diff options
author | Phillip Wood <phillip.wood@dunelm.org.uk> | 2019-01-29 21:43:27 +0300 |
---|---|---|
committer | Junio C Hamano <gitster@pobox.com> | 2019-01-30 00:34:51 +0300 |
commit | c762aada1ab3a2c428c462e0e6964d9f37107da7 (patch) | |
tree | bbebee0fe64928af8bf20968abec2bbb32ecc016 | |
parent | 0d0ac3826a3bbb9247e39e12623bbcfdd722f24c (diff) |
rebase -x: sanity check command
If the user gives an empty argument to --exec then git creates a todo
list that it cannot parse. 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>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rw-r--r-- | builtin/rebase.c | 17 | ||||
-rwxr-xr-x | t/t3404-rebase-interactive.sh | 19 |
2 files changed, 36 insertions, 0 deletions
diff --git a/builtin/rebase.c b/builtin/rebase.c index b5c99ec10c2..f9f231a5f09 100644 --- a/builtin/rebase.c +++ b/builtin/rebase.c @@ -793,6 +793,19 @@ static void set_reflog_action(struct rebase_options *options) strbuf_release(&buf); } +static int check_exec_cmd(const char *cmd) +{ + if (strchr(cmd, '\n')) + return error(_("exec commands cannot contain newlines")); + + /* Does the command consist purely of whitespace? */ + if (!cmd[strspn(cmd, " \t\r\f\v")]) + return error(_("empty exec command")); + + return 0; +} + + int cmd_rebase(int argc, const char **argv, const char *prefix) { struct rebase_options options = { @@ -1130,6 +1143,10 @@ 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 7a440e08d82..c98f64eb2d2 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" && |