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The use of "git config get" command to learn how ANSI color
sequence is for a particular type, e.g., "git config get
--type=color --default=reset no.such.thing", isn't very ergonomic.
* ps/config-get-color-fixes:
builtin/config: do not spawn pager when printing color codes
builtin/config: special-case retrieving colors without a key
builtin/config: do not die in `get_color()`
t1300: small style fixups
t1300: write test expectations in the test's body
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With `git config get --type=color` the user asks us to parse a specific
configuration key and turn the value into an ANSI color escape sequence.
The printed string can then for example be used as part of shell scripts
to reuse the same colors as Git.
Right now though we set up the auto-pager, which means that the string
may be written to the pager instead of directly to the terminal. This
behaviour is problematic for two reasons:
- Color codes are meant for direct terminal output; writing them into
a pager does not seem like a sensible thing to do without additional
text.
- It is inconsistent with `git config --get-color`, which never uses a
pager, despite the fact that we claim `git config get --type=color`
to be a drop-in replacement in git-config(1).
Fix this by disabling the pager when outputting color sequences.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Our documentation for git-config(1) has a section where it explains how
to parse and use colors as Git would configure them. In order to get the
ANSI color escape sequence to reset the colors to normal we recommend
the following command:
$ git config get --type=color --default="reset" ""
This command is not supposed to parse any configuration keys. Instead,
it is expected to parse the "reset" default value and turn it into a
proper ANSI color escape sequence.
It was reported though [1] that this command doesn't work:
$ git config get --type=color --default="reset" ""
error: key does not contain a section:
This error was introduced in 4e51389000 (builtin/config: introduce "get"
subcommand, 2024-05-06), where we introduced the "get" subcommand to
retrieve configuration values. The preimage of that commit used `git
config --get-color "" "reset"` instead, which still works.
This use case is really quite specific to parsing colors, as it wouldn't
make sense to give git-config(1) a default value and an empty config key
only to return that default value unmodified. But with `--type=color` we
don't return the value directly; we instead parse the value into an ANSI
escape sequence.
As such, we can easily special-case this one use case:
- If the provided config key is empty;
- the user is asking for a color code; and
- the user has provided a default value,
then we call `get_color()` directly. Do so to make the documented
command work as expected.
[1]: <aI+oQvQgnNtC6DVw@szeder.dev>
Reported-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When trying to parse an invalid color via `get_color()` we die. We're
about to introduce another caller in a subsequent commit though that has
its own error handling, so dying is a bit drastic there. Furthermore,
the only caller that we already have right now already knows to handle
errors in other branches that don't call `get_color()`.
Convert the function to instead return an error code to improve its
flexibility.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The "git config --get-colorbool foo.bar" command not only digs in the
config to find the value of foo.bar, it evaluates the result using
want_color() to check the tty-ness of stdout.
But it stores the bool result of want_color() in the same git_colorbool
that we found in the config. This works in practice because the
git_colorbool enum is a superset of the bool values. But it is an oddity
from a type system perspective.
Let's instead store the result in a separate bool and use that.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We traditionally used "int" to store and pass around the values defined
by "enum git_colorbool" (which were originally just #define macros).
Using an int doesn't produce incorrect results, but using the actual
enum makes the intent of the code more clear.
It would be nice if the compiler could catch cases where we used the
enum and an int interchangeably, since it's very easy to accidentally
check the boolean true/false of a colorbool like:
if (branch_use_color)
This is wrong because GIT_COLOR_UNKNOWN and GIT_COLOR_AUTO evaluate to
true in C, even though we may ultimately decide not to use color. But C
is pretty happy to convert between ints and enums (even with various
-Wenum-* warnings). So this sadly doesn't protect us from such mistakes,
but it hopefully does make the code easier to read.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Long ago Git's decision to show color for a subsytem was stored in a
tri-state variable: it could be true (1), false (0), or unknown (-1).
But since daa0c3d971 (color: delay auto-color decision until point of
use, 2011-08-17) we want to carry around a new state, "auto", which
bases the decision on the tty-ness of stdout (rather than collapsing
that "auto" state to a true/false immediately).
That commit introduced a set of GIT_COLOR_* defines to represent each
state: UNKNOWN, ALWAYS, NEVER, and AUTO. But it only used the AUTO
value, and left alone code using bare 0/1/-1 values. And of course since
then we've grown many new spots that use those bare values.
Let's switch all of these to use the named constants. That should make
the code a bit easier to read, as it is more obvious that we're
representing a color decision.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In 036876a1067 (config: hide functions using `the_repository` by
default, 2024-08-13) we have moved around a bunch of functions in the
config subsystem that depend on `the_repository`. Those function have
been converted into mere wrappers around their equivalent function that
takes in a repository as parameter, and the intent was that we'll
eventually remove those wrappers to make the dependency on the global
repository variable explicit at the callsite.
Follow through with that intent and remove
`git_config_set_multivar_in_file_gently()`. All callsites are adjusted
so that they use
`repo_config_set_multivar_in_file_gently(the_repository, ...)` instead.
While some callsites might already have a repository available, this
mechanical conversion is the exact same as the current situation and
thus cannot cause any regression. Those sites should eventually be
cleaned up in a later patch series.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In 036876a1067 (config: hide functions using `the_repository` by
default, 2024-08-13) we have moved around a bunch of functions in the
config subsystem that depend on `the_repository`. Those function have
been converted into mere wrappers around their equivalent function that
takes in a repository as parameter, and the intent was that we'll
eventually remove those wrappers to make the dependency on the global
repository variable explicit at the callsite.
Follow through with that intent and remove
`git_config_set_in_file_gently()`. All callsites are adjusted so that
they use `repo_config_set_in_file_gently(the_repository, ...)` instead.
While some callsites might already have a repository available, this
mechanical conversion is the exact same as the current situation and
thus cannot cause any regression. Those sites should eventually be
cleaned up in a later patch series.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In 036876a1067 (config: hide functions using `the_repository` by
default, 2024-08-13) we have moved around a bunch of functions in the
config subsystem that depend on `the_repository`. Those function have
been converted into mere wrappers around their equivalent function that
takes in a repository as parameter, and the intent was that we'll
eventually remove those wrappers to make the dependency on the global
repository variable explicit at the callsite.
Follow through with that intent and remove `git_config()`. All callsites
are adjusted so that they use `repo_config(the_repository, ...)`
instead. While some callsites might already have a repository available,
this mechanical conversion is the exact same as the current situation
and thus cannot cause any regression. Those sites should eventually be
cleaned up in a later patch series.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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4e513890008 (builtin/config: introduce "get" subcommand, 2024-05-06)
introduced `get` and `--url` but didn’t add `--url` to the synopsis.
Acked-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Kristoffer Haugsbakk <code@khaugsbakk.name>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This option was introduced in a series of commits from fe3ccc7aab (Merge
branch 'ps/config-subcommands', 2024-05-15). But two styles were used
for the value provided to the option:
1. Synopsis: `--value=<value>`
2. Deprecated Modes: `--value=<pattern>`
(2) is also used in the synopsis on the command.
Use (2) consistently throughout since it’s a pattern in the general
case (`value` sounds more generic).
Acked-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Kristoffer Haugsbakk <code@khaugsbakk.name>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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While we expose macros for most of our different option types understood
by the "parse-options" subsystem, not every combination of fields that
has one as that would otherwise quickly lead to an explosion of macros.
Instead, we just initialize structures manually for those variants of
fields that don't have a macro.
Callsites that open-code these structure initialization don't use
designated initializers though and instead just provide values for each
of the fields that they want to initialize. This has three significant
downsides:
- Callsites need to specify all values up to the last field that they
care about. This often includes fields that should simply be left at
their default zero-initialized state, which adds distraction.
- Any reader not deeply familiar with the layout of the structure
has a hard time figuring out what the respective initializers mean.
- Reordering or introducing new fields in the middle of the structure
is impossible without adapting all callsites.
Convert all sites to instead use designated initializers, which we have
started using in our codebase quite a while ago. This allows us to skip
any default-initialized fields, gives the reader context by specifying
the field names and allows us to reorder or introduce new fields where
we want to.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Remove `git_pathdup()` in favor of `repo_git_path()`. The latter does
essentially the same, with the only exception that it does not rely on
`the_repository` but takes the repo as separate parameter.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In 9b1cb5070f (builtin: add a repository parameter for builtin
functions, 2024-09-13) the repository was passed down to all builtin
commands. This allowed the repository to be passed down to lower layers
without depending on the global `the_repository` variable.
Continue this work by also passing down the repository parameter from
the command to sub-commands. This will help pass down the repository to
other subsystems and cleanup usage of global variables like
'the_repository' and 'the_hash_algo'.
Signed-off-by: Karthik Nayak <karthik.188@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The synopsis for `git config unset` mentions two positional arguments:
`<name>` and `<value>`. While the first argument is correct, the second
is not. Users are expected to provide the value via `--value=<value>`.
Remove the positional argument. The `--value=<value>` option is already
documented correctly, so this is all we need to do to fix the
documentation.
Signed-off-by: Josh Heinrichs <joshiheinrichs@gmail.com>
Reviewed-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The convention to calling into built-in command implementation has
been updated to pass the repository, if known, together with the
prefix value.
* jc/pass-repo-to-builtins:
add: pass in repo variable instead of global the_repository
builtin: remove USE_THE_REPOSITORY for those without the_repository
builtin: remove USE_THE_REPOSITORY_VARIABLE from builtin.h
builtin: add a repository parameter for builtin functions
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Code clean-up.
* ps/environ-wo-the-repository: (21 commits)
environment: stop storing "core.notesRef" globally
environment: stop storing "core.warnAmbiguousRefs" globally
environment: stop storing "core.preferSymlinkRefs" globally
environment: stop storing "core.logAllRefUpdates" globally
refs: stop modifying global `log_all_ref_updates` variable
branch: stop modifying `log_all_ref_updates` variable
repo-settings: track defaults close to `struct repo_settings`
repo-settings: split out declarations into a standalone header
environment: guard state depending on a repository
environment: reorder header to split out `the_repository`-free section
environment: move `set_git_dir()` and related into setup layer
environment: make `get_git_namespace()` self-contained
environment: move object database functions into object layer
config: make dependency on repo in `read_early_config()` explicit
config: document `read_early_config()` and `read_very_early_config()`
environment: make `get_git_work_tree()` accept a repository
environment: make `get_graft_file()` accept a repository
environment: make `get_index_file()` accept a repository
environment: make `get_object_directory()` accept a repository
environment: make `get_git_common_dir()` accept a repository
...
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Instead of including USE_THE_REPOSITORY_VARIABLE by default on every
builtin, remove it from builtin.h and add it to all the builtins that
include builtin.h (by definition, that means all builtins/*.c).
Also, remove the include statement for repository.h since it gets
brought in through builtin.h.
The next step will be to migrate each builtin
from having to use the_repository.
Signed-off-by: John Cai <johncai86@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In order to reduce the usage of the global the_repository, add a
parameter to builtin functions that will get passed a repository
variable.
This commit uses UNUSED on most of the builtin functions, as subsequent
commits will modify the actual builtins to pass the repository parameter
down.
Signed-off-by: John Cai <johncai86@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The `get_git_common_dir()` function retrieves the path to the common
directory for `the_repository`. Make it accept a `struct repository`
such that it can work on arbitrary repositories and make it part of the
repository subsystem. This reduces our reliance on `the_repository` and
clarifies scope.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The `get_git_dir()` function retrieves the path to the Git directory for
`the_repository`. Make it accept a `struct repository` such that it can
work on arbitrary repositories and make it part of the repository
subsystem. This reduces our reliance on `the_repository` and clarifies
scope.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Docfix.
* jc/config-doc-update:
git-config.1: fix description of --regexp in synopsis
git-config.1: --get-all description update
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The synopsis says --regexp=<regexp> but the --regexp option is a
Boolean that says "the name given is not literal, but a pattern to
match the name".
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Refactor functions that rename or copy config sections to accept a
`struct repository` such that we can get rid of the implicit dependency
on `the_repository`. Rename the functions accordingly.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Leakfixes.
* ps/leakfixes:
builtin/mv: fix leaks for submodule gitfile paths
builtin/mv: refactor to use `struct strvec`
builtin/mv duplicate string list memory
builtin/mv: refactor `add_slash()` to always return allocated strings
strvec: add functions to replace and remove strings
submodule: fix leaking memory for submodule entries
commit-reach: fix memory leak in `ahead_behind()`
builtin/credential: clear credential before exit
config: plug various memory leaks
config: clarify memory ownership in `git_config_string()`
builtin/log: stop using globals for format config
builtin/log: stop using globals for log config
convert: refactor code to clarify ownership of check_roundtrip_encoding
diff: refactor code to clarify memory ownership of prefixes
config: clarify memory ownership in `git_config_pathname()`
http: refactor code to clarify memory ownership
checkout: clarify memory ownership in `unique_tracking_name()`
strbuf: fix leak when `appendwholeline()` fails with EOF
transport-helper: fix leaking helper name
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The out parameter of `git_config_pathname()` is a `const char **` even
though we transfer ownership of memory to the caller. This is quite
misleading and has led to many memory leaks all over the place. Adapt
the parameter to instead be `char **`.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We use several global variables to pass data between callers and
callbacks in `get_color()` and `get_colorbool()`. Convert those to use
callback data structures instead.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Both the `do_all` and `use_key_regexp` bits essentially act like flags
to `get_value()`. Let's convert them to actual flags so that we can get
rid of the last two remaining global variables that track options.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We track the "fixed value" option via two separate bits: once via the
global variable `fixed_value`, and once via the CONFIG_FLAGS_FIXED_VALUE
bit in `flags`. This is confusing and may easily lead to issues when one
is not aware that this is tracked via two separate mechanisms.
Refactor the code to use the flag exclusively. We already pass it to all
the required callsites anyway, except for `collect_config()`.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The `key` variable is used by the `get_value()` function for two
purposes:
- It is used to store the result of `git_config_parse_key()`, which is
then passed on to `collect_config()`.
- It is used as a store to convert the provided key to an
all-lowercase key when `use_key_regexp` is set.
Neither of these cases warrant a global variable at all. In the former
case we can pass the key via `struct collect_config_data`. And in the
latter case we really only want to have it as a temporary local variable
such that we can free associated memory.
Refactor the code accordingly to reduce our reliance on global state.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The `key_regexp` variable is used by the `format_config()` callback when
`use_key_regexp` is set. It is only ever set up by its only caller,
`collect_config()` and can thus easily be moved into the
`collect_config_data` structure.
Do so to remove our reliance on global state.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The `regexp` variable is used by the `format_config()` callback when
`CONFIG_FLAGS_FIXED_VALUE` is not set. It is only ever set up by its
only caller, `collect_config()` and can thus easily be moved into the
`collect_config_data` structure.
Do so to remove our reliance on global state.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The `value_pattern` variable is used by the `format_config()` callback
when `CONFIG_FLAGS_FIXED_VALUE` is used. It is only ever set up by its
only caller, `collect_config()` and can thus easily be moved into the
`collect_config_data` structure.
Do so to remove our reliance on global state.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The `do_not_match` variable is used by the `format_config()` callback as
an indicator whether or not the passed regular expression is negated. It
is only ever set up by its only caller, `collect_config()` and can thus
easily be moved into the `collect_config_data` structure.
Do so to remove our reliance on global state.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The variable tracking whether or not we want to honor includes is
tracked via a global variable. Move it into the location options
instead.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The default value is tracked via a global variable. Move it into the
display options instead.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The type options are tracked via a global variable. Move it into the
display options instead.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The display options are tracked via a set of global variables. Move
them into a self-contained structure so that we can easily parse all
relevant options and hand them over to the various functions that
require them.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The location options are tracked via a set of global variables. Move
them into a self-contained structure so that we can easily parse all
relevant options and hand them over to the various functions that
require them.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Refactor functions to have a single exit path. This will make it easier
in subsequent commits to add common cleanup code.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The `check_write()` function verifies that we do not try to write to a
config source that cannot be written to, like for example stdin. But
while the new subcommands do call this function, they do so before
calling `handle_config_location()`. Consequently, we only end up
checking the default config location for writeability, not the location
that was actually specified by the caller of git-config(1).
Fix this by calling `check_write()` after `handle_config_location()`. We
will further clarify the relationship between those two functions in a
subsequent commit where we remove the global state that both implicitly
rely on.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We only use actions in the legacy mode. Convert them to an enum and move
them into `cmd_config_actions()` to clearly demonstrate that they are
not used anywhere else.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Move the legacy options as well some of the variables it references into
`cmd_config_action()`. This reduces our reliance on global state.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Move the subcommand options as well as the `subcommand` variable into
`cmd_config()`. This reduces our reliance on global state.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In `cmd_config()` we first try to parse the provided arguments as
subcommands and, if this is successful, call the respective functions
of that subcommand. Otherwise we continue with the "legacy" mode that
uses implicit actions and/or flags.
Disentangle this by moving the legacy mode into its own function. This
allows us to move the options into the respective functions and clearly
separates concerns.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When invoking git-config(1) with a wrong set of arguments we end up
calling `usage_builtin_config()` after printing an error message that
says what was wrong. As that function ends up printing the full list of
options, which is quite long, the actual error message will be buried by
a wall of text. This makes it really hard to figure out what exactly
caused the error.
Furthermore, now that we have recently introduced subcommands, the usage
information may actually be misleading as we unconditionally print
options of the subcommand-less mode.
Fix both of these issues by just not printing the options at all
anymore. Instead, we call `usage()` that makes us report in a single
line what has gone wrong. This should be way more discoverable for our
users and addresses the inconsistency.
Furthermore, this change allow us to inline the options into the
respective functions that use them to parse the command line.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Until now, `git config -h` would have printed help for the old-style
syntax. Now that all modes have proper subcommands though it is
preferable to instead display the subcommand help.
Drop the `NO_INTERNAL_HELP` flag to do so. While at it, drop the help
mismatch in t0450 and add the `--get-colorbool` option to the usage such
that git-config(1)'s synopsis and `git config -h` match.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Introduce a new "edit" subcommand to git-config(1). Please refer to
preceding commits regarding the motivation behind this change.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Introduce a new "remove-section" subcommand to git-config(1). Please
refer to preceding commits regarding the motivation behind this change.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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