Add 'create' directive to create directories

README.md

@@ -105,6 +105,10 @@ The conventional name for the configuration file is `install.conf.yaml`.
     ~/.vim: vim
     ~/.vimrc: vimrc
 
+- create:
+    - ~/downloads
+    - ~/.vim/undo-history
+
 - shell:
   - [git submodule update --init --recursive, Installing submodules]
 ```
@@ -119,9 +123,9 @@ Configuration
 
 Dotbot uses YAML or JSON-formatted configuration files to let you specify how
 to set up your dotfiles. Currently, Dotbot knows how to [link](#link) files and
-folders, execute [shell](#shell) commands, and [clean](#clean) directories of
-broken symbolic links. Dotbot also supports user [plugins](#plugins) for custom
-commands.
+folders, [create](#create) folders, execute [shell](#shell) commands, and
+[clean](#clean) directories of broken symbolic links. Dotbot also supports user
+[plugins](#plugins) for custom commands.
 
 **Ideally, bootstrap configurations should be idempotent. That is, the
 installer should be able to be run multiple times without causing any
@@ -219,6 +223,25 @@ the following config files equivalent:
       relink: true
 ```
 
+### Create
+
+Create commands specify empty directories to be created.  This can be useful
+for scaffolding out folders or parent folder structure required for various
+apps, plugins, shell commands, etc.
+
+#### Format
+
+Create commands are specified as an array of directories to be created.
+
+#### Example
+
+```yaml
+- create:
+    - ~/projects
+    - ~/downloads
+    - ~/.vim/undo-history
+```
+
 ### Shell
 
 Shell commands specify shell commands to be run. Shell commands are run in the
@@ -243,8 +266,8 @@ command itself.
 
 ```yaml
 - shell:
-  - mkdir -p ~/src
-  - [mkdir -p ~/downloads, Creating downloads directory]
+  - chsh -s $(which zsh)
+  - [chsh -s $(which zsh), Making zsh the default shell]
   -
     command: read var && echo Your variable is $var
     stdin: true

dotbot/cli.py

@@ -56,7 +56,7 @@ def main():
             log.use_color(False)
         plugin_directories = list(options.plugin_dirs)
         if not options.disable_built_in_plugins:
-            from .plugins import Clean, Link, Shell
+            from .plugins import Clean, Create, Link, Shell
         plugin_paths = []
         for directory in plugin_directories:
           for plugin_path in glob.glob(os.path.join(directory, '*.py')):

dotbot/plugins/__init__.py

@@ -1,3 +1,4 @@
 from .clean import Clean
+from .create import Create
 from .link import Link
 from .shell import Shell

dotbot/plugins/create.py

@@ -0,0 +1,53 @@
+import os
+import glob
+import shutil
+import dotbot
+import subprocess
+
+
+class Create(dotbot.Plugin):
+    '''
+    Create empty paths.
+    '''
+
+    _directive = 'create'
+
+    def can_handle(self, directive):
+        return directive == self._directive
+
+    def handle(self, directive, data):
+        if directive != self._directive:
+            raise ValueError('Create cannot handle directive %s' % directive)
+        return self._process_paths(data)
+
+    def _process_paths(self, paths):
+        success = True
+        for path in paths:
+            path = os.path.expandvars(os.path.expanduser(path))
+            success &= self._create(path)
+        if success:
+            self._log.info('All paths have been set up')
+        else:
+            self._log.error('Some paths were not successfully set up')
+        return success
+
+    def _exists(self, path):
+        '''
+        Returns true if the path exists.
+        '''
+        path = os.path.expanduser(path)
+        return os.path.exists(path)
+
+    def _create(self, path):
+        success = True
+        if not self._exists(path):
+            self._log.debug('Trying to create path %s' % path)
+            try:
+                self._log.lowinfo('Creating path %s' % path)
+                os.makedirs(path)
+            except OSError:
+                self._log.warning('Failed to create path %s' % path)
+                success = False
+        else:
+            self._log.lowinfo('Path exists %s' % path)
+        return success

test/tests/create.bash

@@ -0,0 +1,23 @@
+test_description='create folders'
+. '../test-lib.bash'
+
+test_expect_success 'run' '
+run_dotbot <<EOF
+- create:
+    - ~/somedir
+    - ~/nested/somedir
+EOF
+'
+
+test_expect_success 'test' '
+[ -d ~/somedir ] &&
+[ -d ~/nested/somedir ]
+'
+
+test_expect_success 'run 2' '
+run_dotbot <<EOF
+- create:
+    - ~/somedir
+    - ~/nested/somedir
+EOF
+'