From: Phillip Wood <phillip.wood@talktalk.net>
To: Git Mailing List <git@vger.kernel.org>
Cc: Johannes Schindelin <Johannes.Schindelin@gmx.de>,
Junio C Hamano <gitster@pobox.com>,
Phillip Wood <phillip.wood@dunelm.org.uk>
Subject: [PATCH] rebase -x: sanity check command
Date: Mon, 28 Jan 2019 10:26:20 +0000 [thread overview]
Message-ID: <20190128102620.18222-1-phillip.wood@talktalk.net> (raw)
From: Phillip Wood <phillip.wood@dunelm.org.uk>
If the user gives an empty argument to --exec then the rebase starts to
run before erroring out with
error: missing arguments for exec
error: invalid line 2: exec
You can fix this with 'git rebase --edit-todo' and then run 'git rebase --continue'.
Or you can abort the rebase with 'git rebase --abort'.
Instead check for empty commands before starting the rebase.
Also check that the command does not contain any newlines as the
todo-list format is unable to cope with multiline commands. Note that
this changes the behavior, before this change one could do
git rebase --exec='echo one
exec echo two'
and it would insert two exec lines in the todo list, now it will error
out.
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
---
builtin/rebase.c | 22 ++++++++++++++++++++++
t/t3404-rebase-interactive.sh | 19 +++++++++++++++++++
2 files changed, 41 insertions(+)
diff --git a/builtin/rebase.c b/builtin/rebase.c
index 00de70365e..b6c54b03c1 100644
--- a/builtin/rebase.c
+++ b/builtin/rebase.c
@@ -793,6 +793,24 @@ static void set_reflog_action(struct rebase_options *options)
strbuf_release(&buf);
}
+static int check_exec_cmd(const char *cmd)
+{
+ int non_blank = 0;
+
+ while (*cmd) {
+ if (*cmd == '\n')
+ return error(_("exec commands cannot contain newlines"));
+ if (!isspace(*cmd))
+ non_blank = 1;
+ cmd++;
+ }
+
+ if (non_blank)
+ return 0;
+
+ return error(_("empty exec command"));
+}
+
int cmd_rebase(int argc, const char **argv, const char *prefix)
{
struct rebase_options options = {
@@ -1130,6 +1148,10 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
}
}
+ for (i = 0; i < exec.nr; i++)
+ if (check_exec_cmd(exec.items[i].string))
+ exit(1);
+
if (!(options.flags & REBASE_NO_QUIET))
argv_array_push(&options.git_am_opts, "-q");
diff --git a/t/t3404-rebase-interactive.sh b/t/t3404-rebase-interactive.sh
index 7a440e08d8..c98f64eb2d 100755
--- a/t/t3404-rebase-interactive.sh
+++ b/t/t3404-rebase-interactive.sh
@@ -147,6 +147,25 @@ test_expect_success 'rebase -i with the exec command checks tree cleanness' '
git rebase --continue
'
+test_expect_success 'rebase -x with empty command fails' '
+ test_when_finished "git rebase --abort ||:" &&
+ test_must_fail git rebase -x "" @ 2>actual &&
+ test_write_lines "error: empty exec command" >expected &&
+ test_i18ncmp expected actual &&
+ test_must_fail git rebase -x " " @ 2>actual &&
+ test_i18ncmp expected actual
+'
+
+LF='
+'
+test_expect_success 'rebase -x with newline in command fails' '
+ test_when_finished "git rebase --abort ||:" &&
+ test_must_fail git rebase -x "a${LF}b" @ 2>actual &&
+ test_write_lines "error: exec commands cannot contain newlines" \
+ >expected &&
+ test_i18ncmp expected actual
+'
+
test_expect_success 'rebase -i with exec of inexistent command' '
git checkout master &&
test_when_finished "git rebase --abort" &&
--
2.20.1
next reply other threads:[~2019-01-28 10:26 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-28 10:26 Phillip Wood [this message]
2019-01-28 18:23 ` [PATCH] rebase -x: sanity check command Junio C Hamano
2019-01-28 21:56 ` Johannes Schindelin
2019-01-29 11:40 ` Phillip Wood
2019-01-29 15:35 ` Johannes Schindelin
2019-01-28 22:03 ` Johannes Schindelin
2019-01-29 11:34 ` Phillip Wood
2019-01-29 15:32 ` Johannes Schindelin
2019-01-29 18:43 ` [PATCH v2] " Phillip Wood
2019-01-29 21:53 ` Junio C Hamano
2019-01-30 12:25 ` Johannes Schindelin
2019-02-13 13:31 ` Ævar Arnfjörð Bjarmason
2019-02-13 14:22 ` [PATCH] rebase: remove the rebase.useBuiltin setting Ævar Arnfjörð Bjarmason
2019-02-13 16:25 ` Johannes Schindelin
2019-02-13 20:46 ` Junio C Hamano
2019-02-13 21:49 ` [PATCH] rebase: fix regression in rebase.useBuiltin=false test mode Ævar Arnfjörð Bjarmason
2019-02-13 23:21 ` Junio C Hamano
2019-02-14 16:12 ` Phillip Wood
2019-03-14 13:24 ` [PATCH v2] rebase: remove the rebase.useBuiltin setting Ævar Arnfjörð Bjarmason
2019-03-14 14:58 ` Johannes Schindelin
2019-03-14 15:27 ` Ævar Arnfjörð Bjarmason
2019-03-15 13:45 ` [PATCH v3] " Ævar Arnfjörð Bjarmason
2019-03-15 15:44 ` Johannes Schindelin
2019-03-15 16:11 ` Ævar Arnfjörð Bjarmason
2019-03-18 6:06 ` Junio C Hamano
2019-03-18 10:19 ` Phillip Wood
2019-03-18 11:01 ` [PATCH v4] " Ævar Arnfjörð Bjarmason
2019-03-19 10:21 ` Phillip Wood
2021-03-23 15:23 ` [PATCH] rebase: remove transitory rebase.useBuiltin setting & env Ævar Arnfjörð Bjarmason
2021-03-23 20:42 ` Junio C Hamano
2021-03-23 20:52 ` Johannes Schindelin
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