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From: Patrick Steinhardt <ps@pks.im>
To: git@vger.kernel.org
Cc: "Ævar Arnfjörð Bjarmason" <avarab@gmail.com>,
	"Junio C Hamano" <gitster@pobox.com>, "Jeff King" <peff@peff.net>,
	"brian m. carlson" <sandals@crustytoothpaste.net>,
	"Philip Oakley" <philipoakley@iee.email>
Subject: [PATCH v6 0/8] config: allow specifying config entries via env
Date: Thu, 7 Jan 2021 07:36:42 +0100
Message-ID: <cover.1610001187.git.ps@pks.im> (raw)
In-Reply-To: <cover.1606214397.git.ps@pks.im>


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Hi,

this is the sixth version of my patch series which aims to implement a
way to pass config entries via the environment while avoiding any
requirements to perform shell quoting on the user's side.

The only change in this version is improved formatting and wording of
the documentation as proposed by Junio. Please see the attached
range-diff.

Patrick

Jeff King (3):
  quote: make sq_dequote_step() a public function
  config: store "git -c" variables using more robust format
  config: parse more robust format in GIT_CONFIG_PARAMETERS

Patrick Steinhardt (5):
  git: add `--super-prefix` to usage string
  config: add new way to pass config via `--config-env`
  config: extract function to parse config pairs
  environment: make `getenv_safe()` a public function
  config: allow specifying config entries via envvar pairs

 Documentation/git-config.txt |  16 +++
 Documentation/git.txt        |  24 +++-
 cache.h                      |   1 +
 config.c                     | 205 ++++++++++++++++++++++++++++----
 config.h                     |   1 +
 environment.c                |   8 +-
 environment.h                |  12 ++
 git.c                        |   3 +
 quote.c                      |  15 ++-
 quote.h                      |  18 ++-
 t/t1300-config.sh            | 220 ++++++++++++++++++++++++++++++++++-
 11 files changed, 484 insertions(+), 39 deletions(-)
 create mode 100644 environment.h

Range-diff against v5:
1:  470521e728 = 1:  cd3de0743a git: add `--super-prefix` to usage string
2:  56c9221c4c ! 2:  9b8461010e config: add new way to pass config via `--config-env`
    @@ Documentation/git.txt: config file). Including the equals but with an empty valu
      --type=bool` will convert to `false`.
      
     +--config-env=<name>=<envvar>::
    -+	Like `-c <name>=<var>` except the value is the name of an
    ++	Like `-c <name>=<value>`, give configuration variable
    ++	'<name>' a value, where <envvar> is the name of an
     +	environment variable from which to retrieve the value. Unlike
     +	`-c` there is no shortcut for directly setting the value to an
     +	empty string, instead the environment variable itself must be
    -+	set to the empty strin. Errors if the `<envvar>` does not exist
    ++	set to the empty string.  It is an error if the `<envvar>` does not exist
     +	in the environment. `<envvar>` may not contain an equals sign
     +	to avoid ambiguity with `<name>`s which contain one.
    -+
    -+	This is useful for cases where you want to pass transitory
    -+	configuration options to git, but are doing so on OS's where
    -+	other processes might be able to read your cmdline
    -+	(e.g. `/proc/self/cmdline`), but not your environ
    -+	(e.g. `/proc/self/environ`). That behavior is the default on
    -+	Linux, but may not be on your system.
    -+
    -+	Note that this might add security for variables such as
    -+	`http.extraHeader` where the sensitive information is part of
    -+	the value, but not e.g. `url.<base.insteadOf` where the
    -+	sensitive information can be part of the key.
    +++
    ++This is useful for cases where you want to pass transitory
    ++configuration options to git, but are doing so on OS's where
    ++other processes might be able to read your cmdline
    ++(e.g. `/proc/self/cmdline`), but not your environ
    ++(e.g. `/proc/self/environ`). That behavior is the default on
    ++Linux, but may not be on your system.
    +++
    ++Note that this might add security for variables such as
    ++`http.extraHeader` where the sensitive information is part of
    ++the value, but not e.g. `url.<base>.insteadOf` where the
    ++sensitive information can be part of the key.
     +
      --exec-path[=<path>]::
      	Path to wherever your core Git programs are installed.
3:  5729f5d406 = 3:  9d4c8d7be9 quote: make sq_dequote_step() a public function
4:  8c6cdd57a0 = 4:  0a9b085fe5 config: extract function to parse config pairs
5:  ff96e59e79 = 5:  b96686c9cd config: store "git -c" variables using more robust format
6:  d832f3dedf = 6:  6597700ffb config: parse more robust format in GIT_CONFIG_PARAMETERS
7:  2f51a0c5fc = 7:  cade8fb12f environment: make `getenv_safe()` a public function
8:  dfceffd8d4 ! 8:  4e3f208d13 config: allow specifying config entries via envvar pairs
    @@ Documentation/git-config.txt: GIT_CONFIG_NOSYSTEM::
     +	pairs are processed. These environment variables will override values
     +	in configuration files, but will be overridden by any explicit options
     +	passed via `git -c`.
    -+
    -+	This is useful for cases where you want to spawn multiple git commands
    -+	with a common configuration but cannot depend on a configuration file,
    -+	for example when writing scripts.
    +++
    ++This is useful for cases where you want to spawn multiple git commands
    ++with a common configuration but cannot depend on a configuration file,
    ++for example when writing scripts.
     +
      
      [[EXAMPLES]]
-- 
2.30.0


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  parent reply index

Thread overview: 116+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-24 10:50 [PATCH v2 0/2] config: allow specifying config entries via envvar pairs Patrick Steinhardt
2020-11-24 10:50 ` [PATCH v2 1/2] config: extract function to parse config pairs Patrick Steinhardt
2020-11-24 10:50 ` [PATCH v2 2/2] config: allow specifying config entries via envvar pairs Patrick Steinhardt
2020-11-25  3:39   ` Junio C Hamano
2020-11-25  7:06     ` Patrick Steinhardt
2020-11-25  7:41       ` Junio C Hamano
2020-11-25  7:57         ` Patrick Steinhardt
2020-11-25  8:47   ` Ævar Arnfjörð Bjarmason
2020-11-25  9:00   ` Ævar Arnfjörð Bjarmason
2020-11-25 19:50     ` Junio C Hamano
2020-11-25 10:41 ` [PATCH v2 0/2] " Jeff King
2020-11-25 13:16   ` Patrick Steinhardt
2020-11-26  0:36     ` Jeff King
2020-11-25 20:28   ` Junio C Hamano
2020-11-25 22:47   ` brian m. carlson
2020-11-26  6:31     ` Patrick Steinhardt
2020-12-01  9:47   ` Patrick Steinhardt
2020-12-01 11:30     ` Jeff King
2020-12-01  9:55 ` [PATCH v3 0/4] " Patrick Steinhardt
2020-12-01  9:55   ` [PATCH v3 1/4] environment: make `getenv_safe()` non-static Patrick Steinhardt
2020-12-01  9:56   ` [PATCH v3 2/4] config: extract function to parse config pairs Patrick Steinhardt
2020-12-01  9:56   ` [PATCH v3 3/4] config: refactor parsing of GIT_CONFIG_PARAMETERS Patrick Steinhardt
2020-12-01  9:56   ` [PATCH v3 4/4] config: allow specifying config entries via envvar pairs Patrick Steinhardt
2020-12-09 11:52 ` [PATCH v4 0/6] config: allow specifying config entries via env Patrick Steinhardt
2020-12-09 11:52   ` [PATCH v4 1/6] git: add `--super-prefix` to usage string Patrick Steinhardt
2020-12-09 11:52   ` [PATCH v4 2/6] config: add new way to pass config via `--config-env` Patrick Steinhardt
2020-12-09 14:40     ` Ævar Arnfjörð Bjarmason
2020-12-09 16:24       ` Jeff King
2020-12-11 13:24         ` Patrick Steinhardt
2020-12-11 14:21           ` Jeff King
2020-12-11 14:54             ` Patrick Steinhardt
2020-12-11 16:10               ` Jeff King
2020-12-09 16:10     ` Jeff King
2020-12-09 16:12       ` [PATCH 1/3] quote: make sq_dequote_step() a public function Jeff King
2020-12-09 16:17       ` [PATCH 2/3] config: parse more robust format in GIT_CONFIG_PARAMETERS Jeff King
2020-12-09 16:20       ` [PATCH 3/3] config: store "git -c" variables using more robust format Jeff King
2020-12-09 16:34         ` Jeff King
2020-12-10 20:55         ` Ævar Arnfjörð Bjarmason
2020-12-10 21:49           ` Junio C Hamano
2020-12-11 13:21           ` Jeff King
2020-12-10  0:00       ` [PATCH v4 2/6] config: add new way to pass config via `--config-env` Junio C Hamano
2020-12-10  0:09         ` Jeff King
2020-12-10  0:57           ` Junio C Hamano
2020-12-11 13:24       ` Patrick Steinhardt
2020-12-11 14:20         ` Jeff King
2020-12-09 11:52   ` [PATCH v4 3/6] environment: make `getenv_safe()` non-static Patrick Steinhardt
2020-12-09 11:52   ` [PATCH v4 4/6] config: extract function to parse config pairs Patrick Steinhardt
2020-12-09 13:12     ` Ævar Arnfjörð Bjarmason
2020-12-09 11:52   ` [PATCH v4 5/6] config: refactor parsing of GIT_CONFIG_PARAMETERS Patrick Steinhardt
2020-12-09 11:52   ` [PATCH v4 6/6] config: allow specifying config entries via envvar pairs Patrick Steinhardt
2020-12-09 15:29   ` [PATCH v4 0/6] config: allow specifying config entries via env Ævar Arnfjörð Bjarmason
2020-12-11 13:35     ` Patrick Steinhardt
2020-12-11 14:27       ` Jeff King
2020-12-11 14:42         ` Jeff King
2020-12-11 14:58           ` Patrick Steinhardt
2020-12-11 14:47         ` Patrick Steinhardt
2020-12-11 15:21           ` Ævar Arnfjörð Bjarmason
2020-12-11 16:02           ` Jeff King
2020-12-16  7:52 ` [PATCH v5 0/8] " Patrick Steinhardt
2020-12-16  7:52   ` [PATCH v5 1/8] git: add `--super-prefix` to usage string Patrick Steinhardt
2020-12-16  7:52   ` [PATCH v5 2/8] config: add new way to pass config via `--config-env` Patrick Steinhardt
2020-12-23 21:35     ` Junio C Hamano
2020-12-16  7:54   ` [PATCH v5 4/8] config: extract function to parse config pairs Patrick Steinhardt
2020-12-16  7:54   ` [PATCH v5 7/8] environment: make `getenv_safe()` a public function Patrick Steinhardt
2020-12-16  7:54   ` [PATCH v5 8/8] config: allow specifying config entries via envvar pairs Patrick Steinhardt
2020-12-23 21:14     ` Junio C Hamano
2020-12-23 21:55       ` Junio C Hamano
2021-01-06 10:28         ` Patrick Steinhardt
2021-01-06 21:07           ` Junio C Hamano
2020-12-16  7:56   ` [PATCH v5 3/8] quote: make sq_dequote_step() a public function Patrick Steinhardt
2020-12-16  7:56   ` [PATCH v5 5/8] config: store "git -c" variables using more robust format Patrick Steinhardt
2020-12-16  7:57   ` [PATCH v5 6/8] config: parse more robust format in GIT_CONFIG_PARAMETERS Patrick Steinhardt
2020-12-16 20:01     ` Phillip Wood
2021-01-07  6:36 ` Patrick Steinhardt [this message]
2021-01-07  6:36   ` [PATCH v6 1/8] git: add `--super-prefix` to usage string Patrick Steinhardt
2021-01-07  6:36   ` [PATCH v6 2/8] config: add new way to pass config via `--config-env` Patrick Steinhardt
2021-01-10 20:29     ` Simon Ruderich
2021-01-11  0:29       ` Junio C Hamano
2021-01-11  8:24         ` Patrick Steinhardt
2021-01-07  6:36   ` [PATCH v6 3/8] quote: make sq_dequote_step() a public function Patrick Steinhardt
2021-01-07  6:37   ` [PATCH v6 4/8] config: extract function to parse config pairs Patrick Steinhardt
2021-01-07  6:37   ` [PATCH v6 5/8] config: store "git -c" variables using more robust format Patrick Steinhardt
2021-01-07  6:37   ` [PATCH v6 6/8] config: parse more robust format in GIT_CONFIG_PARAMETERS Patrick Steinhardt
2021-01-07  6:37   ` [PATCH v6 7/8] environment: make `getenv_safe()` a public function Patrick Steinhardt
2021-01-07  6:37   ` [PATCH v6 8/8] config: allow specifying config entries via envvar pairs Patrick Steinhardt
2021-01-11  8:36 ` [PATCH v7 0/8] " Patrick Steinhardt
2021-01-11  8:36   ` [PATCH v7 1/8] git: add `--super-prefix` to usage string Patrick Steinhardt
2021-01-11  8:36   ` [PATCH v7 2/8] config: add new way to pass config via `--config-env` Patrick Steinhardt
2021-01-11 22:34     ` Junio C Hamano
2021-01-11  8:36   ` [PATCH v7 3/8] quote: make sq_dequote_step() a public function Patrick Steinhardt
2021-01-11  8:36   ` [PATCH v7 4/8] config: extract function to parse config pairs Patrick Steinhardt
2021-01-11  8:37   ` [PATCH v7 5/8] config: store "git -c" variables using more robust format Patrick Steinhardt
2021-01-11  8:37   ` [PATCH v7 6/8] config: parse more robust format in GIT_CONFIG_PARAMETERS Patrick Steinhardt
2021-01-11  8:37   ` [PATCH v7 7/8] environment: make `getenv_safe()` a public function Patrick Steinhardt
2021-01-11  8:37   ` [PATCH v7 8/8] config: allow specifying config entries via envvar pairs Patrick Steinhardt
2021-01-12 12:26 ` [PATCH v8 0/8] " Patrick Steinhardt
2021-01-12 12:26   ` [PATCH v8 1/8] git: add `--super-prefix` to usage string Patrick Steinhardt
2021-01-12 12:26   ` [PATCH v8 2/8] config: add new way to pass config via `--config-env` Patrick Steinhardt
2021-04-16 15:40     ` Ævar Arnfjörð Bjarmason
2021-04-17  8:38       ` Jeff King
2021-04-19 15:28         ` Patrick Steinhardt
2021-04-20 11:01           ` Ævar Arnfjörð Bjarmason
2021-04-20 10:59         ` Ævar Arnfjörð Bjarmason
2021-04-23 10:05           ` Jeff King
2021-05-19 11:36             ` Ævar Arnfjörð Bjarmason
2021-01-12 12:26   ` [PATCH v8 3/8] quote: make sq_dequote_step() a public function Patrick Steinhardt
2021-01-12 12:26   ` [PATCH v8 4/8] config: extract function to parse config pairs Patrick Steinhardt
2021-01-12 12:27   ` [PATCH v8 5/8] config: store "git -c" variables using more robust format Patrick Steinhardt
2021-01-15 19:16     ` Jeff King
2021-01-20  6:29       ` Patrick Steinhardt
2021-01-20  6:55         ` Junio C Hamano
2021-01-20  7:42           ` Patrick Steinhardt
2021-01-20 22:28             ` Junio C Hamano
2021-01-12 12:27   ` [PATCH v8 6/8] config: parse more robust format in GIT_CONFIG_PARAMETERS Patrick Steinhardt
2021-01-12 12:27   ` [PATCH v8 7/8] environment: make `getenv_safe()` a public function Patrick Steinhardt
2021-01-12 12:27   ` [PATCH v8 8/8] config: allow specifying config entries via envvar pairs Patrick Steinhardt

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