feat: Add git-auto-commit and git-auto-push hooks

Author: twpayne

assets/chezmoi.io/docs/reference/configuration-file/hooks.md

@@ -9,15 +9,17 @@ The following events are defined:
 | Event                 | Trigger                                       |
 | --------------------- | --------------------------------------------- |
 | *command*, e.g. `add` | Running `chezmoi command`, e.g. `chezmoi add` |
+| `git-auto-commit`     | Generating an automatic git commit            |
+| `git-auto-push`       | Running an automatic git push                 |
 | `read-source-state`   | Reading the source state                      |
 
 Each event can have a `.pre` and/or a `.post` command. The *event*.`pre` command
 is executed before *event* occurs and the *event*`.post` command is executed
 after *event* has occurred.
 
- A command contains a `command` or `script` and an optional array of strings
- `args`. `command`s are executed directly. `script`s are executed with
-configured interpreter for the script's extension, see the [section on
+A command contains a `command` or `script` and an optional array of strings
+`args`. `command`s are executed directly. `script`s are executed with configured
+interpreter for the script's extension, see the [section on
 interpreters](interpreters.md).
 
 !!! example

internal/cmd/config.go

@@ -1583,15 +1583,33 @@ func (c *Config) gitAutoCommit(cmd *cobra.Command, status *chezmoigit.Status) er
 	if err != nil {
 		return err
 	}
-	return c.run(c.WorkingTreeAbsPath, c.Git.Command, []string{"commit", "--message", string(commitMessage)})
+	if err := c.runHookPre("git-auto-commit"); err != nil {
+		return err
+	}
+	if err := c.run(c.WorkingTreeAbsPath, c.Git.Command, []string{"commit", "--message", string(commitMessage)}); err != nil {
+		return err
+	}
+	if err := c.runHookPost("git-auto-commit"); err != nil {
+		return err
+	}
+	return nil
 }
 
 // gitAutoPush pushes all changes to the remote if status is not empty.
 func (c *Config) gitAutoPush(status *chezmoigit.Status) error {
 	if status.Empty() {
 		return nil
 	}
-	return c.run(c.WorkingTreeAbsPath, c.Git.Command, []string{"push"})
+	if err := c.runHookPre("git-auto-push"); err != nil {
+		return err
+	}
+	if err := c.run(c.WorkingTreeAbsPath, c.Git.Command, []string{"push"}); err != nil {
+		return err
+	}
+	if err := c.runHookPost("git-auto-push"); err != nil {
+		return err
+	}
+	return nil
 }
 
 // gitCommitMessage returns the git commit message for the given status.

internal/cmd/testdata/scripts/autopush.txtar

@@ -10,6 +10,10 @@ exec chezmoi init file://$WORK/dotfiles.git
 
 # test that chezmoi add creates and pushes a commit
 exec chezmoi add $HOME${/}.file
+stdout ^git-auto-commit-pre$
+stdout ^git-auto-commit-post$
+stdout ^git-auto-push-pre$
+stdout ^git-auto-push-post$
 exec git --git-dir=$WORK/dotfiles.git show HEAD
 stdout 'Add \.file'
 
@@ -41,3 +45,16 @@ stdout 'Remove \.file'
 -- home/user/.config/chezmoi/chezmoi.toml --
 [git]
     autoPush = true
+[hooks.git-auto-commit.pre]
+    command = "echo"
+    args = ["git-auto-commit-pre"]
+[hooks.git-auto-commit.post]
+    command = "echo"
+    args = ["git-auto-commit-post"]
+[hooks.git-auto-push.pre]
+    command = "echo"
+    args = ["git-auto-push-pre"]
+[hooks.git-auto-push.post]
+    command = "echo"
+    args = ["git-auto-push-post"]
+