Merge "Setup constraints for release"

jenkins/jobs/macros.yaml

@@ -184,6 +184,69 @@
           /usr/zuul-env/bin/zuul-cloner -m $CLONEMAP --cache-dir /opt/git \
               $BRANCH_ARG git://git.openstack.org $ZUUL_PROJECT
 
+- builder:
+    # Use this macro in the release pipeline to get a tagged repo with
+    # tag checked out and requirements repo with the branch the tag is
+    # on.
+    # The macro also works in other pipelines.
+    name: zuul-release-git-prep-upper-constraints
+    builders:
+      - shell: |
+          #!/bin/bash -xe
+          function get_branch_tag {
+
+              BRANCHES=`git branch -a --contains $ZUUL_REFNAME`
+
+              TARGET_BRANCH=`echo "$BRANCHES"|grep '^  remotes/origin/stable'|cut -d/ -f3-|sort|head -n1`
+
+              if [ -z $TARGET_BRANCH ] ; then
+                  TARGET_BRANCH=`echo "$BRANCHES"|grep '^  remotes/origin/'|cut -d/ -f3-|sort|grep -v ^HEAD|head -n1`
+              fi
+              # Nothing found.
+              # Note that zuul-cloner will also fallback to master if
+              # the TARGET_BRANCH does not exist.
+              if [ -z $TARGET_BRANCH ] ; then
+                  echo "Tag not found, falling back to master"
+                  TARGET_BRANCH=master
+              fi
+          }
+
+          CLONEMAP=`mktemp`
+          REQS_DIR=`mktemp -d`
+          function cleanup {
+              mkdir -p $WORKSPACE
+              rm -rf $CLONEMAP $REQS_DIR
+          }
+          trap cleanup EXIT
+          cat > $CLONEMAP << EOF
+          clonemap:
+            - name: $ZUUL_PROJECT
+              dest: .
+          EOF
+
+          /usr/zuul-env/bin/zuul-cloner -m $CLONEMAP --cache-dir /opt/git \
+              git://git.openstack.org $ZUUL_PROJECT
+
+          if [[ "$ZUUL_PROJECT" != "openstack/requirements" ]]; then
+              # Figure out branch for requirements checkout
+              if [[ "$ZUUL_REFNAME" =~ ^refs/tags/ ]] ; then
+                  get_branch_tag
+              else
+                  TARGET_BRANCH=$ZUUL_REFNAME
+              fi
+
+              cat > $CLONEMAP << EOF
+          clonemap:
+            - name: openstack/requirements
+              dest: $REQS_DIR
+          EOF
+              /usr/zuul-env/bin/zuul-cloner -m $CLONEMAP --cache-dir /opt/git \
+                  --branch $TARGET_BRANCH \
+                  git://git.openstack.org openstack/requirements
+              cp $REQS_DIR/upper-constraints.txt ./
+          fi
+
+
 - builder:
     name: branch-git-prep
     builders:

jenkins/jobs/python-jobs.yaml

@@ -560,7 +560,7 @@
     builders:
       - print-template-name:
           template-name: "{template-name}"
-      - gerrit-git-prep
+      - zuul-release-git-prep-upper-constraints
       - install-distro-packages
       - revoke-sudo
       - tarball: