merge-recursive: Restructure showing how to chain more process_* functions

diff --git a/sha1_name.c b/sha1_name.c
index bf924178380c42a50b2fd7a02ff869dcc3ddff6a..7b7e61719fa63e41917b41240061c68e3cbabf01 100644 (file)
--- a/sha1_name.c
+++ b/sha1_name.c
@@ -342,7 +342,7 @@ static int get_sha1_1(const char *name, int len, unsigned char *sha1);
 
 static int get_sha1_basic(const char *str, int len, unsigned char *sha1)
 {
-       static const char *warning = "warning: refname '%.*s' is ambiguous.\n";
+       static const char *warn_msg = "refname '%.*s' is ambiguous.";
        char *real_ref = NULL;
        int refs_found = 0;
        int at, reflog_len;
@@ -390,7 +390,7 @@ static int get_sha1_basic(const char *str, int len, unsigned char *sha1)
                return -1;
 
        if (warn_ambiguous_refs && refs_found > 1)
-               fprintf(stderr, warning, len, str);
+               warning(warn_msg, len, str);
 
        if (reflog_len) {
                int nth, i;
@@ -426,14 +426,14 @@ static int get_sha1_basic(const char *str, int len, unsigned char *sha1)
                if (read_ref_at(real_ref, at_time, nth, sha1, NULL,
                                &co_time, &co_tz, &co_cnt)) {
                        if (at_time)
-                               fprintf(stderr,
-                                       "warning: Log for '%.*s' only goes "
-                                       "back to %s.\n", len, str,
+                               warning("Log for '%.*s' only goes "
+                                       "back to %s.", len, str,
                                        show_date(co_time, co_tz, DATE_RFC2822));
-                       else
-                               fprintf(stderr,
-                                       "warning: Log for '%.*s' only has "
-                                       "%d entries.\n", len, str, co_cnt);
+                       else {
+                               free(real_ref);
+                               die("Log for '%.*s' only has %d entries.",
+                                   len, str, co_cnt);
+                       }
                }
        }
 
@@ -659,6 +659,16 @@ static int get_sha1_1(const char *name, int len, unsigned char *sha1)
        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)
 {
@@ -674,30 +684,26 @@ static int handle_one_ref(const char *path,
        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(&regex, 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);
@@ -721,12 +727,13 @@ static int get_sha1_oneline(const char *prefix, unsigned char *sha1)
                }
                if (!(p = strstr(p, "\n\n")))
                        continue;
-               if (!prefixcmp(p + 2, prefix)) {
+               if (!regexec(&regex, p + 2, 0, NULL, 0)) {
                        hashcpy(sha1, commit->object.sha1);
                        retval = 0;
                        break;
                }
        }
+       regfree(&regex);
        free(temp_commit_buffer);
        free_commit_list(list);
        for (l = backup; l; l = l->next)
@@ -933,8 +940,8 @@ int interpret_branch_name(const char *name, struct strbuf *buf)
  */
 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. */
@@ -1031,12 +1038,24 @@ static void diagnose_invalid_index_path(int stage,
 
 
 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;
@@ -1059,6 +1078,11 @@ int get_sha1_with_mode_1(const char *name, unsigned char *sha1, unsigned *mode,
                        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);
@@ -1071,7 +1095,6 @@ int get_sha1_with_mode_1(const char *name, unsigned char *sha1, unsigned *mode,
                                break;
                        if (ce_stage(ce) == stage) {
                                hashcpy(sha1, ce->sha1);
-                               *mode = ce->ce_mode;
                                return 0;
                        }
                        pos++;
@@ -1098,12 +1121,17 @@ int get_sha1_with_mode_1(const char *name, unsigned char *sha1, unsigned *mode,
                }
                if (!get_sha1_1(name, cp-name, tree_sha1)) {
                        const char *filename = cp+1;
-                       ret = get_tree_entry(tree_sha1, filename, sha1, mode);
+                       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)