init

.zprezto/modules/emacs/README.md

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+Emacs
+=====
+
+Enables Emacs dependency management.
+
+Dependency management
+---------------------
+
+[Carton][1] installs and manages Emacs packages for Emacs package development
+and Emacs configuration.
+
+This module prepends the Carton directory to the path variable to enable the
+execution of `carton`.
+
+Aliases
+-------
+
+### Carton
+
+  - `cai` installs dependencies.
+  - `cau` updates dependencies.
+  - `caI` initializes the current directory for dependency management.
+  - `cae` executes a command which correct dependencies.
+
+Authors
+-------
+
+*The authors of this module should be contacted via the [issue tracker][2].*
+
+  - [Sebastian Wiesner](https://github.com/lunaryorn)
+
+[1]: https://github.com/rejeep/carton
+[2]: https://github.com/sorin-ionescu/prezto/issues

.zprezto/modules/emacs/init.zsh

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+#
+# Configures Emacs dependency management.
+#
+# Authors: Sebastian Wiesner <lunaryorn@gmail.com>
+#
+
+# Return if requirements are not found.
+if [[ ! -d "$HOME/.cask" ]]; then
+  return 1
+fi
+
+# Prepend Cask bin directory.
+path=($HOME/.cask/bin $path)
+
+# Load Carton completion
+source "$HOME/.cask/etc/cask_completion.zsh" 2> /dev/null
+
+#
+# Aliases
+#
+
+alias cai='cask install'
+alias cau='cask update'
+alias caI='cask init'
+alias cae='cask exec'