mirror of
https://github.com/git/git.git
synced 2024-12-02 06:24:01 +08:00
512aaf9453
This will be reused by a new git check-ignore command. Also document validate_pathspec(). Signed-off-by: Adam Spiers <git@adamspiers.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
102 lines
3.0 KiB
C
102 lines
3.0 KiB
C
#include "cache.h"
|
|
#include "dir.h"
|
|
#include "pathspec.h"
|
|
|
|
/*
|
|
* Finds which of the given pathspecs match items in the index.
|
|
*
|
|
* For each pathspec, sets the corresponding entry in the seen[] array
|
|
* (which should be specs items long, i.e. the same size as pathspec)
|
|
* to the nature of the "closest" (i.e. most specific) match found for
|
|
* that pathspec in the index, if it was a closer type of match than
|
|
* the existing entry. As an optimization, matching is skipped
|
|
* altogether if seen[] already only contains non-zero entries.
|
|
*
|
|
* If seen[] has not already been written to, it may make sense
|
|
* to use find_pathspecs_matching_against_index() instead.
|
|
*/
|
|
void add_pathspec_matches_against_index(const char **pathspec,
|
|
char *seen, int specs)
|
|
{
|
|
int num_unmatched = 0, i;
|
|
|
|
/*
|
|
* Since we are walking the index as if we were walking the directory,
|
|
* we have to mark the matched pathspec as seen; otherwise we will
|
|
* mistakenly think that the user gave a pathspec that did not match
|
|
* anything.
|
|
*/
|
|
for (i = 0; i < specs; i++)
|
|
if (!seen[i])
|
|
num_unmatched++;
|
|
if (!num_unmatched)
|
|
return;
|
|
for (i = 0; i < active_nr; i++) {
|
|
struct cache_entry *ce = active_cache[i];
|
|
match_pathspec(pathspec, ce->name, ce_namelen(ce), 0, seen);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Finds which of the given pathspecs match items in the index.
|
|
*
|
|
* This is a one-shot wrapper around add_pathspec_matches_against_index()
|
|
* which allocates, populates, and returns a seen[] array indicating the
|
|
* nature of the "closest" (i.e. most specific) matches which each of the
|
|
* given pathspecs achieves against all items in the index.
|
|
*/
|
|
char *find_pathspecs_matching_against_index(const char **pathspec)
|
|
{
|
|
char *seen;
|
|
int i;
|
|
|
|
for (i = 0; pathspec[i]; i++)
|
|
; /* just counting */
|
|
seen = xcalloc(i, 1);
|
|
add_pathspec_matches_against_index(pathspec, seen, i);
|
|
return seen;
|
|
}
|
|
|
|
/*
|
|
* Check the index to see whether path refers to a submodule, or
|
|
* something inside a submodule. If the former, returns the path with
|
|
* any trailing slash stripped. If the latter, dies with an error
|
|
* message.
|
|
*/
|
|
const char *check_path_for_gitlink(const char *path)
|
|
{
|
|
int i, path_len = strlen(path);
|
|
for (i = 0; i < active_nr; i++) {
|
|
struct cache_entry *ce = active_cache[i];
|
|
if (S_ISGITLINK(ce->ce_mode)) {
|
|
int ce_len = ce_namelen(ce);
|
|
if (path_len <= ce_len || path[ce_len] != '/' ||
|
|
memcmp(ce->name, path, ce_len))
|
|
/* path does not refer to this
|
|
* submodule or anything inside it */
|
|
continue;
|
|
if (path_len == ce_len + 1) {
|
|
/* path refers to submodule;
|
|
* strip trailing slash */
|
|
return xstrndup(ce->name, ce_len);
|
|
} else {
|
|
die (_("Path '%s' is in submodule '%.*s'"),
|
|
path, ce_len, ce->name);
|
|
}
|
|
}
|
|
}
|
|
return path;
|
|
}
|
|
|
|
/*
|
|
* Dies if the given path refers to a file inside a symlinked
|
|
* directory in the index.
|
|
*/
|
|
void die_if_path_beyond_symlink(const char *path, const char *prefix)
|
|
{
|
|
if (has_symlink_leading_path(path, strlen(path))) {
|
|
int len = prefix ? strlen(prefix) : 0;
|
|
die(_("'%s' is beyond a symbolic link"), path + len);
|
|
}
|
|
}
|