Merge pull request #4 from daltonfury42/master

Add auto commenting to PR with the preview url.

Dockerfile

@@ -12,6 +12,7 @@ LABEL maintainer="Yinlin Chen <[email protected]>"
 ENV AWSCLI_VERSION='1.18.14'
 
 RUN pip install --quiet --no-cache-dir awscli==${AWSCLI_VERSION}
+RUN apk --no-cache add curl
 
 ADD entrypoint.sh /entrypoint.sh
-ENTRYPOINT ["/entrypoint.sh"]
+ENTRYPOINT ["/entrypoint.sh"]

README.md

@@ -42,6 +42,7 @@ jobs:
       env:
         AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
         AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         AmplifyAppId: ${{ secrets.AmplifyAppId }}
         BackendEnvARN: ${{ secrets.BackendEnvARN }}
         AWS_REGION: 'us-east-1'
@@ -58,6 +59,7 @@ The following settings must be passed as environment variables as shown in the e
 | `AWS_REGION` | The region where you created your bucket. Set to `us-east-1` by default. [Full list of regions here.](https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/using-regions-availability-zones.html#concepts-available-regions) | `env` | **Yes** | `us-east-1` |
 | `AmplifyAppId` | The unique ID for an Amplify app. For example, `d6a88fjhifqlks` | `secret env` | **Yes** | N/A |
 | `BackendEnvARN` | The Amazon Resource Name (ARN) for a backend environment that is part of an Amplify app. | `secret env` | **Yes** | N/A |
+| `GITHUB_TOKEN` | The GITHUB_TOKEN, should be supplied if a comment with the preview URL is to be posted on the PR | `github env` | No | N/A |
 | `NewBackendEnvARN` | The Amazon Resource Name (ARN) for a backend environment that is part of an Amplify app. | `secret env` | No | N/A |
 
 ## Inputs

action.yml

@@ -7,13 +7,19 @@ inputs:
   amplify_command:
     description: 'amplify command: SUPPORTED: [deploy, delete]'
     required: true
+  comments_url:
+    description: 'Github comments url'
+    default: "${{ github.event.pull_request.comments_url }}"
+    required: false
 
 runs:
   using: 'docker'
   image: 'Dockerfile'
   args:
     - ${{ inputs.branch_name }}
     - ${{ inputs.amplify_command }}
+    - ${{ inputs.comments_url }}
+
 branding:
   icon: 'git-pull-request'
   color: 'blue'

entrypoint.sh

@@ -2,7 +2,11 @@
 
 set -e
 
-if [ -z "$AWS_ACCESS_KEY_ID" ] && [ -z "$AWS_SECRET_ACCESS_KEY" ] ; then
+BRANCH_NAME=$1
+AMPLIFY_COMMAND=$2
+COMMENT_URL=$3
+
+if [ -z "$AWS_ACCESS_KEY_ID" ] || [ -z "$AWS_SECRET_ACCESS_KEY" ] ; then
   echo "You must provide the action with both AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY environment variables in order to deploy"
   exit 1
 fi
@@ -21,12 +25,12 @@ if [ -z "$BackendEnvARN" ] ; then
   exit 1
 fi
 
-if [ -z "$1" ] ; then
+if [ -z "$BRANCH_NAME" ] ; then
   echo "You must provide branch name input parameter in order to deploy"
   exit 1
 fi
 
-if [ -z "$2" ] ; then
+if [ -z "$AMPLIFY_COMMAND" ] ; then
   echo "You must provide amplify_command input parameter in order to deploy"
   exit 1
 fi
@@ -38,23 +42,23 @@ ${AWS_REGION}
 text
 EOF
 
-case $2 in
+case $AMPLIFY_COMMAND in
 
   deploy)
-    sh -c "aws amplify create-branch --app-id=${AmplifyAppId} --branch-name=$1  \
+    sh -c "aws amplify create-branch --app-id=${AmplifyAppId} --branch-name=$BRANCH_NAME  \
               --backend-environment-arn=${BackendEnvARN} --region=${AWS_REGION}"
 
     sleep 10
 
-    sh -c "aws amplify start-job --app-id=${AmplifyAppId} --branch-name=$1 --job-type=RELEASE --region=${AWS_REGION}"
+    sh -c "aws amplify start-job --app-id=${AmplifyAppId} --branch-name=$BRANCH_NAME --job-type=RELEASE --region=${AWS_REGION}"
     ;;
 
   delete)
-    sh -c "aws amplify delete-branch --app-id=${AmplifyAppId} --branch-name=$1 --region=${AWS_REGION}"
+    sh -c "aws amplify delete-branch --app-id=${AmplifyAppId} --branch-name=$BRANCH_NAME --region=${AWS_REGION}"
     ;;
 
   *)
-    echo "amplify command $2 is invalid or not supported"
+    echo "amplify command $AMPLIFY_COMMAND is invalid or not supported"
     exit 1
     ;;
 
@@ -65,4 +69,11 @@ null
 null
 null
 text
-EOF
+EOF
+
+if [ -z "$GITHUB_TOKEN" ] ; then
+  echo "Skipping comment as GITHUB_TOKEN not provided"
+else 
+  SUBDOMAIN_NAME=$(echo $BRANCH_NAME | sed 's/[^a-zA-Z0-9-]/-/')
+  curl -X POST $COMMENT_URL -H "Content-Type: application/json" -H "Authorization: token $GITHUB_TOKEN" --data '{ "body": "'"Preview branch generated at https://$SUBDOMAIN_NAME.${AmplifyAppId}.amplifyapp.com"'" }'
+fi