60 lines
3.4 KiB
YAML
60 lines
3.4 KiB
YAML
# Builds a cached .tar.gz of the master branch with full history and
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# uploads it to Google Cloud Storage. This archive is downloaded by a
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# script defined by a CI/CD variable named CI_PRE_CLONE_SCRIPT. This has
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# two benefits:
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#
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# 1. It speeds up builds. A 800 MB download only takes seconds.
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# 2. It significantly reduces load on the file server. Smaller deltas
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# means less time spent in git pack-objects.
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#
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# Since the destination directory of the archive depends on the project
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# ID, this is only run on GitLab.com.
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#
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# CI_REPO_CACHE_CREDENTIALS contains the Google Cloud service account
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# JSON for uploading to the gitlab-ci-git-repo-cache bucket. These
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# credentials are stored in the Production vault.
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#
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# Note that this bucket should be located in the same continent as the
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# runner, or network egress charges will apply:
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# https://cloud.google.com/storage/pricing
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cache-repo:
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extends: .cache-repo:rules
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image: gcr.io/google.com/cloudsdktool/cloud-sdk:alpine
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stage: sync
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variables:
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GIT_STRATEGY: none
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SHALLOW_CLONE_TAR_FILENAME: gitlab-master-shallow.tar
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FULL_CLONE_TAR_FILENAME: gitlab-master.tar
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before_script:
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- '[ -z "$CI_REPO_CACHE_CREDENTIALS" ] || gcloud auth activate-service-account --key-file=$CI_REPO_CACHE_CREDENTIALS'
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script:
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# Enable shallow repo caching only if the $ENABLE_SHALLOW_REPO_CACHING variable exists
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# The `git repack` call works around a Git bug with shallow clones: https://gitlab.com/gitlab-org/git/-/issues/86
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- if [ -n "$ENABLE_SHALLOW_REPO_CACHING" ]; then
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cd .. && rm -rf $CI_PROJECT_NAME;
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today=$(date +%Y-%m-%d);
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year=$(date +%Y);
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last_year=`expr $year - 1`;
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one_year_ago=$(echo $today | sed "s/$year/$last_year/");
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echo "Cloning $CI_REPOSITORY_URL into $CI_PROJECT_NAME with commits from $one_year_ago.";
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time git clone --progress --no-checkout --shallow-since=$one_year_ago $CI_REPOSITORY_URL $CI_PROJECT_NAME;
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cd $CI_PROJECT_NAME;
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time git repack -d;
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echo "Archiving $CI_PROJECT_NAME into /tmp/$SHALLOW_CLONE_TAR_FILENAME.";
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time tar cf /tmp/$SHALLOW_CLONE_TAR_FILENAME .;
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echo "GZipping /tmp/$SHALLOW_CLONE_TAR_FILENAME.";
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time gzip /tmp/$SHALLOW_CLONE_TAR_FILENAME;
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[ -z "$CI_REPO_CACHE_CREDENTIALS" ] || (echo "Uploading /tmp/$SHALLOW_CLONE_TAR_FILENAME.gz to GCloud." && time gsutil cp /tmp/$SHALLOW_CLONE_TAR_FILENAME.gz gs://gitlab-ci-git-repo-cache/project-$CI_PROJECT_ID/$SHALLOW_CLONE_TAR_FILENAME.gz);
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fi
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# By default, we want to cache the full repo, unless the $DISABLE_FULL_REPO_CACHING variable exists (in the case the shallow clone caching is working well)
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- if [ -z "$DISABLE_FULL_REPO_CACHING" ]; then
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cd .. && rm -rf $CI_PROJECT_NAME;
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echo "Cloning $CI_REPOSITORY_URL into $CI_PROJECT_NAME.";
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time git clone --progress $CI_REPOSITORY_URL $CI_PROJECT_NAME;
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cd $CI_PROJECT_NAME;
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echo "Archiving $CI_PROJECT_NAME into /tmp/$FULL_CLONE_TAR_FILENAME.";
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time tar cf /tmp/$FULL_CLONE_TAR_FILENAME .;
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echo "GZipping /tmp/$FULL_CLONE_TAR_FILENAME.";
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time gzip /tmp/$FULL_CLONE_TAR_FILENAME;
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[ -z "$CI_REPO_CACHE_CREDENTIALS" ] || (echo "Uploading /tmp/$FULL_CLONE_TAR_FILENAME.gz to GCloud." && time gsutil cp /tmp/$FULL_CLONE_TAR_FILENAME.gz gs://gitlab-ci-git-repo-cache/project-$CI_PROJECT_ID/$FULL_CLONE_TAR_FILENAME.gz);
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fi
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