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docker-versions-create.sh
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docker-versions-create.sh
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#!/bin/bash
#set -x
# Use this variable to indicate a list of branches that docker hub is watching
branches_list=(
'java8'
'java8-multiarch'
'openj9'
'openj9-11'
'adopt11'
'java15'
'java15-openj9'
'multiarch'
'multiarch-latest'
)
function TrapExit {
echo "Checking out back in master"
git checkout master
}
batchMode=false
while getopts "hbt:s" arg
do
case $arg in
b)
batchMode=true
;;
t)
tag=${OPTARG}
;;
s)
tagArgs="-s -m 'Signed during docker-versions-create"
;;
h)
echo "
Usage $0 [options]
Options:
-b enable batch mode, which avoids interactive prompts and causes script to fail immediately
when any merge fails
-t TAG tag and push the current revision on master with the given tag
and apply respective tags to each branch
-s enable signed tags
-h display this help and exit
"
exit
;;
*)
echo "Unsupported arg $arg"
exit 2
;;
esac
done
${batchMode} && echo "Using batch mode"
trap TrapExit EXIT SIGTERM
test -d ./.git || { echo ".git folder was not found. Please start this script from root directory of the project!";
exit 1; }
# Making sure we are in master
git checkout master
git pull --all || { echo "Can't pull the repo!"; \
exit 1; }
if [[ $tag ]]; then
git tag $tag
git push origin $tag
fi
git_branches=$(git branch -a)
for branch in "${branches_list[@]}"; do
if [[ "$git_branches" != *"$branch"* ]]; then
echo "Can't update $branch because I can't find it in the list of branches."
exit 1
else
echo "Branch $branch found. Working with it."
git checkout "$branch" || { echo "Can't checkout into the branch. Don't know the cause."; \
exit 1; }
proceed='False'
while [[ "$proceed" == "False" ]]; do
# Ensure local branch is aligned with remote since docker-versions-create may have been run elsewhere
git pull
if git merge -m 'Auto-merging via docker-versions-create' master; then
proceed="True"
echo "Branch $branch updated to current master successfully"
# pushing changes to remote for this branch
git commit -m "Auto merge branch with master" -a
# push may fail if remote doesn't have this branch yet. In this case - sending branch
git push || git push -u origin "$branch" || { echo "Can't push changes to the origin."; exit 1; }
if [[ $tag ]]; then
git tag "$tag-$branch"
git push origin "$tag-$branch"
fi
elif ${batchMode}; then
status=$?
echo "Git merge failed in batch mode"
exit ${status}
# and trap exit gets us back to master
else
cat<<EOL
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
Master merge in the branch $branch encountered an error!
You may try to fix the error and merge again. (Commit changes)
Or skip this branch merge completely.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
EOL
printf "Should we try again? (y):"
read -r answer
if [[ "$answer" == '' ]] || [[ "$answer" == 'y' ]] || [[ "$answer" == 'Y' ]]; then
# If you use non-local editor or files are changed in repo
cat <<EOL
The following commands may encounter an error!
This is completely fine if the changes were made locally and remote branch doesn't know about them.
EOL
# Updating branch from remote before trying again
git checkout master
git fetch --all
git pull -a
git checkout "$branch"
continue
else
break
fi
fi
done
fi
done