Test always-new

.github/workflows/test-apply.yaml

@@ -1154,3 +1154,22 @@ jobs:
             echo "::error:: run_id should not be set"
             exit 1
           fi
+
+  long_outputs:
+    runs-on: ubuntu-latest
+    name: Apply a plan with long outputs
+    env:
+      GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Plan
+        uses: ./terraform-plan
+        with:
+          path: tests/workflows/test-apply/long_outputs
+
+      - name: Apply
+        uses: ./terraform-apply
+        with:
+          path: tests/workflows/test-apply/long_outputs

.github/workflows/test-plan.yaml

@@ -872,3 +872,36 @@ jobs:
         with:
           path: tests/workflows/test-plan/plan
           label: arm64
+
+  always_new:
+    runs-on: ubuntu-latest
+    name: always-new
+    env:
+      GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Plan with label
+        uses: ./terraform-plan
+        with:
+          path: tests/workflows/test-plan/always-new
+          label: always-new SHOULD BE OUTDATED
+
+      - name: Plan 2 with label
+        uses: ./terraform-plan
+        with:
+          path: tests/workflows/test-plan/always-new
+          label: always-new SHOULD BE OUTDATED
+          add_github_comment: always-new
+
+      - name: Plan
+        uses: ./terraform-plan
+        with:
+          path: tests/workflows/test-plan/always-new
+
+      - name: Plan 2
+        uses: ./terraform-plan
+        with:
+          path: tests/workflows/test-plan/always-new
+          add_github_comment: always-new

image/entrypoints/plan.sh

@@ -38,7 +38,7 @@ if [[ -z "$PLAN_OUT" ]]; then
 fi
 
 if [[ "$GITHUB_EVENT_NAME" == "pull_request" || "$GITHUB_EVENT_NAME" == "issue_comment" || "$GITHUB_EVENT_NAME" == "pull_request_review_comment" || "$GITHUB_EVENT_NAME" == "pull_request_target" || "$GITHUB_EVENT_NAME" == "pull_request_review" || "$GITHUB_EVENT_NAME" == "repository_dispatch" ]]; then
-    if [[ "$INPUT_ADD_GITHUB_COMMENT" == "true" || "$INPUT_ADD_GITHUB_COMMENT" == "changes-only" ]]; then
+    if [[ "$INPUT_ADD_GITHUB_COMMENT" == "true" || "$INPUT_ADD_GITHUB_COMMENT" == "changes-only" || "$INPUT_ADD_GITHUB_COMMENT" == "always-new" ]]; then
 
         if [[ ! -v TERRAFORM_ACTIONS_GITHUB_TOKEN ]]; then
             echo "GITHUB_TOKEN environment variable must be set to add GitHub PR comments"

image/src/github_pr_comment/__main__.py

@@ -381,48 +381,51 @@ def is_approved(proposed_plan: str, comment: TerraformComment) -> bool:
         debug('Approving plan based on plan text')
         return plan_cmp(proposed_plan, comment.body)
 
+def truncate(text: str, max_size: int, too_big_message: str) -> str:
+    lines = []
+    total_size = 0
+
+    for line in text.splitlines():
+        line_size = len(line.encode()) + 1  # + newline
+        if total_size + line_size > max_size:
+            lines.append(too_big_message)
+            break
+
+        lines.append(line)
+        total_size += line_size
+
+    return '\n'.join(lines)
+
 def format_plan_text(plan_text: str) -> Tuple[str, str]:
     """
     Format the given plan for insertion into a PR comment
     """
 
     max_body_size = 50000  # bytes
 
-    def truncate(t):
-        lines = []
-        total_size = 0
-
-        for line in t.splitlines():
-            line_size = len(line.encode()) + 1  # + newline
-            if total_size + line_size > max_body_size:
-                lines.append('Plan is too large to fit in a PR comment. See the full plan in the workflow log.')
-                break
-
-            lines.append(line)
-            total_size += line_size
-
-        return '\n'.join(lines)
-
     if len(plan_text.encode()) > max_body_size:
         # needs truncation
-        return 'trunc', truncate(plan_text)
+        return 'trunc', truncate(plan_text, max_body_size, 'Plan is too large to fit in a PR comment. See the full plan in the workflow log.')
     else:
         return 'text', plan_text
 
-def format_output_status(outputs: Optional[dict]) -> str:
+def format_output_status(outputs: Optional[dict], remaining_size: int) -> str:
     status = f':white_check_mark: Plan applied in {job_markdown_ref()}'
     if outputs is not None:
         stripped_output = render_outputs(outputs).strip()
-        if '\n' in stripped_output:
-            status += f'''\n<details open><summary>Outputs</summary>
-
-        ```hcl
-        {stripped_output}
-        ```
-        </details>
-        '''
-        else:
-            status += f'\nOutputs: `{stripped_output}`'
+
+        if len(stripped_output) > remaining_size:
+            stripped_output = truncate(stripped_output, remaining_size, 'Outputs are too large to fit in a PR comment. See the full outputs in the workflow log.')
+
+        open_att = ' open' if len(stripped_output.splitlines()) > 6 else ''
+
+        status += f'''\n<details{open_att}><summary>Outputs</summary>
+
+```hcl
+{stripped_output}
+```
+</details>
+'''
 
     return status
 
@@ -533,7 +536,10 @@ def main() -> int:
             return 1
         else:
             outputs = read_outputs(sys.argv[2])
-            comment = update_comment(github, comment, headers=comment.headers | {'closed': True}, status=format_output_status(outputs))
+
+            remaining_size = 55000 - len(comment.body)
+
+            comment = update_comment(github, comment, headers=comment.headers | {'closed': True}, status=format_output_status(outputs, remaining_size))
 
     elif sys.argv[1] == 'get':
         if comment.comment_url is None:

image/src/github_pr_comment/comment.py

@@ -38,6 +38,7 @@ class TerraformComment:
         'plan_hash',      # A deterministic hash of the plan (without warnings or unchanged attributes, eventually with unmasked variables)
         'variables_hash', # A hash of input variables and values
         'truncated'       # If the plan text has been truncated (should not be used to approve plans, and will not show a complete diff)
+        'closed'          # If the comment has been closed for modifications
     ]
 
     """

tests/workflows/test-apply/long_outputs/main.tf

@@ -0,0 +1,8 @@
+variable "input" {
+    type = string
+    default = "This is my long string\n"
+}
+
+output "output" {
+  value = repeat(var.input, 5000)
+}

tests/workflows/test-plan/always_new/main.tf

@@ -0,0 +1,7 @@
+resource "random_string" "my_string" {
+  length      = 11
+}
+
+output "s" {
+  value = "string"
+}