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spacemacs/layers/+source-control/version-control/README.org
madand 081d8f29d4 [version-control] Use :toggle to avoid installation of unused packages
Usage of the `:if` keyword with `use-package` does not prevent Spacemacs form
installing the package, it only prevents the loading in run-time. This commit
employs the `:toggle` feature of the configuration layer system to prevent the
unneeded packages from being installed in the first place.

This further improves upon 31324f68bb
2019-12-27 17:39:51 +01:00

255 lines
12 KiB
Org Mode

#+TITLE: Version-Control layer
#+TAGS: layer|versioning
* Table of Contents :TOC_5_gh:noexport:
- [[#description][Description]]
- [[#features][Features:]]
- [[#install][Install]]
- [[#layer][Layer]]
- [[#configuration][Configuration]]
- [[#differences-between-margin-packages][Differences between margin packages]]
- [[#key-bindings][Key bindings]]
- [[#vc-directory-buffer-commands][VC Directory buffer commands]]
- [[#commit-message-editing-buffer][Commit message editing buffer]]
- [[#diff-mode][Diff mode]]
- [[#log-view-buffer][Log view buffer]]
- [[#annotation-buffer][Annotation buffer]]
- [[#version-control-transient-state][Version Control Transient-state]]
- [[#smerge-mode-transient-state][Smerge Mode Transient-state]]
- [[#toggles][Toggles]]
* Description
This layers adds general configuration for [[http://www.gnu.org/software/emacs/manual/html_node/emacs/Version-Control.html][Emacs VC]].
It should work with all VC backends such as Git, Mercurial, Bazaar, SVN, etc...
** Features:
- highlights uncommitted changes in the fringe or margin with [[https://github.com/dgutov/diff-hl][diff-hl]], [[https://github.com/syohex/emacs-git-gutter][git-gutter]], or [[https://github.com/nonsequitur/git-gutter-plus][git-gutter+]]
- adds vcs transient-state ~SPC g.~ to allow quick navigation and modification of buffer hunks.
* Install
** Layer
To use this configuration layer, add it to your =~/.spacemacs=. You will need to
add =version-control= to the existing =dotspacemacs-configuration-layers= list in this
file.
* Configuration
You can choose the package to facilitate the diff transient-state and show
margins by setting the =version-control-diff-tool= variable to one of the
supported packages:
- [[https://github.com/dgutov/diff-hl][diff-hl]]
- [[https://github.com/syohex/emacs-git-gutter][git-gutter]]
- [[https://github.com/nonsequitur/git-gutter-plus][git-gutter+]] (default)
#+BEGIN_SRC emacs-lisp
'(version-control :variables
version-control-diff-tool 'diff-hl)
#+END_SRC
You can choose the side on which the diff appears (by default it's the right side)
#+BEGIN_SRC emacs-lisp
'(version-control :variables
version-control-diff-side 'left)
#+END_SRC
To automatically enable diff margins in all buffers, set
=version-control-global-margin=
#+BEGIN_SRC emacs-lisp
'(version-control :variables
version-control-global-margin t)
#+END_SRC
** Differences between margin packages
This layer contains generalized mappings for three diff margin packages:
=diff-hl=, =git-gutter=, and =git-gutter+=.
There are some differences between packages that might have some people prefer
one over the other:
| Feature | diff-hl | git-gutter | git-gutter+ |
|-------------------------------------+---------+------------+-------------|
| Show in fringe | X | X | X |
| Extended VCS support (e.g. hg, svn) | X | X | |
| Stage hunks from buffer | | X | X |
| Dired support | X | | |
* Key bindings
VC commands:
| Key binding | Description |
|-------------+--------------------------------------------------------|
| ~SPC g .~ | Version control transient-state |
| ~SPC g r~ | Smerge mode transient-state |
| ~SPC g h o~ | Browser at remote |
| ~SPC g v =~ | Open a hunk under the point in the diff buffer |
| ~SPC g v D~ | Compare the entire working tree with head |
| ~SPC g v e~ | Show diff against current head using ediff |
| ~SPC g v g~ | Visually annotate the current file |
| ~SPC g v d~ | Open the VC Directory buffer |
| ~SPC g v +~ | Update the working copy |
| ~SPC g v i~ | Register (add) into a version control system |
| ~SPC g v u~ | Revert working copy to their repository contents |
| ~SPC g v l~ | List the change log |
| ~SPC g v L~ | List the change log for the current VC controlled tree |
| ~SPC g v v~ | Do the next logical VC operation (=vc-next-action=) |
| ~SPC g v I~ | Ignore file (=vc-ignore=) |
| ~SPC g v r~ | Resolve conflicts in file |
** VC Directory buffer commands
You can hit ~SPC pv~ from the current project to open the VC Directory buffer,
or use ~SPC g v d~ for specifying a root directory.
Then you may mark (=m= key) files you are interested in, to form a fileset.
Most commands described above are applicable to filesets too.
To some of them are given shortcuts:
| Key binding | Description |
|-------------+-----------------------------------|
| ~=~ | Compare selected files with head |
| ~c~ | Open a =commit message buffer= |
| ~l~ | List changes |
| ~a~ | Annotate selected files |
| ~i~ | Add into a version control system |
| ~r~ | Refresh directory view |
| ~E~ | Ignore file under cursor |
Navigation and interaction commands in the VC Directory buffer:
| Key binding | Description |
|-----------------+--------------------|
| ~j~ or ~M-n~ | Next file |
| ~k~ or ~M-p~ | Previous file |
| ~gj~ or ~TAB~ | Next directory |
| ~gk~ or ~S-TAB~ | Previous directory |
| ~m~ | Mark a file |
| ~u~ | Unmark a file |
** Commit message editing buffer
In a commit message buffer press ~C-c C-c~ to commit the changes with the entered message.
Pressing ~C-c C-k~ will discard the commit message and close this buffer.
** Diff mode
| Key binding | Description |
|-------------+------------------------------------------------|
| ~SPC m a~ | Apply a hunk |
| ~SPC m d~ | Kill the hunk at point |
| ~SPC m D~ | Kill the current file's hunk |
| ~SPC m e~ | Call =ediff-patch-file= on current buffer |
| ~SPC m f c~ | Convert unified diffs to context diffs |
| ~SPC m f r~ | Reverse the direction of the diffs |
| ~SPC m f u~ | Convert context diffs to unified diffs |
| ~SPC m g~ | Jump to the corresponding source line |
| ~SPC m j~ | Next hunk |
| ~SPC m J~ | Next file |
| ~SPC m k~ | Previous hunk |
| ~SPC m K~ | Previous file |
| ~SPC m q~ | Close the diff window |
| ~SPC m r~ | Revert a hunk |
| ~SPC m s~ | Split the current hunk at point into two hunks |
| ~SPC m u~ | Undo |
A transient buffer is also defined, start it with ~SPC m .~ or ~, .~
| Key binding | Description |
|-------------+---------------|
| ~j~ | Next hunk |
| ~J~ | Next file |
| ~k~ | Previous hunk |
| ~K~ | Previous file |
** Log view buffer
| Key binding | Description |
|------------------------+----------------------------------------------------------------------------|
| ~C-j~ or ~M-n~ | Next message |
| ~C-k~ or ~M-p~ | Previous message |
| ~gj~ or ~J~ or ~TAB~ | Next file |
| ~gk~ or ~K~ or ~S-TAB~ | Previous file |
| ~f~ or ~ENTER~ | Visit the version at point |
| ~d~ | Display a diff between the revision at point and the next earlier revision |
| ~o~ | Use for jumping to links |
| ~H~ | Toggle hiding of the full message |
** Annotation buffer
| Key binding | Description |
|-------------+--------------------------------------------------------------------------------|
| ~J~ | Visit the annotation of the revision after this one |
| ~K~ | Visit the annotation of the revision previous to this one |
| ~L~ | visit the log of the revision at line |
| ~H~ | Toggle whether or not the annotation is visible |
| ~a~ | Visit the annotation of the revision identified in the current line |
| ~p~ | Visit the annotation of the revision before the revision at line |
| ~d~ | Display the diff between the current line's revision and the previous revision |
| ~f~ | Show in a buffer the file revision indicated by the current line |
** Version Control Transient-state
Use ~SPC g .~ to enter a transient state for quickly navigating between hunks in a buffer. During that state, the following bindings are active:
| Key binding | Description |
|-------------+------------------------------|
| ~h~ | Show diff of hunk |
| ~n~ | Next hunk |
| ~N~ or ~p~ | Previous hunk |
| ~r~ | Revert hunk |
| ~s~ | Stage hunk |
| ~t~ | Toggle margin indicators |
| ~w~ | Stage file |
| ~u~ | Unstage file |
| ~d~ | Repo diff popup |
| ~D~ | Show diffs of unstaged hunks |
| ~c~ | Commit with popup |
| ~C~ | Commit |
| ~P~ | Push repo with popup |
| ~f~ | Fetch for repo with popup |
| ~F~ | Pull repo with popup |
| ~l~ | Show repo log |
| ~z~ | Recenter buffer in window |
** Smerge Mode Transient-state
Movement:
| Key binding | Description |
|----------------------------+---------------------|
| ~SPC g r n~ | Next hunk |
| ~SPC g r N~ or ~SPC g r p~ | Previous hunk |
| ~SPC g r j~ | Go to next line |
| ~SPC g r k~ | Go to previous line |
Merge Actions:
| Key binding | Description |
|-------------+--------------|
| ~SPC g r b~ | Keep base |
| ~SPC g r m~ | Keep mine |
| ~SPC g r a~ | Keep all |
| ~SPC g r o~ | Keep other |
| ~SPC g r c~ | Keep current |
| ~SPC g r K~ | Kill current |
Diff:
| Key binding | Description |
|-------------+---------------------|
| ~SPC g r <~ | Diff base and mine |
| ~SPC g r =~ | Diff mine and other |
| ~SPC g r >~ | Diff base and other |
| ~SPC g r r~ | Refine |
| ~SPC g r e~ | Ediff |
Other:
| Key binding | Description |
|-------------+--------------------------------|
| ~SPC g r C~ | Combine current and next hunks |
| ~SPC g r u~ | Undo |
| ~SPC g r q~ | Quit transient state |
** Toggles
| Key binding | Description |
|-------------+------------------------------|
| ~SPC T d~ | Toggle diff margins |
| ~SPC T C-d~ | Toggle diff margins globally |