Add use_lxd option (#4)

.github/workflows/test.yml

@@ -45,3 +45,23 @@ jobs:
  snapcraft_token: ${{ secrets.snapcraft_token }}
  - name: User should be logged in
  run: snapcraft whoami
+
+ # Install with lxd
+ lxd:
+ runs-on: ${{ matrix.os }}
+ strategy:
+ matrix:
+ os: [ubuntu-latest]
+ steps:
+ - name: Check out Git repository
+ uses: actions/checkout@v1
+ - name: Run action
+ uses: ./
+ - name: lxd should not be available
+ run: "! /snap/bin/lxd waitready"
+ - name: Run action requesting lxd
+ uses: ./
+ with:
+ use_lxd: true
+ - name: lxd should be installed
+ run: "/snap/bin/lxd version"

README.md

@@ -34,7 +34,7 @@ jobs:
 
  steps:
  - name: Check out Git repository
- uses: actions/checkout@v1
+ uses: actions/checkout@v2
 
  - name: Install Snapcraft
  uses: samuelmeuli/action-snapcraft@v1
@@ -66,6 +66,19 @@ Finally, add the following option to your workflow step:
  skip_install: true # optional, if already installed in an earlier step
 ```
 
+### Build using LXD
+
+LXD (`runs-on: ubuntu-latest`) is for now likely the easiest way to get `snapcraft` to build snaps. This is an alternative to using `multipass` (GitHub VMs give the error `launch failed: CPU does not support KVM extensions.` when trying to use `multipass`). It takes between 1 to ~10 minutes to set up `lxd` (varies wildly between runs).
+
+```yml
+- name: Install Snapcraft with LXD
+ uses: samuelmeuli/action-snapcraft@v1
+ with:
+ use_lxd: true
+- name: Build snap
+ run: snapcraft --use-lxd
+```
+
 ## Development
 
 Suggestions and contributions are always welcome! Please discuss larger changes via issue before submitting a pull request.

action.yml

@@ -9,6 +9,9 @@ inputs:
  skip_install:
  description: Skip installation (login only)
  required: false
+ use_lxd:
+ description: Whether to install and configure lxd
+ required: false
 
 runs:
  using: node12

index.js

@@ -31,8 +31,17 @@ const getPlatform = () => {
  * Installs Snapcraft on Linux
  */
 const runLinuxInstaller = () => {
+ const lxd = process.env.INPUT_USE_LXD === "true";
  run("sudo snap install snapcraft --classic");
+ if (lxd) {
+ run("sudo snap install lxd");
+ }
  run("sudo chown root:root /"); // Fix root ownership
+ if (lxd) {
+ run("sudo /snap/bin/lxd.migrate -yes");
+ run("sudo /snap/bin/lxd waitready");
+ run("sudo /snap/bin/lxd init --auto");
+ }
 };
 
 /**