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git/scalar.c
Glen Choo a4e7e317f8 config: add ctx arg to config_fn_t 
Add a new "const struct config_context *ctx" arg to config_fn_t to hold
additional information about the config iteration operation.
config_context has a "struct key_value_info kvi" member that holds
metadata about the config source being read (e.g. what kind of config
source it is, the filename, etc). In this series, we're only interested
in .kvi, so we could have just used "struct key_value_info" as an arg,
but config_context makes it possible to add/adjust members in the future
without changing the config_fn_t signature. We could also consider other
ways of organizing the args (e.g. moving the config name and value into
config_context or key_value_info), but in my experiments, the
incremental benefit doesn't justify the added complexity (e.g. a
config_fn_t will sometimes invoke another config_fn_t but with a
different config value).

In subsequent commits, the .kvi member will replace the global "struct
config_reader" in config.c, making config iteration a global-free
operation. It requires much more work for the machinery to provide
meaningful values of .kvi, so for now, merely change the signature and
call sites, pass NULL as a placeholder value, and don't rely on the arg
in any meaningful way.

Most of the changes are performed by
contrib/coccinelle/config_fn_ctx.pending.cocci, which, for every
config_fn_t:

- Modifies the signature to accept "const struct config_context *ctx"
- Passes "ctx" to any inner config_fn_t, if needed
- Adds UNUSED attributes to "ctx", if needed

Most config_fn_t instances are easily identified by seeing if they are
called by the various config functions. Most of the remaining ones are
manually named in the .cocci patch. Manual cleanups are still needed,
but the majority of it is trivial; it's either adjusting config_fn_t
that the .cocci patch didn't catch, or adding forward declarations of
"struct config_context ctx" to make the signatures make sense.

The non-trivial changes are in cases where we are invoking a config_fn_t
outside of config machinery, and we now need to decide what value of
"ctx" to pass. These cases are:

- trace2/tr2_cfg.c:tr2_cfg_set_fl()

  This is indirectly called by git_config_set() so that the trace2
  machinery can notice the new config values and update its settings
  using the tr2 config parsing function, i.e. tr2_cfg_cb().

- builtin/checkout.c:checkout_main()

  This calls git_xmerge_config() as a shorthand for parsing a CLI arg.
  This might be worth refactoring away in the future, since
  git_xmerge_config() can call git_default_config(), which can do much
  more than just parsing.

Handle them by creating a KVI_INIT macro that initializes "struct
key_value_info" to a reasonable default, and use that to construct the
"ctx" arg.

Signed-off-by: Glen Choo <chooglen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-06-28 14:06:39 -07:00

951 lines
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/*
* The Scalar command-line interface.
*/
#include "git-compat-util.h"
#include "abspath.h"
#include "gettext.h"
#include "parse-options.h"
#include "config.h"
#include "run-command.h"
#include "simple-ipc.h"
#include "fsmonitor-ipc.h"
#include "fsmonitor-settings.h"
#include "refs.h"
#include "dir.h"
#include "packfile.h"
#include "help.h"
#include "setup.h"
#include "trace2.h"
static void setup_enlistment_directory(int argc, const char **argv,
const char * const *usagestr,
const struct option *options,
struct strbuf *enlistment_root)
{
struct strbuf path = STRBUF_INIT;
int enlistment_is_repo_parent = 0;
size_t len;
if (startup_info->have_repository)
BUG("gitdir already set up?!?");
if (argc > 1)
usage_with_options(usagestr, options);
/* find the worktree, determine its corresponding root */
if (argc == 1) {
strbuf_add_absolute_path(&path, argv[0]);
if (!is_directory(path.buf))
die(_("'%s' does not exist"), path.buf);
if (chdir(path.buf) < 0)
die_errno(_("could not switch to '%s'"), path.buf);
} else if (strbuf_getcwd(&path) < 0)
die(_("need a working directory"));
strbuf_trim_trailing_dir_sep(&path);
/* check if currently in enlistment root with src/ workdir */
len = path.len;
strbuf_addstr(&path, "/src");
if (is_nonbare_repository_dir(&path)) {
enlistment_is_repo_parent = 1;
if (chdir(path.buf) < 0)
die_errno(_("could not switch to '%s'"), path.buf);
}
strbuf_setlen(&path, len);
setup_git_directory();
if (!the_repository->worktree)
die(_("Scalar enlistments require a worktree"));
if (enlistment_root) {
if (enlistment_is_repo_parent)
strbuf_addbuf(enlistment_root, &path);
else
strbuf_addstr(enlistment_root, the_repository->worktree);
}
strbuf_release(&path);
}
static int run_git(const char *arg, ...)
{
struct child_process cmd = CHILD_PROCESS_INIT;
va_list args;
const char *p;
va_start(args, arg);
strvec_push(&cmd.args, arg);
while ((p = va_arg(args, const char *)))
strvec_push(&cmd.args, p);
va_end(args);
cmd.git_cmd = 1;
return run_command(&cmd);
}
struct scalar_config {
const char *key;
const char *value;
int overwrite_on_reconfigure;
};
static int set_scalar_config(const struct scalar_config *config, int reconfigure)
{
char *value = NULL;
int res;
if ((reconfigure && config->overwrite_on_reconfigure) ||
git_config_get_string(config->key, &value)) {
trace2_data_string("scalar", the_repository, config->key, "created");
res = git_config_set_gently(config->key, config->value);
} else {
trace2_data_string("scalar", the_repository, config->key, "exists");
res = 0;
}
free(value);
return res;
}
static int have_fsmonitor_support(void)
{
return fsmonitor_ipc__is_supported() &&
fsm_settings__get_reason(the_repository) == FSMONITOR_REASON_OK;
}
static int set_recommended_config(int reconfigure)
{
struct scalar_config config[] = {
/* Required */
{ "am.keepCR", "true", 1 },
{ "core.FSCache", "true", 1 },
{ "core.multiPackIndex", "true", 1 },
{ "core.preloadIndex", "true", 1 },
#ifndef WIN32
{ "core.untrackedCache", "true", 1 },
#else
/*
* Unfortunately, Scalar's Functional Tests demonstrated
* that the untracked cache feature is unreliable on Windows
* (which is a bummer because that platform would benefit the
* most from it). For some reason, freshly created files seem
* not to update the directory's `lastModified` time
* immediately, but the untracked cache would need to rely on
* that.
*
* Therefore, with a sad heart, we disable this very useful
* feature on Windows.
*/
{ "core.untrackedCache", "false", 1 },
#endif
{ "core.logAllRefUpdates", "true", 1 },
{ "credential.https://dev.azure.com.useHttpPath", "true", 1 },
{ "credential.validate", "false", 1 }, /* GCM4W-only */
{ "gc.auto", "0", 1 },
{ "gui.GCWarning", "false", 1 },
{ "index.skipHash", "false", 1 },
{ "index.threads", "true", 1 },
{ "index.version", "4", 1 },
{ "merge.stat", "false", 1 },
{ "merge.renames", "true", 1 },
{ "pack.useBitmaps", "false", 1 },
{ "pack.useSparse", "true", 1 },
{ "receive.autoGC", "false", 1 },
{ "feature.manyFiles", "false", 1 },
{ "feature.experimental", "false", 1 },
{ "fetch.unpackLimit", "1", 1 },
{ "fetch.writeCommitGraph", "false", 1 },
#ifdef WIN32
{ "http.sslBackend", "schannel", 1 },
#endif
/* Optional */
{ "status.aheadBehind", "false" },
{ "commitGraph.generationVersion", "1" },
{ "core.autoCRLF", "false" },
{ "core.safeCRLF", "false" },
{ "fetch.showForcedUpdates", "false" },
{ NULL, NULL },
};
int i;
char *value;
for (i = 0; config[i].key; i++) {
if (set_scalar_config(config + i, reconfigure))
return error(_("could not configure %s=%s"),
config[i].key, config[i].value);
}
if (have_fsmonitor_support()) {
struct scalar_config fsmonitor = { "core.fsmonitor", "true" };
if (set_scalar_config(&fsmonitor, reconfigure))
return error(_("could not configure %s=%s"),
fsmonitor.key, fsmonitor.value);
}
/*
* The `log.excludeDecoration` setting is special because it allows
* for multiple values.
*/
if (git_config_get_string("log.excludeDecoration", &value)) {
trace2_data_string("scalar", the_repository,
"log.excludeDecoration", "created");
if (git_config_set_multivar_gently("log.excludeDecoration",
"refs/prefetch/*",
CONFIG_REGEX_NONE, 0))
return error(_("could not configure "
"log.excludeDecoration"));
} else {
trace2_data_string("scalar", the_repository,
"log.excludeDecoration", "exists");
free(value);
}
return 0;
}
static int toggle_maintenance(int enable)
{
return run_git("maintenance",
enable ? "start" : "unregister",
enable ? NULL : "--force",
NULL);
}
static int add_or_remove_enlistment(int add)
{
int res;
if (!the_repository->worktree)
die(_("Scalar enlistments require a worktree"));
res = run_git("config", "--global", "--get", "--fixed-value",
"scalar.repo", the_repository->worktree, NULL);
/*
* If we want to add and the setting is already there, then do nothing.
* If we want to remove and the setting is not there, then do nothing.
*/
if ((add && !res) || (!add && res))
return 0;
return run_git("config", "--global", add ? "--add" : "--unset",
add ? "--no-fixed-value" : "--fixed-value",
"scalar.repo", the_repository->worktree, NULL);
}
static int start_fsmonitor_daemon(void)
{
assert(have_fsmonitor_support());
if (fsmonitor_ipc__get_state() != IPC_STATE__LISTENING)
return run_git("fsmonitor--daemon", "start", NULL);
return 0;
}
static int stop_fsmonitor_daemon(void)
{
assert(have_fsmonitor_support());
if (fsmonitor_ipc__get_state() == IPC_STATE__LISTENING)
return run_git("fsmonitor--daemon", "stop", NULL);
return 0;
}
static int register_dir(void)
{
if (add_or_remove_enlistment(1))
return error(_("could not add enlistment"));
if (set_recommended_config(0))
return error(_("could not set recommended config"));
if (toggle_maintenance(1))
warning(_("could not turn on maintenance"));
if (have_fsmonitor_support() && start_fsmonitor_daemon()) {
return error(_("could not start the FSMonitor daemon"));
}
return 0;
}
static int unregister_dir(void)
{
int res = 0;
if (toggle_maintenance(0))
res = error(_("could not turn off maintenance"));
if (add_or_remove_enlistment(0))
res = error(_("could not remove enlistment"));
return res;
}
/* printf-style interface, expects `<key>=<value>` argument */
static int set_config(const char *fmt, ...)
{
struct strbuf buf = STRBUF_INIT;
char *value;
int res;
va_list args;
va_start(args, fmt);
strbuf_vaddf(&buf, fmt, args);
va_end(args);
value = strchr(buf.buf, '=');
if (value)
*(value++) = '\0';
res = git_config_set_gently(buf.buf, value);
strbuf_release(&buf);
return res;
}
static char *remote_default_branch(const char *url)
{
struct child_process cp = CHILD_PROCESS_INIT;
struct strbuf out = STRBUF_INIT;
cp.git_cmd = 1;
strvec_pushl(&cp.args, "ls-remote", "--symref", url, "HEAD", NULL);
if (!pipe_command(&cp, NULL, 0, &out, 0, NULL, 0)) {
const char *line = out.buf;
while (*line) {
const char *eol = strchrnul(line, '\n'), *p;
size_t len = eol - line;
char *branch;
if (!skip_prefix(line, "ref: ", &p) ||
!strip_suffix_mem(line, &len, "\tHEAD")) {
line = eol + (*eol == '\n');
continue;
}
eol = line + len;
if (skip_prefix(p, "refs/heads/", &p)) {
branch = xstrndup(p, eol - p);
strbuf_release(&out);
return branch;
}
error(_("remote HEAD is not a branch: '%.*s'"),
(int)(eol - p), p);
strbuf_release(&out);
return NULL;
}
}
warning(_("failed to get default branch name from remote; "
"using local default"));
strbuf_reset(&out);
child_process_init(&cp);
cp.git_cmd = 1;
strvec_pushl(&cp.args, "symbolic-ref", "--short", "HEAD", NULL);
if (!pipe_command(&cp, NULL, 0, &out, 0, NULL, 0)) {
strbuf_trim(&out);
return strbuf_detach(&out, NULL);
}
strbuf_release(&out);
error(_("failed to get default branch name"));
return NULL;
}
static int delete_enlistment(struct strbuf *enlistment)
{
#ifdef WIN32
struct strbuf parent = STRBUF_INIT;
size_t offset;
char *path_sep;
#endif
if (unregister_dir())
return error(_("failed to unregister repository"));
#ifdef WIN32
/*
* Change the current directory to one outside of the enlistment so
* that we may delete everything underneath it.
*/
offset = offset_1st_component(enlistment->buf);
path_sep = find_last_dir_sep(enlistment->buf + offset);
strbuf_add(&parent, enlistment->buf,
path_sep ? path_sep - enlistment->buf : offset);
if (chdir(parent.buf) < 0) {
int res = error_errno(_("could not switch to '%s'"), parent.buf);
strbuf_release(&parent);
return res;
}
strbuf_release(&parent);
#endif
if (have_fsmonitor_support() && stop_fsmonitor_daemon())
return error(_("failed to stop the FSMonitor daemon"));
if (remove_dir_recursively(enlistment, 0))
return error(_("failed to delete enlistment directory"));
return 0;
}
/*
* Dummy implementation; Using `get_version_info()` would cause a link error
* without this.
*/
void load_builtin_commands(const char *prefix, struct cmdnames *cmds)
{
die("not implemented");
}
static int cmd_clone(int argc, const char **argv)
{
const char *branch = NULL;
int full_clone = 0, single_branch = 0, show_progress = isatty(2);
struct option clone_options[] = {
OPT_STRING('b', "branch", &branch, N_("<branch>"),
N_("branch to checkout after clone")),
OPT_BOOL(0, "full-clone", &full_clone,
N_("when cloning, create full working directory")),
OPT_BOOL(0, "single-branch", &single_branch,
N_("only download metadata for the branch that will "
"be checked out")),
OPT_END(),
};
const char * const clone_usage[] = {
N_("scalar clone [<options>] [--] <repo> [<dir>]"),
NULL
};
const char *url;
char *enlistment = NULL, *dir = NULL;
struct strbuf buf = STRBUF_INIT;
int res;
argc = parse_options(argc, argv, NULL, clone_options, clone_usage, 0);
if (argc == 2) {
url = argv[0];
enlistment = xstrdup(argv[1]);
} else if (argc == 1) {
url = argv[0];
strbuf_addstr(&buf, url);
/* Strip trailing slashes, if any */
while (buf.len > 0 && is_dir_sep(buf.buf[buf.len - 1]))
strbuf_setlen(&buf, buf.len - 1);
/* Strip suffix `.git`, if any */
strbuf_strip_suffix(&buf, ".git");
enlistment = find_last_dir_sep(buf.buf);
if (!enlistment) {
die(_("cannot deduce worktree name from '%s'"), url);
}
enlistment = xstrdup(enlistment + 1);
} else {
usage_msg_opt(_("You must specify a repository to clone."),
clone_usage, clone_options);
}
if (is_directory(enlistment))
die(_("directory '%s' exists already"), enlistment);
dir = xstrfmt("%s/src", enlistment);
strbuf_reset(&buf);
if (branch)
strbuf_addf(&buf, "init.defaultBranch=%s", branch);
else {
char *b = repo_default_branch_name(the_repository, 1);
strbuf_addf(&buf, "init.defaultBranch=%s", b);
free(b);
}
if ((res = run_git("-c", buf.buf, "init", "--", dir, NULL)))
goto cleanup;
if (chdir(dir) < 0) {
res = error_errno(_("could not switch to '%s'"), dir);
goto cleanup;
}
setup_git_directory();
/* common-main already logs `argv` */
trace2_def_repo(the_repository);
if (!branch && !(branch = remote_default_branch(url))) {
res = error(_("failed to get default branch for '%s'"), url);
goto cleanup;
}
if (set_config("remote.origin.url=%s", url) ||
set_config("remote.origin.fetch="
"+refs/heads/%s:refs/remotes/origin/%s",
single_branch ? branch : "*",
single_branch ? branch : "*") ||
set_config("remote.origin.promisor=true") ||
set_config("remote.origin.partialCloneFilter=blob:none")) {
res = error(_("could not configure remote in '%s'"), dir);
goto cleanup;
}
if (!full_clone &&
(res = run_git("sparse-checkout", "init", "--cone", NULL)))
goto cleanup;
if (set_recommended_config(0))
return error(_("could not configure '%s'"), dir);
if ((res = run_git("fetch", "--quiet",
show_progress ? "--progress" : "--no-progress",
"origin", NULL))) {
warning(_("partial clone failed; attempting full clone"));
if (set_config("remote.origin.promisor") ||
set_config("remote.origin.partialCloneFilter")) {
res = error(_("could not configure for full clone"));
goto cleanup;
}
if ((res = run_git("fetch", "--quiet",
show_progress ? "--progress" : "--no-progress",
"origin", NULL)))
goto cleanup;
}
if ((res = set_config("branch.%s.remote=origin", branch)))
goto cleanup;
if ((res = set_config("branch.%s.merge=refs/heads/%s",
branch, branch)))
goto cleanup;
strbuf_reset(&buf);
strbuf_addf(&buf, "origin/%s", branch);
res = run_git("checkout", "-f", "-t", buf.buf, NULL);
if (res)
goto cleanup;
res = register_dir();
cleanup:
free(enlistment);
free(dir);
strbuf_release(&buf);
return res;
}
static int cmd_diagnose(int argc, const char **argv)
{
struct option options[] = {
OPT_END(),
};
const char * const usage[] = {
N_("scalar diagnose [<enlistment>]"),
NULL
};
struct strbuf diagnostics_root = STRBUF_INIT;
int res = 0;
argc = parse_options(argc, argv, NULL, options,
usage, 0);
setup_enlistment_directory(argc, argv, usage, options, &diagnostics_root);
strbuf_addstr(&diagnostics_root, "/.scalarDiagnostics");
res = run_git("diagnose", "--mode=all", "-s", "%Y%m%d_%H%M%S",
"-o", diagnostics_root.buf, NULL);
strbuf_release(&diagnostics_root);
return res;
}
static int cmd_list(int argc, const char **argv UNUSED)
{
if (argc != 1)
die(_("`scalar list` does not take arguments"));
if (run_git("config", "--global", "--get-all", "scalar.repo", NULL) < 0)
return -1;
return 0;
}
static int cmd_register(int argc, const char **argv)
{
struct option options[] = {
OPT_END(),
};
const char * const usage[] = {
N_("scalar register [<enlistment>]"),
NULL
};
argc = parse_options(argc, argv, NULL, options,
usage, 0);
setup_enlistment_directory(argc, argv, usage, options, NULL);
return register_dir();
}
static int get_scalar_repos(const char *key, const char *value,
const struct config_context *ctx UNUSED,
void *data)
{
struct string_list *list = data;
if (!strcmp(key, "scalar.repo"))
string_list_append(list, value);
return 0;
}
static int remove_deleted_enlistment(struct strbuf *path)
{
int res = 0;
strbuf_realpath_forgiving(path, path->buf, 1);
if (run_git("config", "--global",
"--unset", "--fixed-value",
"scalar.repo", path->buf, NULL) < 0)
res = -1;
if (run_git("config", "--global",
"--unset", "--fixed-value",
"maintenance.repo", path->buf, NULL) < 0)
res = -1;
return res;
}
static int cmd_reconfigure(int argc, const char **argv)
{
int all = 0;
struct option options[] = {
OPT_BOOL('a', "all", &all,
N_("reconfigure all registered enlistments")),
OPT_END(),
};
const char * const usage[] = {
N_("scalar reconfigure [--all | <enlistment>]"),
NULL
};
struct string_list scalar_repos = STRING_LIST_INIT_DUP;
int i, res = 0;
struct repository r = { NULL };
struct strbuf commondir = STRBUF_INIT, gitdir = STRBUF_INIT;
argc = parse_options(argc, argv, NULL, options,
usage, 0);
if (!all) {
setup_enlistment_directory(argc, argv, usage, options, NULL);
return set_recommended_config(1);
}
if (argc > 0)
usage_msg_opt(_("--all or <enlistment>, but not both"),
usage, options);
git_config(get_scalar_repos, &scalar_repos);
for (i = 0; i < scalar_repos.nr; i++) {
const char *dir = scalar_repos.items[i].string;
strbuf_reset(&commondir);
strbuf_reset(&gitdir);
if (chdir(dir) < 0) {
struct strbuf buf = STRBUF_INIT;
if (errno != ENOENT) {
warning_errno(_("could not switch to '%s'"), dir);
res = -1;
continue;
}
strbuf_addstr(&buf, dir);
if (remove_deleted_enlistment(&buf))
res = error(_("could not remove stale "
"scalar.repo '%s'"), dir);
else
warning(_("removing stale scalar.repo '%s'"),
dir);
strbuf_release(&buf);
} else if (discover_git_directory(&commondir, &gitdir) < 0) {
warning_errno(_("git repository gone in '%s'"), dir);
res = -1;
} else {
git_config_clear();
the_repository = &r;
r.commondir = commondir.buf;
r.gitdir = gitdir.buf;
if (set_recommended_config(1) < 0)
res = -1;
}
}
string_list_clear(&scalar_repos, 1);
strbuf_release(&commondir);
strbuf_release(&gitdir);
return res;
}
static int cmd_run(int argc, const char **argv)
{
struct option options[] = {
OPT_END(),
};
struct {
const char *arg, *task;
} tasks[] = {
{ "config", NULL },
{ "commit-graph", "commit-graph" },
{ "fetch", "prefetch" },
{ "loose-objects", "loose-objects" },
{ "pack-files", "incremental-repack" },
{ NULL, NULL }
};
struct strbuf buf = STRBUF_INIT;
const char *usagestr[] = { NULL, NULL };
int i;
strbuf_addstr(&buf, N_("scalar run <task> [<enlistment>]\nTasks:\n"));
for (i = 0; tasks[i].arg; i++)
strbuf_addf(&buf, "\t%s\n", tasks[i].arg);
usagestr[0] = buf.buf;
argc = parse_options(argc, argv, NULL, options,
usagestr, 0);
if (!argc)
usage_with_options(usagestr, options);
if (!strcmp("all", argv[0])) {
i = -1;
} else {
for (i = 0; tasks[i].arg && strcmp(tasks[i].arg, argv[0]); i++)
; /* keep looking for the task */
if (i > 0 && !tasks[i].arg) {
error(_("no such task: '%s'"), argv[0]);
usage_with_options(usagestr, options);
}
}
argc--;
argv++;
setup_enlistment_directory(argc, argv, usagestr, options, NULL);
strbuf_release(&buf);
if (i == 0)
return register_dir();
if (i > 0)
return run_git("maintenance", "run",
"--task", tasks[i].task, NULL);
if (register_dir())
return -1;
for (i = 1; tasks[i].arg; i++)
if (run_git("maintenance", "run",
"--task", tasks[i].task, NULL))
return -1;
return 0;
}
static int cmd_unregister(int argc, const char **argv)
{
struct option options[] = {
OPT_END(),
};
const char * const usage[] = {
N_("scalar unregister [<enlistment>]"),
NULL
};
argc = parse_options(argc, argv, NULL, options,
usage, 0);
/*
* Be forgiving when the enlistment or worktree does not even exist any
* longer; This can be the case if a user deleted the worktree by
* mistake and _still_ wants to unregister the thing.
*/
if (argc == 1) {
struct strbuf src_path = STRBUF_INIT, workdir_path = STRBUF_INIT;
strbuf_addf(&src_path, "%s/src/.git", argv[0]);
strbuf_addf(&workdir_path, "%s/.git", argv[0]);
if (!is_directory(src_path.buf) && !is_directory(workdir_path.buf)) {
/* remove possible matching registrations */
int res = -1;
strbuf_strip_suffix(&src_path, "/.git");
res = remove_deleted_enlistment(&src_path) && res;
strbuf_strip_suffix(&workdir_path, "/.git");
res = remove_deleted_enlistment(&workdir_path) && res;
strbuf_release(&src_path);
strbuf_release(&workdir_path);
return res;
}
strbuf_release(&src_path);
strbuf_release(&workdir_path);
}
setup_enlistment_directory(argc, argv, usage, options, NULL);
return unregister_dir();
}
static int cmd_delete(int argc, const char **argv)
{
char *cwd = xgetcwd();
struct option options[] = {
OPT_END(),
};
const char * const usage[] = {
N_("scalar delete <enlistment>"),
NULL
};
struct strbuf enlistment = STRBUF_INIT;
int res = 0;
argc = parse_options(argc, argv, NULL, options,
usage, 0);
if (argc != 1)
usage_with_options(usage, options);
setup_enlistment_directory(argc, argv, usage, options, &enlistment);
if (dir_inside_of(cwd, enlistment.buf) >= 0)
res = error(_("refusing to delete current working directory"));
else {
close_object_store(the_repository->objects);
res = delete_enlistment(&enlistment);
}
strbuf_release(&enlistment);
free(cwd);
return res;
}
static int cmd_help(int argc, const char **argv)
{
struct option options[] = {
OPT_END(),
};
const char * const usage[] = {
"scalar help",
NULL
};
argc = parse_options(argc, argv, NULL, options,
usage, 0);
if (argc != 0)
usage_with_options(usage, options);
return run_git("help", "scalar", NULL);
}
static int cmd_version(int argc, const char **argv)
{
int verbose = 0, build_options = 0;
struct option options[] = {
OPT__VERBOSE(&verbose, N_("include Git version")),
OPT_BOOL(0, "build-options", &build_options,
N_("include Git's build options")),
OPT_END(),
};
const char * const usage[] = {
N_("scalar verbose [-v | --verbose] [--build-options]"),
NULL
};
struct strbuf buf = STRBUF_INIT;
argc = parse_options(argc, argv, NULL, options,
usage, 0);
if (argc != 0)
usage_with_options(usage, options);
get_version_info(&buf, build_options);
fprintf(stderr, "%s\n", buf.buf);
strbuf_release(&buf);
return 0;
}
static struct {
const char *name;
int (*fn)(int, const char **);
} builtins[] = {
{ "clone", cmd_clone },
{ "list", cmd_list },
{ "register", cmd_register },
{ "unregister", cmd_unregister },
{ "run", cmd_run },
{ "reconfigure", cmd_reconfigure },
{ "delete", cmd_delete },
{ "help", cmd_help },
{ "version", cmd_version },
{ "diagnose", cmd_diagnose },
{ NULL, NULL},
};
int cmd_main(int argc, const char **argv)
{
struct strbuf scalar_usage = STRBUF_INIT;
int i;
while (argc > 1 && *argv[1] == '-') {
if (!strcmp(argv[1], "-C")) {
if (argc < 3)
die(_("-C requires a <directory>"));
if (chdir(argv[2]) < 0)
die_errno(_("could not change to '%s'"),
argv[2]);
argc -= 2;
argv += 2;
} else if (!strcmp(argv[1], "-c")) {
if (argc < 3)
die(_("-c requires a <key>=<value> argument"));
git_config_push_parameter(argv[2]);
argc -= 2;
argv += 2;
} else
break;
}
if (argc > 1) {
argv++;
argc--;
for (i = 0; builtins[i].name; i++)
if (!strcmp(builtins[i].name, argv[0]))
return !!builtins[i].fn(argc, argv);
}
strbuf_addstr(&scalar_usage,
N_("scalar [-C <directory>] [-c <key>=<value>] "
"<command> [<options>]\n\nCommands:\n"));
for (i = 0; builtins[i].name; i++)
strbuf_addf(&scalar_usage, "\t%s\n", builtins[i].name);
usage(scalar_usage.buf);
}
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