Change implementaion of bump-tag
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GPG key ID:
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328
bump-tag
328
bump-tag
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@ -1,275 +1,81 @@
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#!/bin/bash
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set -e
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echo "Fetching updates from $(git remote get-url origin) ..."
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echo "Fetching any updates from server:"
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git pull
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echo ""
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if ! git pull --verify-signatures; then
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echo "WARNING: git pull did not exit successfully."
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echo ""
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echo "EXITING the script. In order to tag your changes,"
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echo "investigate and then run bump-tag again."
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exit 1
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fi
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if [[ -f ./cosmos.conf ]]; then
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# shellcheck disable=SC1091
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source ./cosmos.conf
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fi
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cur_branch=$(git branch --show-current)
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# A tab will be used in multiple commands for git
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t=$'\t'
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# Set the default tag according to the repo
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# or by entering a name as the first argument.
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if [[ -z "${1}" ]]; then
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deftag="$(basename "${PWD}")"
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if [[ -z ${1} ]]; then
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deftag="${cur_branch}"
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else
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deftag="${1}"
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deftag="${1}"
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fi
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# Set the tag prefix according to:
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# 1. $tag, if specified in cosmos.conf,
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# 2. or $deftag, as specified above.
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# shellcheck disable=SC2154
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if [[ -n "${tag}" ]]; then
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tagpfx="${tag}"
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if ! [[ ${deftag} =~ ${cur_branch} ]] && ! [[ ${GIT_PUSH_EXTRA} =~ '--no-verify' ]]; then
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echo "Your tag: ${deftag} does not match the name of the branch: ${cur_branch}."
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echo "To push anyway, run: GIT_PUSH_EXTRA='--no-verify' ${0} ${*}"
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exit 1
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fi
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tagpfx=${tag:="${deftag}"}
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if [[ -z ${ALLOW_NEW_TAG} ]]; then
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echo "${0}: Looking for last-tag matching ${tagpfx}-2*"
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last_tag=$(git tag -l "${tagpfx}-2*" | sort | tail -1)
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if [[ -z ${last_tag} ]]; then
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echo ""
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echo -e "Tag matching \e[1m${tagpfx}-2* NOT FOUND\e[0m, aborting."
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echo "To create new tag, run: ALLOW_NEW_TAG=true ${0} ${*}"
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exit 1
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fi
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echo -e "Verifying last tag \e[94m${last_tag}\e[0m:"
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(git tag -v "${last_tag}" 2>&1 | grep ^gpg:) || true
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# again to not mask exit status of git with grep
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git tag -v "${last_tag}" >/dev/null 2>&1
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echo ""
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echo "Differences between tag ${last_tag} and what you are about to sign:"
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git log --pretty=format:'%h %an %G? %s' --graph "${last_tag}..HEAD"
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echo "Press enter to see diff"
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read -r
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PAGER="cat" git diff --color "${last_tag}"..HEAD
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iter=1
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ok=
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while test -z "${ok}"; do
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this_tag=$(date "+${tagpfx}-%Y-%m-%d-v$(printf "%02d" ${iter})")
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iter=$((iter + 1))
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case $( (
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echo "${this_tag}"
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echo "${last_tag}"
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) | sort | tail -1) in
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"${last_tag}") ;;
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"${this_tag}")
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ok=yes
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;;
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esac
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done
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extra_message=" AND DIFF ABOVE"
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else
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tagpfx="${deftag}"
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this_tag=$(date "+${tagpfx}-%Y-%m-%d-v1")
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fi
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# This is the current branch that Git will diff against.
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this_branch=$(git rev-parse --abbrev-ref HEAD)
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echo ""
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echo -e "Using new tag \e[94m${this_tag}\e[0m"
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echo -e "\e[1mONLY SIGN IF YOU APPROVE OF VERIFICATION${extra_message}\e[0m"
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# Check why the tag couldn't be verified
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# First argument: the tag to investigate
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check_tag_sig_failure()
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{
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local __tag_to_check="${1}"
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# shellcheck disable=SC2155
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local __verify_tag_output="$(git verify-tag --raw "${__tag_to_check}" 2>&1)"
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if echo "${__verify_tag_output}" | grep -q "VALIDSIG"; then
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if echo "${__verify_tag_output}" | grep -q "EXPKEYSIG"; then
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echo ""
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echo "WARNING: The tag was correctly signed, but the copy of"
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echo "the key that you have stored on your computer has expired."
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echo "Check for an updated key in:"
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echo "global/overlay/etc/cosmos/keys/"
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echo ""
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echo "EXITING the script. In order to tag your changes,"
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echo "investigate and then run bump-tag again."
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exit 1
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else
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echo ""
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echo "WARNING: The tag was probably correctly signed,"
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echo "but it still didn't pass the verification check."
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echo ""
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echo "EXITING the script. In order to tag your changes,"
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echo "investigate and then run bump-tag again."
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exit 1
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fi
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else
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echo ""
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echo "WARNING: The signature of the tag could not be verified."
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echo "Please make sure that you have imported the key and that"
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echo "the key is signed by a trusted party."
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echo "Keys used for signing in a Cosmos repo can be found at:"
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echo "global/overlay/etc/cosmos/keys/"
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echo ""
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echo "EXITING the script. In order to tag your changes,"
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echo "investigate and then run bump-tag again."
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exit 1
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fi
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}
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check_commit_sig_failure()
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{
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local __commit_to_check="${1}"
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local __file_related_to_commit="${2}"
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# shellcheck disable=SC2155
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local __verify_commit_output="$(git verify-commit --raw "${__commit_to_check}" 2>&1)"
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if echo "${__verify_commit_output}" | grep -q "VALIDSIG"; then
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if echo "${__verify_commit_output}" | grep -q "EXPKEYSIG"; then
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echo "WARNING: The commit to ${__file_related_to_commit}"
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echo "was correctly signed, but the copy of the key that"
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echo "you have stored on your computer has expired."
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echo "Check for an updated key in:"
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echo "global/overlay/etc/cosmos/keys/"
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echo ""
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echo "EXITING the script. In order to tag your changes,"
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echo "investigate and then run bump-tag again."
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exit 1
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else
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echo "WARNING: The commit to ${__file_related_to_commit}"
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echo "was probably correctly signed, but it still didn't"
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echo "pass the verification check."
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echo ""
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echo "EXITING the script. In order to tag your changes,"
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echo "investigate and then run bump-tag again."
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exit 1
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fi
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else
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echo "WARNING: The commit to ${__file_related_to_commit}"
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echo "could not be verified. Please make sure that you have"
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echo "imported the key and that the key is signed by a trusted party."
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echo ""
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echo "EXITING the script. In order to tag your changes,"
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echo "investigate and then run bump-tag again."
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exit 1
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fi
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}
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# Verify the last commit of a file
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# First argument: the file to verify
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verify_last_commit()
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{
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local __file_to_verify="${1}"
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if [[ ! -f "${__file_to_verify}" ]]; then
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return 1
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fi
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if [[ -n "$(git status --porcelain "${__file_to_verify}")" ]]; then
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echo ""
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echo "INFO: local changes detected in ${__file_to_verify},"
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echo "Not checking the signature of the last commit to ${__file_to_verify}."
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echo ""
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return 1
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fi
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# shellcheck disable=SC2155
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local __last_commit="$(git log -n 1 --pretty=format:%H -- "${__file_to_verify}")"
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if ! git verify-commit "${__last_commit}" 2> /dev/null; then
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echo ""
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echo "WARNING: Untrusted modification to ${__file_to_verify}:"
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echo "----------------------------"
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git verify-commit "$(git log -n 1 --pretty=format:%H -- "${__file_to_verify}")"
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echo "----------------------------"
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check_commit_sig_failure "${__last_commit}" "${__file_to_verify}"
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fi
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}
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tag_list="$(git tag -l "${tagpfx}-*")"
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# shellcheck disable=SC2181
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if [[ ${?} -ne 0 ]] || [[ -z "${tag_list}" ]]; then
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if [[ -z ${ALLOW_UNSIGNED_COMMITS_WITHOUT_TAGS} ]]; then
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echo "No tags found, verifying all commits instead."
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echo "Please set environment variable ALLOW_UNSIGNED_COMMITS_WITHOUT_TAGS if you want to disable this check."
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# %H = commit hash
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# %G? = show "G" for a good (valid) signature
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git_log="$(git log --pretty="format:%H${t}%G?" \
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--first-parent \
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| grep -v "${t}G$")"
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fi
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else
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last_tag="$(echo "${tag_list}" | sort | tail -1)"
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echo "Verifying last tag: ${last_tag} and the commits after that"
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if ! git verify-tag "${last_tag}"; then
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check_tag_sig_failure "${last_tag}"
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fi
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tag_object="$(git verify-tag -v "${last_tag}" 2>&1 | grep ^object | cut -d' ' -f2)"
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# The commits after the last valid signed git tag that we need to check
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revision_range="${tag_object}..HEAD"
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# Filter out the commits that are unsigned or untrusted
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# %H = commit hash
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# %G? = show "G" for a good (valid) signature
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git_log="$(git log --pretty="format:%H${t}%G?" "${revision_range}" \
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--first-parent \
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| grep -v "${t}G$")"
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fi
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if [[ -n "${git_log}" ]]; then
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echo ""
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echo -e "------WARNING: unsigned or untrusted commits after the last tag------"
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echo "${git_log}"
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echo -e "---------------------------------------------------------------------"
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echo "Quick referens on how to configure signing of commits in ~/.gitconfig:"
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echo "[user]"
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echo " signingkey = your-prefered-key-id"
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echo "[commit]"
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echo " gpgsign = true"
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echo ""
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echo "EXITING the script. In order to tag your changes,"
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echo "please make sure that you have configured signing of"
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echo "your own commits and that the listed unsigned commits"
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echo "have been made by a trusted party and are not malicous."
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exit 1
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fi
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# Always check that the last commit of certain
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# sensitive files is trusted, without taking into
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# account whether the last tag was trusted or not.
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verify_last_commit "./scripts/jsonyaml-no-output.py"
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verify_last_commit "./bump-tag"
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# Test the syntax of each YAML-file to be tagged.
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for file in $(git diff --name-only "${last_tag}..${this_branch}" | grep -E "^.*\.(yaml|yml)$"); do
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if [[ -f "${file}" ]]; then
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./scripts/jsonyaml-no-output.py yaml "${file}"
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fi
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done
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echo "Differences between tag ${last_tag} and what you are about to sign:"
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# With PAGER=cat, git diff will simply dump the output to the screen.
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# shellcheck disable=SC2037
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PAGER="cat" git diff --color "${last_tag}..${this_branch}"
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# Iterate over the $last_tag until $this_tag is set to a later version
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iter=1
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ok=
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while [[ -z "${ok}" ]]; do
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this_tag="$(date +"${tagpfx}-%Y-%m-%d-v$(printf "%02d" "${iter}")")"
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iter="$(( iter + 1))"
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case "$( (echo "${this_tag}"; echo "${last_tag}") | sort | tail -1 )" in
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"${last_tag}")
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;;
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"${this_tag}")
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ok=yes
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;;
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esac
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done
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if [[ "${deftag}" != "${tagpfx}" ]]; then
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echo -e "Using new tag \e[94m${this_tag}\e[0m according to pattern in cosmos.conf"
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else
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echo -e "Using new tag \e[94m${this_tag}\e[0m"
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fi
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echo -e "\e[1mONLY SIGN IF YOU APPROVE OF VERIFICATION AND DIFF ABOVE\e[0m"
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# GITTAGEXTRA is for putting things like "-u 2117364A"
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# Note that this variable cannot be quoted if left empty.
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# GIT_TAG_EXTRA is for putting things like "-u 2117364A"
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# shellcheck disable=SC2086
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git tag ${GITTAGEXTRA} -m bump. -s "${this_tag}"
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git tag ${GIT_TAG_EXTRA} -m bump. -s "${this_tag}"
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git push
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git push --tags
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# GIT_PUSH_EXTRA is for putting things like "--no-verify"
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# shellcheck disable=SC2086
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git push ${GIT_PUSH_EXTRA}
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# shellcheck disable=SC2086
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git push --tags ${GIT_PUSH_EXTRA}
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