[PATCH] rebase, cherry-pick, revert: only run from toplevel

["Elijah Newren via GitGitGadget" <gitgitgadget@gmail.com>]

From: Elijah Newren <newren@gmail.com>

Allowing rebase, cherry-pick and revert to run from subdirectories
inevitably leads to eventual user confusion.  For example, if they
are within a directory that was created by one of the patches being
rebased, then the rebase operation could hit a conflict before the
directory is restored leading the user to be running from a directory
that no longer exists.  Similarly with cherry-pick and revert, those
operations could result in the directory being removed.

Similar to bisect, simply require that these commands be run from the
toplevel to avoid such problems.

Signed-off-by: Elijah Newren <newren@gmail.com>
---
    rebase, cherry-pick, revert: only run from toplevel
    
    Allowing rebase, cherry-pick and revert to run from subdirectories
    inevitably leads to eventual user confusion. For example, if they are
    within a directory that was created by one of the patches being rebased,
    then the rebase operation could hit a conflict before the directory is
    restored leading the user to be running from a directory that no longer
    exists. Similarly with cherry-pick and revert, those operations could
    result in the directory being removed.
    
    Similar to bisect, simply require that these commands be run from the
    toplevel to avoid such problems.
    
    Signed-off-by: Elijah Newren newren@gmail.com

Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-git-1083%2Fnewren%2Ftoplevel-sequencing-v1
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-git-1083/newren/toplevel-sequencing-v1
Pull-Request: https://github.com/git/git/pull/1083

 builtin/rebase.c              |  3 +++
 builtin/revert.c              |  6 ++++++
 t/t3404-rebase-interactive.sh | 22 ----------------------
 3 files changed, 9 insertions(+), 22 deletions(-)

diff --git a/builtin/rebase.c b/builtin/rebase.c
index c284a7ace19..7100f0627f6 100644
--- a/builtin/rebase.c
+++ b/builtin/rebase.c
@@ -1430,6 +1430,9 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
 		usage_with_options(builtin_rebase_usage,
 				   builtin_rebase_options);
 
+	if (prefix)
+		die(_("You need to run this command from the toplevel of the working tree."));
+
 	options.allow_empty_message = 1;
 	git_config(rebase_config, &options);
 	/* options.gpg_sign_opt will be either "-S" or NULL */
diff --git a/builtin/revert.c b/builtin/revert.c
index 237f2f18d4c..9a150dcbdaf 100644
--- a/builtin/revert.c
+++ b/builtin/revert.c
@@ -230,6 +230,9 @@ int cmd_revert(int argc, const char **argv, const char *prefix)
 	struct replay_opts opts = REPLAY_OPTS_INIT;
 	int res;
 
+	if (prefix)
+		die(_("You need to run this command from the toplevel of the working tree."));
+
 	opts.action = REPLAY_REVERT;
 	sequencer_init_config(&opts);
 	res = run_sequencer(argc, argv, &opts);
@@ -243,6 +246,9 @@ int cmd_cherry_pick(int argc, const char **argv, const char *prefix)
 	struct replay_opts opts = REPLAY_OPTS_INIT;
 	int res;
 
+	if (prefix)
+		die(_("You need to run this command from the toplevel of the working tree."));
+
 	opts.action = REPLAY_PICK;
 	sequencer_init_config(&opts);
 	res = run_sequencer(argc, argv, &opts);
diff --git a/t/t3404-rebase-interactive.sh b/t/t3404-rebase-interactive.sh
index 66bcbbf9528..dd1afb97fca 100755
--- a/t/t3404-rebase-interactive.sh
+++ b/t/t3404-rebase-interactive.sh
@@ -112,28 +112,6 @@ test_expect_success 'rebase -i with the exec command' '
 	rm -f touch-*
 '
 
-test_expect_success 'rebase -i with the exec command runs from tree root' '
-	git checkout primary &&
-	mkdir subdir && (cd subdir &&
-	set_fake_editor &&
-	FAKE_LINES="1 exec_>touch-subdir" \
-		git rebase -i HEAD^
-	) &&
-	test_path_is_file touch-subdir &&
-	rm -fr subdir
-'
-
-test_expect_success 'rebase -i with exec allows git commands in subdirs' '
-	test_when_finished "rm -rf subdir" &&
-	test_when_finished "git rebase --abort ||:" &&
-	git checkout primary &&
-	mkdir subdir && (cd subdir &&
-	set_fake_editor &&
-	FAKE_LINES="1 x_cd_subdir_&&_git_rev-parse_--is-inside-work-tree" \
-		git rebase -i HEAD^
-	)
-'
-
 test_expect_success 'rebase -i sets work tree properly' '
 	test_when_finished "rm -rf subdir" &&
 	test_when_finished "test_might_fail git rebase --abort" &&

base-commit: 6c40894d2466d4e7fddc047a05116aa9d14712ee
-- 
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