From a74e2caafbeb49a49f542514590f720f6b215a6d Mon Sep 17 00:00:00 2001
From: Richard Maw <richard.maw@codethink.co.uk>
Date: Tue, 12 Aug 2014 16:26:42 +0000
Subject: Add yarns for checking the state of temporary build branches

---
 yarns/implementations.yarn | 70 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 70 insertions(+)

(limited to 'yarns/implementations.yarn')

diff --git a/yarns/implementations.yarn b/yarns/implementations.yarn
index 8ed007b6..a28fda54 100644
--- a/yarns/implementations.yarn
+++ b/yarns/implementations.yarn
@@ -604,6 +604,72 @@ Generating a manifest.
         die "Output isn't what we expect"
     fi
 
+Implementations for temporary build branch handling
+---------------------------------------------------
+
+    IMPLEMENTS GIVEN the workspace contains no temporary build branches
+    build_ref_prefix=baserock/builds/
+    cd "$DATADIR/workspace"
+    # Want to use -execdir here, but busybox find doesn't support it
+    find . -name .git -print | while read gitdir; do (
+        cd "$(dirname "$gitdir")"
+        eval "$(git for-each-ref --shell \
+                    --format='git update-ref -d %(refname) %(objectname)' \
+                    "refs/heads/$build_ref_prefix")"
+    ); done
+
+    IMPLEMENTS GIVEN the git server contains no temporary build branches
+    build_ref_prefix=refs/heads/baserock/builds/
+    cd "$DATADIR/gits"
+    # Want to use -execdir here, but busybox find doesn't support it
+    find . -name .git -print | while read gitdir; do (
+        cd "$(dirname "$gitdir")"
+        eval "$(git for-each-ref --shell \
+                    --format='git update-ref -d %(refname) %(objectname)' \
+                    "$build_ref_prefix")"
+        git config receive.denyCurrentBranch ignore
+        rm -f .git/morph-pushed-branches
+        mkdir -p .git/hooks
+        cat >.git/hooks/post-receive <<'EOF'
+    #!/bin/sh
+    touch "$GIT_DIR/hook-ever-run"
+    exec cat >>"$GIT_DIR/morph-pushed-branches"
+    EOF
+        chmod +x .git/hooks/post-receive
+    ); done
+
+    IMPLEMENTS GIVEN we can build with local branches
+    sed -i -e '/push-build-branches/d' "$DATADIR/morph.conf"
+
+    IMPLEMENTS GIVEN we must build from pushed branches
+    cat >>"$DATADIR/morph.conf" <<'EOF'
+    push-build-branches = True
+    EOF
+
+    IMPLEMENTS THEN the (\S+) repository in the workspace for (\S+) has temporary build branches
+    build_ref_prefix=refs/heads/baserock/builds/
+    cd "$DATADIR/workspace/$MATCH_2/$(slashify_colons "test:$MATCH_1")"
+    git for-each-ref | grep -F "$build_ref_prefix"
+
+    IMPLEMENTS THEN the (\S+) repository in the workspace for (\S+) has no temporary build branches
+    build_ref_prefix=refs/heads/baserock/builds/
+    cd "$DATADIR/workspace/$MATCH_2/$(slashify_colons "test:$MATCH_1")"
+    if git for-each-ref | grep -F "$build_ref_prefix"; then
+        die Did not expect repo to contain build branches
+    fi
+
+    IMPLEMENTS THEN no temporary build branches were pushed to the (\S+) repository
+    build_ref_prefix=refs/heads/baserock/builds/
+    cd "$DATADIR/gits/$MATCH_1/.git"
+    if test -e morph-pushed-branches && grep -F "$build_ref_prefix" morph-pushed-branches; then
+        die Did not expect any pushed build branches
+    fi
+
+    IMPLEMENTS THEN temporary build branches were pushed to the (\S+) repository
+    build_ref_prefix=refs/heads/baserock/builds/
+    cd "$DATADIR/gits/$MATCH_1/.git"
+    test -e morph-pushed-branches && grep -F "$build_ref_prefix" morph-pushed-branches
+
 Implementation sections for building
 ====================================
 
@@ -800,6 +866,10 @@ Implementations for building systems
     cd "$DATADIR/workspace/$MATCH_3"
     run_morph build "$MATCH_1"
 
+    IMPLEMENTS WHEN the user builds (\S+) of the (\S+) (branch|tag)
+    cd "$DATADIR/workspace/$MATCH_2"
+    run_morph build "$MATCH_1"
+
 Implementations for tarball inspection
 --------------------------------------
 
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