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Re: [PATCH] git.c: fix help.autocorrect after 57ea712 breaks it

From
Junio C Hamano <gitster@pobox.com>
Date
Jan 26, 2016, 19:02 UTC
Message-ID
<xmqqbn88cgfl.fsf@gitster.mtv.corp.google.com>
In-Reply-To
<1453814801-1925-1-git-send-email-pclouds@gmail.com>
Nguyễn Thái Ngọc Duy  <pclouds@gmail.com> writes:
Show 10 quoted lines
> diff --git a/git.c b/git.c
> index da278c3..cd733f7 100644
> --- a/git.c
> +++ b/git.c
> @@ -25,14 +25,15 @@ static const char *env_names[] = {
>  	GIT_PREFIX_ENVIRONMENT
>  };
>  static char *orig_env[4];
> -static int saved_env_before_alias;
> +static int saved_env_before_alias, saved;

Even for a file-local static, this name is a bit too generic, isn't it? saved_env_count or something perhaps?

Show 43 quoted lines
>  static void save_env_before_alias(void)
>  {
>  	int i;
> -	if (saved_env_before_alias)
> -		return;
> +	if (saved)
> +		die("BUG: uneven pair of save_env/restore_env calls");
>  	saved_env_before_alias = 1;
> +	saved = 1;
>  	orig_cwd = xgetcwd();
>  	for (i = 0; i < ARRAY_SIZE(env_names); i++) {
>  		orig_env[i] = getenv(env_names[i]);
> @@ -44,9 +45,13 @@ static void save_env_before_alias(void)
>  static void restore_env(int external_alias)
>  {
>  	int i;
> +	if (saved != 1)
> +		die("BUG: uneven pair of save_env/restore_env calls");
>  	if (!external_alias && orig_cwd && chdir(orig_cwd))
>  		die_errno("could not move to %s", orig_cwd);
>  	free(orig_cwd);
> +	orig_cwd = NULL;
> +	saved = 0;
>  	for (i = 0; i < ARRAY_SIZE(env_names); i++) {
>  		if (external_alias &&
>  		    !strcmp(env_names[i], GIT_PREFIX_ENVIRONMENT))
> diff --git a/t/t1300-repo-config.sh b/t/t1300-repo-config.sh
> index 52678e7..3f95285 100755
> --- a/t/t1300-repo-config.sh
> +++ b/t/t1300-repo-config.sh
> @@ -1201,4 +1201,12 @@ test_expect_success POSIXPERM,PERL 'preserves existing permissions' '
>  	  "die q(badrename) if ((stat(q(.git/config)))[2] & 07777) != 0600"
>  '
>  
> +test_expect_success 'autocorrect and save_env/restore_env' '
> +	git config alias.ss status &&
> +	git config help.autocorrect 1 &&
> +	git sss --porcelain | grep actual >actual &&
> +	echo "?? actual" >expected &&
> +	test_cmp expected actual
> +'
> +
>  test_done
Previous: Junio C HamanoNext: Junio C Hamano
Message 6 of 22 in “[BUG] typo DWIMery with alias broken (cd to random dir)”
  1. Michael J GruberJan 26, 2016
  2. Duy NguyenJan 26, 2016
  3. git.c: fix help.autocorrect after 57ea712 breaks itNguyễn Thái Ngọc Duy, Jan 26, 2016
  4. Michael J GruberJan 26, 2016
  5. Junio C HamanoJan 26, 2016
  6. Junio C HamanoJan 26, 2016
  7. Junio C HamanoJan 26, 2016
  8. Junio C HamanoJan 27, 2016
  9. 2/3 git: protect against unbalanced calls to {save,restore}_env()Junio C Hamano, Jan 27, 2016
  10. 2/3 git: protect against unbalanced calls to {save,restore}_env()Junio C Hamano, Jan 27, 2016
  11. 3/3 git: simplify environment save/restore logicJunio C Hamano, Jan 27, 2016
  12. 3/3 git: simplify environment save/restore logicJunio C Hamano, Jan 27, 2016
  13. Junio C HamanoJan 27, 2016
  14. Duy NguyenJan 27, 2016
  15. Junio C HamanoJan 27, 2016
  16. 1/3 git: remove an early return from save_env_before_alias()Junio C Hamano, Jan 27, 2016
  17. 1/4 git: remove an early return from save_env_before_alias()Junio C Hamano, Feb 2, 2016
  18. 2/4 git: protect against unbalanced calls to {save,restore}_env()Junio C Hamano, Feb 2, 2016
  19. 3/4 git: simplify environment save/restore logicJunio C Hamano, Feb 2, 2016
  20. 4/4 restore_env(): free the saved environment variable once we are doneJunio C Hamano, Feb 2, 2016
  21. Eric SunshineFeb 3, 2016
  22. Junio C HamanoFeb 3, 2016

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