Support for custom deploy user (enriikke#54)

action.yml

@@ -27,6 +27,18 @@ inputs:
     description: "The directory where your Gatsby source files are at. `gatsby build` will run from this directory."
     required: false
     default: "."
+  commit-message:
+    description: "The commit message used for pushing changes to the deploy branch. Use the identifier {sha} to replace with the commit SHA."
+    required: false
+    default: ""
+  git-config-name:
+    description: "The name under which the deploy commit is pushed to the deploy branch."
+    required: false
+    default: ""
+  git-config-email:
+    description: "The email adress under which the deploy commit is pushed to the deploy branch."
+    required: false
+    default: ""
 runs:
   using: "node12"
   main: "./dist/index.js"

index.ts

@@ -64,17 +64,32 @@ async function run(): Promise<void> {
     console.log('You can configure the deploy branch by setting the `deploy-branch` input for this action.')
 
     await exec.exec(`git init`, [], {cwd: `${workingDir}/public`})
-    await exec.exec(`git config user.name`, [github.context.actor], {
-      cwd: `${workingDir}/public`,
-    })
-    await exec.exec(`git config user.email`, [`${github.context.actor}@users.noreply.github.com`], {
+    await exec.exec(`git config user.name`, [core.getInput('git-config-name') || github.context.actor], {
       cwd: `${workingDir}/public`,
     })
+    await exec.exec(
+      `git config user.email`,
+      [core.getInput('git-config-email') || `${github.context.actor}@users.noreply.github.com`],
+      {
+        cwd: `${workingDir}/public`,
+      },
+    )
 
     await exec.exec(`git add`, ['.'], {cwd: `${workingDir}/public`})
-    await exec.exec(`git commit`, ['-m', `deployed via Gatsby Publish Action 🎩 for ${github.context.sha}`], {
-      cwd: `${workingDir}/public`,
-    })
+
+    const commitMessageInput = core.getInput('commit-message')
+    await exec.exec(
+      `git commit`,
+      [
+        '-m',
+        commitMessageInput
+          ? commitMessageInput.replace('{sha}', github.context.sha)
+          : `deployed via Gatsby Publish Action 🎩 for ${github.context.sha}`,
+      ],
+      {
+        cwd: `${workingDir}/public`,
+      },
+    )
 
     await exec.exec(`git push`, ['-f', repoURL, `master:${deployBranch}`], {
       cwd: `${workingDir}/public`,