From: Junio C Hamano Date: Sun, 18 Nov 2007 09:13:32 +0000 (-0800) Subject: Export three helper functions from ls-files X-Git-Tag: v1.5.4-rc0~78^2~14 X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=ee425e4643aa2d7be72cb4586d7554cecce44d6e;p=git.git Export three helper functions from ls-files 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 --- diff --git a/builtin-ls-files.c b/builtin-ls-files.c index 7f6070983..0f0ab2da1 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=] [--exclude-from=] " @@ -568,47 +604,17 @@ 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 33ebccf48..26eec229e 100644 --- a/cache.h +++ b/cache.h @@ -610,4 +610,10 @@ 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 */