diff --git a/Documentation/git-commit.txt b/Documentation/git-commit.txt
index f4a2b8c..6e4c220 100644
--- a/Documentation/git-commit.txt
+++ b/Documentation/git-commit.txt
@@ -9,7 +9,7 @@ SYNOPSIS
--------
[verse]
'git commit' [-a | --interactive] [-s] [-v] [-u<mode>] [--amend] [--dry-run]
- [(-c | -C | --fixup) <commit>] [-F <file> | -m <msg>]
+ [(-c | -C | --fixup | --squash) <commit>] [-F <file> | -m <msg>]
[--reset-author] [--allow-empty] [--allow-empty-message] [--no-verify]
[-e] [--author=<author>] [--date=<date>] [--cleanup=<mode>]
[--status | --no-status] [--] [[-i | -o ]<file>...]
@@ -76,6 +76,13 @@ OPTIONS
commit with a prefix of "fixup! ". See linkgit:git-rebase[1]
for details.
+--squash=<commit>::
+ Construct a commit message for use with `rebase --autosquash`.
+ The commit message subject line is taken from the specified
+ commit with a prefix of "squash! ". Can be used with additional
+ commit message options (`-m`/`-c`/`-C`/`-F`). See
+ linkgit:git-rebase[1] for details.
+
--reset-author::
When used with -C/-c/--amend options, declare that the
authorship of the resulting commit now belongs of the committer.
diff --git a/builtin/commit.c b/builtin/commit.c
index 0901616..d28b2ff 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -69,7 +69,7 @@ static enum {
static const char *logfile, *force_author;
static const char *template_file;
static char *edit_message, *use_message;
-static char *fixup_message;
+static char *fixup_message, *squash_message;
static char *author_name, *author_email, *author_date;
static int all, edit_flag, also, interactive, only, amend, signoff;
static int quiet, verbose, no_verify, allow_empty, dry_run, renew_authorship;@@ -126,6 +126,7 @@ static struct option builtin_commit_options[] = {
OPT_STRING('c', "reedit-message", &edit_message, "COMMIT", "reuse and edit message from specified commit"),
OPT_STRING('C', "reuse-message", &use_message, "COMMIT", "reuse message from specified commit"),
OPT_STRING(0, "fixup", &fixup_message, "COMMIT", "use autosquash formatted message to fixup specified commit"),
+ OPT_STRING(0, "squash", &squash_message, "COMMIT", "use autosquash formatted message to squash specified commit"),
OPT_BOOLEAN(0, "reset-author", &renew_authorship, "the commit is authored by me now (used with -C-c/--amend)"),
OPT_BOOLEAN('s', "signoff", &signoff, "add Signed-off-by:"),
OPT_FILENAME('t', "template", &template_file, "use specified template file"),@@ -567,6 +568,27 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
if (!no_verify && run_hook(index_file, "pre-commit", NULL))
return 0;
+ if (squash_message) {
+ /*
+ * Insert the proper subject line before other commit
+ * message options add their content.
+ */
+ unsigned char sha1[20];
+ struct commit *commit;
+ struct pretty_print_context ctx = {0};
+
+ if (get_sha1(squash_message, sha1))
+ die("could not lookup commit %s", squash_message);
+ commit = lookup_commit_reference(sha1);
+ if (!commit || parse_commit(commit))
+ die("could not parse commit %s", squash_message);
+
+ if(use_message && strcmp(use_message, squash_message) == 0)
+ strbuf_addstr(&sb,"squash! ");
+ else
+ format_commit_message(commit, "squash! %s\n\n", &sb, &ctx);
+ }
+
if (message.len) {
strbuf_addbuf(&sb, &message);
hook_arg1 = "message";@@ -620,6 +642,16 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
else if (in_merge)
hook_arg1 = "merge";
+ if (squash_message) {
+ /*
+ * If squash_commit was used for the commit subject,
+ * then we're possibly hijacking other commit log options.
+ * Reset the hook args to tell the real story.
+ */
+ hook_arg1 = "message";
+ hook_arg2 = "";
+ }
+
fp = fopen(git_path(commit_editmsg), "w");
if (fp == NULL)
die_errno("could not open '%s'", git_path(commit_editmsg));@@ -891,7 +923,8 @@ static int parse_and_validate_options(int argc, const char *argv[],
die("You have nothing to amend.");
if (amend && in_merge)
die("You are in the middle of a merge -- cannot amend.");
-
+ if (fixup_message && squash_message)
+ die("Options --squash and --fixup cannot be used together");
if (use_message)
f++;
if (edit_message)--
1.7.3