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chore: generate library upon changes on any generation-related files #1667

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21 changes: 5 additions & 16 deletions .github/scripts/hermetic_library_generation.sh
Original file line number Diff line number Diff line change
@@ -1,17 +1,13 @@
#!/bin/bash
set -e
# This script should be run at the root of the repository.
# This script is used to, when a pull request changes the generation
# configuration (generation_config.yaml by default):
# 1. Find whether the last commit in this pull request contains changes to
# the generation configuration and exit early if it doesn't have such a change
# since the generation result would be the same.
# 2. Compare generation configurations in the current branch (with which the
# This script is used to, when a pull request changes any file in the repo:
# 1. Compare generation configurations in the current branch (with which the
# pull request associated) and target branch (into which the pull request is
# merged);
# 3. Generate changed libraries using library_generation image;
# 4. Commit the changes to the pull request, if any.
# 5. Edit the PR body with generated pull request description, if applicable.
# 2. Generate changed libraries using library_generation image;
# 3. Commit the changes to the pull request, if any.
# 4. Edit the PR body with generated pull request description, if applicable.

# The following commands need to be installed before running the script:
# 1. git
Expand Down Expand Up @@ -67,13 +63,6 @@ message="chore: generate libraries at $(date)"

git checkout "${target_branch}"
git checkout "${current_branch}"
# if the last commit doesn't contain changes to generation configuration,
# do not generate again as the result will be the same.
change_of_last_commit="$(git diff-tree --no-commit-id --name-only HEAD~1..HEAD -r)"
if [[ ! ("${change_of_last_commit}" == *"${generation_config}"*) ]]; then
echo "The last commit doesn't contain any changes to the generation_config.yaml, skipping the whole generation process." || true
exit 0
fi
# copy generation configuration from target branch to current branch.
git show "${target_branch}":"${generation_config}" > "${baseline_generation_config}"
config_diff=$(diff "${generation_config}" "${baseline_generation_config}" || true)
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