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Allow source-repositories ref to be "*"

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Passing a source-repositories ref of "*" should signal fetching all
heads similar to when a non-cached ref is requested. Reuse the same
fallback logic, but skip unnecessary checks since "*" is not a real
refname. Also expand the fallback to update tags, and to --purge
local refs that no longer exist on the remote for additional safety.

Change-Id: I4562c9689a8d235ebe09b2f7178aa5890dbc85f1
This commit is contained in:
Jeremy Stanley 2015-06-24 20:29:03 +00:00
parent 6bf4631cfa
commit f82400b432
2 changed files with 22 additions and 11 deletions
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3
elements/source-repositories/README.rst
View file

@ -9,7 +9,8 @@ from git and pbr from a tarball would be
*File : elements/custom-element/source-repository-ironic*
#<name> <type> <destination> <location> [<ref>]
# <ref> defaults to master if not specified
# <ref> defaults to master if not specified.
# A value of "*" prunes and fetches all heads and tags.
ironic git /usr/local/ironic git://git.openstack.org/openstack/ironic.git
*File : elements/custom-element/source-repository-pbr*

30
elements/source-repositories/extra-data.d/98-source-repositories
View file

@ -118,12 +118,14 @@ function get_repos_for_element(){
mv ${CACHE_PATH}{.tmp,}
fi
HAS_REF=$(git --git-dir=$CACHE_PATH/.git name-rev $REPOREF 2>/dev/null || true)
if [ "$REPOREF" != "*" ] ; then
HAS_REF=$(git --git-dir=$CACHE_PATH/.git name-rev $REPOREF 2>/dev/null || true)
fi
if [ -z "$DIB_OFFLINE" -o -z "$HAS_REF" ] ; then
echo "Updating cache of $REPOLOCATION in $CACHE_PATH with ref $REPOREF"
# Copy named refs (which might be outside the usual heads
# pattern) - e.g. gerrit
if ! git --git-dir=$CACHE_PATH/.git fetch --update-head-ok $REPOLOCATION \
if [ "$REPOREF" == "*" ] || ! git --git-dir=$CACHE_PATH/.git fetch --update-head-ok $REPOLOCATION \
+${REPOREF}:${REPOREF} ; then
# Copy all heads from the remote repository - this permits
# using a SHA1 object reference so long as the object
@ -131,11 +133,13 @@ function get_repos_for_element(){
# not permit arbitrary sha fetching from remote servers.
# This is a separate fetch to the prior one as the prior
# one will fail when REPOREF is a SHA1.
git --git-dir=$CACHE_PATH/.git fetch --update-head-ok $REPOLOCATION \
+refs/heads/*:refs/heads/*
git --git-dir=$CACHE_PATH/.git fetch --prune --update-head-ok $REPOLOCATION \
+refs/heads/*:refs/heads/* +refs/tags/*:refs/tags/*
fi
# Ensure that we have a reference to the revision.
git --git-dir=$CACHE_PATH/.git rev-parse -q --verify $REPOREF^{commit}
if [ "$REPOREF" != "*" ] ; then
git --git-dir=$CACHE_PATH/.git rev-parse -q --verify $REPOREF^{commit}
fi
fi
echo "Cloning from $REPONAME cache and applying ref $REPOREF"
@ -145,7 +149,7 @@ function get_repos_for_element(){
if [[ "$CACHE_PATH" != "$DESIRED" ]]; then
echo "REPOLOCATIONS don't match ("$CACHE_PATH" != "$DESIRED")" >&2
exit 1
else
elif [[ "$REPOREF" != "*" ]]; then
pushd $REPO_DEST
# When we first clone we create a branch naming what we fetched
# that must match, or we are asking for two different references from the
@ -159,10 +163,16 @@ function get_repos_for_element(){
else
sudo git clone $CACHE_PATH $REPO_DEST
pushd $REPO_DEST
sudo git fetch $CACHE_PATH $REPOREF:fetch_$REPOREF
sudo git reset --hard FETCH_HEAD
# Get the sha in use
git_sha=$(git rev-parse FETCH_HEAD)
if [[ "$REPOREF" == "*" ]]; then
sudo git fetch --prune --update-head-ok $CACHE_PATH \
+refs/heads/*:refs/heads/* +refs/tags/*:refs/tags/*
git_sha=$(git rev-parse HEAD)
else
sudo git fetch $CACHE_PATH $REPOREF:fetch_$REPOREF
sudo git reset --hard FETCH_HEAD
# Get the sha in use
git_sha=$(git rev-parse FETCH_HEAD)
fi
popd
# Write the sha being used into the source-repositories manifest