This exports three helper functions from ls-files.
* pathspec_match() checks if a given path matches a set of pathspecs
and optionally records which pathspec was used. This function used
to be called "match()" but renamed to be a bit less vague.
* report_path_error() takes a set of pathspecs and the record
pathspec_match() above leaves, and gives error message. This
was split out of the main function of ls-files.
* overlay_tree_on_cache() takes a tree-ish (typically "HEAD")
and overlays it on the current in-core index. By iterating
over the resulting index, the caller can find out the paths
in either the index or the HEAD. This function used to be
called "overlay_tree()" but renamed to be a bit more
descriptive.
Signed-off-by: Junio C Hamano <gitster@xxxxxxxxx>
---
builtin-ls-files.c | 98 +++++++++++++++++++++++++++------------------------
cache.h | 6 +++
2 files changed, 58 insertions(+), 46 deletions(-)
diff --git a/builtin-ls-files.c b/builtin-ls-files.c
index e0b856f..be485bb 100644
--- a/builtin-ls-files.c
+++ b/builtin-ls-files.c
@@ -38,28 +38,28 @@ static const char *tag_modified = "";
/*
- * Match a pathspec against a filename. The first "len" characters
+ * Match a pathspec against a filename. The first "skiplen" characters
* are the common prefix
*/
-static int match(const char **spec, char *ps_matched,
- const char *filename, int len)
+int pathspec_match(const char **spec, char *ps_matched,
+ const char *filename, int skiplen)
{
const char *m;
while ((m = *spec++) != NULL) {
- int matchlen = strlen(m + len);
+ int matchlen = strlen(m + skiplen);
if (!matchlen)
goto matched;
- if (!strncmp(m + len, filename + len, matchlen)) {
- if (m[len + matchlen - 1] == '/')
+ if (!strncmp(m + skiplen, filename + skiplen, matchlen)) {
+ if (m[skiplen + matchlen - 1] == '/')
goto matched;
- switch (filename[len + matchlen]) {
+ switch (filename[skiplen + matchlen]) {
case '/': case '\0':
goto matched;
}
}
- if (!fnmatch(m + len, filename + len, 0))
+ if (!fnmatch(m + skiplen, filename + skiplen, 0))
goto matched;
if (ps_matched)
ps_matched++;
@@ -80,7 +80,7 @@ static void show_dir_entry(const char *tag, struct dir_entry *ent)
if (len >= ent->len)
die("git-ls-files: internal error - directory entry not superset of prefix");
- if (pathspec && !match(pathspec, ps_matched, ent->name, len))
+ if (pathspec && !pathspec_match(pathspec, ps_matched, ent->name, len))
return;
fputs(tag, stdout);
@@ -185,7 +185,7 @@ static void show_ce_entry(const char *tag, struct cache_entry *ce)
if (len >= ce_namelen(ce))
die("git-ls-files: internal error - cache entry not superset of prefix");
- if (pathspec && !match(pathspec, ps_matched, ce->name, len))
+ if (pathspec && !pathspec_match(pathspec, ps_matched, ce->name, len))
return;
if (tag && *tag && show_valid_bit &&
@@ -331,7 +331,7 @@ static const char *verify_pathspec(const char *prefix)
* that were given from the command line. We are not
* going to write this index out.
*/
-static void overlay_tree(const char *tree_name, const char *prefix)
+void overlay_tree_on_cache(const char *tree_name, const char *prefix)
{
struct tree *tree;
unsigned char sha1[20];
@@ -384,6 +384,42 @@ static void overlay_tree(const char *tree_name, const char *prefix)
}
}
+int report_path_error(const char *ps_matched, const char **pathspec, int prefix_offset)
+{
+ /*
+ * Make sure all pathspec matched; otherwise it is an error.
+ */
+ int num, errors = 0;
+ for (num = 0; pathspec[num]; num++) {
+ int other, found_dup;
+
+ if (ps_matched[num])
+ continue;
+ /*
+ * The caller might have fed identical pathspec
+ * twice. Do not barf on such a mistake.
+ */
+ for (found_dup = other = 0;
+ !found_dup && pathspec[other];
+ other++) {
+ if (other == num || !ps_matched[other])
+ continue;
+ if (!strcmp(pathspec[other], pathspec[num]))
+ /*
+ * Ok, we have a match already.
+ */
+ found_dup = 1;
+ }
+ if (found_dup)
+ continue;
+
+ error("pathspec '%s' did not match any file(s) known to git.",
+ pathspec[num] + prefix_offset);
+ errors++;
+ }
+ return errors;
+}
+
static const char ls_files_usage[] =
"git-ls-files [-z] [-t] [-v] (--[cached|deleted|others|stage|unmerged|killed|modified])* "
"[ --ignored ] [--exclude=<pattern>] [--exclude-from=<file>] "
@@ -563,47 +599,17 @@ int cmd_ls_files(int argc, const char **argv, const char *prefix)
*/
if (show_stage || show_unmerged)
die("ls-files --with-tree is incompatible with -s or -u");
- overlay_tree(with_tree, prefix);
+ overlay_tree_on_cache(with_tree, prefix);
}
show_files(&dir, prefix);
if (ps_matched) {
- /* We need to make sure all pathspec matched otherwise
- * it is an error.
- */
- int num, errors = 0;
- for (num = 0; pathspec[num]; num++) {
- int other, found_dup;
-
- if (ps_matched[num])
- continue;
- /*
- * The caller might have fed identical pathspec
- * twice. Do not barf on such a mistake.
- */
- for (found_dup = other = 0;
- !found_dup && pathspec[other];
- other++) {
- if (other == num || !ps_matched[other])
- continue;
- if (!strcmp(pathspec[other], pathspec[num]))
- /*
- * Ok, we have a match already.
- */
- found_dup = 1;
- }
- if (found_dup)
- continue;
-
- error("pathspec '%s' did not match any file(s) known to git.",
- pathspec[num] + prefix_offset);
- errors++;
- }
-
- if (errors)
+ int bad;
+ bad = report_path_error(ps_matched, pathspec, prefix_offset);
+ if (bad)
fprintf(stderr, "Did you forget to 'git add'?\n");
- return errors ? 1 : 0;
+ return bad ? 1 : 0;
}
return 0;
diff --git a/cache.h b/cache.h
index f0a25c7..a84f343 100644
--- a/cache.h
+++ b/cache.h
@@ -603,4 +603,10 @@ extern int diff_auto_refresh_index;
/* match-trees.c */
void shift_tree(const unsigned char *, const unsigned char *, unsigned char *, int);
+
+/* ls-files */
+int pathspec_match(const char **spec, char *matched, const char *filename, int skiplen);
+int report_path_error(const char *ps_matched, const char **pathspec, int prefix_offset);
+void overlay_tree_on_cache(const char *tree_name, const char *prefix);
+
#endif /* CACHE_H */
--
1.5.3.5.1815.g9445b
-
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