X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=builtin-for-each-ref.c;h=e46b7adc9719e147536398e8e365d6d3e65a4ba7;hb=763481787174adfcc247d6044bea330edcb2cc24;hp=07d9c572125523e2eb8f82e4cab907ee7dc94348;hpb=f23ffbe890d36e277f02d4a84c2b52de3a4e3173;p=git.git diff --git a/builtin-for-each-ref.c b/builtin-for-each-ref.c index 07d9c5721..e46b7adc9 100644 --- a/builtin-for-each-ref.c +++ b/builtin-for-each-ref.c @@ -234,6 +234,13 @@ static void grab_tag_values(struct atom_value *val, int deref, struct object *ob name++; if (!strcmp(name, "tag")) v->s = tag->tag; + else if (!strcmp(name, "type") && tag->tagged) + v->s = typename(tag->tagged->type); + else if (!strcmp(name, "object") && tag->tagged) { + char *s = xmalloc(41); + strcpy(s, sha1_to_hex(tag->tagged->sha1)); + v->s = s; + } } } @@ -313,9 +320,7 @@ static const char *find_wholine(const char *who, int wholen, const char *buf, un static const char *copy_line(const char *buf) { - const char *eol = strchr(buf, '\n'); - if (!eol) - return ""; + const char *eol = strchrnul(buf, '\n'); return xmemdupz(buf, eol - buf); } @@ -452,8 +457,10 @@ static void find_subpos(const char *buf, unsigned long sz, const char **sub, con return; *sub = buf; /* first non-empty line */ buf = strchr(buf, '\n'); - if (!buf) + if (!buf) { + *body = ""; return; /* no body */ + } while (*buf == '\n') buf++; /* skip blank between subject and body */ *body = buf; @@ -536,6 +543,109 @@ static void grab_values(struct atom_value *val, int deref, struct object *obj, v } } +/* + * generate a format suitable for scanf from a ref_rev_parse_rules + * rule, that is replace the "%.*s" spec with a "%s" spec + */ +static void gen_scanf_fmt(char *scanf_fmt, const char *rule) +{ + char *spec; + + spec = strstr(rule, "%.*s"); + if (!spec || strstr(spec + 4, "%.*s")) + die("invalid rule in ref_rev_parse_rules: %s", rule); + + /* copy all until spec */ + strncpy(scanf_fmt, rule, spec - rule); + scanf_fmt[spec - rule] = '\0'; + /* copy new spec */ + strcat(scanf_fmt, "%s"); + /* copy remaining rule */ + strcat(scanf_fmt, spec + 4); + + return; +} + +/* + * Shorten the refname to an non-ambiguous form + */ +static char *get_short_ref(struct refinfo *ref) +{ + int i; + static char **scanf_fmts; + static int nr_rules; + char *short_name; + + /* pre generate scanf formats from ref_rev_parse_rules[] */ + if (!nr_rules) { + size_t total_len = 0; + + /* the rule list is NULL terminated, count them first */ + for (; ref_rev_parse_rules[nr_rules]; nr_rules++) + /* no +1 because strlen("%s") < strlen("%.*s") */ + total_len += strlen(ref_rev_parse_rules[nr_rules]); + + scanf_fmts = xmalloc(nr_rules * sizeof(char *) + total_len); + + total_len = 0; + for (i = 0; i < nr_rules; i++) { + scanf_fmts[i] = (char *)&scanf_fmts[nr_rules] + + total_len; + gen_scanf_fmt(scanf_fmts[i], ref_rev_parse_rules[i]); + total_len += strlen(ref_rev_parse_rules[i]); + } + } + + /* bail out if there are no rules */ + if (!nr_rules) + return ref->refname; + + /* buffer for scanf result, at most ref->refname must fit */ + short_name = xstrdup(ref->refname); + + /* skip first rule, it will always match */ + for (i = nr_rules - 1; i > 0 ; --i) { + int j; + int short_name_len; + + if (1 != sscanf(ref->refname, scanf_fmts[i], short_name)) + continue; + + short_name_len = strlen(short_name); + + /* + * check if the short name resolves to a valid ref, + * but use only rules prior to the matched one + */ + for (j = 0; j < i; j++) { + const char *rule = ref_rev_parse_rules[j]; + unsigned char short_objectname[20]; + char refname[PATH_MAX]; + + /* + * the short name is ambiguous, if it resolves + * (with this previous rule) to a valid ref + * read_ref() returns 0 on success + */ + mksnpath(refname, sizeof(refname), + rule, short_name_len, short_name); + if (!read_ref(refname, short_objectname)) + break; + } + + /* + * short name is non-ambiguous if all previous rules + * haven't resolved to a valid ref + */ + if (j == i) + return short_name; + } + + free(short_name); + return ref->refname; +} + + /* * Parse the object referred by ref, and grab needed value. */ @@ -561,13 +671,33 @@ static void populate_value(struct refinfo *ref) for (i = 0; i < used_atom_cnt; i++) { const char *name = used_atom[i]; struct atom_value *v = &ref->value[i]; - if (!strcmp(name, "refname")) - v->s = ref->refname; - else if (!strcmp(name, "*refname")) { - int len = strlen(ref->refname); - char *s = xmalloc(len + 4); - sprintf(s, "%s^{}", ref->refname); - v->s = s; + int deref = 0; + if (*name == '*') { + deref = 1; + name++; + } + if (!prefixcmp(name, "refname")) { + const char *formatp = strchr(name, ':'); + const char *refname = ref->refname; + + /* look for "short" refname format */ + if (formatp) { + formatp++; + if (!strcmp(formatp, "short")) + refname = get_short_ref(ref); + else + die("unknown refname format %s", + formatp); + } + + if (!deref) + v->s = refname; + else { + int len = strlen(refname); + char *s = xmalloc(len + 4); + sprintf(s, "%s^{}", refname); + v->s = s; + } } } @@ -643,7 +773,8 @@ static int grab_single_ref(const char *refname, const unsigned char *sha1, int f if ((plen <= namelen) && !strncmp(refname, p, plen) && (refname[plen] == '\0' || - refname[plen] == '/')) + refname[plen] == '/' || + p[plen-1] == '/')) break; if (!fnmatch(p, refname, FNM_PATHNAME)) break; @@ -802,7 +933,7 @@ static struct ref_sort *default_sort(void) return sort; } -int opt_parse_sort(const struct option *opt, const char *arg, int unset) +static int opt_parse_sort(const struct option *opt, const char *arg, int unset) { struct ref_sort **sort_tail = opt->value; struct ref_sort *s; @@ -824,7 +955,7 @@ int opt_parse_sort(const struct option *opt, const char *arg, int unset) } static char const * const for_each_ref_usage[] = { - "git-for-each-ref [options] []", + "git for-each-ref [options] []", NULL };