From 34bec2c458474bdc05ced34d6789ee6c9fb7f051 Mon Sep 17 00:00:00 2001 From: Alban Gruin Date: Fri, 10 Aug 2018 18:51:32 +0200 Subject: [PATCH] sequencer: add a new function to silence a command, except if it fails This adds a new function, run_command_silent_on_success(), to redirect the stdout and stderr of a command to a strbuf, and then to run that command. This strbuf is printed only if the command fails. It is functionnaly similar to output() from git-rebase.sh. run_git_commit() is then refactored to use of run_command_silent_on_success(). Signed-off-by: Alban Gruin Signed-off-by: Junio C Hamano --- sequencer.c | 51 +++++++++++++++++++++++++-------------------------- 1 file changed, 25 insertions(+), 26 deletions(-) diff --git a/sequencer.c b/sequencer.c index 33d73194d0..960a935444 100644 --- a/sequencer.c +++ b/sequencer.c @@ -769,6 +769,23 @@ N_("you have staged changes in your working tree\n" #define VERIFY_MSG (1<<4) #define CREATE_ROOT_COMMIT (1<<5) +static int run_command_silent_on_success(struct child_process *cmd) +{ + struct strbuf buf = STRBUF_INIT; + int rc; + + cmd->stdout_to_stderr = 1; + rc = pipe_command(cmd, + NULL, 0, + NULL, 0, + &buf, 0); + + if (rc) + fputs(buf.buf, stderr); + strbuf_release(&buf); + return rc; +} + /* * If we are cherry-pick, and if the merge did not result in * hand-editing, we will hit this commit and inherit the original @@ -823,18 +840,11 @@ static int run_git_commit(const char *defmsg, struct replay_opts *opts, cmd.git_cmd = 1; - if (is_rebase_i(opts)) { - if (!(flags & EDIT_MSG)) { - cmd.stdout_to_stderr = 1; - cmd.err = -1; - } + if (is_rebase_i(opts) && read_env_script(&cmd.env_array)) { + const char *gpg_opt = gpg_sign_opt_quoted(opts); - if (read_env_script(&cmd.env_array)) { - const char *gpg_opt = gpg_sign_opt_quoted(opts); - - return error(_(staged_changes_advice), - gpg_opt, gpg_opt); - } + return error(_(staged_changes_advice), + gpg_opt, gpg_opt); } argv_array_push(&cmd.args, "commit"); @@ -864,21 +874,10 @@ static int run_git_commit(const char *defmsg, struct replay_opts *opts, if (opts->allow_empty_message) argv_array_push(&cmd.args, "--allow-empty-message"); - if (cmd.err == -1) { - /* hide stderr on success */ - struct strbuf buf = STRBUF_INIT; - int rc = pipe_command(&cmd, - NULL, 0, - /* stdout is already redirected */ - NULL, 0, - &buf, 0); - if (rc) - fputs(buf.buf, stderr); - strbuf_release(&buf); - return rc; - } - - return run_command(&cmd); + if (is_rebase_i(opts) && !(flags & EDIT_MSG)) + return run_command_silent_on_success(&cmd); + else + return run_command(&cmd); } static int rest_is_empty(const struct strbuf *sb, int start)