diff options
Diffstat (limited to 'builtin')
| -rw-r--r-- | builtin/merge.c | 38 |
1 files changed, 34 insertions, 4 deletions
diff --git a/builtin/merge.c b/builtin/merge.c index 99f1429b35..0006175d15 100644 --- a/builtin/merge.c +++ b/builtin/merge.c @@ -46,7 +46,7 @@ static const char * const builtin_merge_usage[] = { static int show_diffstat = 1, shortlog_len, squash; static int option_commit = 1, allow_fast_forward = 1; -static int fast_forward_only, option_edit; +static int fast_forward_only, option_edit = -1; static int allow_trivial = 1, have_message; static struct strbuf merge_msg; static struct commit_list *remoteheads; @@ -189,7 +189,7 @@ static struct option builtin_merge_options[] = { "create a single commit instead of doing a merge"), OPT_BOOLEAN(0, "commit", &option_commit, "perform a commit if the merge succeeds (default)"), - OPT_BOOLEAN('e', "edit", &option_edit, + OPT_BOOL('e', "edit", &option_edit, "edit message before committing"), OPT_BOOLEAN(0, "ff", &allow_fast_forward, "allow fast-forward (default)"), @@ -877,12 +877,12 @@ static void prepare_to_commit(void) write_merge_msg(&msg); run_hook(get_index_file(), "prepare-commit-msg", git_path("MERGE_MSG"), "merge", NULL, NULL); - if (option_edit) { + if (0 < option_edit) { if (launch_editor(git_path("MERGE_MSG"), NULL, NULL)) abort_commit(NULL); } read_merge_msg(&msg); - stripspace(&msg, option_edit); + stripspace(&msg, 0 < option_edit); if (!msg.len) abort_commit(_("Empty commit message.")); strbuf_release(&merge_msg); @@ -1076,6 +1076,33 @@ static void write_merge_state(void) close(fd); } +static int default_edit_option(void) +{ + static const char name[] = "GIT_MERGE_AUTOEDIT"; + const char *e = getenv(name); + struct stat st_stdin, st_stdout; + + if (have_message) + /* an explicit -m msg without --[no-]edit */ + return 0; + + if (e) { + int v = git_config_maybe_bool(name, e); + if (v < 0) + die("Bad value '%s' in environment '%s'", e, name); + return v; + } + + /* Use editor if stdin and stdout are the same and is a tty */ + return (!fstat(0, &st_stdin) && + !fstat(1, &st_stdout) && + isatty(0) && + st_stdin.st_dev == st_stdout.st_dev && + st_stdin.st_ino == st_stdout.st_ino && + st_stdin.st_mode == st_stdout.st_mode); +} + + int cmd_merge(int argc, const char **argv, const char *prefix) { unsigned char result_tree[20]; @@ -1261,6 +1288,9 @@ int cmd_merge(int argc, const char **argv, const char *prefix) } } + if (option_edit < 0) + option_edit = default_edit_option(); + if (!use_strategies) { if (!remoteheads->next) add_strategies(pull_twohead, DEFAULT_TWOHEAD); |