set env variables based on Github actions

Author: Vladimir Kotal

.github/workflows/javadoc.yml

@@ -1,6 +1,5 @@
 name: Upload javadocs to Github pages
 
-# TODO: do not run on tagged (release) build
 on:
   push:
     branches:
@@ -28,4 +27,9 @@ jobs:
         key: ${{ runner.os }}-m2-${{ hashFiles('**/pom.xml') }}
         restore-keys: ${{ runner.os }}-m2
     - name: Refresh Javadoc
+      env:
+        OPENGROK_REPO_SLUG: ${{ github.repository }}
+        OPENGROK_PULL_REQUEST: ${{ github.head_ref }}
+        OPENGROK_REF: ${{ github.ref }}
+	OPENGROK_BUILD_DIR: ${{ github.workspace }}
       run: ./dev/javadoc.sh

dev/javadoc.sh

@@ -3,9 +3,13 @@
 set -e
 set -x
 
-if [[ "${TRAVIS_REPO_SLUG}" != "oracle/opengrok" ||
-    "${TRAVIS_PULL_REQUEST}" != "false" ||
-    "${TRAVIS_BRANCH}" != "master" ]]; then
+if [[ -n $OPENGROK_REF && $OPENGROK_REF == refs/heads/* ]]; then
+	OPENGROK_BRANCH=${OPENGROK_REF#"refs/heads/"}
+fi
+
+if [[ "${OPENGROK_REPO_SLUG}" != "oracle/opengrok" ||
+    -n "${OPENGROK_PULL_REQUEST}" ||
+    "${OPENGROK_BRANCH}" != "master" ]]; then
 	echo "Skipping Javadoc refresh"
 	exit 0
 fi
@@ -24,7 +28,7 @@ cd "$BRANCH"
 if [[ -d ./javadoc ]]; then
 	git rm -rf ./javadoc
 fi
-cp -Rf ${TRAVIS_BUILD_DIR}/target/site/apidocs ./javadoc
+cp -Rf ${OPENGROK_BUILD_DIR}/target/site/apidocs ./javadoc
 git add -f ./javadoc
 git commit -m "Lastest javadoc auto-pushed to branch $BRANCH"
 git push -fq origin "$BRANCH"