} msgs = {
/* Untranslated plumbing messages: */
"gone",
"ahead %d",
"behind %d",
"ahead %d, behind %d"
};
void setup_ref_filter_porcelain_msg(void)
{
msgs.gone = _("gone");
msgs.ahead = _("ahead %d");
msgs.behind = _("behind %d");
msgs.ahead_behind = _("ahead %d, behind %d");
}
typedef enum { FIELD_STR, FIELD_ULONG, FIELD_TIME } cmp_type;
typedef enum { COMPARE_EQUAL, COMPARE_UNEQUAL, COMPARE_NONE } cmp_status;
typedef enum { SOURCE_NONE = 0, SOURCE_OBJ, SOURCE_OTHER } info_source;
struct align {
align_type position;
unsigned int width;
};
struct if_then_else {
cmp_status cmp_status;
const char *str;
unsigned int then_atom_seen : 1,
else_atom_seen : 1,
condition_satisfied : 1;
};
struct refname_atom {
enum { R_NORMAL, R_SHORT, R_LSTRIP, R_RSTRIP } option;
int lstrip, rstrip;
};
static struct ref_trailer_buf {
struct string_list filter_list;
struct strbuf sepbuf;
struct strbuf kvsepbuf;
} ref_trailer_buf = {STRING_LIST_INIT_NODUP, STRBUF_INIT, STRBUF_INIT};
static struct expand_data {
struct object_id oid;
enum object_type type;
unsigned long size;
off_t disk_size;
struct object_id delta_base_oid;
void *content;
struct object_info info;
} oi, oi_deref;
struct ref_to_worktree_entry {
struct hashmap_entry ent;
struct worktree *wt; /* key is wt->head_ref */
};
static int ref_to_worktree_map_cmpfnc(const void *lookupdata UNUSED,
const struct hashmap_entry *eptr,
const struct hashmap_entry *kptr,
const void *keydata_aka_refname)
{
const struct ref_to_worktree_entry *e, *k;
e = container_of(eptr, const struct ref_to_worktree_entry, ent);
k = container_of(kptr, const struct ref_to_worktree_entry, ent);
return strcmp(e->wt->head_ref,
keydata_aka_refname ? keydata_aka_refname : k->wt->head_ref);
}
static struct ref_to_worktree_map {
struct hashmap map;
struct worktree **worktrees;
} ref_to_worktree_map;
/*
* The enum atom_type is used as the index of valid_atom array.
* In the atom parsing stage, it will be passed to used_atom.atom_type
* as the identifier of the atom type. We can check the type of used_atom
* entry by `if (used_atom[i].atom_type == ATOM_*)`.
*/
enum atom_type {
ATOM_REFNAME,
ATOM_OBJECTTYPE,
ATOM_OBJECTSIZE,
ATOM_OBJECTNAME,
ATOM_DELTABASE,
ATOM_TREE,
ATOM_PARENT,
ATOM_NUMPARENT,
ATOM_OBJECT,
ATOM_TYPE,
ATOM_TAG,
ATOM_AUTHOR,
ATOM_AUTHORNAME,
ATOM_AUTHOREMAIL,
ATOM_AUTHORDATE,
ATOM_COMMITTER,
ATOM_COMMITTERNAME,
ATOM_COMMITTEREMAIL,
ATOM_COMMITTERDATE,
ATOM_TAGGER,
ATOM_TAGGERNAME,
ATOM_TAGGEREMAIL,
ATOM_TAGGERDATE,
ATOM_CREATOR,
ATOM_CREATORDATE,
ATOM_DESCRIBE,
ATOM_SUBJECT,
ATOM_BODY,
ATOM_TRAILERS,
ATOM_CONTENTS,
ATOM_SIGNATURE,
ATOM_RAW,
ATOM_UPSTREAM,
ATOM_PUSH,
ATOM_SYMREF,
ATOM_FLAG,
ATOM_HEAD,
ATOM_COLOR,
ATOM_WORKTREEPATH,
ATOM_ALIGN,
ATOM_END,
ATOM_IF,
ATOM_THEN,
ATOM_ELSE,
ATOM_REST,
ATOM_AHEADBEHIND,
};
/*
* An atom is a valid field atom listed below, possibly prefixed with
* a "*" to denote deref_tag().
*
* We parse given format string and sort specifiers, and make a list
* of properties that we need to extract out of objects. ref_array_item
* structure will hold an array of values extracted that can be
* indexed with the "atom number", which is an index into this
* array.
*/
static struct used_atom {
enum atom_type atom_type;
const char *name;
cmp_type type;
info_source source;
union {
char color[COLOR_MAXLEN];
struct align align;
struct {
enum {
RR_REF, RR_TRACK, RR_TRACKSHORT, RR_REMOTE_NAME, RR_REMOTE_REF
} option;
struct refname_atom refname;
unsigned int nobracket : 1, push : 1, push_remote : 1;
} remote_ref;
struct {
enum { C_BARE, C_BODY, C_BODY_DEP, C_LENGTH, C_LINES,
C_SIG, C_SUB, C_SUB_SANITIZE, C_TRAILERS } option;
struct process_trailer_options trailer_opts;
unsigned int nlines;
} contents;
struct {
enum { RAW_BARE, RAW_LENGTH } option;
} raw_data;
struct {
cmp_status cmp_status;
const char *str;
} if_then_else;
struct {
enum { O_FULL, O_LENGTH, O_SHORT } option;
unsigned int length;
} oid;
struct {
enum { O_SIZE, O_SIZE_DISK } option;
} objectsize;
struct {
enum { N_RAW, N_MAILMAP } option;
} name_option;
struct {
enum {
EO_RAW = 0,
EO_TRIM = 1<<0,
EO_LOCALPART = 1<<1,
EO_MAILMAP = 1<<2,
} option;
} email_option;
struct {
enum { S_BARE, S_GRADE, S_SIGNER, S_KEY,
S_FINGERPRINT, S_PRI_KEY_FP, S_TRUST_LEVEL } option;
} signature;
const char **describe_args;
struct refname_atom refname;
char *head;
} u;
} *used_atom;
static int used_atom_cnt, need_tagged, need_symref;
/*
* Expand string, append it to strbuf *sb, then return error code ret.
* Allow to save few lines of code.
*/
__attribute__((format (printf, 3, 4)))
static int strbuf_addf_ret(struct strbuf *sb, int ret, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
strbuf_vaddf(sb, fmt, ap);
va_end(ap);
return ret;
}
static int err_no_arg(struct strbuf *sb, const char *name)
{
size_t namelen = strchrnul(name, ':') - name;
strbuf_addf(sb, _("%%(%.*s) does not take arguments"),
(int)namelen, name);
return -1;
}
static int err_bad_arg(struct strbuf *sb, const char *name, const char *arg)
{
size_t namelen = strchrnul(name, ':') - name;
strbuf_addf(sb, _("unrecognized %%(%.*s) argument: %s"),
(int)namelen, name, arg);
return -1;
}
/*
* Parse option of name "candidate" in the option string "to_parse" of
* the form
*
* "candidate1[=val1],candidate2[=val2],candidate3[=val3],..."
*
* The remaining part of "to_parse" is stored in "end" (if we are
* parsing the last candidate, then this is NULL) and the value of
* the candidate is stored in "valuestart" and its length in "valuelen",
* that is the portion after "=". Since it is possible for a "candidate"
* to not have a value, in such cases, "valuestart" is set to point to
* NULL and "valuelen" to 0.
*
* The function returns 1 on success. It returns 0 if we don't find
* "candidate" in "to_parse" or we find "candidate" but it is followed
* by more chars (for example, "candidatefoo"), that is, we don't find
* an exact match.
*
* This function only does the above for one "candidate" at a time. So
* it has to be called each time trying to parse a "candidate" in the
* option string "to_parse".
*/
static int match_atom_arg_value(const char *to_parse, const char *candidate,
const char **end, const char **valuestart,
size_t *valuelen)
{
const char *atom;
if (!skip_prefix(to_parse, candidate, &atom))
return 0; /* definitely not "candidate" */
if (*atom == '=') {
/* we just saw "candidate=" */
*valuestart = atom + 1;
atom = strchrnul(*valuestart, ',');
*valuelen = atom - *valuestart;
} else if (*atom != ',' && *atom != '\0') {
/* key begins with "candidate" but has more chars */
return 0;
} else {
/* just "candidate" without "=val" */
*valuestart = NULL;
*valuelen = 0;
}
/* atom points at either the ',' or NUL after this key[=val] */
if (*atom == ',')
atom++;
else if (*atom)
BUG("Why is *atom not NULL yet?");
*end = atom;
return 1;
}
/*
* Parse boolean option of name "candidate" in the option list "to_parse"
* of the form
*
* "candidate1[=bool1],candidate2[=bool2],candidate3[=bool3],..."
*
* The remaining part of "to_parse" is stored in "end" (if we are parsing
* the last candidate, then this is NULL) and the value (if given) is
* parsed and stored in "val", so "val" always points to either 0 or 1.
* If the value is not given, then "val" is set to point to 1.
*
* The boolean value is parsed using "git_parse_maybe_bool()", so the
* accepted values are
*
* to set true - "1", "yes", "true"
* to set false - "0", "no", "false"
*
* This function returns 1 on success. It returns 0 when we don't find
* an exact match for "candidate" or when the boolean value given is
* not valid.
*/
static int match_atom_bool_arg(const char *to_parse, const char *candidate,
const char **end, int *val)
{
const char *argval;
char *strval;
size_t arglen;
int v;
if (!match_atom_arg_value(to_parse, candidate, end, &argval, &arglen))
return 0;
if (!argval) {
*val = 1;
return 1;
}
strval = xstrndup(argval, arglen);
v = git_parse_maybe_bool(strval);
free(strval);
if (v == -1)
return 0;
*val = v;
return 1;
}
static int color_atom_parser(struct ref_format *format, struct used_atom *atom,
const char *color_value, struct strbuf *err)
{
if (!color_value)
return strbuf_addf_ret(err, -1, _("expected format: %%(color:<color>)"));
if (color_parse(color_value, atom->u.color) < 0)
return strbuf_addf_ret(err, -1, _("unrecognized color: %%(color:%s)"),
color_value);
/*
* We check this after we've parsed the color, which lets us complain
* about syntactically bogus color names even if they won't be used.
*/
if (!want_color(format->use_color))
color_parse("", atom->u.color);
return 0;
}
static int refname_atom_parser_internal(struct refname_atom *atom, const char *arg,
const char *name, struct strbuf *err)
{
if (!arg)
atom->option = R_NORMAL;
else if (!strcmp(arg, "short"))
atom->option = R_SHORT;
else if (skip_prefix(arg, "lstrip=", &arg) ||
skip_prefix(arg, "strip=", &arg)) {
atom->option = R_LSTRIP;
if (strtol_i(arg, 10, &atom->lstrip))
return strbuf_addf_ret(err, -1, _("Integer value expected refname:lstrip=%s"), arg);
} else if (skip_prefix(arg, "rstrip=", &arg)) {
atom->option = R_RSTRIP;
if (strtol_i(arg, 10, &atom->rstrip))
return strbuf_addf_ret(err, -1, _("Integer value expected refname:rstrip=%s"), arg);
} else
return err_bad_arg(err, name, arg);
return 0;
}
static int remote_ref_atom_parser(struct ref_format *format UNUSED,
struct used_atom *atom,
const char *arg, struct strbuf *err)
{
struct string_list params = STRING_LIST_INIT_DUP;
int i;
if (!strcmp(atom->name, "push") || starts_with(atom->name, "push:"))
atom->u.remote_ref.push = 1;
if (!arg) {
atom->u.remote_ref.option = RR_REF;
return refname_atom_parser_internal(&atom->u.remote_ref.refname,
arg, atom->name, err);
}
atom->u.remote_ref.nobracket = 0;
string_list_split(&params, arg, ',', -1);
for (i = 0; i < params.nr; i++) {
const char *s = params.items[i].string;
if (!strcmp(s, "track"))
atom->u.remote_ref.option = RR_TRACK;
else if (!strcmp(s, "trackshort"))
atom->u.remote_ref.option = RR_TRACKSHORT;
else if (!strcmp(s, "nobracket"))
atom->u.remote_ref.nobracket = 1;
else if (!strcmp(s, "remotename")) {
atom->u.remote_ref.option = RR_REMOTE_NAME;
atom->u.remote_ref.push_remote = 1;
} else if (!strcmp(s, "remoteref")) {
atom->u.remote_ref.option = RR_REMOTE_REF;
atom->u.remote_ref.push_remote = 1;
} else {
atom->u.remote_ref.option = RR_REF;
if (refname_atom_parser_internal(&atom->u.remote_ref.refname,
arg, atom->name, err)) {
string_list_clear(&params, 0);
return -1;
}
}
}
string_list_clear(&params, 0);
return 0;
}
static int objecttype_atom_parser(struct ref_format *format UNUSED,
struct used_atom *atom,
const char *arg, struct strbuf *err)
{
if (arg)
return err_no_arg(err, "objecttype");
if (*atom->name == '*')
oi_deref.info.typep = &oi_deref.type;
else
oi.info.typep = &oi.type;
return 0;
}
static int objectsize_atom_parser(struct ref_format *format UNUSED,
struct used_atom *atom,
const char *arg, struct strbuf *err)
{
if (!arg) {
atom->u.objectsize.option = O_SIZE;
if (*atom->name == '*')
oi_deref.info.sizep = &oi_deref.size;
else
oi.info.sizep = &oi.size;
} else if (!strcmp(arg, "disk")) {
atom->u.objectsize.option = O_SIZE_DISK;
if (*atom->name == '*')
oi_deref.info.disk_sizep = &oi_deref.disk_size;
else
oi.info.disk_sizep = &oi.disk_size;
} else
return err_bad_arg(err, "objectsize", arg);
return 0;
}
static int deltabase_atom_parser(struct ref_format *format UNUSED,
struct used_atom *atom,
const char *arg, struct strbuf *err)
{
if (arg)
return err_no_arg(err, "deltabase");
if (*atom->name == '*')
oi_deref.info.delta_base_oid = &oi_deref.delta_base_oid;
else
oi.info.delta_base_oid = &oi.delta_base_oid;
return 0;
}
static int body_atom_parser(struct ref_format *format UNUSED,
struct used_atom *atom,
const char *arg, struct strbuf *err)
{
if (arg)
return err_no_arg(err, "body");
atom->u.contents.option = C_BODY_DEP;
return 0;
}
static int subject_atom_parser(struct ref_format *format UNUSED,
struct used_atom *atom,
const char *arg, struct strbuf *err)
{
if (!arg)
atom->u.contents.option = C_SUB;
else if (!strcmp(arg, "sanitize"))
atom->u.contents.option = C_SUB_SANITIZE;
else
return err_bad_arg(err, "subject", arg);
return 0;
}
static int parse_signature_option(const char *arg)
{
if (!arg)
return S_BARE;
else if (!strcmp(arg, "signer"))
return S_SIGNER;
else if (!strcmp(arg, "grade"))
return S_GRADE;
else if (!strcmp(arg, "key"))
return S_KEY;
else if (!strcmp(arg, "fingerprint"))
return S_FINGERPRINT;
else if (!strcmp(arg, "primarykeyfingerprint"))
return S_PRI_KEY_FP;
else if (!strcmp(arg, "trustlevel"))
return S_TRUST_LEVEL;
return -1;
}
static int signature_atom_parser(struct ref_format *format UNUSED,
struct used_atom *atom,
const char *arg, struct strbuf *err)
{
int opt = parse_signature_option(arg);
if (opt < 0)
return err_bad_arg(err, "signature", arg);
atom->u.signature.option = opt;
return 0;
}
static int trailers_atom_parser(struct ref_format *format UNUSED,
struct used_atom *atom,
const char *arg, struct strbuf *err)
{
atom->u.contents.trailer_opts.no_divider = 1;
if (arg) {
const char *argbuf = xstrfmt("%s)", arg);
char *invalid_arg = NULL;
if (format_set_trailers_options(&atom->u.contents.trailer_opts,
&ref_trailer_buf.filter_list,
&ref_trailer_buf.sepbuf,
&ref_trailer_buf.kvsepbuf,
&argbuf, &invalid_arg)) {
if (!invalid_arg)
strbuf_addf(err, _("expected %%(trailers:key=<value>)"));
else
strbuf_addf(err, _("unknown %%(trailers) argument: %s"), invalid_arg);
free((char *)invalid_arg);
return -1;
}
}
atom->u.contents.option = C_TRAILERS;
return 0;
}
static int contents_atom_parser(struct ref_format *format, struct used_atom *atom,
const char *arg, struct strbuf *err)
{
if (!arg)
atom->u.contents.option = C_BARE;
else if (!strcmp(arg, "body"))
atom->u.contents.option = C_BODY;
else if (!strcmp(arg, "size")) {
atom->type = FIELD_ULONG;
atom->u.contents.option = C_LENGTH;
} else if (!strcmp(arg, "signature"))
atom->u.contents.option = C_SIG;
else if (!strcmp(arg, "subject"))
atom->u.contents.option = C_SUB;
else if (!strcmp(arg, "trailers")) {
if (trailers_atom_parser(format, atom, NULL, err))
return -1;
} else if (skip_prefix(arg, "trailers:", &arg)) {
if (trailers_atom_parser(format, atom, arg, err))
return -1;
} else if (skip_prefix(arg, "lines=", &arg)) {
atom->u.contents.option = C_LINES;
if (strtoul_ui(arg, 10, &atom->u.contents.nlines))
return strbuf_addf_ret(err, -1, _("positive value expected contents:lines=%s"), arg);
} else
return err_bad_arg(err, "contents", arg);
return 0;
}
static int describe_atom_option_parser(struct strvec *args, const char **arg,
struct strbuf *err)
{
const char *argval;
size_t arglen = 0;
int optval = 0;
if (match_atom_bool_arg(*arg, "tags", arg, &optval)) {
if (!optval)
strvec_push(args, "--no-tags");
else
strvec_push(args, "--tags");
return 1;
}
if (match_atom_arg_value(*arg, "abbrev", arg, &argval, &arglen)) {
char *endptr;
if (!arglen)
return strbuf_addf_ret(err, -1,
_("argument expected for %s"),
"describe:abbrev");
if (strtol(argval, &endptr, 10) < 0)
return strbuf_addf_ret(err, -1,
_("positive value expected %s=%s"),
"describe:abbrev", argval);
if (endptr - argval != arglen)
return strbuf_addf_ret(err, -1,
_("cannot fully parse %s=%s"),
"describe:abbrev", argval);
strvec_pushf(args, "--abbrev=%.*s", (int)arglen, argval);
return 1;
}
if (match_atom_arg_value(*arg, "match", arg, &argval, &arglen)) {
if (!arglen)
return strbuf_addf_ret(err, -1,
_("value expected %s="),
"describe:match");
strvec_pushf(args, "--match=%.*s", (int)arglen, argval);
return 1;
}
if (match_atom_arg_value(*arg, "exclude", arg, &argval, &arglen)) {
if (!arglen)
return strbuf_addf_ret(err, -1,
_("value expected %s="),
"describe:exclude");
strvec_pushf(args, "--exclude=%.*s", (int)arglen, argval);
return 1;
}
return 0;
}
static int describe_atom_parser(struct ref_format *format UNUSED,
struct used_atom *atom,
const char *arg, struct strbuf *err)
{
struct strvec args = STRVEC_INIT;
for (;;) {
int found = 0;
const char *bad_arg = arg;
if (!arg || !*arg)
break;
found = describe_atom_option_parser(&args, &arg, err);
if (found < 0)
return found;
if (!found)
return err_bad_arg(err, "describe", bad_arg);
}
atom->u.describe_args = strvec_detach(&args);
return 0;
}
static int raw_atom_parser(struct ref_format *format UNUSED,
struct used_atom *atom,
const char *arg, struct strbuf *err)
{
if (!arg)
atom->u.raw_data.option = RAW_BARE;
else if (!strcmp(arg, "size")) {
atom->type = FIELD_ULONG;
atom->u.raw_data.option = RAW_LENGTH;
} else
return err_bad_arg(err, "raw", arg);
return 0;
}
static int oid_atom_parser(struct ref_format *format UNUSED,
struct used_atom *atom,
const char *arg, struct strbuf *err)
{
if (!arg)
atom->u.oid.option = O_FULL;
else if (!strcmp(arg, "short"))
atom->u.oid.option = O_SHORT;
else if (skip_prefix(arg, "short=", &arg)) {
atom->u.oid.option = O_LENGTH;
if (strtoul_ui(arg, 10, &atom->u.oid.length) ||
atom->u.oid.length == 0)
return strbuf_addf_ret(err, -1, _("positive value expected '%s' in %%(%s)"), arg, atom->name);
if (atom->u.oid.length < MINIMUM_ABBREV)
atom->u.oid.length = MINIMUM_ABBREV;
} else
return err_bad_arg(err, atom->name, arg);
return 0;
}
static int person_name_atom_parser(struct ref_format *format UNUSED,
struct used_atom *atom,
const char *arg, struct strbuf *err)
{
if (!arg)
atom->u.name_option.option = N_RAW;
else if (!strcmp(arg, "mailmap"))
atom->u.name_option.option = N_MAILMAP;
else
return err_bad_arg(err, atom->name, arg);
return 0;
}
static int email_atom_option_parser(struct used_atom *atom,
const char **arg, struct strbuf *err)
{
if (!*arg)
return EO_RAW;
if (skip_prefix(*arg, "trim", arg))
return EO_TRIM;
if (skip_prefix(*arg, "localpart", arg))
return EO_LOCALPART;
if (skip_prefix(*arg, "mailmap", arg))
return EO_MAILMAP;
return -1;
}
static int person_email_atom_parser(struct ref_format *format UNUSED,
struct used_atom *atom,
const char *arg, struct strbuf *err)
{
for (;;) {
int opt = email_atom_option_parser(atom, &arg, err);
const char *bad_arg = arg;
if (opt < 0)
return err_bad_arg(err, atom->name, bad_arg);
atom->u.email_option.option |= opt;
if (!arg || !*arg)
break;
if (*arg == ',')
arg++;
else
return err_bad_arg(err, atom->name, bad_arg);
}
return 0;
}
static int refname_atom_parser(struct ref_format *format UNUSED,
struct used_atom *atom,
const char *arg, struct strbuf *err)
{
return refname_atom_parser_internal(&atom->u.refname, arg, atom->name, err);
}
static align_type parse_align_position(const char *s)
{
if (!strcmp(s, "right"))
return ALIGN_RIGHT;
else if (!strcmp(s, "middle"))
return ALIGN_MIDDLE;
else if (!strcmp(s, "left"))
return ALIGN_LEFT;
return -1;
}
static int align_atom_parser(struct ref_format *format UNUSED,
struct used_atom *atom,
const char *arg, struct strbuf *err)
{
struct align *align = &atom->u.align;
struct string_list params = STRING_LIST_INIT_DUP;
int i;
unsigned int width = ~0U;
if (!arg)
return strbuf_addf_ret(err, -1, _("expected format: %%(align:<width>,<position>)"));
align->position = ALIGN_LEFT;
string_list_split(&params, arg, ',', -1);
for (i = 0; i < params.nr; i++) {
const char *s = params.items[i].string;
int position;
if (skip_prefix(s, "position=", &s)) {
position = parse_align_position(s);
if (position < 0) {
strbuf_addf(err, _("unrecognized position:%s"), s);
string_list_clear(&params, 0);
return -1;
}
align->position = position;
} else if (skip_prefix(s, "width=", &s)) {
if (strtoul_ui(s, 10, &width)) {
strbuf_addf(err, _("unrecognized width:%s"), s);
string_list_clear(&params, 0);
return -1;
}
} else if (!strtoul_ui(s, 10, &width))
;
else if ((position = parse_align_position(s)) >= 0)
align->position = position;
else {
strbuf_addf(err, _("unrecognized %%(%s) argument: %s"), "align", s);
string_list_clear(&params, 0);
return -1;
}
}
if (width == ~0U) {
string_list_clear(&params, 0);
return strbuf_addf_ret(err, -1, _("positive width expected with the %%(align) atom"));
}
align->width = width;
string_list_clear(&params, 0);
return 0;
}
static int if_atom_parser(struct ref_format *format UNUSED,
struct used_atom *atom,
const char *arg, struct strbuf *err)
{
if (!arg) {
atom->u.if_then_else.cmp_status = COMPARE_NONE;
return 0;
} else if (skip_prefix(arg, "equals=", &atom->u.if_then_else.str)) {
atom->u.if_then_else.cmp_status = COMPARE_EQUAL;
} else if (skip_prefix(arg, "notequals=", &atom->u.if_then_else.str)) {
atom->u.if_then_else.cmp_status = COMPARE_UNEQUAL;
} else
return err_bad_arg(err, "if", arg);
return 0;
}
static int rest_atom_parser(struct ref_format *format UNUSED,
struct used_atom *atom UNUSED,
const char *arg, struct strbuf *err)
{
if (arg)
return err_no_arg(err, "rest");
return 0;
}
static int ahead_behind_atom_parser(struct ref_format *format,
struct used_atom *atom UNUSED,
const char *arg, struct strbuf *err)
{
struct string_list_item *item;
if (!arg)
return strbuf_addf_ret(err, -1, _("expected format: %%(ahead-behind:<committish>)"));
item = string_list_append(&format->bases, arg);
item->util = lookup_commit_reference_by_name(arg);
if (!item->util)
die("failed to find '%s'", arg);
return 0;
}
static int head_atom_parser(struct ref_format *format UNUSED,
struct used_atom *atom,
const char *arg, struct strbuf *err)
{
if (arg)
return err_no_arg(err, "HEAD");
atom->u.head = refs_resolve_refdup(get_main_ref_store(the_repository),
"HEAD", RESOLVE_REF_READING, NULL,
NULL);
return 0;
}
static struct {
const char *name;
info_source source;
cmp_type cmp_type;
int (*parser)(struct ref_format *format, struct used_atom *atom,
const char *arg, struct strbuf *err);
} valid_atom[] = {
[ATOM_REFNAME] = { "refname", SOURCE_NONE, FIELD_STR, refname_atom_parser },
[ATOM_OBJECTTYPE] = { "objecttype", SOURCE_OTHER, FIELD_STR, objecttype_atom_parser },
[ATOM_OBJECTSIZE] = { "objectsize", SOURCE_OTHER, FIELD_ULONG, objectsize_atom_parser },
[ATOM_OBJECTNAME] = { "objectname", SOURCE_OTHER, FIELD_STR, oid_atom_parser },
[ATOM_DELTABASE] = { "deltabase", SOURCE_OTHER, FIELD_STR, deltabase_atom_parser },
[ATOM_TREE] = { "tree", SOURCE_OBJ, FIELD_STR, oid_atom_parser },
[ATOM_PARENT] = { "parent", SOURCE_OBJ, FIELD_STR, oid_atom_parser },
[ATOM_NUMPARENT] = { "numparent", SOURCE_OBJ, FIELD_ULONG },
[ATOM_OBJECT] = { "object", SOURCE_OBJ },
[ATOM_TYPE] = { "type", SOURCE_OBJ },
[ATOM_TAG] = { "tag", SOURCE_OBJ },
[ATOM_AUTHOR] = { "author", SOURCE_OBJ },
[ATOM_AUTHORNAME] = { "authorname", SOURCE_OBJ, FIELD_STR, person_name_atom_parser },
[ATOM_AUTHOREMAIL] = { "authoremail", SOURCE_OBJ, FIELD_STR, person_email_atom_parser },
[ATOM_AUTHORDATE] = { "authordate", SOURCE_OBJ, FIELD_TIME },
[ATOM_COMMITTER] = { "committer", SOURCE_OBJ },
[ATOM_COMMITTERNAME] = { "committername", SOURCE_OBJ, FIELD_STR, person_name_atom_parser },
[ATOM_COMMITTEREMAIL] = { "committeremail", SOURCE_OBJ, FIELD_STR, person_email_atom_parser },
[ATOM_COMMITTERDATE] = { "committerdate", SOURCE_OBJ, FIELD_TIME },
[ATOM_TAGGER] = { "tagger", SOURCE_OBJ },
[ATOM_TAGGERNAME] = { "taggername", SOURCE_OBJ, FIELD_STR, person_name_atom_parser },
[ATOM_TAGGEREMAIL] = { "taggeremail", SOURCE_OBJ, FIELD_STR, person_email_atom_parser },
[ATOM_TAGGERDATE] = { "taggerdate", SOURCE_OBJ, FIELD_TIME },
[ATOM_CREATOR] = { "creator", SOURCE_OBJ },
[ATOM_CREATORDATE] = { "creatordate", SOURCE_OBJ, FIELD_TIME },
[ATOM_DESCRIBE] = { "describe", SOURCE_OBJ, FIELD_STR, describe_atom_parser },
[ATOM_SUBJECT] = { "subject", SOURCE_OBJ, FIELD_STR, subject_atom_parser },
[ATOM_BODY] = { "body", SOURCE_OBJ, FIELD_STR, body_atom_parser },
[ATOM_TRAILERS] = { "trailers", SOURCE_OBJ, FIELD_STR, trailers_atom_parser },
[ATOM_CONTENTS] = { "contents", SOURCE_OBJ, FIELD_STR, contents_atom_parser },
[ATOM_SIGNATURE] = { "signature", SOURCE_OBJ, FIELD_STR, signature_atom_parser },
[ATOM_RAW] = { "raw", SOURCE_OBJ, FIELD_STR, raw_atom_parser },
[ATOM_UPSTREAM] = { "upstream", SOURCE_NONE, FIELD_STR, remote_ref_atom_parser },
[ATOM_PUSH] = { "push", SOURCE_NONE, FIELD_STR, remote_ref_atom_parser },
[ATOM_SYMREF] = { "symref", SOURCE_NONE, FIELD_STR, refname_atom_parser },
[ATOM_FLAG] = { "flag", SOURCE_NONE },
[ATOM_HEAD] = { "HEAD", SOURCE_NONE, FIELD_STR, head_atom_parser },
[ATOM_COLOR] = { "color", SOURCE_NONE, FIELD_STR, color_atom_parser },
[ATOM_WORKTREEPATH] = { "worktreepath", SOURCE_NONE },
[ATOM_ALIGN] = { "align", SOURCE_NONE, FIELD_STR, align_atom_parser },
[ATOM_END] = { "end", SOURCE_NONE },
[ATOM_IF] = { "if", SOURCE_NONE, FIELD_STR, if_atom_parser },
[ATOM_THEN] = { "then", SOURCE_NONE },
[ATOM_ELSE] = { "else", SOURCE_NONE },
[ATOM_REST] = { "rest", SOURCE_NONE, FIELD_STR, rest_atom_parser },
[ATOM_AHEADBEHIND] = { "ahead-behind", SOURCE_OTHER, FIELD_STR, ahead_behind_atom_parser },
/*
* Please update $__git_ref_fieldlist in git-completion.bash
* when you add new atoms
*/
};
#define REF_FORMATTING_STATE_INIT { 0 }
struct ref_formatting_stack {
struct ref_formatting_stack *prev;
struct strbuf output;
void (*at_end)(struct ref_formatting_stack **stack);
void *at_end_data;
};
struct ref_formatting_state {
int quote_style;
struct ref_formatting_stack *stack;
};
struct atom_value {
const char *s;
ssize_t s_size;
int (*handler)(struct atom_value *atomv, struct ref_formatting_state *state,
struct strbuf *err);
uintmax_t value; /* used for sorting when not FIELD_STR */
struct used_atom *atom;
};
#define ATOM_SIZE_UNSPECIFIED (-1)
#define ATOM_VALUE_INIT { \
.s_size = ATOM_SIZE_UNSPECIFIED \
}
/*
* Used to parse format string and sort specifiers
*/
static int parse_ref_filter_atom(struct ref_format *format,
const char *atom, const char *ep,
struct strbuf *err)
{
const char *sp;
const char *arg;
int i, at, atom_len;
sp = atom;
if (*sp == '*' && sp < ep)
sp++; /* deref */
if (ep <= sp)
return strbuf_addf_ret(err, -1, _("malformed field name: %.*s"),
(int)(ep-atom), atom);
/*
* If the atom name has a colon, strip it and everything after
* it off - it specifies the format for this entry, and
* shouldn't be used for checking against the valid_atom
* table.
*/
arg = memchr(sp, ':', ep - sp);
atom_len = (arg ? arg : ep) - sp;
/* Do we have the atom already used elsewhere? */
for (i = 0; i < used_atom_cnt; i++) {
int len = strlen(used_atom[i].name);
if (len == ep - atom && !memcmp(used_atom[i].name, atom, len))
return i;
}
/* Is the atom a valid one? */
for (i = 0; i < ARRAY_SIZE(valid_atom); i++) {
int len = strlen(valid_atom[i].name);
if (len == atom_len && !memcmp(valid_atom[i].name, sp, len))
break;
}
if (ARRAY_SIZE(valid_atom) <= i)
return strbuf_addf_ret(err, -1, _("unknown field name: %.*s"),
(int)(ep-atom), atom);
if (valid_atom[i].source != SOURCE_NONE && !have_git_dir())
return strbuf_addf_ret(err, -1,
_("not a git repository, but the field '%.*s' requires access to object data"),
(int)(ep-atom), atom);
/* Add it in, including the deref prefix */
at = used_atom_cnt;
used_atom_cnt++;
REALLOC_ARRAY(used_atom, used_atom_cnt);
used_atom[at].atom_type = i;
used_atom[at].name = xmemdupz(atom, ep - atom);
used_atom[at].type = valid_atom[i].cmp_type;
used_atom[at].source = valid_atom[i].source;
if (used_atom[at].source == SOURCE_OBJ) {
if (*atom == '*')
oi_deref.info.contentp = &oi_deref.content;
else
oi.info.contentp = &oi.content;
}
if (arg) {
arg = used_atom[at].name + (arg - atom) + 1;
if (!*arg) {
/*
* Treat empty sub-arguments list as NULL (i.e.,
* "%(atom:)" is equivalent to "%(atom)").
*/
arg = NULL;
}
}
memset(&used_atom[at].u, 0, sizeof(used_atom[at].u));
if (valid_atom[i].parser && valid_atom[i].parser(format, &used_atom[at], arg, err))
return -1;
if (*atom == '*')
need_tagged = 1;
if (i == ATOM_SYMREF)
need_symref = 1;
return at;
}
static void quote_formatting(struct strbuf *s, const char *str, ssize_t len, int quote_style)
{
switch (quote_style) {
case QUOTE_NONE:
if (len < 0)
strbuf_addstr(s, str);
else
strbuf_add(s, str, len);
break;
case QUOTE_SHELL:
sq_quote_buf(s, str);
break;
case QUOTE_PERL:
if (len < 0)
perl_quote_buf(s, str);
else
perl_quote_buf_with_len(s, str, len);
break;
case QUOTE_PYTHON:
python_quote_buf(s, str);
break;
case QUOTE_TCL:
tcl_quote_buf(s, str);
break;
}
}
static int append_atom(struct atom_value *v, struct ref_formatting_state *state,
struct strbuf *err UNUSED)
{
/*
* Quote formatting is only done when the stack has a single
* element. Otherwise quote formatting is done on the
* element's entire output strbuf when the %(end) atom is
* encountered.
*/
if (!state->stack->prev)
quote_formatting(&state->stack->output, v->s, v->s_size, state->quote_style);
else if (v->s_size < 0)
strbuf_addstr(&state->stack->output, v->s);
else
strbuf_add(&state->stack->output, v->s, v->s_size);
return 0;
}
static void push_stack_element(struct ref_formatting_stack **stack)
{
struct ref_formatting_stack *s = xcalloc(1, sizeof(struct ref_formatting_stack));
strbuf_init(&s->output, 0);
s->prev = *stack;
*stack = s;
}
static void pop_stack_element(struct ref_formatting_stack **stack)
{
struct ref_formatting_stack *current = *stack;
struct ref_formatting_stack *prev = current->prev;
if (prev)
strbuf_addbuf(&prev->output, &current->output);
strbuf_release(&current->output);
free(current);
*stack = prev;
}
static void end_align_handler(struct ref_formatting_stack **stack)
{
struct ref_formatting_stack *cur = *stack;
struct align *align = (struct align *)cur->at_end_data;
struct strbuf s = STRBUF_INIT;
strbuf_utf8_align(&s, align->position, align->width, cur->output.buf);
strbuf_swap(&cur->output, &s);
strbuf_release(&s);
}
static int align_atom_handler(struct atom_value *atomv, struct ref_formatting_state *state,
struct strbuf *err UNUSED)
{
struct ref_formatting_stack *new_stack;
push_stack_element(&state->stack);
new_stack = state->stack;
new_stack->at_end = end_align_handler;
new_stack->at_end_data = &atomv->atom->u.align;
return 0;
}
static void if_then_else_handler(struct ref_formatting_stack **stack)
{
struct ref_formatting_stack *cur = *stack;
struct ref_formatting_stack *prev = cur->prev;
struct if_then_else *if_then_else = (struct if_then_else *)cur->at_end_data;
if (!if_then_else->then_atom_seen)
die(_("format: %%(%s) atom used without a %%(%s) atom"), "if", "then");
if (if_then_else->else_atom_seen) {
/*
* There is an %(else) atom: we need to drop one state from the
* stack, either the %(else) branch if the condition is satisfied, or
* the %(then) branch if it isn't.
*/
if (if_then_else->condition_satisfied) {
strbuf_reset(&cur->output);
pop_stack_element(&cur);
} else {
strbuf_swap(&cur->output, &prev->output);
strbuf_reset(&cur->output);
pop_stack_element(&cur);
}
} else if (!if_then_else->condition_satisfied) {
/*
* No %(else) atom: just drop the %(then) branch if the
* condition is not satisfied.
*/
strbuf_reset(&cur->output);
}
*stack = cur;
free(if_then_else);
}
static int if_atom_handler(struct atom_value *atomv, struct ref_formatting_state *state,
struct strbuf *err UNUSED)
{
struct ref_formatting_stack *new_stack;
struct if_then_else *if_then_else = xcalloc(1,
sizeof(struct if_then_else));
if_then_else->str = atomv->atom->u.if_then_else.str;
if_then_else->cmp_status = atomv->atom->u.if_then_else.cmp_status;
push_stack_element(&state->stack);
new_stack = state->stack;
new_stack->at_end = if_then_else_handler;
new_stack->at_end_data = if_then_else;
return 0;
}
static int is_empty(struct strbuf *buf)
{
const char *cur = buf->buf;
const char *end = buf->buf + buf->len;
while (cur != end && (isspace(*cur)))
cur++;
return cur == end;
}
static int then_atom_handler(struct atom_value *atomv UNUSED,
struct ref_formatting_state *state,
struct strbuf *err)
{
struct ref_formatting_stack *cur = state->stack;
struct if_then_else *if_then_else = NULL;
size_t str_len = 0;
if (cur->at_end == if_then_else_handler)
if_then_else = (struct if_then_else *)cur->at_end_data;
if (!if_then_else)
return strbuf_addf_ret(err, -1, _("format: %%(%s) atom used without a %%(%s) atom"), "then", "if");
if (if_then_else->then_atom_seen)
return strbuf_addf_ret(err, -1, _("format: %%(then) atom used more than once"));
if (if_then_else->else_atom_seen)
return strbuf_addf_ret(err, -1, _("format: %%(then) atom used after %%(else)"));
if_then_else->then_atom_seen = 1;
if (if_then_else->str)
str_len = strlen(if_then_else->str);
/*
* If the 'equals' or 'notequals' attribute is used then
* perform the required comparison. If not, only non-empty
* strings satisfy the 'if' condition.
*/
if (if_then_else->cmp_status == COMPARE_EQUAL) {
if (str_len == cur->output.len &&
!memcmp(if_then_else->str, cur->output.buf, cur->output.len))
if_then_else->condition_satisfied = 1;
} else if (if_then_else->cmp_status == COMPARE_UNEQUAL) {
if (str_len != cur->output.len ||
memcmp(if_then_else->str, cur->output.buf, cur->output.len))
if_then_else->condition_satisfied = 1;
} else if (cur->output.len && !is_empty(&cur->output))
if_then_else->condition_satisfied = 1;
strbuf_reset(&cur->output);
return 0;
}
static int else_atom_handler(struct atom_value *atomv UNUSED,
struct ref_formatting_state *state,
struct strbuf *err)
{
struct ref_formatting_stack *prev = state->stack;
struct if_then_else *if_then_else = NULL;
if (prev->at_end == if_then_else_handler)
if_then_else = (struct if_then_else *)prev->at_end_data;
if (!if_then_else)
return strbuf_addf_ret(err, -1, _("format: %%(%s) atom used without a %%(%s) atom"), "else", "if");
if (!if_then_else->then_atom_seen)
return strbuf_addf_ret(err, -1, _("format: %%(%s) atom used without a %%(%s) atom"), "else", "then");
if (if_then_else->else_atom_seen)
return strbuf_addf_ret(err, -1, _("format: %%(else) atom used more than once"));
if_then_else->else_atom_seen = 1;
push_stack_element(&state->stack);
state->stack->at_end_data = prev->at_end_data;
state->stack->at_end = prev->at_end;
return 0;
}
static int end_atom_handler(struct atom_value *atomv UNUSED,
struct ref_formatting_state *state,
struct strbuf *err)
{
struct ref_formatting_stack *current = state->stack;
struct strbuf s = STRBUF_INIT;
if (!current->at_end)
return strbuf_addf_ret(err, -1, _("format: %%(end) atom used without corresponding atom"));
current->at_end(&state->stack);
/* Stack may have been popped within at_end(), hence reset the current pointer */
current = state->stack;
/*
* Perform quote formatting when the stack element is that of
* a supporting atom. If nested then perform quote formatting
* only on the topmost supporting atom.
*/
if (!current->prev->prev) {
quote_formatting(&s, current->output.buf, current->output.len, state->quote_style);
strbuf_swap(&current->output, &s);
}
strbuf_release(&s);
pop_stack_element(&state->stack);
return 0;
}
/*
* In a format string, find the next occurrence of %(atom).
*/
static const char *find_next(const char *cp)
{
while (*cp) {
if (*cp == '%') {
/*
* %( is the start of an atom;
* %% is a quoted per-cent.
*/
if (cp[1] == '(')
return cp;
else if (cp[1] == '%')
cp++; /* skip over two % */
/* otherwise this is a singleton, literal % */
}
cp++;
}
return NULL;
}
static int reject_atom(enum atom_type atom_type)
{
return atom_type == ATOM_REST;
}
/*
* Make sure the format string is well formed, and parse out
* the used atoms.
*/
int verify_ref_format(struct ref_format *format)
{
const char *cp, *sp;
format->need_color_reset_at_eol = 0;
for (cp = format->format; *cp && (sp = find_next(cp)); ) {
struct strbuf err = STRBUF_INIT;
const char *color, *ep = strchr(sp, ')');
int at;
if (!ep)
return error(_("malformed format string %s"), sp);
/* sp points at "%(" and ep points at the closing ")" */
at = parse_ref_filter_atom(format, sp + 2, ep, &err);
if (at < 0)
die("%s", err.buf);
if (reject_atom(used_atom[at].atom_type))
die(_("this command reject atom %%(%.*s)"), (int)(ep - sp - 2), sp + 2);
if ((format->quote_style == QUOTE_PYTHON ||
format->quote_style == QUOTE_SHELL ||
format->quote_style == QUOTE_TCL) &&
used_atom[at].atom_type == ATOM_RAW &&
used_atom[at].u.raw_data.option == RAW_BARE)
die(_("--format=%.*s cannot be used with "
"--python, --shell, --tcl"), (int)(ep - sp - 2), sp + 2);
cp = ep + 1;
if (skip_prefix(used_atom[at].name, "color:", &color))
format->need_color_reset_at_eol = !!strcmp(color, "reset");
strbuf_release(&err);
}
if (format->need_color_reset_at_eol && !want_color(format->use_color))
format->need_color_reset_at_eol = 0;
return 0;
}
static const char *do_grab_oid(const char *field, const struct object_id *oid,
struct used_atom *atom)
{
switch (atom->u.oid.option) {
case O_FULL:
return oid_to_hex(oid);
case O_LENGTH:
return repo_find_unique_abbrev(the_repository, oid,
atom->u.oid.length);
case O_SHORT:
return repo_find_unique_abbrev(the_repository, oid,
DEFAULT_ABBREV);
default:
BUG("unknown %%(%s) option", field);
}
}
static int grab_oid(const char *name, const char *field, const struct object_id *oid,
struct atom_value *v, struct used_atom *atom)
{
if (starts_with(name, field)) {
v->s = xstrdup(do_grab_oid(field, oid, atom));
return 1;
}
return 0;
}
/* See grab_values */
static void grab_common_values(struct atom_value *val, int deref, struct expand_data *oi)
{
int i;
for (i = 0; i < used_atom_cnt; i++) {
const char *name = used_atom[i].name;
enum atom_type atom_type = used_atom[i].atom_type;
struct atom_value *v = &val[i];
if (!!deref != (*name == '*'))
continue;
if (deref)
name++;
if (atom_type == ATOM_OBJECTTYPE)
v->s = xstrdup(type_name(oi->type));
else if (atom_type == ATOM_OBJECTSIZE) {
if (used_atom[i].u.objectsize.option == O_SIZE_DISK) {
v->value = oi->disk_size;
v->s = xstrfmt("%"PRIuMAX, (uintmax_t)oi->disk_size);
} else if (used_atom[i].u.objectsize.option == O_SIZE) {
v->value = oi->size;
v->s = xstrfmt("%"PRIuMAX , (uintmax_t)oi->size);
}
} else if (atom_type == ATOM_DELTABASE)
v->s = xstrdup(oid_to_hex(&oi->delta_base_oid));
else if (atom_type == ATOM_OBJECTNAME && deref)
grab_oid(name, "objectname", &oi->oid, v, &used_atom[i]);
}
}
/* See grab_values */
static void grab_tag_values(struct atom_value *val, int deref, struct object *obj)
{
int i;
struct tag *tag = (struct tag *) obj;
for (i = 0; i < used_atom_cnt; i++) {
const char *name = used_atom[i].name;
enum atom_type atom_type = used_atom[i].atom_type;
struct atom_value *v = &val[i];
if (!!deref != (*name == '*'))
continue;
if (deref)
name++;
if (atom_type == ATOM_TAG)
v->s = xstrdup(tag->tag);
else if (atom_type == ATOM_TYPE && tag->tagged)
v->s = xstrdup(type_name(tag->tagged->type));
else if (atom_type == ATOM_OBJECT && tag->tagged)
v->s = xstrdup(oid_to_hex(&tag->tagged->oid));
}
}
/* See grab_values */
static void grab_commit_values(struct atom_value *val, int deref, struct object *obj)
{
int i;
struct commit *commit = (struct commit *) obj;
for (i = 0; i < used_atom_cnt; i++) {
const char *name = used_atom[i].name;
enum atom_type atom_type = used_atom[i].atom_type;
struct atom_value *v = &val[i];
if (!!deref != (*name == '*'))
continue;
if (deref)
name++;
if (atom_type == ATOM_TREE &&
grab_oid(name, "tree", get_commit_tree_oid(commit), v, &used_atom[i]))
continue;
if (atom_type == ATOM_NUMPARENT) {
v->value = commit_list_count(commit->parents);
v->s = xstrfmt("%lu", (unsigned long)v->value);
}
else if (atom_type == ATOM_PARENT) {
struct commit_list *parents;
struct strbuf s = STRBUF_INIT;
for (parents = commit->parents; parents; parents = parents->next) {
struct object_id *oid = &parents->item->object.oid;
if (parents != commit->parents)
strbuf_addch(&s, ' ');
strbuf_addstr(&s, do_grab_oid("parent", oid, &used_atom[i]));
}
v->s = strbuf_detach(&s, NULL);
}
}
}
static const char *find_wholine(const char *who, int wholen, const char *buf)
{
const char *eol;
while (*buf) {
if (!strncmp(buf, who, wholen) &&
buf[wholen] == ' ')
return buf + wholen + 1;
eol = strchr(buf, '\n');
if (!eol)
return "";
eol++;
if (*eol == '\n')
return ""; /* end of header */
buf = eol;
}
return "";
}
static const char *copy_line(const char *buf)
{
const char *eol = strchrnul(buf, '\n');
return xmemdupz(buf, eol - buf);
}
static const char *copy_name(const char *buf)
{
const char *cp;
for (cp = buf; *cp && *cp != '\n'; cp++) {
if (starts_with(cp, " <"))
return xmemdupz(buf, cp - buf);
}
return xstrdup("");
}
static const char *find_end_of_email(const char *email, int opt)
{
const char *eoemail;
if (opt & EO_LOCALPART) {
eoemail = strchr(email, '@');
if (eoemail)
return eoemail;
return strchr(email, '>');
}
if (opt & EO_TRIM)
return strchr(email, '>');
/*
* The option here is either the raw email option or the raw
* mailmap option (that is EO_RAW or EO_MAILMAP). In such cases,
* we directly grab the whole email including the closing
* angle brackets.
*
* If EO_MAILMAP was set with any other option (that is either
* EO_TRIM or EO_LOCALPART), we already grab the end of email
* above.
*/
eoemail = strchr(email, '>');
if (eoemail)
eoemail++;
return eoemail;
}
static const char *copy_email(const char *buf, struct used_atom *atom)
{
const char *email = strchr(buf, '<');
const char *eoemail;
int opt = atom->u.email_option.option;
if (!email)
return xstrdup("");
if (opt & (EO_LOCALPART | EO_TRIM))
email++;
eoemail = find_end_of_email(email, opt);
if (!eoemail)
return xstrdup("");
return xmemdupz(email, eoemail - email);
}
static char *copy_subject(const char *buf, unsigned long len)
{
struct strbuf sb = STRBUF_INIT;
int i;
for (i = 0; i < len; i++) {
if (buf[i] == '\r' && i + 1 < len && buf[i + 1] == '\n')
continue; /* ignore CR in CRLF */
if (buf[i] == '\n')
strbuf_addch(&sb, ' ');
else
strbuf_addch(&sb, buf[i]);
}
return strbuf_detach(&sb, NULL);
}
static void grab_date(const char *buf, struct atom_value *v, const char *atomname)
{
const char *eoemail = strstr(buf, "> ");
char *zone;
timestamp_t timestamp;
long tz;
struct date_mode date_mode = DATE_MODE_INIT;
const char *formatp;
/*
* We got here because atomname ends in "date" or "date<something>";
* it's not possible that <something> is not ":<format>" because
* parse_ref_filter_atom() wouldn't have allowed it, so we can assume that no
* ":" means no format is specified, and use the default.
*/
formatp = strchr(atomname, ':');
if (formatp) {
formatp++;
parse_date_format(formatp, &date_mode);
/*
* If this is a sort field and a format was specified, we'll
* want to compare formatted date by string value.
*/
v->atom->type = FIELD_STR;
}
if (!eoemail)
goto bad;
timestamp = parse_timestamp(eoemail + 2, &zone, 10);
if (timestamp == TIME_MAX)
goto bad;
tz = strtol(zone, NULL, 10);
if ((tz == LONG_MIN || tz == LONG_MAX) && errno == ERANGE)
goto bad;
v->s = xstrdup(show_date(timestamp, tz, date_mode));
v->value = timestamp;
date_mode_release(&date_mode);
return;
bad:
v->s = xstrdup("");
v->value = 0;
}
static struct string_list mailmap = STRING_LIST_INIT_NODUP;
/* See grab_values */
static void grab_person(const char *who, struct atom_value *val, int deref, void *buf)
{
int i;
int wholen = strlen(who);
const char *wholine = NULL;
const char *headers[] = { "author ", "committer ",
"tagger ", NULL };
for (i = 0; i < used_atom_cnt; i++) {
struct used_atom *atom = &used_atom[i];
const char *name = atom->name;
struct atom_value *v = &val[i];
struct strbuf mailmap_buf = STRBUF_INIT;
if (!!deref != (*name == '*'))
continue;
if (deref)
name++;
if (strncmp(who, name, wholen))
continue;
if (name[wholen] != 0 &&
!starts_with(name + wholen, "name") &&
!starts_with(name + wholen, "email") &&
!starts_with(name + wholen, "date"))
continue;
if ((starts_with(name + wholen, "name") &&
(atom->u.name_option.option == N_MAILMAP)) ||
(starts_with(name + wholen, "email") &&
(atom->u.email_option.option & EO_MAILMAP))) {
if (!mailmap.items)
read_mailmap(&mailmap);
strbuf_addstr(&mailmap_buf, buf);
apply_mailmap_to_header(&mailmap_buf, headers, &mailmap);
wholine = find_wholine(who, wholen, mailmap_buf.buf);
} else {
wholine = find_wholine(who, wholen, buf);
}
if (!wholine)
return; /* no point looking for it */
if (name[wholen] == 0)
v->s = copy_line(wholine);
else if (starts_with(name + wholen, "name"))
v->s = copy_name(wholine);
else if (starts_with(name + wholen, "email"))
v->s = copy_email(wholine, &used_atom[i]);
else if (starts_with(name + wholen, "date"))
grab_date(wholine, v, name);
strbuf_release(&mailmap_buf);
}
/*
* For a tag or a commit object, if "creator" or "creatordate" is
* requested, do something special.
*/
if (strcmp(who, "tagger") && strcmp(who, "committer"))
return; /* "author" for commit object is not wanted */
if (!wholine)
wholine = find_wholine(who, wholen, buf);
if (!wholine)
return;
for (i = 0; i < used_atom_cnt; i++) {
const char *name = used_atom[i].name;
enum atom_type atom_type = used_atom[i].atom_type;
struct atom_value *v = &val[i];
if (!!deref != (*name == '*'))
continue;
if (deref)
name++;
if (atom_type == ATOM_CREATORDATE)
grab_date(wholine, v, name);
else if (atom_type == ATOM_CREATOR)
v->s = copy_line(wholine);
}
}
static void grab_signature(struct atom_value *val, int deref, struct object *obj)
{
int i;
struct commit *commit = (struct commit *) obj;
struct signature_check sigc = { 0 };
int signature_checked = 0;
for (i = 0; i < used_atom_cnt; i++) {
struct used_atom *atom = &used_atom[i];
const char *name = atom->name;
struct atom_value *v = &val[i];
int opt;
if (!!deref != (*name == '*'))
continue;
if (deref)
name++;
if (!skip_prefix(name, "signature", &name) ||
(*name && *name != ':'))
continue;
if (!*name)
name = NULL;
else
name++;
opt = parse_signature_option(name);
if (opt < 0)
continue;
if (!signature_checked) {
check_commit_signature(commit, &sigc);
signature_checked = 1;
}
switch (opt) {
case S_BARE:
v->s = xstrdup(sigc.output ? sigc.output: "");
break;
case S_SIGNER:
v->s = xstrdup(sigc.signer ? sigc.signer : "");
break;
case S_GRADE:
switch (sigc.result) {
case 'G':
switch (sigc.trust_level) {
case TRUST_UNDEFINED:
case TRUST_NEVER:
v->s = xstrfmt("%c", (char)'U');
break;
default:
v->s = xstrfmt("%c", (char)'G');
break;
}
break;
case 'B':
case 'E':
case 'N':
case 'X':
case 'Y':
case 'R':
v->s = xstrfmt("%c", (char)sigc.result);
break;
}
break;
case S_KEY:
v->s = xstrdup(sigc.key ? sigc.key : "");
break;
case S_FINGERPRINT:
v->s = xstrdup(sigc.fingerprint ?
sigc.fingerprint : "");
break;
case S_PRI_KEY_FP:
v->s = xstrdup(sigc.primary_key_fingerprint ?
sigc.primary_key_fingerprint : "");
break;
case S_TRUST_LEVEL:
v->s = xstrdup(gpg_trust_level_to_str(sigc.trust_level));
break;
}
}
if (signature_checked)
signature_check_clear(&sigc);
}
static void find_subpos(const char *buf,
const char **sub, size_t *sublen,
const char **body, size_t *bodylen,
size_t *nonsiglen,
const char **sig, size_t *siglen)
{
struct strbuf payload = STRBUF_INIT;
struct strbuf signature = STRBUF_INIT;
const char *eol;
const char *end = buf + strlen(buf);
const char *sigstart;
/* parse signature first; we might not even have a subject line */
parse_signature(buf, end - buf, &payload, &signature);
strbuf_release(&payload);
/* skip past header until we hit empty line */
while (*buf && *buf != '\n') {
eol = strchrnul(buf, '\n');
if (*eol)
eol++;
buf = eol;
}
/* skip any empty lines */
while (*buf == '\n')
buf++;
*sig = strbuf_detach(&signature, siglen);
sigstart = buf + parse_signed_buffer(buf, strlen(buf));
/* subject is first non-empty line */
*sub = buf;
/* subject goes to first empty line before signature begins */
if ((eol = strstr(*sub, "\n\n")) ||
(eol = strstr(*sub, "\r\n\r\n"))) {
eol = eol < sigstart ? eol : sigstart;
} else {
/* treat whole message as subject */
eol = sigstart;
}
buf = eol;
*sublen = buf - *sub;
/* drop trailing newline, if present */
while (*sublen && ((*sub)[*sublen - 1] == '\n' ||
(*sub)[*sublen - 1] == '\r'))
*sublen -= 1;
/* skip any empty lines */
while (*buf == '\n' || *buf == '\r')
buf++;
*body = buf;
*bodylen = strlen(buf);
*nonsiglen = sigstart - buf;
}
/*
* If 'lines' is greater than 0, append that many lines from the given
* 'buf' of length 'size' to the given strbuf.
*/
static void append_lines(struct strbuf *out, const char *buf, unsigned long size, int lines)
{
int i;
const char *sp, *eol;
size_t len;
sp = buf;
for (i = 0; i < lines && sp < buf + size; i++) {
if (i)
strbuf_addstr(out, "\n ");
eol = memchr(sp, '\n', size - (sp - buf));
len = eol ? eol - sp : size - (sp - buf);
strbuf_add(out, sp, len);
if (!eol)
break;
sp = eol + 1;
}
}
static void grab_describe_values(struct atom_value *val, int deref,
struct object *obj)
{
struct commit *commit = (struct commit *)obj;
int i;
for (i = 0; i < used_atom_cnt; i++) {
struct used_atom *atom = &used_atom[i];
enum atom_type type = atom->atom_type;
const char *name = atom->name;
struct atom_value *v = &val[i];
struct child_process cmd = CHILD_PROCESS_INIT;
struct strbuf out = STRBUF_INIT;
struct strbuf err = STRBUF_INIT;
if (type != ATOM_DESCRIBE)
continue;
if (!!deref != (*name == '*'))
continue;
cmd.git_cmd = 1;
strvec_push(&cmd.args, "describe");
strvec_pushv(&cmd.args, atom->u.describe_args);
strvec_push(&cmd.args, oid_to_hex(&commit->object.oid));
if (pipe_command(&cmd, NULL, 0, &out, 0, &err, 0) < 0) {
error(_("failed to run 'describe'"));
v->s = xstrdup("");
continue;
}
strbuf_rtrim(&out);
v->s = strbuf_detach(&out, NULL);
strbuf_release(&err);
}
}
/* See grab_values */
static void grab_sub_body_contents(struct atom_value *val, int deref, struct expand_data *data)
{
int i;
const char *subpos = NULL, *bodypos = NULL, *sigpos = NULL;
size_t sublen = 0, bodylen = 0, nonsiglen = 0, siglen = 0;
void *buf = data->content;
for (i = 0; i < used_atom_cnt; i++) {
struct used_atom *atom = &used_atom[i];
const char *name = atom->name;
struct atom_value *v = &val[i];
enum atom_type atom_type = atom->atom_type;
if (!!deref != (*name == '*'))
continue;
if (deref)
name++;
if (atom_type == ATOM_RAW) {
unsigned long buf_size = data->size;
if (atom->u.raw_data.option == RAW_BARE) {
v->s = xmemdupz(buf, buf_size);
v->s_size = buf_size;
} else if (atom->u.raw_data.option == RAW_LENGTH) {
v->value = buf_size;
v->s = xstrfmt("%"PRIuMAX, v->value);
}
continue;
}
if ((data->type != OBJ_TAG &&
data->type != OBJ_COMMIT) ||
(strcmp(name, "body") &&
!starts_with(name, "subject") &&
!starts_with(name, "trailers") &&
!starts_with(name, "contents")))
continue;
if (!subpos)
find_subpos(buf,
&subpos, &sublen,
&bodypos, &bodylen, &nonsiglen,
&sigpos, &siglen);
if (atom->u.contents.option == C_SUB)
v->s = copy_subject(subpos, sublen);
else if (atom->u.contents.option == C_SUB_SANITIZE) {
struct strbuf sb = STRBUF_INIT;
format_sanitized_subject(&sb, subpos, sublen);
v->s = strbuf_detach(&sb, NULL);
} else if (atom->u.contents.option == C_BODY_DEP)
v->s = xmemdupz(bodypos, bodylen);
else if (atom->u.contents.option == C_LENGTH) {
v->value = strlen(subpos);
v->s = xstrfmt("%"PRIuMAX, v->value);
} else if (atom->u.contents.option == C_BODY)
v->s = xmemdupz(bodypos, nonsiglen);
else if (atom->u.contents.option == C_SIG)
v->s = xmemdupz(sigpos, siglen);
else if (atom->u.contents.option == C_LINES) {
struct strbuf s = STRBUF_INIT;
const char *contents_end = bodypos + nonsiglen;
/* Size is the length of the message after removing the signature */
append_lines(&s, subpos, contents_end - subpos, atom->u.contents.nlines);
v->s = strbuf_detach(&s, NULL);
} else if (atom->u.contents.option == C_TRAILERS) {
struct strbuf s = STRBUF_INIT;
/* Format the trailer info according to the trailer_opts given */
format_trailers_from_commit(&atom->u.contents.trailer_opts, subpos, &s);
v->s = strbuf_detach(&s, NULL);
} else if (atom->u.contents.option == C_BARE)
v->s = xstrdup(subpos);
}
free((void *)sigpos);
}
/*
* We want to have empty print-string for field requests
* that do not apply (e.g. "authordate" for a tag object)
*/
static void fill_missing_values(struct atom_value *val)
{
int i;
for (i = 0; i < used_atom_cnt; i++) {
struct atom_value *v = &val[i];
if (!v->s)
v->s = xstrdup("");
}
}
/*
* val is a list of atom_value to hold returned values. Extract
* the values for atoms in used_atom array out of (obj, buf, sz).
* when deref is false, (obj, buf, sz) is the object that is
* pointed at by the ref itself; otherwise it is the object the
* ref (which is a tag) refers to.
*/
static void grab_values(struct atom_value *val, int deref, struct object *obj, struct expand_data *data)
{
void *buf = data->content;
switch (obj->type) {
case OBJ_TAG:
grab_tag_values(val, deref, obj);
grab_sub_body_contents(val, deref, data);
grab_person("tagger", val, deref, buf);
grab_describe_values(val, deref, obj);
break;
case OBJ_COMMIT:
grab_commit_values(val, deref, obj);
grab_sub_body_contents(val, deref, data);
grab_person("author", val, deref, buf);
grab_person("committer", val, deref, buf);
grab_signature(val, deref, obj);
grab_describe_values(val, deref, obj);
break;
case OBJ_TREE:
/* grab_tree_values(val, deref, obj, buf, sz); */
grab_sub_body_contents(val, deref, data);
break;
case OBJ_BLOB:
/* grab_blob_values(val, deref, obj, buf, sz); */
grab_sub_body_contents(val, deref, data);
break;
default:
die("Eh? Object of type %d?", obj->type);
}
}
static inline char *copy_advance(char *dst, const char *src)
{
while (*src)
*dst++ = *src++;
return dst;
}
static const char *lstrip_ref_components(const char *refname, int len)
{
long remaining = len;
const char *start = xstrdup(refname);
const char *to_free = start;
if (len < 0) {
int i;
const char *p = refname;
/* Find total no of '/' separated path-components */
for (i = 0; p[i]; p[i] == '/' ? i++ : *p++)
;
/*
* The number of components we need to strip is now
* the total minus the components to be left (Plus one
* because we count the number of '/', but the number
* of components is one more than the no of '/').
*/
remaining = i + len + 1;
}
while (remaining > 0) {
switch (*start++) {
case '\0':
free((char *)to_free);
return xstrdup("");
case '/':
remaining--;
break;
}
}
start = xstrdup(start);
free((char *)to_free);
return start;
}
static const char *rstrip_ref_components(const char *refname, int len)
{
long remaining = len;
const char *start = xstrdup(refname);
const char *to_free = start;
if (len < 0) {
int i;
const char *p = refname;
/* Find total no of '/' separated path-components */
for (i = 0; p[i]; p[i] == '/' ? i++ : *p++)
;
/*
* The number of components we need to strip is now
* the total minus the components to be left (Plus one
* because we count the number of '/', but the number
* of components is one more than the no of '/').
*/
remaining = i + len + 1;
}
while (remaining-- > 0) {
char *p = strrchr(start, '/');
if (!p) {
free((char *)to_free);
return xstrdup("");
} else
p[0] = '\0';
}
return start;
}
static const char *show_ref(struct refname_atom *atom, const char *refname)
{
if (atom->option == R_SHORT)
return refs_shorten_unambiguous_ref(get_main_ref_store(the_repository),
refname,
warn_ambiguous_refs);
else if (atom->option == R_LSTRIP)
return lstrip_ref_components(refname, atom->lstrip);
else if (atom->option == R_RSTRIP)
return rstrip_ref_components(refname, atom->rstrip);
else
return xstrdup(refname);
}
static void fill_remote_ref_details(struct used_atom *atom, const char *refname,
struct branch *branch, const char **s)
{
int num_ours, num_theirs;
if (atom->u.remote_ref.option == RR_REF)
*s = show_ref(&atom->u.remote_ref.refname, refname);
else if (atom->u.remote_ref.option == RR_TRACK) {
if (stat_tracking_info(branch, &num_ours, &num_theirs,
NULL, atom->u.remote_ref.push,
AHEAD_BEHIND_FULL) < 0) {
*s = xstrdup(msgs.gone);
} else if (!num_ours && !num_theirs)
*s = xstrdup("");
else if (!num_ours)
*s = xstrfmt(msgs.behind, num_theirs);
else if (!num_theirs)
*s = xstrfmt(msgs.ahead, num_ours);
else
*s = xstrfmt(msgs.ahead_behind,
num_ours, num_theirs);
if (!atom->u.remote_ref.nobracket && *s[0]) {
const char *to_free = *s;
*s = xstrfmt("[%s]", *s);
free((void *)to_free);
}
} else if (atom->u.remote_ref.option == RR_TRACKSHORT) {
if (stat_tracking_info(branch, &num_ours, &num_theirs,
NULL, atom->u.remote_ref.push,
AHEAD_BEHIND_FULL) < 0) {
*s = xstrdup("");
return;
}
if (!num_ours && !num_theirs)
*s = xstrdup("=");
else if (!num_ours)
*s = xstrdup("<");
else if (!num_theirs)
*s = xstrdup(">");
else
*s = xstrdup("<>");
} else if (atom->u.remote_ref.option == RR_REMOTE_NAME) {
int explicit;
const char *remote = atom->u.remote_ref.push ?
pushremote_for_branch(branch, &explicit) :
remote_for_branch(branch, &explicit);
*s = xstrdup(explicit ? remote : "");
} else if (atom->u.remote_ref.option == RR_REMOTE_REF) {
const char *merge;
merge = remote_ref_for_branch(branch, atom->u.remote_ref.push);
*s = xstrdup(merge ? merge : "");
} else
BUG("unhandled RR_* enum");
}
char *get_head_description(void)
{
struct strbuf desc = STRBUF_INIT;
struct wt_status_state state;
memset(&state, 0, sizeof(state));
wt_status_get_state(the_repository, &state, 1);
if (state.rebase_in_progress ||
state.rebase_interactive_in_progress) {
if (state.branch)
strbuf_addf(&desc, _("(no branch, rebasing %s)"),
state.branch);
else
strbuf_addf(&desc, _("(no branch, rebasing detached HEAD %s)"),
state.detached_from);
} else if (state.bisect_in_progress)
strbuf_addf(&desc, _("(no branch, bisect started on %s)"),
state.bisecting_from);
else if (state.detached_from) {
if (state.detached_at)
strbuf_addf(&desc, _("(HEAD detached at %s)"),
state.detached_from);
else
strbuf_addf(&desc, _("(HEAD detached from %s)"),
state.detached_from);
} else
strbuf_addstr(&desc, _("(no branch)"));
wt_status_state_free_buffers(&state);
return strbuf_detach(&desc, NULL);
}
static const char *get_symref(struct used_atom *atom, struct ref_array_item *ref)
{
if (!ref->symref)
return xstrdup("");
else
return show_ref(&atom->u.refname, ref->symref);
}
static const char *get_refname(struct used_atom *atom, struct ref_array_item *ref)
{
if (ref->kind & FILTER_REFS_DETACHED_HEAD)
return get_head_description();
return show_ref(&atom->u.refname, ref->refname);
}
static int get_object(struct ref_array_item *ref, int deref, struct object **obj,
struct expand_data *oi, struct strbuf *err)
{
/* parse_object_buffer() will set eaten to 0 if free() will be needed */
int eaten = 1;
if (oi->info.contentp) {
/* We need to know that to use parse_object_buffer properly */
oi->info.sizep = &oi->size;
oi->info.typep = &oi->type;
}
if (oid_object_info_extended(the_repository, &oi->oid, &oi->info,
OBJECT_INFO_LOOKUP_REPLACE))
return strbuf_addf_ret(err, -1, _("missing object %s for %s"),
oid_to_hex(&oi->oid), ref->refname);
if (oi->info.disk_sizep && oi->disk_size < 0)
BUG("Object size is less than zero.");
if (oi->info.contentp) {
*obj = parse_object_buffer(the_repository, &oi->oid, oi->type, oi->size, oi->content, &eaten);
if (!*obj) {
if (!eaten)
free(oi->content);
return strbuf_addf_ret(err, -1, _("parse_object_buffer failed on %s for %s"),
oid_to_hex(&oi->oid), ref->refname);
}
grab_values(ref->value, deref, *obj, oi);
}
grab_common_values(ref->value, deref, oi);
if (!eaten)
free(oi->content);
return 0;
}
static void populate_worktree_map(struct hashmap *map, struct worktree **worktrees)
{
int i;
for (i = 0; worktrees[i]; i++) {
if (worktrees[i]->head_ref) {
struct ref_to_worktree_entry *entry;
entry = xmalloc(sizeof(*entry));
entry->wt = worktrees[i];
hashmap_entry_init(&entry->ent,
strhash(worktrees[i]->head_ref));
hashmap_add(map, &entry->ent);
}
}
}
static void lazy_init_worktree_map(void)
{
if (ref_to_worktree_map.worktrees)
return;
ref_to_worktree_map.worktrees = get_worktrees();
hashmap_init(&(ref_to_worktree_map.map), ref_to_worktree_map_cmpfnc, NULL, 0);
populate_worktree_map(&(ref_to_worktree_map.map), ref_to_worktree_map.worktrees);
}
static char *get_worktree_path(const struct ref_array_item *ref)
{
struct hashmap_entry entry, *e;
struct ref_to_worktree_entry *lookup_result;
lazy_init_worktree_map();
hashmap_entry_init(&entry, strhash(ref->refname));
e = hashmap_get(&(ref_to_worktree_map.map), &entry, ref->refname);
if (!e)
return xstrdup("");
lookup_result = container_of(e, struct ref_to_worktree_entry, ent);
return xstrdup(lookup_result->wt->path);
}
/*
* Parse the object referred by ref, and grab needed value.
*/
static int populate_value(struct ref_array_item *ref, struct strbuf *err)
{
struct object *obj;
int i;
struct object_info empty = OBJECT_INFO_INIT;
int ahead_behind_atoms = 0;
CALLOC_ARRAY(ref->value, used_atom_cnt);
if (need_symref && (ref->flag & REF_ISSYMREF) && !ref->symref) {
ref->symref = refs_resolve_refdup(get_main_ref_store(the_repository),
ref->refname,
RESOLVE_REF_READING,
NULL, NULL);
if (!ref->symref)
ref->symref = xstrdup("");
}
/* Fill in specials first */
for (i = 0; i < used_atom_cnt; i++) {
struct used_atom *atom = &used_atom[i];
enum atom_type atom_type = atom->atom_type;
const char *name = used_atom[i].name;
struct atom_value *v = &ref->value[i];
int deref = 0;
const char *refname;
struct branch *branch = NULL;
v->s_size = ATOM_SIZE_UNSPECIFIED;
v->handler = append_atom;
v->value = 0;
v->atom = atom;
if (*name == '*') {
deref = 1;
name++;
}
if (atom_type == ATOM_REFNAME)
refname = get_refname(atom, ref);
else if (atom_type == ATOM_WORKTREEPATH) {
if (ref->kind == FILTER_REFS_BRANCHES)
v->s = get_worktree_path(ref);
else
v->s = xstrdup("");
continue;
}
else if (atom_type == ATOM_SYMREF)
refname = get_symref(atom, ref);
else if (atom_type == ATOM_UPSTREAM) {
const char *branch_name;
/* only local branches may have an upstream */
if (!skip_prefix(ref->refname, "refs/heads/",
&branch_name)) {
v->s = xstrdup("");
continue;
}
branch = branch_get(branch_name);
refname = branch_get_upstream(branch, NULL);
if (refname)
fill_remote_ref_details(atom, refname, branch, &v->s);
else
v->s = xstrdup("");
continue;
} else if (atom_type == ATOM_PUSH && atom->u.remote_ref.push) {
const char *branch_name;
v->s = xstrdup("");
if (!skip_prefix(ref->refname, "refs/heads/",
&branch_name))
continue;
branch = branch_get(branch_name);
if (atom->u.remote_ref.push_remote)
refname = NULL;
else {
refname = branch_get_push(branch, NULL);
if (!refname)
continue;
}
/* We will definitely re-init v->s on the next line. */
free((char *)v->s);
fill_remote_ref_details(atom, refname, branch, &v->s);
continue;
} else if (atom_type == ATOM_COLOR) {
v->s = xstrdup(atom->u.color);
continue;
} else if (atom_type == ATOM_FLAG) {
char buf[256], *cp = buf;
if (ref->flag & REF_ISSYMREF)
cp = copy_advance(cp, ",symref");
if (ref->flag & REF_ISPACKED)
cp = copy_advance(cp, ",packed");
if (cp == buf)
v->s = xstrdup("");
else {
*cp = '\0';
v->s = xstrdup(buf + 1);
}
continue;
} else if (!deref && atom_type == ATOM_OBJECTNAME &&
grab_oid(name, "objectname", &ref->objectname, v, atom)) {
continue;
} else if (atom_type == ATOM_HEAD) {
if (atom->u.head && !strcmp(ref->refname, atom->u.head))
v->s = xstrdup("*");
else
v->s = xstrdup(" ");
continue;
} else if (atom_type == ATOM_ALIGN) {
v->handler = align_atom_handler;
v->s = xstrdup("");
continue;
} else if (atom_type == ATOM_END) {
v->handler = end_atom_handler;
v->s = xstrdup("");
continue;
} else if (atom_type == ATOM_IF) {
const char *s;
if (skip_prefix(name, "if:", &s))
v->s = xstrdup(s);
else
v->s = xstrdup("");
v->handler = if_atom_handler;
continue;
} else if (atom_type == ATOM_THEN) {
v->handler = then_atom_handler;
v->s = xstrdup("");
continue;
} else if (atom_type == ATOM_ELSE) {
v->handler = else_atom_handler;
v->s = xstrdup("");
continue;
} else if (atom_type == ATOM_REST) {
if (ref->rest)
v->s = xstrdup(ref->rest);
else
v->s = xstrdup("");
continue;
} else if (atom_type == ATOM_AHEADBEHIND) {
if (ref->counts) {
const struct ahead_behind_count *count;
count = ref->counts[ahead_behind_atoms++];
v->s = xstrfmt("%d %d", count->ahead, count->behind);
} else {
/* Not a commit. */
v->s = xstrdup("");
}
continue;
} else
continue;
if (!deref)
v->s = xstrdup(refname);
else
v->s = xstrfmt("%s^{}", refname);
free((char *)refname);
}
for (i = 0; i < used_atom_cnt; i++) {
struct atom_value *v = &ref->value[i];
if (v->s == NULL && used_atom[i].source == SOURCE_NONE)
return strbuf_addf_ret(err, -1, _("missing object %s for %s"),
oid_to_hex(&ref->objectname), ref->refname);
}
if (need_tagged)
oi.info.contentp = &oi.content;
if (!memcmp(&oi.info, &empty, sizeof(empty)) &&
!memcmp(&oi_deref.info, &empty, sizeof(empty)))
return 0;
oi.oid = ref->objectname;
if (get_object(ref, 0, &obj, &oi, err))
return -1;
/*
* If there is no atom that wants to know about tagged
* object, we are done.
*/
if (!need_tagged || (obj->type != OBJ_TAG))
return 0;
/*
* If it is a tag object, see if we use the peeled value. If we do,
* grab the peeled OID.
*/
if (need_tagged && peel_iterated_oid(the_repository, &obj->oid, &oi_deref.oid))
die("bad tag");
return get_object(ref, 1, &obj, &oi_deref, err);
}
/*
* Given a ref, return the value for the atom. This lazily gets value
* out of the object by calling populate value.
*/
static int get_ref_atom_value(struct ref_array_item *ref, int atom,
struct atom_value **v, struct strbuf *err)
{
if (!ref->value) {
if (populate_value(ref, err))
return -1;
fill_missing_values(ref->value);
}
*v = &ref->value[atom];
return 0;
}
/*
* Return 1 if the refname matches one of the patterns, otherwise 0.
* A pattern can be a literal prefix (e.g. a refname "refs/heads/master"
* matches a pattern "refs/heads/mas") or a wildcard (e.g. the same ref
* matches "refs/heads/mas*", too).
*/
static int match_pattern(const char **patterns, const char *refname,
int ignore_case)
{
unsigned flags = 0;
if (ignore_case)
flags |= WM_CASEFOLD;
/*
* When no '--format' option is given we need to skip the prefix
* for matching refs of tags and branches.
*/
(void)(skip_prefix(refname, "refs/tags/", &refname) ||
skip_prefix(refname, "refs/heads/", &refname) ||
skip_prefix(refname, "refs/remotes/", &refname) ||
skip_prefix(refname, "refs/", &refname));
for (; *patterns; patterns++) {
if (!wildmatch(*patterns, refname, flags))
return 1;
}
return 0;
}
/*
* Return 1 if the refname matches one of the patterns, otherwise 0.
* A pattern can be path prefix (e.g. a refname "refs/heads/master"
* matches a pattern "refs/heads/" but not "refs/heads/m") or a
* wildcard (e.g. the same ref matches "refs/heads/m*", too).
*/
static int match_name_as_path(const char **pattern, const char *refname,
int ignore_case)
{
int namelen = strlen(refname);
unsigned flags = WM_PATHNAME;
if (ignore_case)
flags |= WM_CASEFOLD;
for (; *pattern; pattern++) {
const char *p = *pattern;
int plen = strlen(p);
if ((plen <= namelen) &&
!strncmp(refname, p, plen) &&
(refname[plen] == '\0' ||
refname[plen] == '/' ||
p[plen-1] == '/'))
return 1;
if (!wildmatch(p, refname, flags))
return 1;
}
return 0;
}
/* Return 1 if the refname matches one of the patterns, otherwise 0. */
static int filter_pattern_match(struct ref_filter *filter, const char *refname)
{
if (!*filter->name_patterns)
return 1; /* No pattern always matches */
if (filter->match_as_path)
return match_name_as_path(filter->name_patterns, refname,
filter->ignore_case);
return match_pattern(filter->name_patterns, refname,
filter->ignore_case);
}
static int filter_exclude_match(struct ref_filter *filter, const char *refname)
{
if (!filter->exclude.nr)
return 0;
if (filter->match_as_path)
return match_name_as_path(filter->exclude.v, refname,
filter->ignore_case);
return match_pattern(filter->exclude.v, refname, filter->ignore_case);
}
/*
* This is the same as for_each_fullref_in(), but it tries to iterate
* only over the patterns we'll care about. Note that it _doesn't_ do a full
* pattern match, so the callback still has to match each ref individually.
*/
static int for_each_fullref_in_pattern(struct ref_filter *filter,
each_ref_fn cb,
void *cb_data)
{
if (filter->kind & FILTER_REFS_ROOT_REFS) {
/* In this case, we want to print all refs including root refs. */
return refs_for_each_include_root_refs(get_main_ref_store(the_repository),
cb, cb_data);
}
if (!filter->match_as_path) {
/*
* in this case, the patterns are applied after
* prefixes like "refs/heads/" etc. are stripped off,
* so we have to look at everything:
*/
return refs_for_each_fullref_in(get_main_ref_store(the_repository),
"", NULL, cb, cb_data);
}
if (filter->ignore_case) {
/*
* we can't handle case-insensitive comparisons,
* so just return everything and let the caller
* sort it out.
*/
return refs_for_each_fullref_in(get_main_ref_store(the_repository),
"", NULL, cb, cb_data);
}
if (!filter->name_patterns[0]) {
/* no patterns; we have to look at everything */
return refs_for_each_fullref_in(get_main_ref_store(the_repository),
"", filter->exclude.v, cb, cb_data);
}
return refs_for_each_fullref_in_prefixes(get_main_ref_store(the_repository),
NULL, filter->name_patterns,
filter->exclude.v,
cb, cb_data);
}
/*
* Given a ref (oid, refname), check if the ref belongs to the array
* of oids. If the given ref is a tag, check if the given tag points
* at one of the oids in the given oid array. Returns non-zero if a
* match is found.
*
* NEEDSWORK:
* As the refs are cached we might know what refname peels to without
* the need to parse the object via parse_object(). peel_ref() might be a
* more efficient alternative to obtain the pointee.
*/
static int match_points_at(struct oid_array *points_at,
const struct object_id *oid,
const char *refname)
{
struct object *obj;
if (oid_array_lookup(points_at, oid) >= 0)
return 1;
obj = parse_object_with_flags(the_repository, oid,
PARSE_OBJECT_SKIP_HASH_CHECK);
while (obj && obj->type == OBJ_TAG) {
struct tag *tag = (struct tag *)obj;
if (parse_tag(tag) < 0) {
obj = NULL;
break;
}
if (oid_array_lookup(points_at, get_tagged_oid(tag)) >= 0)
return 1;
obj = tag->tagged;
}
if (!obj)
die(_("malformed object at '%s'"), refname);
return 0;
}
/*
* Allocate space for a new ref_array_item and copy the name and oid to it.
*
* Callers can then fill in other struct members at their leisure.
*/
static struct ref_array_item *new_ref_array_item(const char *refname,
const struct object_id *oid)
{
struct ref_array_item *ref;
FLEX_ALLOC_STR(ref, refname, refname);
oidcpy(&ref->objectname, oid);
ref->rest = NULL;
return ref;
}
static void ref_array_append(struct ref_array *array, struct ref_array_item *ref)
{
ALLOC_GROW(array->items, array->nr + 1, array->alloc);
array->items[array->nr++] = ref;
}
struct ref_array_item *ref_array_push(struct ref_array *array,
const char *refname,
const struct object_id *oid)
{
struct ref_array_item *ref = new_ref_array_item(refname, oid);
ref_array_append(array, ref);
return ref;
}
static int ref_kind_from_refname(const char *refname)
{
unsigned int i;
static struct {
const char *prefix;
unsigned int kind;
} ref_kind[] = {
{ "refs/heads/" , FILTER_REFS_BRANCHES },
{ "refs/remotes/" , FILTER_REFS_REMOTES },
{ "refs/tags/", FILTER_REFS_TAGS}
};
if (!strcmp(refname, "HEAD"))
return FILTER_REFS_DETACHED_HEAD;
for (i = 0; i < ARRAY_SIZE(ref_kind); i++) {
if (starts_with(refname, ref_kind[i].prefix))
return ref_kind[i].kind;
}
if (is_pseudo_ref(refname))
return FILTER_REFS_PSEUDOREFS;
if (is_root_ref(refname))
return FILTER_REFS_ROOT_REFS;
return FILTER_REFS_OTHERS;
}
static int filter_ref_kind(struct ref_filter *filter, const char *refname)
{
if (filter->kind == FILTER_REFS_BRANCHES ||
filter->kind == FILTER_REFS_REMOTES ||
filter->kind == FILTER_REFS_TAGS)
return filter->kind;
return ref_kind_from_refname(refname);
}
static struct ref_array_item *apply_ref_filter(const char *refname, const struct object_id *oid,
int flag, struct ref_filter *filter)
{
struct ref_array_item *ref;
struct commit *commit = NULL;
unsigned int kind;
if (flag & REF_BAD_NAME) {
warning(_("ignoring ref with broken name %s"), refname);
return NULL;
}
if (flag & REF_ISBROKEN) {
warning(_("ignoring broken ref %s"), refname);
return NULL;
}
/* Obtain the current ref kind from filter_ref_kind() and ignore unwanted refs. */
kind = filter_ref_kind(filter, refname);
/*
* Generally HEAD refs are printed with special description denoting a rebase,
* detached state and so forth. This is useful when only printing the HEAD ref
* But when it is being printed along with other root refs, it makes sense to
* keep the formatting consistent. So we mask the type to act like a root ref.
*/
if (filter->kind & FILTER_REFS_ROOT_REFS && kind == FILTER_REFS_DETACHED_HEAD)
kind = FILTER_REFS_ROOT_REFS;
else if (!(kind & filter->kind))
return NULL;
if (!filter_pattern_match(filter, refname))
return NULL;
if (filter_exclude_match(filter, refname))
return NULL;
if (filter->points_at.nr && !match_points_at(&filter->points_at, oid, refname))
return NULL;
/*
* A merge filter is applied on refs pointing to commits. Hence
* obtain the commit using the 'oid' available and discard all
* non-commits early. The actual filtering is done later.
*/
if (filter->reachable_from || filter->unreachable_from ||
filter->with_commit || filter->no_commit || filter->verbose) {
commit = lookup_commit_reference_gently(the_repository, oid, 1);
if (!commit)
return NULL;
/* We perform the filtering for the '--contains' option... */
if (filter->with_commit &&
!commit_contains(filter, commit, filter->with_commit, &filter->internal.contains_cache))
return NULL;
/* ...or for the `--no-contains' option */
if (filter->no_commit &&
commit_contains(filter, commit, filter->no_commit, &filter->internal.no_contains_cache))
return NULL;
}
/*
* We do not open the object yet; sort may only need refname
* to do its job and the resulting list may yet to be pruned
* by maxcount logic.
*/
ref = new_ref_array_item(refname, oid);
ref->commit = commit;
ref->flag = flag;
ref->kind = kind;
return ref;
}
struct ref_filter_cbdata {
struct ref_array *array;
struct ref_filter *filter;
};
/*
* A call-back given to for_each_ref(). Filter refs and keep them for
* later object processing.
*/
static int filter_one(const char *refname, const struct object_id *oid, int flag, void *cb_data)
{
struct ref_filter_cbdata *ref_cbdata = cb_data;
struct ref_array_item *ref;
ref = apply_ref_filter(refname, oid, flag, ref_cbdata->filter);
if (ref)
ref_array_append(ref_cbdata->array, ref);
return 0;
}
/* Free memory allocated for a ref_array_item */
static void free_array_item(struct ref_array_item *item)
{
free((char *)item->symref);
if (item->value) {
int i;
for (i = 0; i < used_atom_cnt; i++)
free((char *)item->value[i].s);
free(item->value);
}
free(item->counts);
free(item);
}
struct ref_filter_and_format_cbdata {
struct ref_filter *filter;
struct ref_format *format;
struct ref_filter_and_format_internal {
int count;
} internal;
};
static int filter_and_format_one(const char *refname, const struct object_id *oid, int flag, void *cb_data)
{
struct ref_filter_and_format_cbdata *ref_cbdata = cb_data;
struct ref_array_item *ref;
struct strbuf output = STRBUF_INIT, err = STRBUF_INIT;
ref = apply_ref_filter(refname, oid, flag, ref_cbdata->filter);
if (!ref)
return 0;
if (format_ref_array_item(ref, ref_cbdata->format, &output, &err))
die("%s", err.buf);
if (output.len || !ref_cbdata->format->array_opts.omit_empty) {
fwrite(output.buf, 1, output.len, stdout);
putchar('\n');
}
strbuf_release(&output);
strbuf_release(&err);
free_array_item(ref);
/*
* Increment the running count of refs that match the filter. If
* max_count is set and we've reached the max, stop the ref
* iteration by returning a nonzero value.
*/
if (ref_cbdata->format->array_opts.max_count &&
++ref_cbdata->internal.count >= ref_cbdata->format->array_opts.max_count)
return 1;
return 0;
}
/* Free all memory allocated for ref_array */
void ref_array_clear(struct ref_array *array)
{
int i;
for (i = 0; i < array->nr; i++)
free_array_item(array->items[i]);
FREE_AND_NULL(array->items);
array->nr = array->alloc = 0;
for (i = 0; i < used_atom_cnt; i++) {
struct used_atom *atom = &used_atom[i];
if (atom->atom_type == ATOM_HEAD)
free(atom->u.head);
free((char *)atom->name);
}
FREE_AND_NULL(used_atom);
used_atom_cnt = 0;
if (ref_to_worktree_map.worktrees) {
hashmap_clear_and_free(&(ref_to_worktree_map.map),
struct ref_to_worktree_entry, ent);
free_worktrees(ref_to_worktree_map.worktrees);
ref_to_worktree_map.worktrees = NULL;
}
FREE_AND_NULL(array->counts);
}
#define EXCLUDE_REACHED 0
#define INCLUDE_REACHED 1
static void reach_filter(struct ref_array *array,
struct commit_list **check_reachable,
int include_reached)
{
int i, old_nr;
struct commit **to_clear;
if (!*check_reachable)
return;
CALLOC_ARRAY(to_clear, array->nr);
for (i = 0; i < array->nr; i++) {
struct ref_array_item *item = array->items[i];
to_clear[i] = item->commit;
}
tips_reachable_from_bases(the_repository,
*check_reachable,
to_clear, array->nr,
UNINTERESTING);
old_nr = array->nr;
array->nr = 0;
for (i = 0; i < old_nr; i++) {
struct ref_array_item *item = array->items[i];
struct commit *commit = item->commit;
int is_merged = !!(commit->object.flags & UNINTERESTING);
if (is_merged == include_reached)
array->items[array->nr++] = array->items[i];
else
free_array_item(item);
}
clear_commit_marks_many(old_nr, to_clear, ALL_REV_FLAGS);
while (*check_reachable) {
struct commit *merge_commit = pop_commit(check_reachable);
clear_commit_marks(merge_commit, ALL_REV_FLAGS);
}
free(to_clear);
}
void filter_ahead_behind(struct repository *r,
struct ref_format *format,
struct ref_array *array)
{
struct commit **commits;
size_t commits_nr = format->bases.nr + array->nr;
if (!format->bases.nr || !array->nr)
return;
ALLOC_ARRAY(commits, commits_nr);
for (size_t i = 0; i < format->bases.nr; i++)
commits[i] = format->bases.items[i].util;
ALLOC_ARRAY(array->counts, st_mult(format->bases.nr, array->nr));
commits_nr = format->bases.nr;
array->counts_nr = 0;
for (size_t i = 0; i < array->nr; i++) {
const char *name = array->items[i]->refname;
commits[commits_nr] = lookup_commit_reference_by_name(name);
if (!commits[commits_nr])
continue;
CALLOC_ARRAY(array->items[i]->counts, format->bases.nr);
for (size_t j = 0; j < format->bases.nr; j++) {
struct ahead_behind_count *count;
count = &array->counts[array->counts_nr++];
count->tip_index = commits_nr;
count->base_index = j;
array->items[i]->counts[j] = count;
}
commits_nr++;
}
ahead_behind(r, commits, commits_nr, array->counts, array->counts_nr);
free(commits);
}
static int do_filter_refs(struct ref_filter *filter, unsigned int type, each_ref_fn fn, void *cb_data)
{
int ret = 0;
filter->kind = type & FILTER_REFS_KIND_MASK;
init_contains_cache(&filter->internal.contains_cache);
init_contains_cache(&filter->internal.no_contains_cache);
/* Simple per-ref filtering */
if (!filter->kind)
die("filter_refs: invalid type");
else {
/*
* For common cases where we need only branches or remotes or tags,
* we only iterate through those refs. If a mix of refs is needed,
* we iterate over all refs and filter out required refs with the help
* of filter_ref_kind().
*/
if (filter->kind == FILTER_REFS_BRANCHES)
ret = refs_for_each_fullref_in(get_main_ref_store(the_repository),
"refs/heads/", NULL,
fn, cb_data);
else if (filter->kind == FILTER_REFS_REMOTES)
ret = refs_for_each_fullref_in(get_main_ref_store(the_repository),
"refs/remotes/", NULL,
fn, cb_data);
else if (filter->kind == FILTER_REFS_TAGS)
ret = refs_for_each_fullref_in(get_main_ref_store(the_repository),
"refs/tags/", NULL, fn,
cb_data);
else if (filter->kind & FILTER_REFS_REGULAR)
ret = for_each_fullref_in_pattern(filter, fn, cb_data);
/*
* When printing all ref types, HEAD is already included,
* so we don't want to print HEAD again.
*/
if (!ret && !(filter->kind & FILTER_REFS_ROOT_REFS) &&
(filter->kind & FILTER_REFS_DETACHED_HEAD))
refs_head_ref(get_main_ref_store(the_repository), fn,
cb_data);
}
clear_contains_cache(&filter->internal.contains_cache);
clear_contains_cache(&filter->internal.no_contains_cache);
return ret;
}
/*
* API for filtering a set of refs. Based on the type of refs the user
* has requested, we iterate through those refs and apply filters
* as per the given ref_filter structure and finally store the
* filtered refs in the ref_array structure.
*/
int filter_refs(struct ref_array *array, struct ref_filter *filter, unsigned int type)
{
struct ref_filter_cbdata ref_cbdata;
int save_commit_buffer_orig;
int ret = 0;
ref_cbdata.array = array;
ref_cbdata.filter = filter;
save_commit_buffer_orig = save_commit_buffer;
save_commit_buffer = 0;
ret = do_filter_refs(filter, type, filter_one, &ref_cbdata);
/* Filters that need revision walking */
reach_filter(array, &filter->reachable_from, INCLUDE_REACHED);
reach_filter(array, &filter->unreachable_from, EXCLUDE_REACHED);
save_commit_buffer = save_commit_buffer_orig;
return ret;
}
static inline int can_do_iterative_format(struct ref_filter *filter,
struct ref_sorting *sorting,
struct ref_format *format)
{
/*
* Filtering & formatting results within a single ref iteration
* callback is not compatible with options that require
* post-processing a filtered ref_array. These include:
* - filtering on reachability
* - sorting the filtered results
* - including ahead-behind information in the formatted output
*/
return !(filter->reachable_from ||
filter->unreachable_from ||
sorting ||
format->bases.nr);
}
void filter_and_format_refs(struct ref_filter *filter, unsigned int type,
struct ref_sorting *sorting,
struct ref_format *format)
{
if (can_do_iterative_format(filter, sorting, format)) {
int save_commit_buffer_orig;
struct ref_filter_and_format_cbdata ref_cbdata = {
.filter = filter,
.format = format,
};
save_commit_buffer_orig = save_commit_buffer;
save_commit_buffer = 0;
do_filter_refs(filter, type, filter_and_format_one, &ref_cbdata);
save_commit_buffer = save_commit_buffer_orig;
} else {
struct ref_array array = { 0 };
filter_refs(&array, filter, type);
filter_ahead_behind(the_repository, format, &array);
ref_array_sort(sorting, &array);
print_formatted_ref_array(&array, format);
ref_array_clear(&array);
}
}
static int compare_detached_head(struct ref_array_item *a, struct ref_array_item *b)
{
if (!(a->kind ^ b->kind))
BUG("ref_kind_from_refname() should only mark one ref as HEAD");
if (a->kind & FILTER_REFS_DETACHED_HEAD)
return -1;
else if (b->kind & FILTER_REFS_DETACHED_HEAD)
return 1;
BUG("should have died in the xor check above");
return 0;
}
static int memcasecmp(const void *vs1, const void *vs2, size_t n)
{
const char *s1 = vs1, *s2 = vs2;
const char *end = s1 + n;
for (; s1 < end; s1++, s2++) {
int diff = tolower(*s1) - tolower(*s2);
if (diff)
return diff;
}
return 0;
}
struct ref_sorting {
struct ref_sorting *next;
int atom; /* index into used_atom array (internal) */
enum ref_sorting_order sort_flags;
};
static int cmp_ref_sorting(struct ref_sorting *s, struct ref_array_item *a, struct ref_array_item *b)
{
struct atom_value *va, *vb;
int cmp;
int cmp_detached_head = 0;
cmp_type cmp_type = used_atom[s->atom].type;
struct strbuf err = STRBUF_INIT;
if (get_ref_atom_value(a, s->atom, &va, &err))
die("%s", err.buf);
if (get_ref_atom_value(b, s->atom, &vb, &err))
die("%s", err.buf);
strbuf_release(&err);
if (s->sort_flags & REF_SORTING_DETACHED_HEAD_FIRST &&
((a->kind | b->kind) & FILTER_REFS_DETACHED_HEAD)) {
cmp = compare_detached_head(a, b);
cmp_detached_head = 1;
} else if (s->sort_flags & REF_SORTING_VERSION) {
cmp = versioncmp(va->s, vb->s);
} else if (cmp_type == FIELD_STR) {
if (va->s_size < 0 && vb->s_size < 0) {
int (*cmp_fn)(const char *, const char *);
cmp_fn = s->sort_flags & REF_SORTING_ICASE
? strcasecmp : strcmp;
cmp = cmp_fn(va->s, vb->s);
} else {
size_t a_size = va->s_size < 0 ?
strlen(va->s) : va->s_size;
size_t b_size = vb->s_size < 0 ?
strlen(vb->s) : vb->s_size;
int (*cmp_fn)(const void *, const void *, size_t);
cmp_fn = s->sort_flags & REF_SORTING_ICASE
? memcasecmp : memcmp;
cmp = cmp_fn(va->s, vb->s, b_size > a_size ?
a_size : b_size);
if (!cmp) {
if (a_size > b_size)
cmp = 1;
else if (a_size < b_size)
cmp = -1;
}
}
} else {
if (va->value < vb->value)
cmp = -1;
else if (va->value == vb->value)
cmp = 0;
else
cmp = 1;
}
return (s->sort_flags & REF_SORTING_REVERSE && !cmp_detached_head)
? -cmp : cmp;
}
static int compare_refs(const void *a_, const void *b_, void *ref_sorting)
{
struct ref_array_item *a = *((struct ref_array_item **)a_);
struct ref_array_item *b = *((struct ref_array_item **)b_);
struct ref_sorting *s;
for (s = ref_sorting; s; s = s->next) {
int cmp = cmp_ref_sorting(s, a, b);
if (cmp)
return cmp;
}
s = ref_sorting;
return s && s->sort_flags & REF_SORTING_ICASE ?
strcasecmp(a->refname, b->refname) :
strcmp(a->refname, b->refname);
}
void ref_sorting_set_sort_flags_all(struct ref_sorting *sorting,
unsigned int mask, int on)
{
for (; sorting; sorting = sorting->next) {
if (on)
sorting->sort_flags |= mask;
else
sorting->sort_flags &= ~mask;
}
}
void ref_array_sort(struct ref_sorting *sorting, struct ref_array *array)
{
if (sorting)
QSORT_S(array->items, array->nr, compare_refs, sorting);
}
static void append_literal(const char *cp, const char *ep, struct ref_formatting_state *state)
{
struct strbuf *s = &state->stack->output;
while (*cp && (!ep || cp < ep)) {
if (*cp == '%') {
if (cp[1] == '%')
cp++;
else {
int ch = hex2chr(cp + 1);
if (0 <= ch) {
strbuf_addch(s, ch);
cp += 3;
continue;
}
}
}
strbuf_addch(s, *cp);
cp++;
}
}
int format_ref_array_item(struct ref_array_item *info,
struct ref_format *format,
struct strbuf *final_buf,
struct strbuf *error_buf)
{
const char *cp, *sp, *ep;
struct ref_formatting_state state = REF_FORMATTING_STATE_INIT;
state.quote_style = format->quote_style;
push_stack_element(&state.stack);
for (cp = format->format; *cp && (sp = find_next(cp)); cp = ep + 1) {
struct atom_value *atomv;
int pos;
ep = strchr(sp, ')');
if (cp < sp)
append_literal(cp, sp, &state);
pos = parse_ref_filter_atom(format, sp + 2, ep, error_buf);
if (pos < 0 || get_ref_atom_value(info, pos, &atomv, error_buf) ||
atomv->handler(atomv, &state, error_buf)) {
pop_stack_element(&state.stack);
return -1;
}
}
if (*cp) {
sp = cp + strlen(cp);
append_literal(cp, sp, &state);
}
if (format->need_color_reset_at_eol) {
struct atom_value resetv = ATOM_VALUE_INIT;
resetv.s = GIT_COLOR_RESET;
if (append_atom(&resetv, &state, error_buf)) {
pop_stack_element(&state.stack);
return -1;
}
}
if (state.stack->prev) {
pop_stack_element(&state.stack);
return strbuf_addf_ret(error_buf, -1, _("format: %%(end) atom missing"));
}
strbuf_addbuf(final_buf, &state.stack->output);
pop_stack_element(&state.stack);
return 0;
}
void print_formatted_ref_array(struct ref_array *array, struct ref_format *format)
{
int total;
struct strbuf output = STRBUF_INIT, err = STRBUF_INIT;
total = format->array_opts.max_count;
if (!total || array->nr < total)
total = array->nr;
for (int i = 0; i < total; i++) {
strbuf_reset(&err);
strbuf_reset(&output);
if (format_ref_array_item(array->items[i], format, &output, &err))
die("%s", err.buf);
if (output.len || !format->array_opts.omit_empty) {
fwrite(output.buf, 1, output.len, stdout);
putchar('\n');
}
}
strbuf_release(&err);
strbuf_release(&output);
}
void pretty_print_ref(const char *name, const struct object_id *oid,
struct ref_format *format)
{
struct ref_array_item *ref_item;
struct strbuf output = STRBUF_INIT;
struct strbuf err = STRBUF_INIT;
ref_item = new_ref_array_item(name, oid);
ref_item->kind = ref_kind_from_refname(name);
if (format_ref_array_item(ref_item, format, &output, &err))
die("%s", err.buf);
fwrite(output.buf, 1, output.len, stdout);
putchar('\n');
strbuf_release(&err);
strbuf_release(&output);
free_array_item(ref_item);
}
static int parse_sorting_atom(const char *atom)
{
/*
* This parses an atom using a dummy ref_format, since we don't
* actually care about the formatting details.
*/
struct ref_format dummy = REF_FORMAT_INIT;
const char *end = atom + strlen(atom);
struct strbuf err = STRBUF_INIT;
int res = parse_ref_filter_atom(&dummy, atom, end, &err);
if (res < 0)
die("%s", err.buf);
strbuf_release(&err);
return res;
}
static void parse_ref_sorting(struct ref_sorting **sorting_tail, const char *arg)
{
struct ref_sorting *s;
CALLOC_ARRAY(s, 1);
s->next = *sorting_tail;
*sorting_tail = s;
if (*arg == '-') {
s->sort_flags |= REF_SORTING_REVERSE;
arg++;
}
if (skip_prefix(arg, "version:", &arg) ||
skip_prefix(arg, "v:", &arg))
s->sort_flags |= REF_SORTING_VERSION;
s->atom = parse_sorting_atom(arg);
}
struct ref_sorting *ref_sorting_options(struct string_list *options)
{
struct string_list_item *item;
struct ref_sorting *sorting = NULL, **tail = &sorting;
if (options->nr) {
for_each_string_list_item(item, options)
parse_ref_sorting(tail, item->string);
}
/*
* From here on, the ref_sorting list should be used to talk
* about the sort order used for the output. The caller
* should not touch the string form anymore.
*/
string_list_clear(options, 0);
return sorting;
}
void ref_sorting_release(struct ref_sorting *sorting)
{
while (sorting) {
struct ref_sorting *next = sorting->next;
free(sorting);
sorting = next;
}
}
int parse_opt_merge_filter(const struct option *opt, const char *arg, int unset)
{
struct ref_filter *rf = opt->value;
struct object_id oid;
struct commit *merge_commit;
BUG_ON_OPT_NEG(unset);
if (repo_get_oid(the_repository, arg, &oid))
die(_("malformed object name %s"), arg);
merge_commit = lookup_commit_reference_gently(the_repository, &oid, 0);
if (!merge_commit)
return error(_("option `%s' must point to a commit"), opt->long_name);
if (starts_with(opt->long_name, "no"))
commit_list_insert(merge_commit, &rf->unreachable_from);
else
commit_list_insert(merge_commit, &rf->reachable_from);
return 0;
}
void ref_filter_init(struct ref_filter *filter)
{
struct ref_filter blank = REF_FILTER_INIT;
memcpy(filter, &blank, sizeof(blank));
}
void ref_filter_clear(struct ref_filter *filter)
{
strvec_clear(&filter->exclude);
oid_array_clear(&filter->points_at);
free_commit_list(filter->with_commit);
free_commit_list(filter->no_commit);
free_commit_list(filter->reachable_from);
free_commit_list(filter->unreachable_from);
ref_filter_init(filter);
}
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