From 490df640b47cb252636a9476552d7ecea01a11e7 Mon Sep 17 00:00:00 2001
From: Vijay A <avijayr@protonmail.com>
Date: Tue, 25 May 2021 07:10:16 +0530
Subject: Skip building in the 'script' stage of travis if no changes found.

---
 .travis.yml | 60 +++++++++++++++++++++++++++++++++++++-----------------------
 1 file changed, 37 insertions(+), 23 deletions(-)

(limited to '.travis.yml')

diff --git a/.travis.yml b/.travis.yml
index ae29f3b4c..aefeedfc7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -45,42 +45,56 @@ before_install:
       git remote add source https://${GH_TOKEN}@github.com/getferdi/ferdi.git > /dev/null 2>&1
       git fetch source
       git merge --no-ff --commit -m "Merge remote-tracking branch 'source/develop' into HEAD [skip ci]" source/develop
-      CHANGES_COUNT=$(git diff --stat HEAD origin/nightly | wc -l)
+      CHANGES_COUNT=$(git diff --shortstat HEAD origin/$TRAVIS_BRANCH | wc -l)
       echo "Travis event type: $TRAVIS_EVENT_TYPE"
       echo "Number of changes: $CHANGES_COUNT"
       if [ $CHANGES_COUNT -eq 0 -a $TRAVIS_EVENT_TYPE == "cron" ]; then
-        echo "Terminating the build since there are no changes in a cron-triggered build"
-        travis_terminate 0
+        export SHOULD_CONTINUE_BUILD="false"
+        echo "Exporting SHOULD_CONTINUE_BUILD to false for future stages"
       else
         echo "Found changes, proceeding with submodule updates"
         git submodule update --remote --force
-        git commit -am "Update submodules [skip ci]" --no-verify || true
+        git commit -am "Update submodules [skip ci]" --no-verify
+        echo "Completed merging from develop branch and upgrading submodules"
       fi
-      echo "Completed merging from develop branch and upgrading submodules"
     fi
 install:
-  - travis_retry npm cache clean -f || travis_terminate 1
-  - travis_retry npm uninstall node-gyp || travis_terminate 1
-  - travis_retry npm i -g node-gyp@8.0.0 || travis_terminate 1
-  - cd recipes && npm i && npm run package && cd .. || travis_terminate 1
-  - travis_retry npx lerna bootstrap || travis_terminate 1
+  - |
+    if [ "$SHOULD_CONTINUE_BUILD" == "false" ]; then
+      echo "Skipping install stage since SHOULD_CONTINUE_BUILD: $SHOULD_CONTINUE_BUILD"
+    else
+      travis_retry npm cache clean -f || travis_terminate 1
+      travis_retry npm uninstall node-gyp || travis_terminate 1
+      travis_retry npm i -g node-gyp@8.0.0 || travis_terminate 1
+      cd recipes && npm i && npm run package && cd .. || travis_terminate 1
+      travis_retry npx lerna bootstrap || travis_terminate 1
+    fi
 before_script:
-  - npm run lint && npm run test || travis_terminate 1
+  - |
+    if [ "$SHOULD_CONTINUE_BUILD" == "false" ]; then
+      echo "Skipping before_script stage since SHOULD_CONTINUE_BUILD: $SHOULD_CONTINUE_BUILD"
+    else
+      npm run lint && npm run test || travis_terminate 1
+    fi
 script:
   - |
-    echo "Building for branch: $TRAVIS_BRANCH"
-    if [ $TRAVIS_BRANCH == "release" ]; then
-      travis_retry travis_wait 100 npm run build -- --publish always -c.publish.provider=github -c.publish.owner=getferdi -c.publish.repo=ferdi -c.mac.identity=null || travis_terminate 1
-    elif [ $TRAVIS_BRANCH == "nightly" ]; then
-      git commit -am "Apply linter fixes [skip ci]" --no-verify
-      npm version prerelease --preid=nightly -m "%s and trigger AppVeyor nightly build [skip travisci]" || travis_terminate 1
-      if [ $TRAVIS_OS_NAME == "osx" ]; then
-        git remote add nightly https://${GH_TOKEN}@github.com/getferdi/ferdi.git > /dev/null 2>&1
-        git push -qu nightly HEAD:nightly --no-verify >/dev/null 2>&1
-      fi
-      travis_retry travis_wait 100 npm run build -- --publish always -c.publish.provider=github -c.publish.owner=getferdi -c.publish.repo=nightlies || travis_terminate 1
+    if [ "$SHOULD_CONTINUE_BUILD" == "false" ]; then
+      echo "Terminating the build since there are no changes in a cron-triggered build"
+      travis_terminate 0
+      exit 0  # Note: Bug fix since 'travis_terminate' doesn't seem to exit immediately
     else
-      if [ $TRAVIS_PULL_REQUEST_BRANCH != "i18n" ]; then
+      echo "Building for branch: $TRAVIS_BRANCH"
+      if [ $TRAVIS_BRANCH == "release" ]; then
+        travis_retry travis_wait 100 npm run build -- --publish always -c.publish.provider=github -c.publish.owner=getferdi -c.publish.repo=ferdi -c.mac.identity=null || travis_terminate 1
+      elif [ $TRAVIS_BRANCH == "nightly" ]; then
+        git commit -am "Apply linter fixes [skip ci]" --no-verify
+        npm version prerelease --preid=nightly -m "%s and trigger AppVeyor nightly build [skip travisci]" || travis_terminate 1
+        if [ $TRAVIS_OS_NAME == "osx" ]; then
+          git remote add source https://${GH_TOKEN}@github.com/getferdi/ferdi.git > /dev/null 2>&1
+          git push -qu source HEAD:$TRAVIS_BRANCH --no-verify >/dev/null 2>&1
+        fi
+        travis_retry travis_wait 100 npm run build -- --publish always -c.publish.provider=github -c.publish.owner=getferdi -c.publish.repo=nightlies || travis_terminate 1
+      elif [ $TRAVIS_PULL_REQUEST_BRANCH != "i18n" ]; then
         travis_retry travis_wait 100 npm run build || travis_terminate 1
       fi
     fi
-- 
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