77 lines
2.8 KiB
Plaintext
77 lines
2.8 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='Travis CI'
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UPDATE_README_COMMIT_AUTHOR_EMAIL='michele@locati.it'
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UPDATE_README_COMMIT_MESSAGE='Automatically update README.md'
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WATCHED_FILES='data/special-requirements data/supported-extensions scripts/common scripts/update-readme scripts/travisci-update-readme'
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echo 'Checking environment'
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if test -z "${TRAVIS_BUILD_DIR:-}" -o -z "${TRAVIS_BRANCH:-}" -o -z "${TRAVIS_EVENT_TYPE:-}" -o -z "${TRAVIS_REPO_SLUG:-}"
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then
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echo 'Not in a TravisCI environment' >&2
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exit 1
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fi
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if test -z "${GUTHUB_ACCESS_TOKEN:-}"
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then
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echo 'GitHub access token not set' >&2
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# To create it:
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# - go to https://github.com/settings/tokens/new?scopes=repo
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# - create a new token
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# - sudo apt install -y build-essential ruby ruby-dev
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# - sudo gem install travis
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# - travis encrypt -r <owner>/<repo> GUTHUB_ACCESS_TOKEN=<TOKEN>
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# - Add to .travis.yml:
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# env:
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# global:
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# - secure: "encrypted string"
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exit 1
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fi
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if test "${TRAVIS_EVENT_TYPE}" != 'push'
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then
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echo 'This script should only be run in push builds' >&2
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exit 1
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fi
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LAST_AUTO_UPDATED_IN="$(git -C "${TRAVIS_BUILD_DIR}" rev-list --max-count 1 --author "<${UPDATE_README_COMMIT_AUTHOR_EMAIL}>" --grep "${UPDATE_README_COMMIT_MESSAGE}" "${TRAVIS_BRANCH}")"
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if test -z "${LAST_AUTO_UPDATED_IN}"
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then
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printf 'Rebuild of README.md enabled (no previous automatic refresh of it in branch %s)\n' "${TRAVIS_BRANCH}"
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else
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MODIFIED_FILES_SINCE="$(git -C "${TRAVIS_BUILD_DIR}" diff --name-only "${LAST_AUTO_UPDATED_IN}...${TRAVIS_BRANCH}")"
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if test -z "$(commonElements "${WATCHED_FILES}" "${MODIFIED_FILES_SINCE}")"
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then
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printf 'Rebuild of README.md not needed (no relevant files changed in branch %s since commit %s)\n' "${TRAVIS_BRANCH}" "${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' "${TRAVIS_BRANCH}" "${LAST_AUTO_UPDATED_IN}"
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fi
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echo 'Updating README.md'
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"${TRAVIS_BUILD_DIR}/scripts/update-readme"
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if test -z "$(git -C "${TRAVIS_BUILD_DIR}" ls-files -m | grep -E '^README\.md$')"
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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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echo 'Committing changes to README.md'
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git -C "${TRAVIS_BUILD_DIR}" config user.name "${UPDATE_README_COMMIT_AUTHOR_NAME}"
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git -C "${TRAVIS_BUILD_DIR}" config user.email "${UPDATE_README_COMMIT_AUTHOR_EMAIL}"
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git -C "${TRAVIS_BUILD_DIR}" add README.md
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git -C "${TRAVIS_BUILD_DIR}" commit -m "${UPDATE_README_COMMIT_MESSAGE}"
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printf 'Adding %s remote\n' "${TRAVIS_REPO_SLUG}"
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git remote add deploy "https://${GUTHUB_ACCESS_TOKEN}@github.com/${TRAVIS_REPO_SLUG}.git"
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printf 'Pushing to %s\n' "${TRAVIS_REPO_SLUG}"
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git push deploy "${TARGET_BRANCH}"
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git -C "${TRAVIS_BUILD_DIR}" push add deploy "https://${GUTHUB_ACCESS_TOKEN}@github.com/${TRAVIS_REPO_SLUG}.git"
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echo 'Done.'
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