lando-mutagen

Automatically start and stop mutagen syncs when starting and stopping a Lando project.

One of the main issues in having your development environment fully Dockerized on Windows and Mac is performance. Jumping the filesystem boundary (e.g. Mac FS -> Linux container FS or vice versa) causes performance to tank dramatically.

Luckily, Lando provides us with a nice performance feature where directories defined in excludes get one-way synced from the host to Docker named volumes. These Docker named volumes are then mounted at the appropriate locations in the containers. This solves the 'jumping-filesystem-boundary' performance issue.

A drawback of this is once files are in the named volumes, any changes to them do not get synced back to the host. This is problematic when developing, where your IDE needs the package folders (e.g. vendor or node_modules) for proper intellisense.

This is where this plugin comes in. Add a base Mutagen configuration file to your project, add some excludes in your Lando file and the plugin will do the following:

On lando start, create an amended mutagen configuration file with the appropriate directory syncs
After lando start, start up the mutagen syncs, such that modified files in the excludes directories will be synced back to the host
On lando stop, stop the mutagen syncs
After lando stop, remove the temporary amended mutagen configuration file

Requirements

Mutagen installed and running on your host
Lando (obviously :))

Installation

Mac Installation Script

curl -s https://raw.githubusercontent.com/francoisvdv/lando-mutagen/main/scripts/mac-install.sh | bash

The above command will download and run a script which installs the latest release of the plugin to ~/.lando/plugins/lando_mutagen

One-liner

# rm -rf ~/.lando/plugins/lando-mutagen # Delete previous install
mkdir -p ~/.lando/plugins && wget https://github.com/francoisvdv/lando-mutagen/releases/latest/download/release.zip -O /tmp/lando-mutagen.zip && unzip -o /tmp/lando-mutagen.zip -d ~/.lando/plugins && rm /tmp/lando-mutagen.zip

There is currently an issue with lando where dashes in a plugin's name prevent it from working. Until this is fixed, run this command to rename the plugin:

mv ~/.lando/plugins/lando-mutagen ~/.lando/plugins/lando_mutagen

Manual

Add the plugin in ~/.lando/plugins. Your directory will look like this:

 ~/.lando/plugins/lando-mutagen:
-rw-r--r--@ 1 user  group    193 Feb 21 17:07 BaseError.js
-rw-r--r--@ 1 user  group    455 Feb 21 17:07 Logger.js
-rw-r--r--@ 1 user  group   2338 Feb 21 17:07 Mutagen.js
-rw-r--r--@ 1 user  group   3766 Feb 21 17:07 MutagenConfigManipulator.js
-rw-r--r--@ 1 user  group   2465 Feb 21 17:07 app.js
-rw-r--r--@ 1 user  group    193 Feb 21 17:07 index.js
drwxr-xr-x@ 6 user  group    192 Feb 21 17:07 node_modules
-rw-r--r--@ 1 user  group   1277 Feb 21 17:07 package.json
-rw-r--r--@ 1 user  group  96577 Feb 21 17:07 yarn.lock

Lando will now load the plugin automatically on any lando CLI command. You can verify this by running lando info -v and searching for the line DEBUG ==> plugin lando-mutagen loaded from /Users/user/.lando/plugins/lando-mutagen/index.js

Usage

Have an existing Lando project containing a .lando.yml file
Add an excludes configuration section to it. E.g.
```
excludes:
  - var
  - vendor
```
Note that you might have to do a lando rebuild after this.

Add a .lando.mutagen.yml file, which contains your base mutagen configuration. Example contents (enough to get started):

sync:
    defaults:
        flushOnCreate: true
        ignore:
            vcs: false
        permissions:
            defaultFileMode: 644
            defaultDirectoryMode: 755

Run lando start. This might take some time due to the file syncs.
Profit! File changes in the excludes directories will now be synced back to the host and you can enjoy close-to linux-native Docker filesystem performance.

Development

Setup

yarn install
lefthook install

francoisvdv / lando-mutagen