Merge branch 'config'

* config:
  Adjust README headings to avoid duplicate H1
  Version 1.4.0
  Take config file from XDG_CONFIG_HOME if has set
  Default `editor_cmd` to $EDITOR if available

CHANGES.md

@@ -1,6 +1,11 @@
 CHANGES
 =======
 
+## 1.4.0 (2023-04-15)
+
+* Use config file from `XDG_CONFIG_HOME` if available.
+* Respect `$EDITOR` config as default editor command.
+
 ## 1.3.2 (2022-11-10)
 
 * For a `dos` format file, open the diff buffer with also dos fileformat.

README.md

@@ -7,13 +7,12 @@ View git diff in Vim tabs.
 - `GitDiff`, `GitDiffInfo`, `GitDiffOff` commands for Vim.
 
 
-Install
-=======
+## Install
 
 Install like general Vim plugins.
 
 
-## Install Zsh Helper Function
+### Install Zsh Helper Function
 
 - With [zcomet][]
 
@@ -39,8 +38,7 @@ Install like general Vim plugins.
   ```
 
 
-Zsh Function Usage
-==================
+## Zsh Function Usage
 
 In zsh, use `gitdiffall` to open git diff in Vim tabs, examples:
 
@@ -64,19 +62,20 @@ For convenience, some special notations are available:
 During merge conflicts, `gitdiffall` will open a 3-way diff in Vim.
 
 
-Zsh Function Configuration
-==========================
+## Zsh Function Configuration
 
 gitdiffall.rb takes configure file from one of the following:
 
+- `$XDG_CONFIG_HOME/gitdiffall/config.rb`
+- `$XDG_CONFIG_HOME/gitdiffall-config.rb`
 - `~/gitdiffall/config.rb`
 - `~/gitdiffall-config.rb`
 - `{dir_contains_gitdiffall.rb}/gitdiffall/config.rb`
 - `{dir_contains_gitdiffall.rb}/gitdiffall-config.rb`
 
 Supported config items:
 
-- `editor_cmd` (default: "vim")  
+- `editor_cmd` (default: respect `$EDITOR`, or "vim")  
   Command to execute Vim.
 - `max_files` (default: 14)  
   Wait for confirmation before open such many files.
@@ -99,8 +98,7 @@ CONFIG = {
 ```
 
 
-Tips
-====
+## Tips
 
 In tmux copy mode, select some commit hash and press `>` to do gitdiffall in
 new tmux window, see [tmux-in.rb][] gist.

bin/gitdiffall.rb

@@ -2,20 +2,30 @@
 
 require 'optparse'
 require 'pathname'
-Version = '1.3.2'
-
-config_path = [
-  '~/gitdiffall/config.rb',
-  '~/gitdiffall-config.rb',
-  (File.dirname(__FILE__) + '/gitdiffall/config.rb'),
-  (File.dirname(__FILE__) + '/gitdiffall-config.rb')
-].find {|path|
+Version = '1.4.0'
+
+
+cfg_files = %w[
+  gitdiffall/config.rb
+  gitdiffall-config.rb
+]
+cfg_dirs = [
+  ENV['XDG_CONFIG_HOME'],
+  ENV['HOME'],
+  File.dirname(__FILE__)
+].reject(&:nil?)
+cfg_paths = cfg_dirs.flat_map do |dir|
+  cfg_files.map { |file| "#{dir}/#{file}" }
+end
+
+cfg_path = cfg_paths.find do |path|
   File.exist?(File.expand_path(path))
-}
-require config_path if config_path
+end
+require cfg_path if cfg_path
+
 
 config = ({
-  :editor_cmd     => 'vim',
+  :editor_cmd     => ENV['EDITOR'] || 'vim',
   :max_files      => 14,
   :min_hash_abbr  => 5,
   :ignore_pattern => /\.(png|jpg)\Z/i

doc/gitdiffall.txt

@@ -1,6 +1,6 @@
 *gitdiffall.txt*                                     View git diff in Vim tabs
 
-Version:    1.3.2
+Version:    1.4.0
 Author:     bootleq <[email protected]>
 License:    Public Domain
 Repository: https://github.com/bootleq/vim-gitdiffall