zimfw/modules/git-info/README.md

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git-info
========
Exposes git repository status information to prompts.
Many thanks to [Sorin Ionescu](https://github.com/sorin-ionescu) and
[Colin Hebert](https://github.com/ColinHebert) for the original code.
Git **1.7.2** is the
[minimum required version](https://github.com/sorin-ionescu/prezto/issues/219).
Settings
--------
### Ignore submodules
Retrieving the status of a repository with submodules can take a long time.
So by default 'all' submodules are ignored. Optionally, 'untracked', 'dirty', or
'none' submodules can be ignored:
zstyle ':zim:git-info' ignore-submodules 'none'
### Verbose mode
Verbose mode uses `git status` and computes the count of indexed, unindexed and
also untracked files. It can be enabled with the following zstyle:
zstyle ':zim:git-info' verbose yes
In non-verbose mode, the 'untracked' context is not available (see *Main
contexts* below), and untracked files are also not considered for computing the
'dirty' context. Using `git status` to check for untracked files can be
[expensive](https://gist.github.com/sindresorhus/3898739).
Theming
-------
To display information about the current repository in a prompt, define your
custom styles in the `prompt_name_setup` function, where the syntax for setting
a style is:
zstyle ':zim:git-info:context' format 'string'
### Main contexts
| Name | Code | Description
| --------- | :----: | ---------------------------------------------------------
| action | %s | Special action name (see *Special action contexts* below)
| ahead | %A | Commits ahead of remote count
| behind | %B | Commits behind of remote count
| diverged | %V | Diverged commits (both ahead and behind are yield when it's not defined)
| branch | %b | Branch name
| commit | %c | Commit short hash (when in 'detached HEAD' state)
| clean | %C | Clean state
| dirty | %D | Dirty state (count with untracked files when verbose mode enabled)
| indexed | %i | Indexed files (count when verbose mode enabled)
| unindexed | %I | Unindexed files (count when verbose mode enabled)
| position | %p | Commits from nearest tag count (when in 'detached HEAD' state)
| remote | %R | Remote name
| stashed | %S | Stashed states count
| untracked | %u | Untracked files count (only when verbose mode enabled)
While `commit` and `position` are only available when in ['detached HEAD'
state](http://gitfaq.org/articles/what-is-a-detached-head.html), on the other
hand, `ahead`, `behind`, `diverged`, `branch` and `remote` are only available
when an actual branch is checked out (so when **not** in 'detached HEAD' state).
### Special action contexts
| Name | Format | Default Value
| --------------------------- | :-----: | --------------------------------------
| action:apply | value | 'apply'
| action:bisect | value | 'bisect'
| action:cherry-pick | value | 'cherry-pick'
| action:cherry-pick-sequence | value | 'cherry-pick-sequence'
| action:merge | value | 'merge'
| action:rebase | value | 'rebase'
| action:rebase-interactive | value | 'rebase-interactive'
| action:rebase-merge | value | 'rebase-merge'
Formatting example for special actions:
zstyle ':zim:git-info:action:bisect' format '<B>'
zstyle ':zim:git-info:action:merge' format '>M<'
zstyle ':zim:git-info:action:rebase' format '>R>'
### Usage
First, format the repository state attributes. For example, to format the
branch name, commit, and remote name, define the following styles:
zstyle ':zim:git-info:branch' format 'branch:%b'
zstyle ':zim:git-info:commit' format 'commit:%c'
zstyle ':zim:git-info:remote' format 'remote:%R'
Second, format how the above attributes are displayed in prompts:
zstyle ':zim:git-info:keys' format \
'prompt' 'git(%b%c)' \
'rprompt' '[%R]'
Last, add `${(e)git_info[prompt]}` and `${(e)git_info[rprompt]}` to `PS1` and
`RPS1` respectively, and call `git-info` in the `prompt_name_precmd` hook function.