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Some refactoring of gh_releases #166

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merged 1 commit into from Nov 16, 2020
Merged

Some refactoring of gh_releases #166

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38 changes: 21 additions & 17 deletions overlays/github-latest-release/usr/local/bin/gh_releases
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Expand Up @@ -7,38 +7,45 @@ tmp_dir=/tmp/gh_releases
rm -rf $tmp_dir
mkdir -p $tmp_dir

fatal() {
echo -e "\n[FATAL] $1" 1>&2
exit 1
}
fatal() { echo -e "\n[FATAL] $@" 1>&2; exit 1; }
warning() { echo -e "[WARNING] $@" 1>&2; }

usage() {
echo "Usage: gh_releases.sh <user>/<repo>" 1>&2
echo "Note: requires GITHUB_USER and GITHUB_USER_TOKEN" 1>&2
echo " environment variables to be set." 1>&2
echo "For debugging, set DEBUG=y." 1>&2
cat >&2 <<EOF
Usage: $(basename $0) <user>/<repo>

Note: Setting GITHUB_USER and GITHUB_USER_TOKEN environment variables are
recommended. If not set, multipage results may be unreliable.

For debugging, set DEBUG=y.
EOF
}

if [[ -z "$repo_path" ]]; then
usage
fatal "user/repo not provided!"
fi
if [[ -z "$GITHUB_USER" ]]; then
usage
fatal "GITHUB_USER not set!"
warn="GITHUB_USER not set!"
fi
if [[ -z "$GITHUB_USER_TOKEN" ]]; then
usage
fatal "GITHUB_USER_TOKEN not set!"
warn="$warn GITHUB_USER_TOKEN not set!"
fi
if [[ -n "$GITHUB_USER" ]] && [[ -n "$GITHUB_USER_TOKEN" ]]; then
USER="-u $GITHUB_USER:$GITHUB_USER_TOKEN"
else
warning $warn "Authentication won't be used."
USER=""
fi

echo -n "Fetching releases from github for \"$repo_path\"... " 1>&2
echo -n "Fetching releases from github for '$repo_path'... " 1>&2

get_page() {
url=$1
key=$2
page=$3
tmp_file=$(mktemp $tmp_dir/XXXX.tmp)
curl -u "$GITHUB_USER:$GITHUB_USER_TOKEN" -b /tmp/cookies.txt -c /tmp/cookies.txt -s "${url}?page=${page}&per_page=100" > $tmp_file || true
curl $USER -b /tmp/cookies.txt -c /tmp/cookies.txt -s "${url}?page=${page}&per_page=100" > $tmp_file || true
if grep "Bad credentials" $tmp_file >/dev/null ; then
fatal "Bad GitHub credentials"
else
Expand All @@ -52,7 +59,6 @@ get_all_pages() {
key=$2
declare -i page=0
last_page="$(get_page "$url" "$key" "$page")"
touch /tmp/gh_releases

while [[ -n "$last_page" ]]
do
Expand All @@ -62,11 +68,9 @@ get_all_pages() {
done
}


get_all_pages "https://api.github.com/repos/${repo_path}/releases" "tag_name"
get_all_pages "https://api.github.com/repos/${repo_path}/tags" "name"

echo "Done!" 1>&2
cat $tmp_dir/releases | sort --version-sort --unique
[[ -z $DEBUG ]] && rm -rf $tmp_dir