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-rw-r--r--diff-no-index.c95
1 files changed, 79 insertions, 16 deletions
diff --git a/diff-no-index.c b/diff-no-index.c
index 9739b2b268..88ae4cee56 100644
--- a/diff-no-index.c
+++ b/diff-no-index.c
@@ -15,20 +15,57 @@
#include "gettext.h"
#include "revision.h"
#include "parse-options.h"
+#include "pathspec.h"
#include "string-list.h"
#include "dir.h"
-static int read_directory_contents(const char *path, struct string_list *list)
+static int read_directory_contents(const char *path, struct string_list *list,
+ const struct pathspec *pathspec,
+ int skip)
{
+ struct strbuf match = STRBUF_INIT;
+ int len;
DIR *dir;
struct dirent *e;
if (!(dir = opendir(path)))
return error("Could not open directory %s", path);
- while ((e = readdir_skip_dot_and_dotdot(dir)))
+ if (pathspec) {
+ strbuf_addstr(&match, path);
+ strbuf_complete(&match, '/');
+ strbuf_remove(&match, 0, skip);
+
+ len = match.len;
+ }
+
+ while ((e = readdir_skip_dot_and_dotdot(dir))) {
+ if (pathspec) {
+ int is_dir = 0;
+
+ strbuf_setlen(&match, len);
+ strbuf_addstr(&match, e->d_name);
+ if (NOT_CONSTANT(DTYPE(e)) != DT_UNKNOWN) {
+ is_dir = (DTYPE(e) == DT_DIR);
+ } else {
+ struct strbuf pathbuf = STRBUF_INIT;
+
+ strbuf_addstr(&pathbuf, path);
+ strbuf_complete(&pathbuf, '/');
+ is_dir = get_dtype(e, &pathbuf, 0) == DT_DIR;
+ strbuf_release(&pathbuf);
+ }
+
+ if (!match_leading_pathspec(NULL, pathspec,
+ match.buf, match.len,
+ 0, NULL, is_dir))
+ continue;
+ }
+
string_list_insert(list, e->d_name);
+ }
+ strbuf_release(&match);
closedir(dir);
return 0;
}
@@ -131,7 +168,8 @@ static struct diff_filespec *noindex_filespec(const struct git_hash_algo *algop,
}
static int queue_diff(struct diff_options *o, const struct git_hash_algo *algop,
- const char *name1, const char *name2, int recursing)
+ const char *name1, const char *name2, int recursing,
+ const struct pathspec *ps, int skip1, int skip2)
{
int mode1 = 0, mode2 = 0;
enum special special1 = SPECIAL_NONE, special2 = SPECIAL_NONE;
@@ -171,9 +209,9 @@ static int queue_diff(struct diff_options *o, const struct git_hash_algo *algop,
int i1, i2, ret = 0;
size_t len1 = 0, len2 = 0;
- if (name1 && read_directory_contents(name1, &p1))
+ if (name1 && read_directory_contents(name1, &p1, ps, skip1))
return -1;
- if (name2 && read_directory_contents(name2, &p2)) {
+ if (name2 && read_directory_contents(name2, &p2, ps, skip2)) {
string_list_clear(&p1, 0);
return -1;
}
@@ -218,7 +256,7 @@ static int queue_diff(struct diff_options *o, const struct git_hash_algo *algop,
n2 = buffer2.buf;
}
- ret = queue_diff(o, algop, n1, n2, 1);
+ ret = queue_diff(o, algop, n1, n2, 1, ps, skip1, skip2);
}
string_list_clear(&p1, 0);
string_list_clear(&p2, 0);
@@ -258,8 +296,10 @@ static void append_basename(struct strbuf *path, const char *dir, const char *fi
* DWIM "diff D F" into "diff D/F F" and "diff F D" into "diff F D/F"
* Note that we append the basename of F to D/, so "diff a/b/file D"
* becomes "diff a/b/file D/file", not "diff a/b/file D/a/b/file".
+ *
+ * Return 1 if both paths are directories, 0 otherwise.
*/
-static void fixup_paths(const char **path, struct strbuf *replacement)
+static int fixup_paths(const char **path, struct strbuf *replacement)
{
struct stat st;
unsigned int isdir0 = 0, isdir1 = 0;
@@ -282,26 +322,31 @@ static void fixup_paths(const char **path, struct strbuf *replacement)
if ((isdir0 && ispipe1) || (ispipe0 && isdir1))
die(_("cannot compare a named pipe to a directory"));
- if (isdir0 == isdir1)
- return;
+ /* if both paths are directories, we will enable pathspecs */
+ if (isdir0 && isdir1)
+ return 1;
+
if (isdir0) {
append_basename(replacement, path[0], path[1]);
path[0] = replacement->buf;
- } else {
+ } else if (isdir1) {
append_basename(replacement, path[1], path[0]);
path[1] = replacement->buf;
}
+
+ return 0;
}
static const char * const diff_no_index_usage[] = {
- N_("git diff --no-index [<options>] <path> <path>"),
+ N_("git diff --no-index [<options>] <path> <path> [<pathspec>...]"),
NULL
};
int diff_no_index(struct rev_info *revs, const struct git_hash_algo *algop,
int implicit_no_index, int argc, const char **argv)
{
- int i, no_index;
+ struct pathspec pathspec, *ps = NULL;
+ int i, no_index, skip1 = 0, skip2 = 0;
int ret = 1;
const char *paths[2];
char *to_free[ARRAY_SIZE(paths)] = { 0 };
@@ -317,13 +362,12 @@ int diff_no_index(struct rev_info *revs, const struct git_hash_algo *algop,
options = add_diff_options(no_index_options, &revs->diffopt);
argc = parse_options(argc, argv, revs->prefix, options,
diff_no_index_usage, 0);
- if (argc != 2) {
+ if (argc < 2) {
if (implicit_no_index)
warning(_("Not a git repository. Use --no-index to "
"compare two paths outside a working tree"));
usage_with_options(diff_no_index_usage, options);
}
- FREE_AND_NULL(options);
for (i = 0; i < 2; i++) {
const char *p = argv[i];
if (!strcmp(p, "-"))
@@ -337,7 +381,23 @@ int diff_no_index(struct rev_info *revs, const struct git_hash_algo *algop,
paths[i] = p;
}
- fixup_paths(paths, &replacement);
+ if (fixup_paths(paths, &replacement)) {
+ parse_pathspec(&pathspec, PATHSPEC_FROMTOP | PATHSPEC_ATTR,
+ PATHSPEC_PREFER_FULL | PATHSPEC_NO_REPOSITORY,
+ NULL, &argv[2]);
+ if (pathspec.nr)
+ ps = &pathspec;
+
+ skip1 = strlen(paths[0]);
+ skip1 += paths[0][skip1] == '/' ? 0 : 1;
+ skip2 = strlen(paths[1]);
+ skip2 += paths[1][skip2] == '/' ? 0 : 1;
+ } else if (argc > 2) {
+ warning(_("Limiting comparison with pathspecs is only "
+ "supported if both paths are directories."));
+ usage_with_options(diff_no_index_usage, options);
+ }
+ FREE_AND_NULL(options);
revs->diffopt.skip_stat_unmatch = 1;
if (!revs->diffopt.output_format)
@@ -354,7 +414,8 @@ int diff_no_index(struct rev_info *revs, const struct git_hash_algo *algop,
setup_diff_pager(&revs->diffopt);
revs->diffopt.flags.exit_with_status = 1;
- if (queue_diff(&revs->diffopt, algop, paths[0], paths[1], 0))
+ if (queue_diff(&revs->diffopt, algop, paths[0], paths[1], 0, ps,
+ skip1, skip2))
goto out;
diff_set_mnemonic_prefix(&revs->diffopt, "1/", "2/");
diffcore_std(&revs->diffopt);
@@ -370,5 +431,7 @@ out:
for (i = 0; i < ARRAY_SIZE(to_free); i++)
free(to_free[i]);
strbuf_release(&replacement);
+ if (ps)
+ clear_pathspec(ps);
return ret;
}
generated by cgit v1.2.3 (git 2.46.0) at 2025-11-23 13:07:00 +0000