From: Junio C Hamano <gitster@pobox•com>
To: Stefan Beller <sbeller@google•com>
Cc: szeder.dev@gmail•com, email@benjaminfuchs•de,
git@vger•kernel.org, sandals@crustytoothpaste•net,
ville.skytta@iki•fi
Subject: Re: [PATCHv2] rev-parse: add --show-superproject-working-tree
Date: Tue, 07 Mar 2017 22:01:36 -0800 [thread overview]
Message-ID: <xmqq60jk488v.fsf@gitster.mtv.corp.google.com> (raw)
In-Reply-To: <20170308005615.20321-1-sbeller@google.com> (Stefan Beller's message of "Tue, 7 Mar 2017 16:56:15 -0800")
Stefan Beller <sbeller@google•com> writes:
> + if (!strcmp(arg, "--show-superproject-working-tree")) {
> + const char *superproject = get_superproject_working_tree();
> + if (superproject)
> + puts(superproject);
> + continue;
> + }
Returning the exact string of the path from the API function is
absolutely the right thing. I however have to wonder if rev-parse
need to do the c-quoting unless it is told to show pathnames in its
output without quoting (perhaps with "-z"). Paths from "rev-parse"
(like "--git-dir", "--show-toplevel", etc.) already are excempt from
the usual quoting rules, so doing puts() and nothing else is fine to
be consistent with the existing practice, but in the longer term, I
am sure we would need to revisit so that scripts can handle paths
with funny characters sensibly, but that would be a different topic
if existing ones like "--git-dir" are already unsafe.
> if (!strcmp(arg, "--show-prefix")) {
> if (prefix)
> puts(prefix);
> diff --git a/submodule.c b/submodule.c
> index 3b98766a6b..06473d3646 100644
> --- a/submodule.c
> +++ b/submodule.c
> @@ -1514,3 +1514,86 @@ void absorb_git_dir_into_superproject(const char *prefix,
> strbuf_release(&sb);
> }
> }
> +
> +const char *get_superproject_working_tree(void)
> +{
> +...
> + argv_array_pushl(&cp.args, "--literal-pathspecs", "-C", "..",
> + "ls-files", "--stage", "--full-name", "--", subpath, NULL);
> + strbuf_reset(&sb);
> +...
> + if (starts_with(sb.buf, "160000")) {
> + int super_sub_len;
> + int cwd_len = strlen(cwd);
> + char *super_sub, *super_wt;
> +
> + /*
> + * There is a superproject having this repo as a submodule.
> + * The format is <mode> SP <hash> SP <stage> TAB <full name> LF,
> + * First remove LF, then skip up to \t.
> + */
Looks more or less right but invoke "ls-files -z" and reading the \0
delimited output would be easier; otherwise you would have to worry
about c-unquoting the pathname when the submodule is bound at a path
with funny character (like a double-quote) in it.
next prev parent reply other threads:[~2017-03-08 6:08 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-30 20:44 [PATCH 0/4] git-prompt.sh: Full patch for submodule indicator Benjamin Fuchs
2017-01-30 20:44 ` [PATCH 1/4] git-prompt.sh: add " Benjamin Fuchs
2017-01-30 23:48 ` Junio C Hamano
2017-01-31 0:10 ` Benjamin Fuchs
2017-01-31 3:11 ` Junio C Hamano
2017-02-06 4:23 ` Stefan Beller
2017-02-06 5:55 ` Jacob Keller
2017-02-06 10:13 ` Stefan Beller
2017-01-30 20:44 ` [PATCH 2/4] git-prompt.sh: rework of " Benjamin Fuchs
2017-01-31 18:06 ` SZEDER Gábor
2017-01-30 20:44 ` [PATCH 3/4] git-prompt.sh: fix for submodule 'dirty' indicator Benjamin Fuchs
2017-01-30 20:44 ` [PATCH 4/4] git-prompt.sh: add tests for submodule indicator Benjamin Fuchs
2017-01-31 18:32 ` SZEDER Gábor
2017-01-31 22:06 ` Junio C Hamano
2017-01-31 22:12 ` Stefan Beller
2017-03-07 3:45 ` [RFC PATCH] rev-parse: add --show-superproject-working-tree Stefan Beller
2017-03-07 5:13 ` Junio C Hamano
2017-03-07 7:16 ` Junio C Hamano
2017-03-07 7:23 ` Junio C Hamano
2017-03-07 18:44 ` Junio C Hamano
2017-03-07 20:40 ` Stefan Beller
2017-03-07 22:49 ` Junio C Hamano
2017-03-08 0:56 ` [PATCHv2] " Stefan Beller
2017-03-08 1:30 ` Junio C Hamano
2017-03-08 6:01 ` Junio C Hamano [this message]
2017-03-08 19:20 ` [PATCHv3] " Stefan Beller
2017-03-08 22:28 ` Junio C Hamano
2017-03-08 23:07 ` [PATCHv4] " Stefan Beller
2017-03-08 23:51 ` Junio C Hamano
2017-03-17 22:28 ` Jonathan Nieder
2017-03-17 22:51 ` [PATCH] Documentation/git-worktree: use working tree for trees on the file system Stefan Beller
2017-03-17 22:55 ` Jonathan Nieder
2017-03-17 23:04 ` Stefan Beller
2017-03-18 17:24 ` Junio C Hamano
2017-03-18 1:47 ` Junio C Hamano
2017-03-18 1:36 ` Junio C Hamano
2017-03-20 17:29 ` Stefan Beller
2017-03-20 18:12 ` Junio C Hamano
2017-03-20 18:50 ` Jonathan Nieder
2017-03-20 19:22 ` [PATCH 0/2] use "working trees" instead of "worktree" in our API Stefan Beller
2017-03-20 19:22 ` [PATCH 1/2] git.c: introduce --working-tree superseding --work-tree Stefan Beller
2017-03-20 19:58 ` Jonathan Nieder
2017-03-20 19:22 ` [PATCH 2/2] revparse: introduce --is-inside-working-tree Stefan Beller
2017-03-20 20:00 ` Jonathan Nieder
2017-03-20 19:37 ` [PATCH 0/2] use "working trees" instead of "worktree" in our API Junio C Hamano
2017-03-21 10:37 ` [PATCH] Documentation/git-worktree: use working tree for trees on the file system Duy Nguyen
2017-03-21 15:48 ` Junio C Hamano
2017-03-23 17:06 ` Michael J Gruber
2017-03-23 17:55 ` Junio C Hamano
2017-03-25 12:07 ` Duy Nguyen
2017-04-07 13:59 ` Michael J Gruber
2017-04-07 16:14 ` Jacob Keller
2017-03-25 12:05 ` Duy Nguyen
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