1 files changed, 54 insertions, 12 deletions

diff --git a/sequencer.c b/sequencer.c
index 78d09f9252..4ccb5451a9 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -150,6 +150,7 @@ static GIT_PATH_FUNC(rebase_path_refs_to_delete, "rebase-merge/refs-to-delete")
  */
 static GIT_PATH_FUNC(rebase_path_gpg_sign_opt, "rebase-merge/gpg_sign_opt")
 static GIT_PATH_FUNC(rebase_path_cdate_is_adate, "rebase-merge/cdate_is_adate")
+static GIT_PATH_FUNC(rebase_path_ignore_date, "rebase-merge/ignore_date")
 static GIT_PATH_FUNC(rebase_path_orig_head, "rebase-merge/orig-head")
 static GIT_PATH_FUNC(rebase_path_verbose, "rebase-merge/verbose")
 static GIT_PATH_FUNC(rebase_path_quiet, "rebase-merge/quiet")
@@ -959,7 +960,11 @@ static int run_git_commit(struct repository *r,
 
 	if (opts->committer_date_is_author_date)
 		argv_array_pushf(&cmd.env_array, "GIT_COMMITTER_DATE=%s",
+				 opts->ignore_date ?
+				 "" :
 				 author_date_from_env_array(&cmd.env_array));
+	if (opts->ignore_date)
+		argv_array_push(&cmd.env_array, "GIT_AUTHOR_DATE=");
 
 	argv_array_push(&cmd.args, "commit");
 
@@ -1434,26 +1439,51 @@ static int try_to_commit(struct repository *r,
 		struct ident_split id;
 		struct strbuf date = STRBUF_INIT;
 
-		if (split_ident_line(&id, author, (int)strlen(author)) < 0) {
-			res = error(_("invalid author identity '%s'"), author);
-			goto out;
-		}
-		if (!id.date_begin) {
-			res = error(_("corrupt author: missing date information"));
-			goto out;
+		if (!opts->ignore_date) {
+			if (split_ident_line(&id, author, (int)strlen(author)) < 0) {
+				res = error(_("invalid author identity '%s'"),
+					    author);
+				goto out;
+			}
+			if (!id.date_begin) {
+				res = error(_(
+					"corrupt author: missing date information"));
+				goto out;
+			}
+			strbuf_addf(&date, "@%.*s %.*s",
+				    (int)(id.date_end - id.date_begin),
+				    id.date_begin,
+				    (int)(id.tz_end - id.tz_begin),
+				    id.tz_begin);
+		} else {
+			reset_ident_date();
 		}
-		strbuf_addf(&date, "@%.*s %.*s",
-			    (int)(id.date_end - id.date_begin), id.date_begin,
-			    (int)(id.tz_end - id.tz_begin), id.tz_begin);
 		committer = fmt_ident(opts->committer_name,
 				      opts->committer_email,
-				      WANT_COMMITTER_IDENT, date.buf,
+				      WANT_COMMITTER_IDENT,
+				      opts->ignore_date ? NULL : date.buf,
 				      IDENT_STRICT);
 		strbuf_release(&date);
 	} else {
 		reset_ident_date();
 	}
 
+	if (opts->ignore_date) {
+		struct ident_split id;
+		char *name, *email;
+
+		if (split_ident_line(&id, author, strlen(author)) < 0) {
+			error(_("invalid author identity '%s'"), author);
+			goto out;
+		}
+		name = xmemdupz(id.name_begin, id.name_end - id.name_begin);
+		email = xmemdupz(id.mail_begin, id.mail_end - id.mail_begin);
+		author = fmt_ident(name, email, WANT_AUTHOR_IDENT, NULL,
+				   IDENT_STRICT);
+		free(name);
+		free(email);
+	}
+
 	if (commit_tree_extended(msg->buf, msg->len, &tree, parents, oid,
 				 author, committer, opts->gpg_sign, extra)) {
 		res = error(_("failed to write commit object"));
@@ -2583,6 +2613,11 @@ static int read_populate_opts(struct replay_opts *opts)
 			opts->committer_date_is_author_date = 1;
 		}
 
+		if (file_exists(rebase_path_ignore_date())) {
+			opts->allow_ff = 0;
+			opts->ignore_date = 1;
+		}
+
 		if (file_exists(rebase_path_reschedule_failed_exec()))
 			opts->reschedule_failed_exec = 1;
 
@@ -2675,6 +2710,8 @@ int write_basic_state(struct replay_opts *opts, const char *head_name,
 		write_file(rebase_path_keep_redundant_commits(), "%s", "");
 	if (opts->committer_date_is_author_date)
 		write_file(rebase_path_cdate_is_adate(), "%s", "");
+	if (opts->ignore_date)
+		write_file(rebase_path_ignore_date(), "%s", "");
 	if (opts->reschedule_failed_exec)
 		write_file(rebase_path_reschedule_failed_exec(), "%s", "");
 
@@ -3597,7 +3634,11 @@ static int do_merge(struct repository *r,
 
 		if (opts->committer_date_is_author_date)
 			argv_array_pushf(&cmd.env_array, "GIT_COMMITTER_DATE=%s",
+					 opts->ignore_date ?
+					 "" :
 					 author_date_from_env_array(&cmd.env_array));
+		if (opts->ignore_date)
+			argv_array_push(&cmd.env_array, "GIT_AUTHOR_DATE=");
 
 		cmd.git_cmd = 1;
 		argv_array_push(&cmd.args, "merge");
@@ -3877,7 +3918,8 @@ static int pick_commits(struct repository *r,
 	if (opts->allow_ff)
 		assert(!(opts->signoff || opts->no_commit ||
 			 opts->record_origin || opts->edit ||
-			 opts->committer_date_is_author_date));
+			 opts->committer_date_is_author_date ||
+			 opts->ignore_date));
 	if (read_and_refresh_cache(r, opts))
 		return -1;