71 lines
2.5 KiB
Plaintext
71 lines
2.5 KiB
Plaintext
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#!/bin/sh
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# Let's set a sane environment
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set -o errexit
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set -o nounset
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UPDATE_README_COMMIT_AUTHOR_NAME='CI'
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UPDATE_README_COMMIT_AUTHOR_EMAIL='michele@locati.it'
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UPDATE_README_COMMIT_MESSAGE='[skip ci] Automatically update README.md'
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WATCHED_FILES='data/special-requirements data/supported-extensions scripts/common scripts/update-readme scripts/ci-update-readme'
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UPDATE_BRANCH='master'
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echo 'Checking environment'
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if test -z "${GITHUB_WORKSPACE:-}" || test -z "${GITHUB_REF:-}" || test -z "${GITHUB_EVENT_NAME:-}" || test -z "${GITHUB_REPOSITORY:-}"; then
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echo 'Not in a GitHub Actions environment' >&2
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exit 1
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fi
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if test "$GITHUB_EVENT_NAME" != 'push' || test "$GITHUB_REF" != "refs/heads/$UPDATE_BRANCH"; then
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echo 'This script should only be run in push builds to %s' "$UPDATE_BRANCH" >&2
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exit 1
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fi
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if test -z "${DEPLOY_KEY:-}"; then
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echo 'GitHub deploy key not set' >&2
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exit 1
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fi
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SCRIPTS_DIR="$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)"
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. "$SCRIPTS_DIR/common"
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cd "$GITHUB_WORKSPACE"
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printf 'Checking-out branch %s\n' "$UPDATE_BRANCH"
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git checkout --force "$UPDATE_BRANCH"
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LAST_AUTO_UPDATED_IN="$(git rev-list --max-count 1 --author "<$UPDATE_README_COMMIT_AUTHOR_EMAIL>" --grep "$UPDATE_README_COMMIT_MESSAGE" "$UPDATE_BRANCH")"
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if test -z "$LAST_AUTO_UPDATED_IN"; then
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printf 'Rebuild of README.md enabled (no previous automatic refresh of it in branch %s)\n' "$UPDATE_BRANCH"
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else
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MODIFIED_FILES_SINCE="$(git diff --name-only "$LAST_AUTO_UPDATED_IN...$UPDATE_BRANCH")"
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if test -z "$(commonElements "$WATCHED_FILES" "$MODIFIED_FILES_SINCE")"; then
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printf 'Rebuild of README.md not needed (no relevant files changed in branch %s since commit %s)\n' "$UPDATE_BRANCH" "$LAST_AUTO_UPDATED_IN"
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exit 0
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fi
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printf 'Rebuild of README.md enabled (relevant files changed in branch %s since commit %s)\n' "$UPDATE_BRANCH" "$LAST_AUTO_UPDATED_IN"
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fi
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echo 'Updating README.md'
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"$SCRIPTS_DIR/update-readme"
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if test -z "$(git ls-files -m | grep -E '^README\.md$')"; then
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echo 'README.md has not been changed'
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exit 0
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fi
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printf 'Initializing SSH'
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eval "$(ssh-agent)"
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printf '%s' "$DEPLOY_KEY" | tr -d '\r' | ssh-add - >/dev/null
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printf 'Adding %s remote\n' "$GITHUB_REPOSITORY"
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git remote add deploy "git@github.com/$GITHUB_REPOSITORY.git"
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echo 'Committing changes to README.md'
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git config user.name "$UPDATE_README_COMMIT_AUTHOR_NAME"
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git config user.email "$UPDATE_README_COMMIT_AUTHOR_EMAIL"
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git add README.md
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git commit -m "$UPDATE_README_COMMIT_MESSAGE"
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printf 'Pushing to %s\n' "$GITHUB_REPOSITORY"
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git push deploy "$UPDATE_BRANCH"
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echo 'Done.'
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