From 954de9f2f9865736a1156f8b17b8aa361bdc0bfb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=A9bastien=20HOUZ=C3=89?=
 <sebastien.houze@french-hospitality.fr>
Date: Sun, 3 Jan 2021 21:37:13 +0100
Subject: [PATCH] Initial commit

---
 README.md   | 33 +++++++++++++++++++++++++++++
 action.yaml | 61 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 94 insertions(+)
 create mode 100644 README.md
 create mode 100644 action.yaml

diff --git a/README.md b/README.md
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index 0000000..226a5c3
--- /dev/null
+++ b/README.md
@@ -0,0 +1,33 @@
+# Review terraform plan
+
+Run and cleanup terraform plan output, store it into an output to allow reviewing it
+## Inputs
+### `terraform-environment`
+
+**Required** Terraform environment, used to load corresponding var file named `<terraform-environment>.tfvars`
+into the working directory. Default `"preproduction"`.
+### `working-directory`
+
+**Required** Working directory where terraform plan is executed. Default `"."`.
+
+## Example usage
+
+
+Here
+
+```yaml
+- uses: gogaille/review-terraform-plan
+  id: terraform-plan
+  env:
+    AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
+    AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
+  with:
+    terraform-environment: 'preproduction'
+    working-directory: 'infrastructure'
+
+- uses: phulsechinmay/rewritable-pr-comment@v0.3
+  with:
+    message: ${{ steps.terraform-plan.outputs.plan-details }}
+    GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+    COMMENT_IDENTIFIER: 'terraform-plan-output'
+```
diff --git a/action.yaml b/action.yaml
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+++ b/action.yaml
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+name: Review terraform plan
+description: >
+  Run and cleanup terraform plan output, store it into an output to allow reviewing it.
+
+inputs:
+  terraform-environment:
+    description: >
+      Terraform environment, used to load corresponding var file named
+      <terraform-environment>.tfvars into the working directory.
+    required: true
+    default: "preproduction"
+  working-directory:
+    description: working directory
+    required: true
+    default: "."
+
+outputs:
+  plan-details:
+    description: >
+      Clean terraform plan, in HTML format, ready to integrate in a comment of
+      corresponding pull request.
+    value: ${{ steps.plan.outputs.plan-details }}
+
+runs:
+  using: "composite"
+  steps:
+    - id: plan
+      name: terraform plan for review
+      shell: bash
+      working-directory: ${{ inputs.working-directory }}
+      run: |
+        plan=$(terraform plan -lock=false -no-color -var-file=${{ inputs.terraform-environment }}.tfvars)
+        title=$(echo -e "$plan" | grep -e '^Plan:' | sed -E 's|Plan:||')
+        # remove plan noise
+        plan=$(
+          echo -e "$plan" | \
+          tail -n +$(
+            echo -e "$plan" | \
+            grep -nE 'Terraform will perform the following actions|No changes. Infrastructure is up-to-date' | \
+            cut -d':' -f1
+          )
+        )
+
+        message=$(printf "
+          <details>
+          <summary><b>Terraform plan:</b> %s %s</summary>
+
+          \`\`\`hcl
+          %s
+          \`\`\`
+
+          </details>
+        " "${title:-No changes. Infrastructure is up-to-date.}" "$(git rev-parse --short $GITHUB_SHA)" "$plan")
+
+        message="${message//'%'/'%25'}"
+        message="${message//$'\n'/'%0A'}"
+        message="${message//$'\r'/'%0D'}"
+
+        echo -e "$plan"
+        echo ""
+        echo ::set-output name=plan-details::"$message"