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#!/bin/bash
## This bash script takes 4 arguments
## 1: Repository on github to sync to
## 2: The auth token to be used (either "token TheToken" or "Bearer TheToken")
## 3: A regexp for which releases to sync
## 4: Optional timeout for the rsync command when it should stop syncing
##
## This script downloads artifacts from erlang.org/download and then publishes
## them to the release for the corresponding TAG on github. If there is no release
## then a release is created with the README as the body of the release.
##
## The script does not keep release artifacts up to date, so if an artifact is changed
## on erlang.org then it will not be automatically updated on github.
##
## The reason why this is a polling script and not triggered when a new tag is pushed
## is because when the TAG is pushed to github it is not guarenteed that the
## corresponding artifacts will be available on erlang.org.
set -e
REPOSITORY=${1}
TOKEN=${2:-"token ${GITHUB_TOKEN}"}
RELEASE_FILTER=${3}
TIME_LIMIT=${4:-120m}
HDR=(-H "Authorization: ${TOKEN}")
REPO="https://api.github.com/repos/${REPOSITORY}"
_json_escape () {
printf '```\n%s\n```' "${1}" | python -c 'import json,sys; print(json.dumps(sys.stdin.read()))'
}
_strip_name() {
echo "${1}" | sed -e 's/^OTP[-_]//g'
}
_curl_get() {
curl --silent "${HDR[@]}" "${@}"
}
_curl_post() {
curl -o /dev/null --silent --fail --show-error -X POST "${HDR[@]}" \
-H "Accept: application/vnd.github.v3+json" "${@}"
}
RI=()
ALL_TAGS=()
CREATE_RELEASE=()
TAG_URL="${REPO}/tags?per_page=100"
## This function is used to loop over the pagianated results from github tags
## It sets TAGS to be the the json from the current page of tags
_next_page() {
TAGS=$(curl -s "${HDR[@]}" ${TAG_URL})
## In the "Link:" header from github we get the link for the next page.
## An example link header:
## link: <https://api.github.com/repositories/843890/tags?per_page=100&page=2>; rel="next", <https://api.github.com/repositories/843890/tags?per_page=100&page=4>; rel="last"
TAG_URL=$(curl -s -I -H "${HDR[@]}" ${TAG_URL} | grep "^link:" | sed -n 's/link:.* <\([^>]\+\)>; rel="next".*/\1/p')
}
## First we fetch all tags and releases and build a list of all resources
## that we should rsync from erlang.org. We only want to do one call to
## rsync for all files as otherwise erlang.org will rate-limit us.
while [ "${TAG_URL}" != "" ]; do
_next_page
## Loop over all tags, we base64 encode each element in the array
## in order to make the bash for loop work
for row in $(echo "${TAGS}" | jq -r '.[] | @base64'); do
_row() {
echo "${row}" | base64 --decode | jq -r "${1}"
}
name=$(_row '.name')
stripped_name=$(_strip_name ${name})
if echo ${stripped_name} | grep -E "${RELEASE_FILTER}" > /dev/null; then
RELEASE=$(_curl_get "${REPO}/releases/tags/${name}")
if ! echo "${RELEASE}" | jq -er ".name" > /dev/null; then
ALL_TAGS=("${ALL_TAGS[@]}" "${name}")
CREATE_RELEASE=("${CREATE_RELEASE[@]}" "${name}")
RI=("*${stripped_name}*" "${RI[@]}")
echo "Create release ${name}"
else
_asset() {
local filename="${1}"
local remotename=("${2:-$filename}")
if [ $# -gt 2 ]; then
shift; shift
remotename=("$@" "${remotename[@]}")
fi
if ! echo "${RELEASE}" | jq -er ".assets[] | select(.name == \"${filename}\")" > /dev/null; then
ALL_TAGS=("${ALL_TAGS[@]}" "${name}")
echo "Sync ${remotename[*]} for ${name}"
RI=("${remotename[@]}" "${RI[@]}")
fi
}
_asset "${name}.README" "${name}.README" "otp_src_${stripped_name}.readme"
_asset "otp_src_${stripped_name}.tar.gz"
_asset "otp_doc_html_${stripped_name}.tar.gz"
_asset "otp_doc_man_${stripped_name}.tar.gz"
case "${stripped_name}" in
22.*.**|21.*.**)
## No need to check for windows releases in 21 and 22 patches
;;
*)
_asset "otp_win32_${stripped_name}.exe"
_asset "otp_win64_${stripped_name}.exe"
;;
esac
fi
fi
done
done
## Remove all duplicate tags
readarray -t ALL_TAGS < <(printf '%s\0' "${ALL_TAGS[@]}" | sort -uz | xargs -0n1)
RINCLUDE=()
for i in "${RI[@]}"; do
RINCLUDE=("--include=${i}" "${RINCLUDE[@]}")
done
set -x
## rsync the proper files, we will use which files have been
## synced to determine which artifacts we should upload.
## There is a timelimit here so that github actions will not
## timeout
! timeout ${TIME_LIMIT} rsync --archive --verbose --compress "${RINCLUDE[@]}" --exclude='*' \
erlang.org::erlang-download downloads
set +x
## Rename all .readme files to .README
for name in "${ALL_TAGS[@]}"; do
stripped_name=$(_strip_name ${name})
if [ -s "downloads/otp_src_${stripped_name}.readme" ]; then
mv downloads/otp_src_${stripped_name}.readme downloads/${name}.README
fi
done
## All tags that do not have a release we create a release for
## using the readme as the body text if a readme is available.
for name in "${CREATE_RELEASE[@]}"; do
echo "Create release for ${name}"
stripped_name=$(_strip_name ${name})
if [ -s "downloads/${name}.README" ]; then
README=`cat downloads/${name}.README`
else
README=""
fi
if echo "${README}" | grep "HIGHLIGHTS" > /dev/null; then
## We have highlights, so only use those as the body
## This awk script is a hack.
## It counts the number of lines that start with '---' and
## then outputs any text after the first '---' until the 7th.
README=`echo "${README}" | awk 'BEGIN{ echo=0 } { if ( $1 ~ /^---/ ) { echo++ } if ( echo > 0 && echo < 7 ) { print $0 } }'`
fi
if [ "${README}" != "" ]; then
RM=$(_json_escape "${README}")
BODY=", \"body\":${RM}"
else
BODY=""
fi
$(_curl_post "${REPO}/releases" -d '{"tag_name":"'"${name}"'", "name":"OTP '"${stripped_name}\"${BODY}}")
done
UPLOADED=false
## Array of all tags that do not have a pre-build
MISSING_PREBUILD=()
_upload_artifacts() {
local name=${1};
local stripped_name=""
local RELEASE=""
local UPLOAD_URL=""
echo "Upload artifacts for ${name}"
stripped_name=$(_strip_name ${name})
RELEASE=$(_curl_get "${REPO}/releases/tags/${name}")
UPLOAD_URL=$(echo "${RELEASE}" | jq -r ".upload_url" | sed 's/{.*//')
_upload() {
if [ -s downloads/${1} ]; then
echo "Upload ${1}"
UPLOADED=true
_curl_post -H "Content-Type: ${2}" \
"${UPLOAD_URL}?name=${1}" \
--data-binary "@downloads/${1}"
else
if echo "${RI[@]}" | grep "${stripped_name}.tar.gz" > /dev/null; then
MISSING_PREBUILD=("${MISSING_PREBUILD[@]}" "${name}")
fi
fi
}
_upload "${name}.README" "text"
_upload "otp_src_${stripped_name}.tar.gz" "application/gzip"
_upload "otp_doc_html_${stripped_name}.tar.gz" "application/gzip"
_upload "otp_doc_man_${stripped_name}.tar.gz" "application/gzip"
_upload "otp_win32_${stripped_name}.exe" "application/x-msdownload"
_upload "otp_win64_${stripped_name}.exe" "application/x-msdownload"
}
## Upload all assets for tags
for name in "${ALL_TAGS[@]}"; do
_upload_artifacts ${name}
done
## Rebuild erlang.org to get links to the new artifacts
if [ ${UPLOADED} = true ]; then
curl -H "Authorization: token ${ERLANG_ORG_TOKEN}" -X POST -H "Accept: application/vnd.github.v3+json" "https://api.github.com/repos/erlang/erlang-org/actions/workflows/update-gh-cache.yaml/dispatches" -d '{"ref":"master"}'
fi
## If no assets were uploaded, we try to build one instead
if [ ${UPLOADED} = false ] && [ ${#MISSING_PREBUILD[0]} != 0 ]; then
name="${MISSING_PREBUILD[0]}"
stripped_name=$(_strip_name "${name}")
git clone https://github.com/erlang/otp -b "${name}" otp_src
(cd otp_src && ../.github/scripts/init-pre-release.sh)
case ${stripped_name} in
23.**)
## The 32-bit dockerfile build the doc chunks which we want
## to include in VSN >= 23.
docker build -t otp --build-arg ARCHIVE=otp_src/otp_src.tar.gz \
-f otp_src/.github/dockerfiles/Dockerfile.32-bit .
;;
*)
docker build -t otp --build-arg ARCHIVE=otp_src/otp_src.tar.gz \
-f otp_src/.github/dockerfiles/Dockerfile.64-bit .
;;
esac
docker run -v "$PWD":/github otp \
"/github/scripts/build-otp-tar -o /github/otp_clean_src.tar.gz /github/otp_src.tar.gz -b /buildroot/otp/ /buildroot/otp.tar.gz"
.github/scripts/release-docs.sh
.github/scripts/create-artifacts.sh downloads "${name}"
## Delete any artifacts that we should not upload
for artifact in dowloads/*; do
if ! echo "${RI[@]}" | grep "${artifact}" 2> /dev/null > /dev/null; then
rm -f "downloads/${artifact}"
fi
done
_upload_artifacts "${name}"
fi
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