From: Junio C Hamano <gitster@pobox.com>
To: Stefan Beller <sbeller@google.com>
Cc: Brandon Williams <bmwill@google.com>,
"git\@vger.kernel.org" <git@vger.kernel.org>,
Jeff King <peff@peff.net>,
Johannes Schindelin <johannes.schindelin@gmx.de>,
Duy Nguyen <pclouds@gmail.com>
Subject: Re: [PATCH v3 2/5] setup: allow for prefix to be passed to git commands
Date: Fri, 17 Mar 2017 12:17:28 -0700 [thread overview]
Message-ID: <xmqq60j77lx3.fsf@gitster.mtv.corp.google.com> (raw)
In-Reply-To: <CAGZ79kZAZeb5rsL80dty_tRM5SDCAXVq_yATpDQREq_vV4Yj+Q@mail.gmail.com> (Stefan Beller's message of "Fri, 17 Mar 2017 12:07:46 -0700")
Stefan Beller <sbeller@google.com> writes:
>> prefix = setup_git_directory_gently_1(nongit_ok);
>> + env_prefix = getenv(GIT_TOPLEVEL_PREFIX_ENVIRONMENT);
>> +
>> + if (env_prefix)
>> + prefix = env_prefix;
>> +
>> if (prefix)
>> setenv(GIT_PREFIX_ENVIRONMENT, prefix, 1);
>
> so we load that GIT_TOPLEVEL_PREFIX_ENVIRONMENT prefix
> first, such that we essentially copy it into GIT_PREFIX_ENVIRONMENT,
> such that e.g. aliased commands will know about the superprefix, too.
If the aliased commands or anything else spawned from this process
is happy with GIT_PREFIX set to the outside of the current
repository, doing this setenv() is OK. If you are in ~/dir1, and
your repository is in ~/repos/repo1, and if you somehow had a way
to run your "git" inside ~/repos/repo1 without doing any chdir(2),
then you are essentially setting ../../dir1/ as GIT_PREFIX for that
"git" invocation (this has nothing to do with submodules).
But if your "git" is fine with GIT_PREFIX pointing outside the root
level of the working tree of the current repository like that, do we
even need a separate toplevel prefix environment, I have to wonder?
That is, if this "if TOPLEVEL_PREFIX environment is there, set it to
local variable prefix and export it as GIT_PREFIX" is expected to
work correctly for anything that would inherit that GIT_PREFIX, then
we should be able to invoke the "git" that got TOPLEVEL_PREFIX
without setting that environment, but instead setting the same value
to GIT_PREFIX and we should get the same behaviour, no?
next prev parent reply other threads:[~2017-03-17 19:18 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-24 23:50 [PATCH 0/5] recursing submodules with relative pathspec (grep and ls-files) Brandon Williams
2017-02-24 23:50 ` [PATCH 1/5] grep: illustrate bug when recursing with relative pathspec Brandon Williams
2017-02-26 9:53 ` Duy Nguyen
2017-02-27 18:14 ` Brandon Williams
2017-02-24 23:50 ` [PATCH 2/5] pathspec: add PATHSPEC_FROMROOT flag Brandon Williams
2017-02-25 0:31 ` Stefan Beller
2017-02-24 23:50 ` [PATCH 3/5] grep: fix bug when recuring with relative pathspec Brandon Williams
2017-02-28 21:04 ` Junio C Hamano
2017-03-02 18:00 ` Brandon Williams
2017-02-24 23:50 ` [PATCH 4/5] ls-files: illustrate bug when recursing " Brandon Williams
2017-02-24 23:51 ` [PATCH 5/5] ls-files: fix bug when recuring " Brandon Williams
2017-02-28 21:07 ` Junio C Hamano
2017-03-02 18:01 ` Brandon Williams
2017-02-27 17:52 ` [PATCH 0/5] recursing submodules with relative pathspec (grep and ls-files) Brandon Williams
2017-03-06 23:07 ` [RFC PATCH] grep: fix bug when recursing with relative pathspec Brandon Williams
2017-03-14 22:10 ` [PATCH v2 0/4] recursing submodules with relative pathspec (grep and ls-files) Brandon Williams
2017-03-14 22:10 ` [PATCH v2 1/4] grep: fix help text typo Brandon Williams
2017-03-14 22:49 ` Stefan Beller
2017-03-15 0:20 ` Brandon Williams
2017-03-14 22:10 ` [PATCH v2 2/4] setup: allow for prefix to be passed to git commands Brandon Williams
2017-03-14 22:28 ` Johannes Schindelin
2017-03-14 22:35 ` Brandon Williams
2017-03-14 22:10 ` [PATCH v2 3/4] grep: fix bug when recursing with relative pathspec Brandon Williams
2017-03-14 23:03 ` Stefan Beller
2017-03-14 22:11 ` [PATCH v2 4/4] ls-files: " Brandon Williams
2017-03-14 23:06 ` Stefan Beller
2017-03-15 17:02 ` Brandon Williams
2017-03-17 17:22 ` [PATCH v3 0/5] recursing submodules with relative pathspec (grep and ls-files) Brandon Williams
2017-03-17 17:22 ` [PATCH v3 1/5] grep: fix help text typo Brandon Williams
2017-03-17 17:22 ` [PATCH v3 2/5] setup: allow for prefix to be passed to git commands Brandon Williams
2017-03-17 19:07 ` Stefan Beller
2017-03-17 19:08 ` Brandon Williams
2017-03-17 19:10 ` Stefan Beller
2017-03-17 19:17 ` Brandon Williams
2017-03-17 19:17 ` Junio C Hamano [this message]
2017-03-17 19:21 ` Brandon Williams
2017-03-17 20:30 ` Junio C Hamano
2017-03-17 21:00 ` Brandon Williams
2017-03-17 21:25 ` Junio C Hamano
2017-03-20 22:34 ` Brandon Williams
2017-03-21 16:56 ` Junio C Hamano
2017-03-28 23:58 ` Stefan Beller
2017-03-17 17:22 ` [PATCH v3 3/5] grep: fix bug when recursing with relative pathspec Brandon Williams
2017-03-21 11:47 ` Duy Nguyen
2017-03-21 17:56 ` Junio C Hamano
2017-03-22 21:46 ` Brandon Williams
2017-03-17 17:22 ` [PATCH v3 4/5] ls-files: fix typo in variable name Brandon Williams
2017-03-17 17:22 ` [PATCH v3 5/5] ls-files: fix bug when recursing with relative pathspec Brandon Williams
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