From: Heba Waly
Move the documentation from Documentation/technical/api-config.txt into
config.h
Signed-off-by: Heba Waly
---
Documentation/technical/api-config.txt | 319 ---
config.h | 336 +
2 files changed, 336 insertions(+), 319 deletions(-)
delete mode 100644 Documentation/technical/api-config.txt
diff --git a/Documentation/technical/api-config.txt
b/Documentation/technical/api-config.txt
deleted file mode 100644
index 7d20716c32..00
--- a/Documentation/technical/api-config.txt
+++ /dev/null
@@ -1,319 +0,0 @@
-config API
-==
-
-The config API gives callers a way to access Git configuration files
-(and files which have the same syntax). See linkgit:git-config[1] for a
-discussion of the config file syntax.
-
-General Usage
--
-
-Config files are parsed linearly, and each variable found is passed to a
-caller-provided callback function. The callback function is responsible
-for any actions to be taken on the config option, and is free to ignore
-some options. It is not uncommon for the configuration to be parsed
-several times during the run of a Git program, with different callbacks
-picking out different variables useful to themselves.
-
-A config callback function takes three parameters:
-
-- the name of the parsed variable. This is in canonical "flat" form: the
- section, subsection, and variable segments will be separated by dots,
- and the section and variable segments will be all lowercase. E.g.,
- `core.ignorecase`, `diff.SomeType.textconv`.
-
-- the value of the found variable, as a string. If the variable had no
- value specified, the value will be NULL (typically this means it
- should be interpreted as boolean true).
-
-- a void pointer passed in by the caller of the config API; this can
- contain callback-specific data
-
-A config callback should return 0 for success, or -1 if the variable
-could not be parsed properly.
-
-Basic Config Querying
--
-
-Most programs will simply want to look up variables in all config files
-that Git knows about, using the normal precedence rules. To do this,
-call `git_config` with a callback function and void data pointer.
-
-`git_config` will read all config sources in order of increasing
-priority. Thus a callback should typically overwrite previously-seen
-entries with new ones (e.g., if both the user-wide `~/.gitconfig` and
-repo-specific `.git/config` contain `color.ui`, the config machinery
-will first feed the user-wide one to the callback, and then the
-repo-specific one; by overwriting, the higher-priority repo-specific
-value is left at the end).
-
-The `config_with_options` function lets the caller examine config
-while adjusting some of the default behavior of `git_config`. It should
-almost never be used by "regular" Git code that is looking up
-configuration variables. It is intended for advanced callers like
-`git-config`, which are intentionally tweaking the normal config-lookup
-process. It takes two extra parameters:
-
-`config_source`::
-If this parameter is non-NULL, it specifies the source to parse for
-configuration, rather than looking in the usual files. See `struct
-git_config_source` in `config.h` for details. Regular `git_config` defaults
-to `NULL`.
-
-`opts`::
-Specify options to adjust the behavior of parsing config files. See `struct
-config_options` in `config.h` for details. As an example: regular `git_config`
-sets `opts.respect_includes` to `1` by default.
-
-Reading Specific Files
---
-
-To read a specific file in git-config format, use
-`git_config_from_file`. This takes the same callback and data parameters
-as `git_config`.
-
-Querying For Specific Variables
-
-For programs wanting to query for specific variables in a non-callback
-manner, the config API provides two functions `git_config_get_value`
-and `git_config_get_value_multi`. They both read values from an internal
-cache generated previously from reading the config files.
-
-`int git_config_get_value(const char *key, const char **value)`::
-
- Finds the highest-priority value for the configuration variable `key`,
- stores the pointer to it in `value` and returns 0. When the
- configuration variable `key` is not found, returns 1 without touching
- `value`. The caller should not free or modify `value`, as it is owned
- by the cache.
-
-`const struct string_list *git_config_get_value_multi(const char *key)`::
-
- Finds and returns the value list, sorted in order of increasing priority
- for the configuration variable `key`. When the configuration variable
- `key` is not found, returns NULL. The caller should not free or modify
- the returned pointer, as it is owned by the cache.
-
-`void git_config_clear(void)`::
-
- Resets and invalidates the config cache.
-
-The config API also provides type specific API functions
