NULL
};
-static int show_diffstat = 1, option_log, squash;
+static int show_diffstat = 1, shortlog_len, squash;
static int option_commit = 1, allow_fast_forward = 1;
static int fast_forward_only;
static int allow_trivial = 1, have_message;
static const char **xopts;
static size_t xopts_nr, xopts_alloc;
static const char *branch;
+static int option_renormalize;
static int verbosity;
static int allow_rerere_auto;
+static int abort_current_merge;
static struct strategy all_strategy[] = {
{ "recursive", DEFAULT_TWOHEAD | NO_TRIVIAL },
ret = xcalloc(1, sizeof(struct strategy));
ret->name = xstrdup(name);
+ ret->attr = NO_TRIVIAL;
return ret;
}
OPT_BOOLEAN(0, "stat", &show_diffstat,
"show a diffstat at the end of the merge"),
OPT_BOOLEAN(0, "summary", &show_diffstat, "(synonym to --stat)"),
- OPT_BOOLEAN(0, "log", &option_log,
- "add list of one-line log to merge commit message"),
+ { OPTION_INTEGER, 0, "log", &shortlog_len, "n",
+ "add (at most <n>) entries from shortlog to merge commit message",
+ PARSE_OPT_OPTARG, NULL, DEFAULT_MERGE_LOG_LEN },
OPT_BOOLEAN(0, "squash", &squash,
"create a single commit instead of doing a merge"),
OPT_BOOLEAN(0, "commit", &option_commit,
OPT_CALLBACK('X', "strategy-option", &xopts, "option=value",
"option for selected merge strategy", option_parse_x),
OPT_CALLBACK('m', "message", &merge_msg, "message",
- "message to be used for the merge commit (if any)",
+ "merge commit message (for a non-fast-forward merge)",
option_parse_message),
OPT__VERBOSITY(&verbosity),
+ OPT_BOOLEAN(0, "abort", &abort_current_merge,
+ "abort the current in-progress merge"),
OPT_END()
};
die("not a valid object: %s", buffer.buf);
}
+static void read_empty(unsigned const char *sha1, int verbose)
+{
+ int i = 0;
+ const char *args[7];
+
+ args[i++] = "read-tree";
+ if (verbose)
+ args[i++] = "-v";
+ args[i++] = "-m";
+ args[i++] = "-u";
+ args[i++] = EMPTY_TREE_SHA1_HEX;
+ args[i++] = sha1_to_hex(sha1);
+ args[i] = NULL;
+
+ if (run_command_v_opt(args, RUN_GIT_CMD))
+ die("read-tree failed");
+}
+
static void reset_hard(unsigned const char *sha1, int verbose)
{
int i = 0;
goto cleanup;
}
if (!prefixcmp(found_ref, "refs/remotes/")) {
- strbuf_addf(msg, "%s\t\tremote branch '%s' of .\n",
+ strbuf_addf(msg, "%s\t\tremote-tracking branch '%s' of .\n",
sha1_to_hex(branch_head), remote);
goto cleanup;
}
strbuf_addstr(&truname, "refs/heads/");
strbuf_addstr(&truname, remote);
strbuf_setlen(&truname, truname.len - len);
- if (resolve_ref(truname.buf, buf_sha, 0, NULL)) {
+ if (resolve_ref(truname.buf, buf_sha, 1, NULL)) {
strbuf_addf(msg,
"%s\t\tbranch '%s'%s of .\n",
sha1_to_hex(remote_head->sha1),
buf = xstrdup(v);
argc = split_cmdline(buf, &argv);
if (argc < 0)
- die("Bad branch.%s.mergeoptions string", branch);
+ die("Bad branch.%s.mergeoptions string: %s", branch,
+ split_cmdline_strerror(argc));
argv = xrealloc(argv, sizeof(*argv) * (argc + 2));
memmove(argv + 1, argv, sizeof(*argv) * (argc + 1));
argc++;
return git_config_string(&pull_twohead, k, v);
else if (!strcmp(k, "pull.octopus"))
return git_config_string(&pull_octopus, k, v);
- else if (!strcmp(k, "merge.log") || !strcmp(k, "merge.summary"))
- option_log = git_config_bool(k, v);
+ else if (!strcmp(k, "merge.renormalize"))
+ option_renormalize = git_config_bool(k, v);
+ else if (!strcmp(k, "merge.log") || !strcmp(k, "merge.summary")) {
+ int is_bool;
+ shortlog_len = git_config_bool_or_int(k, v, &is_bool);
+ if (!is_bool && shortlog_len < 0)
+ return error("%s: negative length %s", k, v);
+ if (is_bool && shortlog_len)
+ shortlog_len = DEFAULT_MERGE_LOG_LEN;
+ return 0;
+ }
return git_diff_ui_config(k, v, cb);
}
die("git write-tree failed to write a tree");
}
-int try_merge_command(const char *strategy, struct commit_list *common,
+int try_merge_command(const char *strategy, size_t xopts_nr,
+ const char **xopts, struct commit_list *common,
const char *head_arg, struct commit_list *remotes)
{
const char **args;
if (!strcmp(strategy, "subtree"))
o.subtree_shift = "";
- for (x = 0; x < xopts_nr; x++) {
- if (!strcmp(xopts[x], "ours"))
- o.recursive_variant = MERGE_RECURSIVE_OURS;
- else if (!strcmp(xopts[x], "theirs"))
- o.recursive_variant = MERGE_RECURSIVE_THEIRS;
- else if (!strcmp(xopts[x], "subtree"))
- o.subtree_shift = "";
- else if (!prefixcmp(xopts[x], "subtree="))
- o.subtree_shift = xopts[x]+8;
- else
+ o.renormalize = option_renormalize;
+
+ for (x = 0; x < xopts_nr; x++)
+ if (parse_merge_opt(&o, xopts[x]))
die("Unknown option for merge-recursive: -X%s", xopts[x]);
- }
o.branch1 = head_arg;
o.branch2 = remoteheads->item->util;
rollback_lock_file(lock);
return clean ? 0 : 1;
} else {
- return try_merge_command(strategy, common, head_arg, remoteheads);
+ return try_merge_command(strategy, xopts_nr, xopts,
+ common, head_arg, remoteheads);
}
}
opts.verbose_update = 1;
opts.merge = 1;
opts.fn = twoway_merge;
- opts.msgs = get_porcelain_error_msgs();
+ setup_unpack_trees_porcelain(&opts, "merge");
trees[nr_trees] = parse_tree_indirect(head);
if (!trees[nr_trees++])
}
+static void write_merge_msg(void)
+{
+ int fd = open(git_path("MERGE_MSG"), O_WRONLY | O_CREAT, 0666);
+ if (fd < 0)
+ die_errno("Could not open '%s' for writing",
+ git_path("MERGE_MSG"));
+ if (write_in_full(fd, merge_msg.buf, merge_msg.len) != merge_msg.len)
+ die_errno("Could not write to '%s'", git_path("MERGE_MSG"));
+ close(fd);
+}
+
+static void read_merge_msg(void)
+{
+ strbuf_reset(&merge_msg);
+ if (strbuf_read_file(&merge_msg, git_path("MERGE_MSG"), 0) < 0)
+ die_errno("Could not read from '%s'", git_path("MERGE_MSG"));
+}
+
+static void run_prepare_commit_msg(void)
+{
+ write_merge_msg();
+ run_hook(get_index_file(), "prepare-commit-msg",
+ git_path("MERGE_MSG"), "merge", NULL, NULL);
+ read_merge_msg();
+}
+
static int merge_trivial(void)
{
unsigned char result_tree[20], result_commit[20];
parent->next = xmalloc(sizeof(*parent->next));
parent->next->item = remoteheads->item;
parent->next->next = NULL;
+ run_prepare_commit_msg();
commit_tree(merge_msg.buf, result_tree, parent, result_commit, NULL);
finish(result_commit, "In-index merge");
drop_save();
}
free_commit_list(remoteheads);
strbuf_addch(&merge_msg, '\n');
+ run_prepare_commit_msg();
commit_tree(merge_msg.buf, result_tree, parents, result_commit, NULL);
strbuf_addf(&buf, "Merge made by %s.", wt_strategy);
finish(result_commit, buf.buf);
return 0;
}
-static int suggest_conflicts(void)
+static int suggest_conflicts(int renormalizing)
{
FILE *fp;
int pos;
const char *best_strategy = NULL, *wt_strategy = NULL;
struct commit_list **remotes = &remoteheads;
- if (read_cache_unmerged()) {
- die_resolve_conflict("merge");
- }
- if (file_exists(git_path("MERGE_HEAD"))) {
- /*
- * There is no unmerged entry, don't advise 'git
- * add/rm <file>', just 'git commit'.
- */
- if (advice_resolve_conflict)
- die("You have not concluded your merge (MERGE_HEAD exists).\n"
- "Please, commit your changes before you can merge.");
- else
- die("You have not concluded your merge (MERGE_HEAD exists).");
- }
+ if (argc == 2 && !strcmp(argv[1], "-h"))
+ usage_with_options(builtin_merge_usage, builtin_merge_options);
- resolve_undo_clear();
/*
* Check if we are _not_ on a detached HEAD, i.e. if there is a
* current branch.
argc = parse_options(argc, argv, prefix, builtin_merge_options,
builtin_merge_usage, 0);
+
+ if (abort_current_merge) {
+ int nargc = 2;
+ const char *nargv[] = {"reset", "--merge", NULL};
+
+ if (!file_exists(git_path("MERGE_HEAD")))
+ die("There is no merge to abort (MERGE_HEAD missing).");
+
+ /* Invoke 'git reset --merge' */
+ return cmd_reset(nargc, nargv, prefix);
+ }
+
+ if (read_cache_unmerged())
+ die_resolve_conflict("merge");
+
+ if (file_exists(git_path("MERGE_HEAD"))) {
+ /*
+ * There is no unmerged entry, don't advise 'git
+ * add/rm <file>', just 'git commit'.
+ */
+ if (advice_resolve_conflict)
+ die("You have not concluded your merge (MERGE_HEAD exists).\n"
+ "Please, commit your changes before you can merge.");
+ else
+ die("You have not concluded your merge (MERGE_HEAD exists).");
+ }
+ if (file_exists(git_path("CHERRY_PICK_HEAD"))) {
+ if (advice_resolve_conflict)
+ die("You have not concluded your cherry-pick (CHERRY_PICK_HEAD exists).\n"
+ "Please, commit your changes before you can merge.");
+ else
+ die("You have not concluded your cherry-pick (CHERRY_PICK_HEAD exists).");
+ }
+ resolve_undo_clear();
+
if (verbosity < 0)
show_diffstat = 0;
die("%s - not something we can merge", argv[0]);
update_ref("initial pull", "HEAD", remote_head->sha1, NULL, 0,
DIE_ON_ERR);
- reset_hard(remote_head->sha1, 0);
+ read_empty(remote_head->sha1, 0);
return 0;
} else {
struct strbuf merge_names = STRBUF_INIT;
for (i = 0; i < argc; i++)
merge_name(argv[i], &merge_names);
- if (have_message && option_log)
- fmt_merge_msg_shortlog(&merge_names, &merge_msg);
- else if (!have_message)
- fmt_merge_msg(option_log, &merge_names, &merge_msg);
-
-
- if (!(have_message && !option_log) && merge_msg.len)
- strbuf_setlen(&merge_msg, merge_msg.len-1);
+ if (!have_message || shortlog_len) {
+ fmt_merge_msg(&merge_names, &merge_msg, !have_message,
+ shortlog_len);
+ if (merge_msg.len)
+ strbuf_setlen(&merge_msg, merge_msg.len - 1);
+ }
}
if (head_invalid || !argc)
die_errno("Could not write to '%s'", git_path("MERGE_HEAD"));
close(fd);
strbuf_addch(&merge_msg, '\n');
- fd = open(git_path("MERGE_MSG"), O_WRONLY | O_CREAT, 0666);
- if (fd < 0)
- die_errno("Could not open '%s' for writing",
- git_path("MERGE_MSG"));
- if (write_in_full(fd, merge_msg.buf, merge_msg.len) !=
- merge_msg.len)
- die_errno("Could not write to '%s'", git_path("MERGE_MSG"));
- close(fd);
+ write_merge_msg();
fd = open(git_path("MERGE_MODE"), O_WRONLY | O_CREAT | O_TRUNC, 0666);
if (fd < 0)
die_errno("Could not open '%s' for writing",
"stopped before committing as requested\n");
return 0;
} else
- return suggest_conflicts();
+ return suggest_conflicts(option_renormalize);
}