*ref = xstrdup(r);
if (!warn_ambiguous_refs)
break;
- } else if ((flag & REF_ISSYMREF) &&
- (len != 4 || strcmp(str, "HEAD")))
+ } else if ((flag & REF_ISSYMREF) && strcmp(fullref, "HEAD"))
warning("ignoring dangling symref %s.", fullref);
}
free(last_branch);
unsigned long co_time;
int co_tz, co_cnt;
+ /* a @{-N} placed anywhere except the start is an error */
+ if (str[at+2] == '-')
+ return -1;
+
/* Is it asking for N-th entry, or approxidate? */
for (i = nth = 0; 0 <= nth && i < reflog_len; i++) {
char ch = str[at+2+i];
} else if (0 <= nth)
at_time = 0;
else {
+ int errors = 0;
char *tmp = xstrndup(str + at + 2, reflog_len);
- at_time = approxidate(tmp);
+ at_time = approxidate_careful(tmp, &errors);
free(tmp);
+ if (errors)
+ return -1;
}
if (read_ref_at(real_ref, at_time, nth, sha1, NULL,
&co_time, &co_tz, &co_cnt)) {
return get_short_sha1(name, len, sha1, 0);
}
+/*
+ * This interprets names like ':/Initial revision of "git"' by searching
+ * through history and returning the first commit whose message starts
+ * the given regular expression.
+ *
+ * For future extension, ':/!' is reserved. If you want to match a message
+ * beginning with a '!', you have to repeat the exclamation mark.
+ */
+#define ONELINE_SEEN (1u<<20)
+
static int handle_one_ref(const char *path,
const unsigned char *sha1, int flag, void *cb_data)
{
if (object->type != OBJ_COMMIT)
return 0;
insert_by_date((struct commit *)object, list);
+ object->flags |= ONELINE_SEEN;
return 0;
}
-/*
- * This interprets names like ':/Initial revision of "git"' by searching
- * through history and returning the first commit whose message starts
- * with the given string.
- *
- * For future extension, ':/!' is reserved. If you want to match a message
- * beginning with a '!', you have to repeat the exclamation mark.
- */
-
-#define ONELINE_SEEN (1u<<20)
static int get_sha1_oneline(const char *prefix, unsigned char *sha1)
{
struct commit_list *list = NULL, *backup = NULL, *l;
int retval = -1;
char *temp_commit_buffer = NULL;
+ regex_t regex;
if (prefix[0] == '!') {
if (prefix[1] != '!')
die ("Invalid search pattern: %s", prefix);
prefix++;
}
+
+ if (regcomp(®ex, prefix, REG_EXTENDED))
+ die("Invalid search pattern: %s", prefix);
+
for_each_ref(handle_one_ref, &list);
for (l = list; l; l = l->next)
commit_list_insert(l->item, &backup);
}
if (!(p = strstr(p, "\n\n")))
continue;
- if (!prefixcmp(p + 2, prefix)) {
+ if (!regexec(®ex, p + 2, 0, NULL, 0)) {
hashcpy(sha1, commit->object.sha1);
retval = 0;
break;
}
}
+ regfree(®ex);
free(temp_commit_buffer);
free_commit_list(list);
for (l = backup; l; l = l->next)
return retval;
}
+int get_sha1_mb(const char *name, unsigned char *sha1)
+{
+ struct commit *one, *two;
+ struct commit_list *mbs;
+ unsigned char sha1_tmp[20];
+ const char *dots;
+ int st;
+
+ dots = strstr(name, "...");
+ if (!dots)
+ return get_sha1(name, sha1);
+ if (dots == name)
+ st = get_sha1("HEAD", sha1_tmp);
+ else {
+ struct strbuf sb;
+ strbuf_init(&sb, dots - name);
+ strbuf_add(&sb, name, dots - name);
+ st = get_sha1(sb.buf, sha1_tmp);
+ strbuf_release(&sb);
+ }
+ if (st)
+ return st;
+ one = lookup_commit_reference_gently(sha1_tmp, 0);
+ if (!one)
+ return -1;
+
+ if (get_sha1(dots[3] ? (dots + 3) : "HEAD", sha1_tmp))
+ return -1;
+ two = lookup_commit_reference_gently(sha1_tmp, 0);
+ if (!two)
+ return -1;
+ mbs = get_merge_bases(one, two, 1);
+ if (!mbs || mbs->next)
+ st = -1;
+ else {
+ st = 0;
+ hashcpy(sha1, mbs->item->object.sha1);
+ }
+ free_commit_list(mbs);
+ return st;
+}
+
/*
* This reads short-hand syntax that not only evaluates to a commit
* object name, but also can act as if the end user spelled the name
if (!len)
return len; /* syntax Ok, not enough switches */
- if (0 < len)
- return len; /* consumed from the front */
+ if (0 < len && len == namelen)
+ return len; /* consumed all */
+ else if (0 < len) {
+ /* we have extra data, which might need further processing */
+ struct strbuf tmp = STRBUF_INIT;
+ int used = buf->len;
+ int ret;
+
+ strbuf_add(buf, name + len, namelen - len);
+ ret = interpret_branch_name(buf->buf, &tmp);
+ /* that data was not interpreted, remove our cruft */
+ if (ret < 0) {
+ strbuf_setlen(buf, used);
+ return len;
+ }
+ strbuf_reset(buf);
+ strbuf_addbuf(buf, &tmp);
+ strbuf_release(&tmp);
+ /* tweak for size of {-N} versus expanded ref name */
+ return ret - used + len;
+ }
+
cp = strchr(name, '@');
if (!cp)
return -1;
*/
int get_sha1(const char *name, unsigned char *sha1)
{
- unsigned unused;
- return get_sha1_with_mode(name, sha1, &unused);
+ struct object_context unused;
+ return get_sha1_with_context(name, sha1, &unused);
+}
+
+/* Must be called only when object_name:filename doesn't exist. */
+static void diagnose_invalid_sha1_path(const char *prefix,
+ const char *filename,
+ const unsigned char *tree_sha1,
+ const char *object_name)
+{
+ struct stat st;
+ unsigned char sha1[20];
+ unsigned mode;
+
+ if (!prefix)
+ prefix = "";
+
+ if (!lstat(filename, &st))
+ die("Path '%s' exists on disk, but not in '%s'.",
+ filename, object_name);
+ if (errno == ENOENT || errno == ENOTDIR) {
+ char *fullname = xmalloc(strlen(filename)
+ + strlen(prefix) + 1);
+ strcpy(fullname, prefix);
+ strcat(fullname, filename);
+
+ if (!get_tree_entry(tree_sha1, fullname,
+ sha1, &mode)) {
+ die("Path '%s' exists, but not '%s'.\n"
+ "Did you mean '%s:%s'?",
+ fullname,
+ filename,
+ object_name,
+ fullname);
+ }
+ die("Path '%s' does not exist in '%s'",
+ filename, object_name);
+ }
}
-int get_sha1_with_mode(const char *name, unsigned char *sha1, unsigned *mode)
+/* Must be called only when :stage:filename doesn't exist. */
+static void diagnose_invalid_index_path(int stage,
+ const char *prefix,
+ const char *filename)
+{
+ struct stat st;
+ struct cache_entry *ce;
+ int pos;
+ unsigned namelen = strlen(filename);
+ unsigned fullnamelen;
+ char *fullname;
+
+ if (!prefix)
+ prefix = "";
+
+ /* Wrong stage number? */
+ pos = cache_name_pos(filename, namelen);
+ if (pos < 0)
+ pos = -pos - 1;
+ if (pos < active_nr) {
+ ce = active_cache[pos];
+ if (ce_namelen(ce) == namelen &&
+ !memcmp(ce->name, filename, namelen))
+ die("Path '%s' is in the index, but not at stage %d.\n"
+ "Did you mean ':%d:%s'?",
+ filename, stage,
+ ce_stage(ce), filename);
+ }
+
+ /* Confusion between relative and absolute filenames? */
+ fullnamelen = namelen + strlen(prefix);
+ fullname = xmalloc(fullnamelen + 1);
+ strcpy(fullname, prefix);
+ strcat(fullname, filename);
+ pos = cache_name_pos(fullname, fullnamelen);
+ if (pos < 0)
+ pos = -pos - 1;
+ if (pos < active_nr) {
+ ce = active_cache[pos];
+ if (ce_namelen(ce) == fullnamelen &&
+ !memcmp(ce->name, fullname, fullnamelen))
+ die("Path '%s' is in the index, but not '%s'.\n"
+ "Did you mean ':%d:%s'?",
+ fullname, filename,
+ ce_stage(ce), fullname);
+ }
+
+ if (!lstat(filename, &st))
+ die("Path '%s' exists on disk, but not in the index.", filename);
+ if (errno == ENOENT || errno == ENOTDIR)
+ die("Path '%s' does not exist (neither on disk nor in the index).",
+ filename);
+
+ free(fullname);
+}
+
+
+int get_sha1_with_mode_1(const char *name, unsigned char *sha1, unsigned *mode, int gently, const char *prefix)
+{
+ struct object_context oc;
+ int ret;
+ ret = get_sha1_with_context_1(name, sha1, &oc, gently, prefix);
+ *mode = oc.mode;
+ return ret;
+}
+
+int get_sha1_with_context_1(const char *name, unsigned char *sha1,
+ struct object_context *oc,
+ int gently, const char *prefix)
{
int ret, bracket_depth;
int namelen = strlen(name);
const char *cp;
- *mode = S_IFINVALID;
+ memset(oc, 0, sizeof(*oc));
+ oc->mode = S_IFINVALID;
ret = get_sha1_1(name, namelen, sha1);
if (!ret)
return ret;
cp = name + 3;
}
namelen = namelen - (cp - name);
+
+ strncpy(oc->path, cp,
+ sizeof(oc->path));
+ oc->path[sizeof(oc->path)-1] = '\0';
+
if (!active_cache)
read_cache();
pos = cache_name_pos(cp, namelen);
break;
if (ce_stage(ce) == stage) {
hashcpy(sha1, ce->sha1);
- *mode = ce->ce_mode;
return 0;
}
pos++;
}
+ if (!gently)
+ diagnose_invalid_index_path(stage, prefix, cp);
return -1;
}
for (cp = name, bracket_depth = 0; *cp; cp++) {
}
if (*cp == ':') {
unsigned char tree_sha1[20];
- if (!get_sha1_1(name, cp-name, tree_sha1))
- return get_tree_entry(tree_sha1, cp+1, sha1,
- mode);
+ char *object_name = NULL;
+ if (!gently) {
+ object_name = xmalloc(cp-name+1);
+ strncpy(object_name, name, cp-name);
+ object_name[cp-name] = '\0';
+ }
+ if (!get_sha1_1(name, cp-name, tree_sha1)) {
+ const char *filename = cp+1;
+ ret = get_tree_entry(tree_sha1, filename, sha1, &oc->mode);
+ if (!gently) {
+ diagnose_invalid_sha1_path(prefix, filename,
+ tree_sha1, object_name);
+ free(object_name);
+ }
+ hashcpy(oc->tree, tree_sha1);
+ strncpy(oc->path, filename,
+ sizeof(oc->path));
+ oc->path[sizeof(oc->path)-1] = '\0';
+
+ return ret;
+ } else {
+ if (!gently)
+ die("Invalid object name '%s'.", object_name);
+ }
}
return ret;
}