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Author SHA1 Message Date
Junio C Hamano
c714f9fd8a Merge branch 'hv/config-from-blob'
Allow configuration data to be read from in-tree blob objects,
which would help working in a bare repository and submodule
updates.

* hv/config-from-blob:
  do not die when error in config parsing of buf occurs
  teach config --blob option to parse config from database
  config: make parsing stack struct independent from actual data source
  config: drop cf validity check in get_next_char()
  config: factor out config file stack management
2013-07-22 11:24:09 -07:00
Heiko Voigt
1bc888193e teach config --blob option to parse config from database
This can be used to read configuration values directly from git's
database. For example it is useful for reading to be checked out
.gitmodules files directly from the database.

Signed-off-by: Heiko Voigt <hvoigt@hvoigt.net>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-12 09:34:57 -07:00
Junio C Hamano
73018c0f0b Merge branch 'mm/color-auto-default'
Flip the default for color.ui to 'auto', which is what many
tutorials recommend new users to do.

* mm/color-auto-default:
  make color.ui default to 'auto'
  config: refactor management of color.ui's default value
2013-06-20 16:02:33 -07:00
Matthieu Moy
4c7f1819b3 make color.ui default to 'auto'
Most users seem to like having colors enabled, and colors can help
beginners to understand the output of some commands (e.g. notice
immediately the boundary between commits in the output of "git log").

Many tutorials tell the users to set color.ui=auto as a very first step,
which tend to indicate that color.ui=none is not the recommanded value,
hence should not be the default.

These tutorials would benefit from skipping this step and starting the
real Git manipulations earlier. Other beginners do not know about
color.ui=auto, and may not discover it by themselves, hence live with
black&white outputs while they may have preferred colors.

A few people (e.g. color-blind) prefer having no colors, but they can
easily set color.ui=never for this (and googling "disable colors in git"
already tells them how to do so), but this needs not occupy space in
beginner-oriented documentations.

A transition period with Git emitting a warning when color.ui is unset
would be possible, but the discomfort of having the warning seems
superior to the benefit: users may be surprised by the change, but not
harmed by it.

The default value is changed, and the documentation is reworded to
mention "color.ui=false" first, since the primary use of color.ui after
this change is to disable colors, not to enable it.

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-10 10:55:42 -07:00
Matthieu Moy
b8612b4da4 config: refactor management of color.ui's default value
The meaning of get_colorbool_found and get_diff_color_found is "the
config value if found, and -1 otherwise", but get_color_ui_found had a
slightly different meaning, as it has the value 0 (which corresponds to
the default value from the user point of view) when color.ui is unset.

Make get_color_ui_found default to -1, and make it explicit that 0 is the
default value when nothing else is found.

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-15 11:02:19 -07:00
Jonathan Nieder
4698c8feb1 config: allow inaccessible configuration under $HOME
The changes v1.7.12.1~2^2~4 (config: warn on inaccessible files,
2012-08-21) and v1.8.1.1~22^2~2 (config: treat user and xdg config
permission problems as errors, 2012-10-13) were intended to prevent
important configuration (think "[transfer] fsckobjects") from being
ignored when the configuration is unintentionally unreadable (for
example with EIO on a flaky filesystem, or with ENOMEM due to a DoS
attack).  Usually ~/.gitconfig and ~/.config/git are readable by the
current user, and if they aren't then it would be easy to fix those
permissions, so the damage from adding this check should have been
minimal.

Unfortunately the access() check often trips when git is being run as
a server.  A daemon (such as inetd or git-daemon) starts as "root",
creates a listening socket, and then drops privileges, meaning that
when git commands are invoked they cannot access $HOME and die with

 fatal: unable to access '/root/.config/git/config': Permission denied

Any patch to fix this would have one of three problems:

  1. We annoy sysadmins who need to take an extra step to handle HOME
     when dropping privileges (the current behavior, or any other
     proposal that they have to opt into).

  2. We annoy sysadmins who want to set HOME when dropping privileges,
     either by making what they want to do impossible, or making them
     set an extra variable or option to accomplish what used to work
     (e.g., a patch to git-daemon to set HOME when --user is passed).

  3. We loosen the check, so some cases which might be noteworthy are
     not caught.

This patch is of type (3).

Treat user and xdg configuration that are inaccessible due to
permissions (EACCES) as though no user configuration was provided at
all.

An alternative method would be to check if $HOME is readable, but that
would not help in cases where the user who dropped privileges had a
globally readable HOME with only .config or .gitconfig being private.

This does not change the behavior when /etc/gitconfig or .git/config
is unreadable (since those are more serious configuration errors),
nor when ~/.gitconfig or ~/.config/git is unreadable due to problems
other than permissions.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Improved-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-15 07:26:50 -07:00
Junio C Hamano
2739889c98 Merge branch 'jk/config-ignore-duplicates'
Drop duplicate detection from "git-config --get"; this lets it
better match the internal config callbacks, which clears up some
corner cases with includes.

* jk/config-ignore-duplicates:
  builtin/config.c: Fix a sparse warning
  git-config: use git_config_with_options
  git-config: do not complain about duplicate entries
  git-config: collect values instead of immediately printing
  git-config: fix regexp memory leaks on error conditions
  git-config: remove memory leak of key regexp
  t1300: test "git config --get-all" more thoroughly
  t1300: remove redundant test
  t1300: style updates
2012-11-21 13:16:44 -08:00
Junio C Hamano
0f76f97676 Merge branch 'cn/config-missing-path'
"git config --path $key" segfaulted on "[section] key" (a boolean
"true" spelled without "=", not "[section] key = true").

* cn/config-missing-path:
  config: don't segfault when given --path with a missing value
2012-11-20 10:40:46 -08:00
Carlos Martín Nieto
962c38eedd config: don't segfault when given --path with a missing value
When given a variable without a value, such as '[section] var' and
asking git-config to treat it as a path, git_config_pathname returns
an error and doesn't modify its output parameter. show_config assumes
that the call is always successful and sets a variable to indicate
that vptr should be freed. In case of an error however, trying to do
this will cause the program to be killed, as it's pointing to memory
in the stack.

Detect the error and return immediately to avoid freeing or accessing
the uninitialed memory in the stack.

Signed-off-by: Carlos Martín Nieto <cmn@elego.de>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-11-15 18:12:17 -08:00
Ramsay Jones
5ba1a8a735 builtin/config.c: Fix a sparse warning
Sparse issues an "Using plain integer as NULL pointer" warning while
checking a 'struct strbuf_list' initializer expression. The initial
field of the struct has pointer type, but the initializer expression
is given as '{0}'. In order to suppress the warning, we simply replace
the initializer with '{NULL}'.

Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Jeff King <peff@peff.net>
2012-10-29 01:48:06 -04:00
Jeff King
e895589883 git-config: use git_config_with_options
The git-config command has always implemented its own file
lookup and parsing order. This was necessary because its
duplicate-entry handling did not match the way git's
internal callbacks worked. Now that this is no longer the
case, we are free to reuse the existing parsing code.

This saves us a few lines of code, but most importantly, it
means that the logic for which files are examined is
contained only in one place and cannot diverge.

Signed-off-by: Jeff King <peff@peff.net>
2012-10-24 03:36:58 -04:00
Jeff King
00b347d3aa git-config: do not complain about duplicate entries
If git-config is asked for a single value, it will complain
and exit with an error if it finds multiple instances of
that value. This is unlike the usual internal config
parsing, however, which will generally overwrite previous
values, leaving only the final one. For example:

  [set a multivar]
  $ git config user.email one@example.com
  $ git config --add user.email two@example.com

  [use the internal parser to fetch it]
  $ git var GIT_AUTHOR_IDENT
  Your Name <two@example.com> ...

  [use git-config to fetch it]
  $ git config user.email
  one@example.com
  error: More than one value for the key user.email: two@example.com

This overwriting behavior is critical for the regular
parser, which starts with the lowest-priority file (e.g.,
/etc/gitconfig) and proceeds to the highest-priority file
($GIT_DIR/config). Overwriting yields the highest priority
value at the end.

Git-config solves this problem by implementing its own
parsing. It goes from highest to lowest priorty, but does
not proceed to the next file if it has seen a value.

So in practice, this distinction never mattered much,
because it only triggered for values in the same file. And
there was not much point in doing that; the real value is in
overwriting values from lower-priority files.

However, this changed with the implementation of config
include files. Now we might see an include overriding a
value from the parent file, which is a sensible thing to do,
but git-config will flag as a duplication.

This patch drops the duplicate detection for git-config and
switches to a pure-overwrite model (for the single case;
--get-all can still be used if callers want to do something
more fancy).

As is shown by the modifications to the test suite, this is
a user-visible change in behavior. An alternative would be
to just change the include case, but this is much cleaner
for a few reasons:

  1. If you change the include case, then to what? If you
     just stop parsing includes after getting a value, then
     you will get a _different_ answer than the regular
     config parser (you'll get the first value instead of
     the last value). So you'd want to implement overwrite
     semantics anyway.

  2. Even though it is a change in behavior for git-config,
     it is bringing us in line with what the internal
     parsers already do.

  3. The file-order reimplementation is the only thing
     keeping us from sharing more code with the internal
     config parser, which will help keep differences to a
     minimum.

Going under the assumption that the primary purpose of
git-config is to behave identically to how git's internal
parsing works, this change can be seen as a bug-fix.

Signed-off-by: Jeff King <peff@peff.net>
2012-10-24 03:36:55 -04:00
Jeff King
7acdd6f0bc git-config: collect values instead of immediately printing
This is a refactor that will allow us to more easily tweak
the behavior for multi-valued variables, and it will
ultimately allow us to remove a lot git-config's custom code
in favor of the regular git_config code.

It does mean we're no longer streaming, and we're storing
more in memory for the --get-all case, but in practice it is
a tiny amount of data, and the results are instantaneous.

Signed-off-by: Jeff King <peff@peff.net>
2012-10-24 03:36:54 -04:00
Jeff King
97ed50f93b git-config: fix regexp memory leaks on error conditions
The get_value function has a goto label for cleaning up on
errors, but it only cleans up half of what the function
might allocate. Let's also clean up the key and regexp
variables there.

Note that we need to take special care when compiling the
regex fails to clean it up ourselves, since it is in a
half-constructed state (we would want to free it, but not
regfree it).

Similarly, we fix git_config_parse_key to return NULL when
it fails, not a pointer to some already-freed memory.

Signed-off-by: Jeff King <peff@peff.net>
2012-10-24 03:36:54 -04:00
Jeff King
35998c8938 git-config: remove memory leak of key regexp
This is only called once per invocation, so it's not a major
leak, but it's easy to fix.

Signed-off-by: Jeff King <peff@peff.net>
2012-10-24 03:36:53 -04:00
Junio C Hamano
096bbd6537 Merge branch 'nd/i18n-parseopt-help'
A lot of i18n mark-up for the help text from "git <cmd> -h".

* nd/i18n-parseopt-help: (66 commits)
  Use imperative form in help usage to describe an action
  Reduce translations by using same terminologies
  i18n: write-tree: mark parseopt strings for translation
  i18n: verify-tag: mark parseopt strings for translation
  i18n: verify-pack: mark parseopt strings for translation
  i18n: update-server-info: mark parseopt strings for translation
  i18n: update-ref: mark parseopt strings for translation
  i18n: update-index: mark parseopt strings for translation
  i18n: tag: mark parseopt strings for translation
  i18n: symbolic-ref: mark parseopt strings for translation
  i18n: show-ref: mark parseopt strings for translation
  i18n: show-branch: mark parseopt strings for translation
  i18n: shortlog: mark parseopt strings for translation
  i18n: rm: mark parseopt strings for translation
  i18n: revert, cherry-pick: mark parseopt strings for translation
  i18n: rev-parse: mark parseopt strings for translation
  i18n: reset: mark parseopt strings for translation
  i18n: rerere: mark parseopt strings for translation
  i18n: status: mark parseopt strings for translation
  i18n: replace: mark parseopt strings for translation
  ...
2012-09-07 11:09:09 -07:00
Junio C Hamano
7fe136d78f Merge branch 'jk/config-warn-on-inaccessible-paths'
When looking for $HOME/.gitconfig etc., it is OK if we cannot read
them because they do not exist, but we did not diagnose existing
files that we cannot read.

* jk/config-warn-on-inaccessible-paths:
  warn_on_inaccessible(): a helper to warn on inaccessible paths
  attr: warn on inaccessible attribute files
  gitignore: report access errors of exclude files
  config: warn on inaccessible files
2012-09-07 11:08:56 -07:00
Junio C Hamano
3e06f5ff38 Merge branch 'jc/maint-config-exit-status'
The exit status code from "git config" was way overspecified while
being incorrect.  Update the implementation to give the documented
status for a case that was documented, and introduce a new code for
"all other errors".

* jc/maint-config-exit-status:
  config: "git config baa" should exit with status 1
2012-09-03 15:53:07 -07:00
Nguyễn Thái Ngọc Duy
f63cf8c9fb Use imperative form in help usage to describe an action
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-22 12:02:28 -07:00
Jeff King
ba8bd8300a config: warn on inaccessible files
Before reading a config file, we check "!access(path, R_OK)"
to make sure that the file exists and is readable. If it's
not, then we silently ignore it.

For the case of ENOENT, this is fine, as the presence of the
file is optional. For other cases, though, it may indicate a
configuration error (e.g., not having permissions to read
the file). Let's print a warning in these cases to let the
user know.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-21 14:46:11 -07:00
Nguyễn Thái Ngọc Duy
1bd31ce691 i18n: config: mark parseopt strings for translation
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-20 12:23:16 -07:00
Junio C Hamano
9409c7a5b3 config: "git config baa" should exit with status 1
We instead failed with an undocumented exit status 255.
Also define a "catch-all" status and document it.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-07-30 08:51:26 -07:00
Matthieu Moy
e3ebc35b16 config: fix several access(NULL) calls
When $HOME is unset, home_config_paths fails and returns NULL pointers
for user_config and xdg_config. Valgrind complains with Syscall param
access(pathname) points to unaddressable byte(s).

Don't call blindly access() on these variables, but test them for
NULL-ness before.

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-07-16 09:59:06 -07:00
Huynh Khoi Nguyen Nguyen
0e8593dc5b config: write to $XDG_CONFIG_HOME/git/config file when appropriate
Teach git to write to $XDG_CONFIG_HOME/git/config if

 - it already exists,
 - $HOME/.gitconfig file doesn't, and
 - The --global option is used.

Otherwise, write to $HOME/.gitconfig when the --global option is
given, as before.

If the user doesn't create $XDG_CONFIG_HOME/git/config, there is
absolutely no change. Users can use this new file only if they want.

If $XDG_CONFIG_HOME is either not set or empty, $HOME/.config/git/config
will be used.

Advice for users who often come back to an old version of Git: you
shouldn't create this file.

Signed-off-by: Huynh Khoi Nguyen Nguyen <Huynh-Khoi-Nguyen.Nguyen@ensimag.imag.fr>
Signed-off-by: Valentin Duperray <Valentin.Duperray@ensimag.imag.fr>
Signed-off-by: Franck Jonas <Franck.Jonas@ensimag.imag.fr>
Signed-off-by: Lucien Kong <Lucien.Kong@ensimag.imag.fr>
Signed-off-by: Thomas Nguy <Thomas.Nguy@ensimag.imag.fr>
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-06-25 09:06:15 -07:00
Huynh Khoi Nguyen Nguyen
21cf322791 config: read (but not write) from $XDG_CONFIG_HOME/git/config file
Teach git to read the "gitconfig" information from a new location,
$XDG_CONFIG_HOME/git/config; this allows the user to avoid
cluttering $HOME with many per-application configuration files.

In the order of reading, this file comes between the global
configuration file (typically $HOME/.gitconfig) and the system wide
configuration file (typically /etc/gitconfig).

We do not write to this new location (yet).

If $XDG_CONFIG_HOME is either not set or empty, $HOME/.config/git/config
will be used. This is in line with XDG specification.

If the new file does not exist, the behavior is unchanged.

Signed-off-by: Huynh Khoi Nguyen Nguyen <Huynh-Khoi-Nguyen.Nguyen@ensimag.imag.fr>
Signed-off-by: Valentin Duperray <Valentin.Duperray@ensimag.imag.fr>
Signed-off-by: Franck Jonas <Franck.Jonas@ensimag.imag.fr>
Signed-off-by: Lucien Kong <Lucien.Kong@ensimag.imag.fr>
Signed-off-by: Thomas Nguy <Thomas.Nguy@ensimag.imag.fr>
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-06-25 09:05:55 -07:00
René Scharfe
b3065bdc03 config: remove useless assignment
v1.7.9-8-g270a344 (config: stop using config_exclusive_filename) replaced
config_exclusive_filename with given_config_file.  In one case this
resulted in a self-assignment, which is reported by clang as a warning.
Remove the useless code.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-03-28 15:19:17 -07:00
Jeff King
9b25a0b52e config: add include directive
It can be useful to split your ~/.gitconfig across multiple
files. For example, you might have a "main" file which is
used on many machines, but a small set of per-machine
tweaks. Or you may want to make some of your config public
(e.g., clever aliases) while keeping other data back (e.g.,
your name or other identifying information). Or you may want
to include a number of config options in some subset of your
repos without copying and pasting (e.g., you want to
reference them from the .git/config of participating repos).

This patch introduces an include directive for config files.
It looks like:

  [include]
    path = /path/to/file

This is syntactically backwards-compatible with existing git
config parsers (i.e., they will see it as another config
entry and ignore it unless you are looking up include.path).

The implementation provides a "git_config_include" callback
which wraps regular config callbacks. Callers can pass it to
git_config_from_file, and it will transparently follow any
include directives, passing all of the discovered options to
the real callback.

Include directives are turned on automatically for "regular"
git config parsing. This includes calls to git_config, as
well as calls to the "git config" program that do not
specify a single file (e.g., using "-f", "--global", etc).
They are not turned on in other cases, including:

  1. Parsing of other config-like files, like .gitmodules.
     There isn't a real need, and I'd rather be conservative
     and avoid unnecessary incompatibility or confusion.

  2. Reading single files via "git config". This is for two
     reasons:

       a. backwards compatibility with scripts looking at
          config-like files.

       b. inspection of a specific file probably means you
	  care about just what's in that file, not a general
          lookup for "do we have this value anywhere at
	  all". If that is not the case, the caller can
	  always specify "--includes".

  3. Writing files via "git config"; we want to treat
     include.* variables as literal items to be copied (or
     modified), and not expand them. So "git config
     --unset-all foo.bar" would operate _only_ on
     .git/config, not any of its included files (just as it
     also does not operate on ~/.gitconfig).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-17 07:59:55 -08:00
Jeff King
270a34438b config: stop using config_exclusive_filename
The git-config command sometimes operates on the default set
of config files (either reading from all, or writing to repo
config), and sometimes operates on a specific file. In the
latter case, we set the magic global config_exclusive_filename,
and the code in config.c does the right thing.

Instead, let's have git-config use the "advanced" variants
of config.c's functions which let it specify an individual
filename (or NULL for the default). This makes the code a
lot more obvious, and fixes two small bugs:

  1. A relative path specified by GIT_CONFIG=foo will look
     in the wrong directory if we have to chdir as part of
     repository setup. We already handle this properly for
     "git config -f foo", but the GIT_CONFIG lookup used
     config_exclusive_filename directly. By dropping to a
     single magic variable, the GIT_CONFIG case now just
     works.

  2. Calling "git config -f foo --edit" would not respect
     core.editor. This is because just before editing, we
     called git_config, which would respect the
     config_exclusive_filename setting, even though this
     particular git_config call was not about looking in the
     user's specified file, but rather about loading actual
     git config, just as any other git program would.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-17 07:58:54 -08:00
Jeff King
839de25272 config: copy the return value of prefix_filename
The prefix_filename function returns a pointer to a static
buffer which may be overwritten by subsequent calls. Since
we are going to keep the result around for a while, let's be
sure to duplicate it for safety.

I don't think this can be triggered as a bug in the current
code, but it's a good idea to be defensive, as any resulting
bug would be quite subtle.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-17 07:52:41 -08:00
Junio C Hamano
9a8e485430 Merge branch 'jv/maint-config-set' into maint
* jv/maint-config-set:
  Fix an incorrect reference to --set-all.
2011-12-28 12:03:19 -08:00
Jelmer Vernooij
67e223edc4 Fix an incorrect reference to --set-all.
Signed-off-by: Jelmer Vernooij <jelmer@samba.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-12-27 11:14:18 -08:00
Junio C Hamano
e22bb14d80 Merge branch 'mm/maint-config-explicit-bool-display'
* mm/maint-config-explicit-bool-display:
  config: display key_delim for config --bool --get-regexp
2011-10-17 21:37:12 -07:00
Matthieu Moy
008e3cc5d7 config: display key_delim for config --bool --get-regexp
The previous logic in show_config was to print the delimiter when the
value was set, but Boolean variables have an implicit value "true" when
they appear with no value in the config file. As a result, we got:

git_Config        --get-regexp '.*\.Boolean'	#1. Ok: example.boolean
git_Config --bool --get-regexp '.*\.Boolean'	#2. NO: example.booleantrue

Fix this by defering the display of the separator until after the value
to display has been computed.

Reported-by: Brian Foster <brian.foster@maxim-ic.com>
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-10 12:34:44 -07:00
Jeff King
c659f55b31 config: refactor get_colorbool function
For "git config --get-colorbool color.foo", we use a custom
callback that looks not only for the key that the user gave
us, but also for "diff.color" (for backwards compatibility)
and "color.ui" (as a fallback).

For the former, we use a custom variable to store the
diff.color value. For the latter, though, we store it in the
main "git_use_color_default" variable, turning on color.ui
for any other parts of git that respect this value.

In practice, this doesn't cause any bugs, because git-config
runs without caring about git_use_color_default, and then
exits. But it crosses module boundaries in an unusual and
confusing way, and it makes refactoring color handling
harder than it needs to be.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-19 15:51:37 -07:00
Jeff King
daa0c3d971 color: delay auto-color decision until point of use
When we read a color value either from a config file or from
the command line, we use git_config_colorbool to convert it
from the tristate always/never/auto into a single yes/no
boolean value.

This has some timing implications with respect to starting
a pager.

If we start (or decide not to start) the pager before
checking the colorbool, everything is fine. Either isatty(1)
will give us the right information, or we will properly
check for pager_in_use().

However, if we decide to start a pager after we have checked
the colorbool, things are not so simple. If stdout is a tty,
then we will have already decided to use color. However, the
user may also have configured color.pager not to use color
with the pager. In this case, we need to actually turn off
color. Unfortunately, the pager code has no idea which color
variables were turned on (and there are many of them
throughout the code, and they may even have been manipulated
after the colorbool selection by something like "--color" on
the command line).

This bug can be seen any time a pager is started after
config and command line options are checked. This has
affected "git diff" since 89d07f7 (diff: don't run pager if
user asked for a diff style exit code, 2007-08-12). It has
also affect the log family since 1fda91b (Fix 'git log'
early pager startup error case, 2010-08-24).

This patch splits the notion of parsing a colorbool and
actually checking the configuration. The "use_color"
variables now have an additional possible value,
GIT_COLOR_AUTO. Users of the variable should use the new
"want_color()" wrapper, which will lazily determine and
cache the auto-color decision.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-19 15:51:34 -07:00
Jeff King
e269eb7946 git_config_colorbool: refactor stdout_is_tty handling
Usually this function figures out for itself whether stdout
is a tty. However, it has an extra parameter just to allow
git-config to override the auto-detection for its
--get-colorbool option.

Instead of an extra parameter, let's just use a global
variable. This makes calling easier in the common case, and
will make refactoring the colorbool code much simpler.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-18 14:48:29 -07:00
Michael J Gruber
5a2df368c2 config: Give error message when not changing a multivar
When trying to set a multivar with "git config var value", "git config"
issues

warning: remote.repoor.push has multiple values

leaving the user under the impression that the operation succeeded,
unless one checks the return value.

Instead, make it

warning: remote.repoor.push has multiple values
error: cannot overwrite multiple values with a single value
       Use a regexp, --add or --set-all to change remote.repoor.push.

to be clear and helpful.

Note: The "warning" is raised through other code paths also so that it
needs to remain a warning for these (which do not raise the error). Only
the caller can determine how to go on from that.

Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-17 21:01:29 -07:00
Jonathan Nieder
8f323c00dd config: drop support for GIT_CONFIG_NOGLOBAL
Now that test-lib sets $HOME to protect against pollution from user
settings, GIT_CONFIG_NOGLOBAL is not needed for use by the test
suite any more.  And as luck would have it, a quick code search
reveals no other users in the wild.

This patch does not affect GIT_CONFIG_NOSYSTEM, which is still
needed.

Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-15 12:23:30 -07:00
Junio C Hamano
fbfeeaf294 Merge branch 'lp/config-vername-check'
* lp/config-vername-check:
  Disallow empty section and variable names
  Sanity-check config variable names
2011-02-27 21:58:31 -08:00
Junio C Hamano
ecd75ddb6f Merge branch 'mg/placeholders-are-lowercase'
* mg/placeholders-are-lowercase:
  Make <identifier> lowercase in Documentation
  Make <identifier> lowercase as per CodingGuidelines
  Make <identifier> lowercase as per CodingGuidelines
  Make <identifier> lowercase as per CodingGuidelines
  CodingGuidelines: downcase placeholders in usage messages
2011-02-27 21:58:30 -08:00
Libor Pechacek
b09c53a3e3 Sanity-check config variable names
Sanity-check config variable names when adding and retrieving them.  As a side
effect code duplication between git_config_set_multivar and get_value (in
builtin/config.c) was removed and the common functionality was placed in
git_config_parse_key.

This breaks a test in t1300 which used invalid section-less keys in the tests
for "git -c". However, allowing such names there was useless, since there was
no way to set them via config file, and no part of git actually tried to use
section-less keys. This patch updates the test to use more realistic examples
as well as adding its own test.

Signed-off-by: Libor Pechacek <lpechacek@suse.cz>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-22 15:19:45 -08:00
Michael J Gruber
23c6a803d3 Make <identifier> lowercase as per CodingGuidelines
*.c part for matches with '"[A-Z]+"'.

Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-15 11:53:10 -08:00
René Scharfe
6390c905dc repo-config: add deprecation warning
repo-config was deprecated in 5c66d0d4 on 2008-01-17.  Warn the
remaining users that it has been replaced by config and is going to
be removed eventually.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-13 15:13:41 -08:00
Junio C Hamano
633142d868 Merge branch 'jn/paginate-fix'
* jn/paginate-fix:
  t7006 (pager): add missing TTY prerequisites
  merge-file: run setup_git_directory_gently() sooner
  var: run setup_git_directory_gently() sooner
  ls-remote: run setup_git_directory_gently() sooner
  index-pack: run setup_git_directory_gently() sooner
  config: run setup_git_directory_gently() sooner
  bundle: run setup_git_directory_gently() sooner
  apply: run setup_git_directory_gently() sooner
  grep: run setup_git_directory_gently() sooner
  shortlog: run setup_git_directory_gently() sooner
  git wrapper: allow setup_git_directory_gently() be called earlier
  setup: remember whether repository was found
  git wrapper: introduce startup_info struct

Conflicts:
	builtin/index-pack.c
2010-08-31 16:23:31 -07:00
Nguyễn Thái Ngọc Duy
3ba7e6e29a config: run setup_git_directory_gently() sooner
For the pager choice (and the choice to paginate) to reflect the
current repository configuration, the repository needs to be
located first.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-08-15 19:57:41 -07:00
Sverre Rabbelier
57210a678a config: add --local option
This is a shorthand similar to --system but instead uses
the config file of the current repository.

Signed-off-by: Sverre Rabbelier <srabbelier@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-08-04 12:01:10 -07:00
Alex Riesen
8b1fa77867 Allow passing of configuration parameters in the command line
The values passed this way will override whatever is defined
in the config files.

Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-03-28 09:48:25 -07:00
Linus Torvalds
81b50f3ce4 Move 'builtin-*' into a 'builtin/' subdirectory
This shrinks the top-level directory a bit, and makes it much more
pleasant to use auto-completion on the thing. Instead of

	[torvalds@nehalem git]$ em buil<tab>
	Display all 180 possibilities? (y or n)
	[torvalds@nehalem git]$ em builtin-sh
	builtin-shortlog.c     builtin-show-branch.c  builtin-show-ref.c
	builtin-shortlog.o     builtin-show-branch.o  builtin-show-ref.o
	[torvalds@nehalem git]$ em builtin-shor<tab>
	builtin-shortlog.c  builtin-shortlog.o
	[torvalds@nehalem git]$ em builtin-shortlog.c

you get

	[torvalds@nehalem git]$ em buil<tab>		[type]
	builtin/   builtin.h
	[torvalds@nehalem git]$ em builtin		[auto-completes to]
	[torvalds@nehalem git]$ em builtin/sh<tab>	[type]
	shortlog.c     shortlog.o     show-branch.c  show-branch.o  show-ref.c     show-ref.o
	[torvalds@nehalem git]$ em builtin/sho		[auto-completes to]
	[torvalds@nehalem git]$ em builtin/shor<tab>	[type]
	shortlog.c  shortlog.o
	[torvalds@nehalem git]$ em builtin/shortlog.c

which doesn't seem all that different, but not having that annoying
break in "Display all 180 possibilities?" is quite a relief.

NOTE! If you do this in a clean tree (no object files etc), or using an
editor that has auto-completion rules that ignores '*.o' files, you
won't see that annoying 'Display all 180 possibilities?' message - it
will just show the choices instead.  I think bash has some cut-off
around 100 choices or something.

So the reason I see this is that I'm using an odd editory, and thus
don't have the rules to cut down on auto-completion.  But you can
simulate that by using 'ls' instead, or something similar.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-22 14:29:41 -08:00
Renamed from builtin-config.c (Browse further)