From db629f83dce039607baa15210230e41140cbdb62 Mon Sep 17 00:00:00 2001
From: Jonathan Perkin <jonathan@perkin.org.uk>
Date: Tue, 16 Jul 2024 13:38:36 +0100
Subject: [PATCH] support cached pkglint build

---
 .github/workflows/pkglint.yaml | 29 +++++++++++++++++++++++++++--
 1 file changed, 27 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/pkglint.yaml b/.github/workflows/pkglint.yaml
index 011351be90ab..4c63081d94d0 100644
--- a/.github/workflows/pkglint.yaml
+++ b/.github/workflows/pkglint.yaml
@@ -1,5 +1,7 @@
 name: Verify pkglint
 on: [push]
+env:
+  PKGLINT_VERSION: v23.4.2
 jobs:
   pkglint:
     runs-on: ubuntu-latest
@@ -7,17 +9,40 @@ jobs:
       - name: Checkout pkgsrc
         uses: actions/checkout@v4
 
-      - name: Checkout pkglint
+      - name: Look for cached build of pkglint ${{ env.PKGLINT_VERSION }}
+        id: pkglint-artifact
+          uses: LIT-Protocol/artifact-exists-action@v0
+          with:
+            name: pkglint-${{ env.PKGLINT_VERSION }}
+
+      - name: Download cached build of pkglint ${{ env.PKGLINT_VERSION }}
+        if: steps.pkglint-artifact.outputs.exists == 'true'
+        uses: actions/download-artifact@v4
+        with:
+          name: pkglint-${{ env.PKGLINT_VERSION }}
+
+      - name: Checkout pkglint ${{ env.PKGLINT_VERSION }}
+        if: steps.pkglint-artifact.outputs.exists == 'false'
         uses: actions/checkout@v4
         with:
           repository: rillig/pkglint
           path: pkglint
+          ref: ${{ env.PKGLINT_VERSION }}
 
-      - name: Build latest pkglint
+      - name: Build pkglint ${{ env.PKGLINT_VERSION }}
+        if: steps.pkglint-artifact.outputs.exists == 'false'
         run: |
           cd pkglint/v23
           go install -v ./...
 
+      - name: Save pkglint artifact
+        if: steps.pkglint-artifact.outputs.exists == 'false'
+        uses: actions/upload-artifact@v4
+        with:
+          name: pkglint-${{ env.PKGLINT_VERSION }}
+          path: |
+            ~/go/bin/
+
       - name: Get changed files
         id: changed-files
         uses: tj-actions/changed-files@v44