Use complete-build to skip README deploy if not on master

.builds/readme.yml

@@ -16,20 +16,23 @@ triggers:
     condition: failure
     to: ~sumner/sublime-music-devel@lists.sr.ht
 tasks:
+  # Skip everything if not on master.
+  - skip_not_master: |
+      cd $REPO_NAME
+      git branch --contains | grep master || echo "Skipping README deploy since not on master"
+      git branch --contains | grep master || complete-build
+
   - setup: |
       pip3 install rst2html5
       echo "cd ${REPO_NAME}" >> ~/.buildenv
       echo 'export PATH="$HOME/.local/bin:$PATH"' >> ~/.buildenv
 
-  # If we are on the master branch, compile the README.rst to HTML and set it
-  # as the README for the repo.
   - readme: |
       set +x
-      git branch --contains | grep master &&
-        rst2html5 --template="{body}" README.rst |                          \
-          curl -H "Content-Type: text/html"                                 \
-            -H "Authorization: Bearer $(cat ~/.readme-token)"               \
-            -XPUT                                                           \
-            --data-binary @-                                                \
-            "https://git.sr.ht/api/repos/${REPO_NAME}/readme" &&
-        echo "README set" || echo "Skipping README set because not on master"
+      set -e
+      rst2html5 --template="{body}" README.rst |                            \
+        curl -H "Content-Type: text/html"                                   \
+             -H "Authorization: Bearer $(cat ~/.readme-token)"              \
+             -XPUT                                                          \
+             --data-binary @-                                               \
+             "https://git.sr.ht/api/repos/${REPO_NAME}/readme"