Add purge command

cmd/config.go

@@ -84,6 +84,7 @@ type Config struct {
 	_import           importCmdConfig
 	init              initCmdConfig
 	keyring           keyringCmdConfig
+	purge             purgeCmdConfig
 	remove            removeCmdConfig
 	update            updateCmdConfig
 	upgrade           upgradeCmdConfig

cmd/purge.go

@@ -0,0 +1,74 @@
+package cmd
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+
+	"github.com/spf13/cobra"
+)
+
+var purgeCmd = &cobra.Command{
+	Use:     "purge",
+	Args:    cobra.NoArgs,
+	Short:   "Purge all of chezmoi's configuration and data",
+	Long:    mustGetLongHelp("purge"),
+	Example: getExample("purge"),
+	RunE:    config.runPurgeCmd,
+}
+
+type purgeCmdConfig struct {
+	force bool
+}
+
+func init() {
+	rootCmd.AddCommand(purgeCmd)
+
+	persistentFlags := purgeCmd.PersistentFlags()
+	persistentFlags.BoolVarP(&config.purge.force, "force", "f", false, "remove without prompting")
+}
+
+func (c *Config) runPurgeCmd(cmd *cobra.Command, args []string) error {
+	// Build a list of chezmoi-related paths.
+	var paths []string
+	for _, dirs := range [][]string{
+		c.bds.ConfigDirs,
+		c.bds.DataDirs,
+	} {
+		for _, dir := range dirs {
+			paths = append(paths, filepath.Join(dir, "chezmoi"))
+		}
+	}
+	paths = append(paths, c.configFile, c.getPersistentStateFile())
+
+	// Remove all paths that exist.
+PATH:
+	for _, path := range paths {
+		_, err := c.fs.Stat(path)
+		switch {
+		case os.IsNotExist(err):
+			continue PATH
+		case err != nil:
+			return err
+		}
+		if !c.purge.force {
+			choice, err := c.prompt(fmt.Sprintf("Remove %s", path), "ynqa")
+			if err != nil {
+				return err
+			}
+			switch choice {
+			case 'a':
+				c.purge.force = true
+			case 'n':
+				continue PATH
+			case 'q':
+				return nil
+			}
+		}
+		if err := c.mutator.RemoveAll(path); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}

completions/chezmoi-completion.bash

@@ -1096,6 +1096,46 @@ _chezmoi_merge()
     noun_aliases=()
 }
 
+_chezmoi_purge()
+{
+    last_command="chezmoi_purge"
+
+    command_aliases=()
+
+    commands=()
+
+    flags=()
+    two_word_flags=()
+    local_nonpersistent_flags=()
+    flags_with_completion=()
+    flags_completion=()
+
+    flags+=("--force")
+    flags+=("-f")
+    flags+=("--color=")
+    two_word_flags+=("--color")
+    flags+=("--config=")
+    two_word_flags+=("--config")
+    two_word_flags+=("-c")
+    flags+=("--debug")
+    flags+=("--destination=")
+    two_word_flags+=("--destination")
+    two_word_flags+=("-D")
+    flags+=("--dry-run")
+    flags+=("-n")
+    flags+=("--follow")
+    flags+=("--remove")
+    flags+=("--source=")
+    two_word_flags+=("--source")
+    two_word_flags+=("-S")
+    flags+=("--verbose")
+    flags+=("-v")
+
+    must_have_one_flag=()
+    must_have_one_noun=()
+    noun_aliases=()
+}
+
 _chezmoi_remove()
 {
     last_command="chezmoi_remove"
@@ -1896,6 +1936,7 @@ _chezmoi_root_command()
     commands+=("import")
     commands+=("init")
     commands+=("merge")
+    commands+=("purge")
     commands+=("remove")
     if [[ -z "${BASH_VERSION}" || "${BASH_VERSINFO[0]}" -gt 3 ]]; then
         command_aliases+=("rm")

completions/chezmoi.fish

@@ -1,7 +1,7 @@
 
 function __fish_chezmoi_no_subcommand --description 'Test if chezmoi has yet to be given the subcommand'
 	for i in (commandline -opc)
-		if contains -- $i add apply archive cat cd chattr completion data diff docs doctor dump edit edit-config execute-template forget git hg import init merge remove secret source source-path unmanaged update upgrade verify
+		if contains -- $i add apply archive cat cd chattr completion data diff docs doctor dump edit edit-config execute-template forget git hg import init merge purge remove secret source source-path unmanaged update upgrade verify
 			return 1
 		end
 	end
@@ -56,6 +56,7 @@ complete -c chezmoi -f -n '__fish_chezmoi_no_subcommand' -a hg -d 'Run mercurial
 complete -c chezmoi -f -n '__fish_chezmoi_no_subcommand' -a import -d 'Import a tar archive into the source state'
 complete -c chezmoi -f -n '__fish_chezmoi_no_subcommand' -a init -d 'Setup the source directory and update the destination directory to match the target state'
 complete -c chezmoi -f -n '__fish_chezmoi_no_subcommand' -a merge -d 'Perform a three-way merge between the destination state, the source state, and the target state'
+complete -c chezmoi -f -n '__fish_chezmoi_no_subcommand' -a purge -d 'Purge all of chezmoi\'s configuration and data'
 complete -c chezmoi -f -n '__fish_chezmoi_no_subcommand' -a remove -d 'Remove a target from the source state and the destination directory'
 complete -c chezmoi -f -n '__fish_chezmoi_no_subcommand' -a secret -d 'Interact with a secret manager'
 complete -c chezmoi -f -n '__fish_chezmoi_no_subcommand' -a source -d 'Run the source version control system command in the source directory'
@@ -284,6 +285,16 @@ complete -c chezmoi -f -n '__fish_chezmoi_seen_subcommand_path merge'   -l follo
 complete -c chezmoi -f -n '__fish_chezmoi_seen_subcommand_path merge'   -l remove -d 'remove targets'
 complete -c chezmoi -f -n '__fish_chezmoi_seen_subcommand_path merge' -r -s S -l source -d 'source directory'
 complete -c chezmoi -f -n '__fish_chezmoi_seen_subcommand_path merge'  -s v -l verbose -d 'verbose'
+complete -c chezmoi -f -n '__fish_chezmoi_seen_subcommand_path purge'  -s f -l force -d 'remove without prompting'
+complete -c chezmoi -f -n '__fish_chezmoi_seen_subcommand_path purge' -r  -l color -d 'colorize diffs'
+complete -c chezmoi -f -n '__fish_chezmoi_seen_subcommand_path purge' -r -s c -l config -d 'config file'
+complete -c chezmoi -f -n '__fish_chezmoi_seen_subcommand_path purge'   -l debug -d 'write debug logs'
+complete -c chezmoi -f -n '__fish_chezmoi_seen_subcommand_path purge' -r -s D -l destination -d 'destination directory'
+complete -c chezmoi -f -n '__fish_chezmoi_seen_subcommand_path purge'  -s n -l dry-run -d 'dry run'
+complete -c chezmoi -f -n '__fish_chezmoi_seen_subcommand_path purge'   -l follow -d 'follow symlinks'
+complete -c chezmoi -f -n '__fish_chezmoi_seen_subcommand_path purge'   -l remove -d 'remove targets'
+complete -c chezmoi -f -n '__fish_chezmoi_seen_subcommand_path purge' -r -s S -l source -d 'source directory'
+complete -c chezmoi -f -n '__fish_chezmoi_seen_subcommand_path purge'  -s v -l verbose -d 'verbose'
 complete -c chezmoi -f -n '__fish_chezmoi_seen_subcommand_path remove'  -s f -l force -d 'remove without prompting'
 complete -c chezmoi -f -n '__fish_chezmoi_seen_subcommand_path remove' -r  -l color -d 'colorize diffs'
 complete -c chezmoi -f -n '__fish_chezmoi_seen_subcommand_path remove' -r -s c -l config -d 'config file'

completions/chezmoi.zsh

@@ -42,6 +42,7 @@ function _chezmoi {
       "import:Import a tar archive into the source state"
       "init:Setup the source directory and update the destination directory to match the target state"
       "merge:Perform a three-way merge between the destination state, the source state, and the target state"
+      "purge:Purge all of chezmoi's configuration and data"
       "remove:Remove a target from the source state and the destination directory"
       "secret:Interact with a secret manager"
       "source:Run the source version control system command in the source directory"
@@ -122,6 +123,9 @@ function _chezmoi {
   merge)
     _chezmoi_merge
     ;;
+  purge)
+    _chezmoi_purge
+    ;;
   remove)
     _chezmoi_remove
     ;;
@@ -529,6 +533,20 @@ function _chezmoi_merge {
     '8: :_files '
 }
 
+function _chezmoi_purge {
+  _arguments \
+    '(-f --force)'{-f,--force}'[remove without prompting]' \
+    '--color[colorize diffs]:' \
+    '(-c --config)'{-c,--config}'[config file]:' \
+    '--debug[write debug logs]' \
+    '(-D --destination)'{-D,--destination}'[destination directory]:' \
+    '(-n --dry-run)'{-n,--dry-run}'[dry run]' \
+    '--follow[follow symlinks]' \
+    '--remove[remove targets]' \
+    '(-S --source)'{-S,--source}'[source directory]:' \
+    '(-v --verbose)'{-v,--verbose}'[verbose]'
+}
+
 function _chezmoi_remove {
   _arguments \
     '(-f --force)'{-f,--force}'[remove without prompting]' \

docs/REFERENCE.md

@@ -49,6 +49,7 @@ Manage your dotfiles securely across multiple machines.
   * [`import` *filename*](#import-filename)
   * [`manage` *targets*](#manage-targets)
   * [`merge` *targets*](#merge-targets)
+  * [`purge`](#purge)
   * [`remove` *targets*](#remove-targets)
   * [`rm` *targets*](#rm-targets)
   * [`secret`](#secret)
@@ -652,6 +653,20 @@ cannot be decrypted) a two-way merge is performed instead.
 
     chezmoi merge ~/.bashrc
 
+### `purge`
+
+Remove chezmoi's configuration, state, and source directory, but leave the
+target state intact.
+
+#### `-f`, `--force`
+
+Remove without prompting.
+
+#### `purge` examples
+
+    chezmoi purge
+    chezmoi purge --force
+
 ### `remove` *targets*
 
 Remove *targets* from both the source state and the destination directory.