Merge pull request #11 from ajschmidt8/add-rapids-is-stable-build

Add `rapids-is-stable-build` and permissions checker

.github/workflows/prs.yaml

@@ -5,8 +5,12 @@ on:
     paths:
       - "tools/*"
 
+defaults:
+  run:
+    shell: bash
+
 jobs:
-  shellcheck:
+  checks:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
@@ -15,3 +19,23 @@ jobs:
         uses: ludeeus/action-shellcheck@master
         with:
           scandir: "./tools"
+      - name: Check Permissions
+        run: |
+          # Executable bit indices
+          USER_EXEC_IND=3
+          GROUP_EXEC_IND=6
+          ELSE_EXEC_IND=9
+
+          for FILE in tools/*; do
+            PERMISSIONS=$(stat -c "%A" "${FILE}")
+            for IND in "${USER_EXEC_IND}" "${GROUP_EXEC_IND}" "${ELSE_EXEC_IND}"; do
+              EXEC_PERM="${PERMISSIONS:$IND:1}"
+              if [ "${EXEC_PERM}" != "x" ]; then
+                ls -l tools/
+                echo ""
+                echo "${FILE} does not have the correct permissions."
+                echo "Ensure are tools are executable by everyone and try again."
+                exit 1
+              fi
+            done
+          done

tools/rapids-is-stable-build

@@ -0,0 +1,14 @@
+#!/bin/bash
+# A utility script that examines environment variables provided by
+# GitHub Actions to determine whether the current build is a "stable" build.
+# A "stable" build occurs when the GITHUB_REF environment variable matches
+# the pattern "refs/tags/vYY.MM.PP".
+# Example:
+#    if ./tools/rapids-is-stable-build; then echo "hi"; fi
+set -e
+
+if [[ "${GITHUB_REF}" =~ ^refs/tags/v[0-9]{2}.[0-9]{2}.[0-9]{2}$ ]]; then
+  exit 0
+fi
+
+exit 1