diff options
Diffstat (limited to 'builtin-show-ref.c')
| -rw-r--r-- | builtin-show-ref.c | 60 |
1 files changed, 59 insertions, 1 deletions
diff --git a/builtin-show-ref.c b/builtin-show-ref.c index 073979855b..b36f15eeaa 100644 --- a/builtin-show-ref.c +++ b/builtin-show-ref.c @@ -2,8 +2,9 @@ #include "refs.h" #include "object.h" #include "tag.h" +#include "path-list.h" -static const char show_ref_usage[] = "git show-ref [-q|--quiet] [--verify] [-h|--head] [-d|--dereference] [-s|--hash[=<length>]] [--abbrev[=<length>]] [--tags] [--heads] [--] [pattern*]"; +static const char show_ref_usage[] = "git show-ref [-q|--quiet] [--verify] [-h|--head] [-d|--dereference] [-s|--hash[=<length>]] [--abbrev[=<length>]] [--tags] [--heads] [--] [pattern*] | --filter-invalid < ref-list"; static int deref_tags = 0, show_head = 0, tags_only = 0, heads_only = 0, found_match = 0, verify = 0, quiet = 0, hash_only = 0, abbrev = 0; @@ -86,6 +87,59 @@ match: return 0; } +static int add_existing(const char *refname, const unsigned char *sha1, int flag, void *cbdata) +{ + struct path_list *list = (struct path_list *)cbdata; + path_list_insert(refname, list); + return 0; +} + +/* + * read "^(?:<anything>\s)?<refname>(?:\^\{\})?$" from the standard input, + * and + * (1) strip "^{}" at the end of line if any; + * (2) ignore if match is provided and does not head-match refname; + * (3) warn if refname is not a well-formed refname and skip; + * (4) ignore if refname is a ref that exists in the local repository; + * (5) otherwise output the line. + */ +static int exclude_existing(const char *match) +{ + static struct path_list existing_refs = { NULL, 0, 0, 0 }; + char buf[1024]; + int matchlen = match ? strlen(match) : 0; + + for_each_ref(add_existing, &existing_refs); + while (fgets(buf, sizeof(buf), stdin)) { + int len = strlen(buf); + char *ref; + if (len > 0 && buf[len - 1] == '\n') + buf[--len] = '\0'; + if (!strcmp(buf + len - 3, "^{}")) { + len -= 3; + buf[len] = '\0'; + } + for (ref = buf + len; buf < ref; ref--) + if (isspace(ref[-1])) + break; + if (match) { + int reflen = buf + len - ref; + if (reflen < matchlen) + continue; + if (strncmp(ref, match, matchlen)) + continue; + } + if (check_ref_format(ref)) { + fprintf(stderr, "warning: ref '%s' ignored\n", ref); + continue; + } + if (!path_list_has_path(&existing_refs, ref)) { + printf("%s\n", buf); + } + } + return 0; +} + int cmd_show_ref(int argc, const char **argv, const char *prefix) { int i; @@ -153,6 +207,10 @@ int cmd_show_ref(int argc, const char **argv, const char *prefix) heads_only = 1; continue; } + if (!strcmp(arg, "--exclude-existing")) + return exclude_existing(NULL); + if (!strncmp(arg, "--exclude-existing=", 19)) + return exclude_existing(arg + 19); usage(show_ref_usage); } if (show_head) |