Merge branch 'js/regexec-buf' into maint
[gitweb.git] / builtin / merge.c
index d82f6c19a350e72edd4dc03e30ff65d8c98d8ecb..0ae099f746680e5c2fcc55dff56624da1619f2f1 100644 (file)
@@ -30,6 +30,7 @@
 #include "fmt-merge-msg.h"
 #include "gpg-interface.h"
 #include "sequencer.h"
+#include "string-list.h"
 
 #define DEFAULT_TWOHEAD (1<<0)
 #define DEFAULT_OCTOPUS (1<<1)
@@ -336,15 +337,9 @@ static void squash_message(struct commit *commit, struct commit_list *remotehead
        struct rev_info rev;
        struct strbuf out = STRBUF_INIT;
        struct commit_list *j;
-       const char *filename;
-       int fd;
        struct pretty_print_context ctx = {0};
 
        printf(_("Squash commit -- not updating HEAD\n"));
-       filename = git_path_squash_msg();
-       fd = open(filename, O_WRONLY | O_CREAT, 0666);
-       if (fd < 0)
-               die_errno(_("Could not write to '%s'"), filename);
 
        init_revisions(&rev, NULL);
        rev.ignore_merges = 1;
@@ -371,10 +366,7 @@ static void squash_message(struct commit *commit, struct commit_list *remotehead
                        oid_to_hex(&commit->object.oid));
                pretty_print_commit(&ctx, commit, &out);
        }
-       if (write_in_full(fd, out.buf, out.len) != out.len)
-               die_errno(_("Writing SQUASH_MSG"));
-       if (close(fd))
-               die_errno(_("Finishing SQUASH_MSG"));
+       write_file_buf(git_path_squash_msg(), out.buf, out.len);
        strbuf_release(&out);
 }
 
@@ -501,7 +493,7 @@ static void merge_name(const char *remote, struct strbuf *msg)
                if (ref_exists(truname.buf)) {
                        strbuf_addf(msg,
                                    "%s\t\tbranch '%s'%s of .\n",
-                                   sha1_to_hex(remote_head->object.oid.hash),
+                                   oid_to_hex(&remote_head->object.oid),
                                    truname.buf + 11,
                                    (early ? " (early part)" : ""));
                        strbuf_release(&truname);
@@ -515,7 +507,7 @@ static void merge_name(const char *remote, struct strbuf *msg)
                desc = merge_remote_util(remote_head);
                if (desc && desc->obj && desc->obj->type == OBJ_TAG) {
                        strbuf_addf(msg, "%s\t\t%s '%s'\n",
-                                   sha1_to_hex(desc->obj->oid.hash),
+                                   oid_to_hex(&desc->obj->oid),
                                    typename(desc->obj->type),
                                    remote);
                        goto cleanup;
@@ -523,7 +515,7 @@ static void merge_name(const char *remote, struct strbuf *msg)
        }
 
        strbuf_addf(msg, "%s\t\tcommit '%s'\n",
-               sha1_to_hex(remote_head->object.oid.hash), remote);
+               oid_to_hex(&remote_head->object.oid), remote);
 cleanup:
        strbuf_release(&buf);
        strbuf_release(&bname);
@@ -682,6 +674,8 @@ static int try_merge_strategy(const char *strategy, struct commit_list *common,
                hold_locked_index(&lock, 1);
                clean = merge_recursive(&o, head,
                                remoteheads->item, reversed, &result);
+               if (clean < 0)
+                       exit(128);
                if (active_cache_changed &&
                    write_locked_index(&the_index, &lock, COMMIT_LOCK))
                        die (_("unable to write %s"), get_index_file());
@@ -712,42 +706,17 @@ static int count_unmerged_entries(void)
        return ret;
 }
 
-static void split_merge_strategies(const char *string, struct strategy **list,
-                                  int *nr, int *alloc)
-{
-       char *p, *q, *buf;
-
-       if (!string)
-               return;
-
-       buf = xstrdup(string);
-       q = buf;
-       for (;;) {
-               p = strchr(q, ' ');
-               if (!p) {
-                       ALLOC_GROW(*list, *nr + 1, *alloc);
-                       (*list)[(*nr)++].name = xstrdup(q);
-                       free(buf);
-                       return;
-               } else {
-                       *p = '\0';
-                       ALLOC_GROW(*list, *nr + 1, *alloc);
-                       (*list)[(*nr)++].name = xstrdup(q);
-                       q = ++p;
-               }
-       }
-}
-
 static void add_strategies(const char *string, unsigned attr)
 {
-       struct strategy *list = NULL;
-       int list_alloc = 0, list_nr = 0, i;
-
-       memset(&list, 0, sizeof(list));
-       split_merge_strategies(string, &list, &list_nr, &list_alloc);
-       if (list) {
-               for (i = 0; i < list_nr; i++)
-                       append_strategy(get_strategy(list[i].name));
+       int i;
+
+       if (string) {
+               struct string_list list = STRING_LIST_INIT_DUP;
+               struct string_list_item *item;
+               string_list_split(&list, string, ' ', -1);
+               for_each_string_list_item(item, &list)
+                       append_strategy(get_strategy(item->string));
+               string_list_clear(&list, 0);
                return;
        }
        for (i = 0; i < ARRAY_SIZE(all_strategy); i++)
@@ -756,18 +725,6 @@ static void add_strategies(const char *string, unsigned attr)
 
 }
 
-static void write_merge_msg(struct strbuf *msg)
-{
-       const char *filename = git_path_merge_msg();
-       int fd = open(filename, O_WRONLY | O_CREAT, 0666);
-       if (fd < 0)
-               die_errno(_("Could not open '%s' for writing"),
-                         filename);
-       if (write_in_full(fd, msg->buf, msg->len) != msg->len)
-               die_errno(_("Could not write to '%s'"), filename);
-       close(fd);
-}
-
 static void read_merge_msg(struct strbuf *msg)
 {
        const char *filename = git_path_merge_msg();
@@ -801,7 +758,7 @@ static void prepare_to_commit(struct commit_list *remoteheads)
        strbuf_addch(&msg, '\n');
        if (0 < option_edit)
                strbuf_commented_addf(&msg, _(merge_editor_comment), comment_line_char);
-       write_merge_msg(&msg);
+       write_file_buf(git_path_merge_msg(), msg.buf, msg.len);
        if (run_commit_hook(0 < option_edit, get_index_file(), "prepare-commit-msg",
                            git_path_merge_msg(), "merge", NULL))
                abort_commit(remoteheads, NULL);
@@ -964,8 +921,6 @@ static int setup_with_upstream(const char ***argv)
 
 static void write_merge_state(struct commit_list *remoteheads)
 {
-       const char *filename;
-       int fd;
        struct commit_list *j;
        struct strbuf buf = STRBUF_INIT;
 
@@ -979,26 +934,14 @@ static void write_merge_state(struct commit_list *remoteheads)
                }
                strbuf_addf(&buf, "%s\n", oid_to_hex(oid));
        }
-       filename = git_path_merge_head();
-       fd = open(filename, O_WRONLY | O_CREAT, 0666);
-       if (fd < 0)
-               die_errno(_("Could not open '%s' for writing"), filename);
-       if (write_in_full(fd, buf.buf, buf.len) != buf.len)
-               die_errno(_("Could not write to '%s'"), filename);
-       close(fd);
+       write_file_buf(git_path_merge_head(), buf.buf, buf.len);
        strbuf_addch(&merge_msg, '\n');
-       write_merge_msg(&merge_msg);
+       write_file_buf(git_path_merge_msg(), merge_msg.buf, merge_msg.len);
 
-       filename = git_path_merge_mode();
-       fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0666);
-       if (fd < 0)
-               die_errno(_("Could not open '%s' for writing"), filename);
        strbuf_reset(&buf);
        if (fast_forward == FF_NO)
                strbuf_addf(&buf, "no-ff");
-       if (write_in_full(fd, buf.buf, buf.len) != buf.len)
-               die_errno(_("Could not write to '%s'"), filename);
-       close(fd);
+       write_file_buf(git_path_merge_mode(), buf.buf, buf.len);
 }
 
 static int default_edit_option(void)
@@ -1366,7 +1309,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
        for (p = remoteheads; p; p = p->next) {
                struct commit *commit = p->item;
                strbuf_addf(&buf, "GITHEAD_%s",
-                           sha1_to_hex(commit->object.oid.hash));
+                           oid_to_hex(&commit->object.oid));
                setenv(buf.buf, merge_remote_util(commit)->name, 1);
                strbuf_reset(&buf);
                if (fast_forward != FF_ONLY &&
@@ -1425,7 +1368,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
                goto done;
        } else if (fast_forward != FF_NO && !remoteheads->next &&
                        !common->next &&
-                       !hashcmp(common->item->object.oid.hash, head_commit->object.oid.hash)) {
+                       !oidcmp(&common->item->object.oid, &head_commit->object.oid)) {
                /* Again the most common case of merging one remote. */
                struct strbuf msg = STRBUF_INIT;
                struct commit *commit;
@@ -1499,8 +1442,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
                         * HEAD^^" would be missed.
                         */
                        common_one = get_merge_bases(head_commit, j->item);
-                       if (hashcmp(common_one->item->object.oid.hash,
-                               j->item->object.oid.hash)) {
+                       if (oidcmp(&common_one->item->object.oid, &j->item->object.oid)) {
                                up_to_date = 0;
                                break;
                        }
@@ -1530,7 +1472,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
             * Stash away the local changes so that we can try more than one.
             */
            save_state(stash))
-               hashcpy(stash, null_sha1);
+               hashclr(stash);
 
        for (i = 0; i < use_strategies_nr; i++) {
                int ret;