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spacemacs/layers/+source-control/git/README.org
duianto 116c51520e Add a key binding for magit-find-file 
problem:  currently, viewing a file at a specific branch/commit, requires one to
          type the magit-find-file command, at the M-x prompt
solution: SPC g f f is available and consistent with the SPC f f key binding
2017-05-18 18:40:34 +02:00

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#+TITLE: Git contribution layer for Spacemacs
[[file:img/git.png]]
* Table of Contents :TOC_4_gh:noexport:
- [[#descriptions][Descriptions]]
- [[#features][Features:]]
- [[#install][Install]]
- [[#layer][Layer]]
- [[#magit-status-fullscreen][Magit status fullscreen]]
- [[#magit-auto-complete][Magit auto-complete]]
- [[#magit-svn-plugin][Magit SVN plugin]]
- [[#global-git-commit-mode][Global git commit mode]]
- [[#git][Git]]
- [[#git-flow][Git-Flow]]
- [[#org-integration][Org integration]]
- [[#working-with-git][Working with Git]]
- [[#magit][Magit]]
- [[#staging-lines][Staging lines]]
- [[#commit-message-editing-buffer][Commit message editing buffer]]
- [[#interactive-rebase-buffer][Interactive rebase buffer]]
- [[#quick-guide-for-recurring-use-cases-in-magit][Quick guide for recurring use cases in Magit]]
- [[#git-flow-1][Git-Flow]]
- [[#git-time-machine][Git time machine]]
- [[#git-links-to-web-services][Git links to web services]]
- [[#repository-list][Repository list]]
* Descriptions
This layers adds extensive support for [[http://git-scm.com/][git]].
** Features:
- git repository management the indispensable [[http://magit.vc/][magit]] package
- [[https://github.com/jtatarik/magit-gitflow][git-flow]] add-on for magit.
- quick in buffer history browsing with [[https://github.com/pidu/git-timemachine][git-timemachine]].
- quick in buffer last commit message per line with [[https://github.com/syohex/emacs-git-messenger][git-messenger]]
- colorize buffer line by age of commit with [[https://github.com/syohex/emacs-smeargle][smeargle]]
- gitignore generator with [[https://github.com/jupl/helm-gitignore][helm-gitignore]]
- org integration with magit via [[https://github.com/magit/orgit][orgit]]
New to Magit? Checkout the [[https://magit.vc/about/][official intro]].
* Install
** Layer
To use this configuration layer, add it to your =~/.spacemacs=. You will need to
add =git= to the existing =dotspacemacs-configuration-layers= list in this
file.
** Magit status fullscreen
To display the =magit status= buffer in fullscreen set the variable
=git-magit-status-fullscreen= to =t= in your =dotspacemacs/user-init= function.
#+BEGIN_SRC emacs-lisp
(defun dotspacemacs/user-init ()
(setq-default git-magit-status-fullscreen t))
#+END_SRC
** Magit auto-complete
Magit auto-complete feature is enabled. For this feature to work best you
have to setup your Git repository directory in your =dotspacemacs/user-config=
function, this is the folder where you keep all your git-controlled projects
(the path should end up with a ~/~ to respect Emacs conventions):
#+BEGIN_SRC emacs-lisp
(setq magit-repository-directories '("~/repos/"))
#+END_SRC
For more information, see [[http://magit.vc/manual/magit.html#Status-buffer][Magit-User-Manual#Status-buffer]]
** Magit SVN plugin
For convenience the magit SVN plugin can be activated directly in the Git
layer by setting the variable =git-enable-magit-svn-plugin= to =t=.
#+BEGIN_SRC emacs-lisp
(defun dotspacemacs/user-init ()
(setq-default git-enable-magit-svn-plugin t))
#+END_SRC
** Global git commit mode
Spacemacs can be used as the =$EDITOR= (or =$GIT_EDITOR=) for editing git
commits messages. To enable this you have to add the following line to your
=dotspacemacs/user-config=:
#+begin_src emacs-lisp
(global-git-commit-mode t)
#+end_src
** Git
Of course if your OS does not ship with git (!) you'll have to install it
on your machine. You can download it from the [[http://git-scm.com/downloads][download page]].
** Git-Flow
Git-flow is a standardized branching pattern for git repositories with the aim
of making things more manageable. While there are tools to assist with making
this easier, these do nothing you couldn't do manually.
Support requires installation of the git-flow extensions. Please reference their
[[https://github.com/petervanderdoes/gitflow/wiki][installation page]] for assistance.
** Org integration
See the commentary section of the package [[https://github.com/magit/orgit/blob/master/orgit.el#L28][here]].
* Working with Git
Git commands (start with ~g~):
| Key Binding | Description |
|-------------+-----------------------------------------------------|
| ~SPC g >~ | show submodule prompt |
| ~SPC g b~ | open a =magit= blame |
| ~SPC g f f~ | view a file at a specific branch or commit |
| ~SPC g f h~ | show file commits history |
| ~SPC g H c~ | clear highlights |
| ~SPC g H h~ | highlight regions by age of commits |
| ~SPC g H t~ | highlight regions by last updated time |
| ~SPC g i~ | initialize a new git repository |
| ~SPC g I~ | open =helm-gitignore= |
| ~SPC g L~ | open magit-repolist |
| ~SPC g s~ | open a =magit= status window |
| ~SPC g S~ | stage current file |
| ~SPC g m~ | magit dispatch popup |
| ~SPC g M~ | display the last commit message of the current line |
| ~SPC g t~ | launch the git time machine |
| ~SPC g U~ | unstage current file |
- Highlight by age of commit or last update time is provided by
[[https://github.com/syohex/emacs-smeargle][smeargle]].
- Git time machine is provided by [[https://github.com/pidu/git-timemachine][git-timemachine]].
- Git last commit message per line is provided by [[https://github.com/syohex/emacs-git-messenger][git-messenger]].
** Magit
Spacemacs uses [[http://magit.vc/][magit]] to manage Git repositories.
To open a =status buffer=, type in a buffer of a Git repository: ~SPC g s~.
The central key binding hub of Magit is available on ~SPC g m~.
Spacemacs uses [[https://github.com/justbur/evil-magit][evil-magit]] for key bindings in magit buffers (unless your editing
style is set to emacs, in which case you get the default magit bindings), which
are the standard magit key bindings with some minimal changes to make them
comfortable for evil users.
Here are the often used bindings inside a =status buffer=:
| Key Binding | Description |
|-------------+---------------------------------------------------------------------|
| ~/~ | evil-search |
| ~$~ | open =command output buffer= |
| ~c c~ | open a =commit message buffer= |
| ~b b~ | checkout a branch |
| ~b c~ | create a branch |
| ~f f~ | fetch changes |
| ~F (r) u~ | pull tracked branch and rebase |
| ~gr~ | refresh |
| ~j~ | goto next magit section |
| ~C-j~ | next visual line |
| ~k~ | goto previous magit section |
| ~C-k~ | previous visual line |
| ~l l~ | open =log buffer= |
| ~n~ | next search occurrence |
| ~N~ | previous search occurrence |
| ~o~ | revert item at point |
| ~P u~ | push to tracked branch |
| ~P m~ | push to matching branch (e.g., upstream/develop to origin/develop) |
| ~q~ | quit |
| ~s~ | on a file or hunk in a diff: stage the file or hunk |
| ~x~ | discard changes |
| ~+~ | on a hunk: increase hunk size |
| ~=~ | on a hunk: decrease hunk size |
| ~S~ | stage all |
| ~TAB~ | on a file: expand/collapse diff |
| ~u~ | on a staged file: unstage |
| ~U~ | unstage all staged files |
| ~v or V~ | select multiple lines |
| ~z z~ | stash changes |
** Staging lines
Magit allows you to stage specific lines by selecting them in a diff and hitting
=s= to stage. Due to inconsistencies between Vim and Emacs editing styles, if
you enter visual line state with =V=, you will stage one more line than
intended. To work around this, you can use =v= instead (since Magit only stages
whole lines, in any case).
** Commit message editing buffer
In a commit message buffer press ~​,​c~ (if =dotspacemacs-major-mode-leader-key= is ~​,​~)
or ~C-c C-c~ to commit the changes with the entered message. Pressing ~​,​a~ or ~C-c C-k~
will discard the commit message.
| Key Binding | Description |
|-------------+-------------|
| ~h~ | go left |
| ~j~ | go down |
| ~k~ | go up |
| ~l~ | go right |
** Interactive rebase buffer
| Key Binding | Description |
|-------------+----------------|
| ~c~ or ~p~ | pick |
| ~e~ | edit |
| ~f~ | fixup |
| ~j~ | go down |
| ~M-j~ | move line down |
| ~k~ | go up |
| ~M-k~ | move line up |
| ~d~ or ~x~ | kill line |
| ~r~ | reword |
| ~s~ | squash |
| ~u~ | undo |
| ~y~ | insert |
| ~!~ | execute |
** Quick guide for recurring use cases in Magit
- Amend a commit:
- ~l l~ to open =log buffer=
- ~c a~ on the commit you want to amend
- ~​,​c~ or ~C-c C-c~ to submit the changes
- Squash last commit:
- ~l l~ to open =log buffer=
- ~r e~ on the second to last commit, it opens the =rebase buffer=
- ~j~ to put point on last commit
- ~s~ to squash it
- ~​,​c~ or ~C-c C-c~ to continue to the =commit message buffer=
- ~​,​c~ or ~C-c C-c~ again when you have finished to edit the commit message
- Force push a squashed commit:
- in the =status buffer= you should see the new commit unpushed and the old
commit unpulled
- ~P -f P~ for force a push (*beware* usually it is not recommended to rewrite
the history of a public repository, but if you are *sure* that you are the
only one to work on a repository it is ok - i.e. in your fork).
- Add upstream remote (the parent repository you have forked):
- ~M~ to open the =remote popup=
- ~a~ to add a remote, type the name (i.e. =upstream=) and the URL
- Pull changes from upstream (the parent repository you have forked) and push:
- ~F -r C-u F~ and choose =upstream= or the name you gave to it
- ~P P~ to push the commit to =origin=
** Git-Flow
[[https://github.com/jtatarik/magit-gitflow][magit-gitflow]] provides git-flow commands in its own magit menu.
| Key Binding | Description |
|-------------+-------------------------|
| ~%~ | open magit-gitflow menu |
** Git time machine
[[https://github.com/pidu/git-timemachine][git-timemachine]] allows to quickly browse the commits of the current buffer.
| Key Binding | Description |
|-------------+----------------------------------------------------|
| ~SPC g t~ | start git timemachine and initiate transient-state |
| ~c~ | show current commit |
| ~n~ | show next commit |
| ~N~ | show previous commit |
| ~p~ | show previous commit |
| ~q~ | leave transient-state and git timemachine |
| ~Y~ | copy current commit hash |
** Git links to web services
These key bindings allow to quickly construct URLs pointing to a given commit
or lines in a file hosted on Git web services like GitHub, GitLab, Bitbucket...
| Key Binding | Description |
|-------------+------------------------------------------------------------------------|
| ~SPC g l c~ | on a commit hash, browse to the current file at this commit |
| ~SPC g l C~ | on a commit hash, create link to the file at this commit and copy it |
| ~SPC g l l~ | on a region, browse to file at current lines position |
| ~SPC g l L~ | on a region, create a link to the file highlighting the selected lines |
*Notes:*
- You can use the universal argument ~SPC u~ to select a remote repository.
- When the link is opened, the URL is also copied in the kill ring, you can
override this behavior by setting the variable =git-link-open-in-browser= to
=nil=.
** Repository list
This feature will show a list of git directories. The feature needs slight
configuration within your `.spacemacs` config. In the `dotspacemacs/user-config()`
stanza insert the following with the directories of your choice:
#+BEGIN_SRC emacs-lisp
(setq magit-repository-directories
'("~/Development"))
#+END_SRC
| Key Binding | Description |
|-------------+-----------------------------------------------------|
| ~SPC g L~ | start git repo list |
| ~RET~ | show the git status window for the selected project |
| ~gr~ | refresh the project list |
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