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Download assets from private Github releases
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#!/usr/bin/env bash | |
# | |
# gh-dl-release! It works! | |
# | |
# This script downloads an asset from latest or specific Github release of a | |
# private repo. Feel free to extract more of the variables into command line | |
# parameters. | |
# | |
# Based on https://gist.github.com/deevus/af29b590e53a8249df5a852a7f7c5b14, with | |
# wget dependency removed as suggested in https://gist.github.com/deevus/af29b590e53a8249df5a852a7f7c5b14#gistcomment-2830244 | |
# | |
# PREREQUISITES | |
# | |
# curl, jq | |
# | |
# If your version/tag doesn't match, the script will exit with error. | |
usage() { echo "Usage: $0 -t <github token> -r <repo> -v <version> -f <file> -o <output path> -q" 1>&2; exit 1; } | |
while getopts "qt:v:r:f:o:" o; do | |
case "${o}" in | |
t) | |
TOKEN=${OPTARG} | |
;; | |
v) | |
VERSION=${OPTARG} | |
;; | |
r) | |
REPO=${OPTARG} | |
;; | |
f) | |
FILE=${OPTARG} | |
;; | |
o) | |
OUTPUT=${OPTARG} | |
;; | |
q) | |
QUIET=1 | |
;; | |
*) | |
usage | |
;; | |
esac | |
done | |
shift $((OPTIND-1)) | |
if [ -z "$OUTPUT" ]; then | |
OUTPUT=$FILE | |
fi | |
if [ -z "$TOKEN" ] || [ -z "$VERSION" ] || [ -z "$REPO" ] || [ -z "$FILE" ] || [ -z "$OUTPUT" ]; then | |
usage | |
fi | |
GITHUB="https://api.github.com"; | |
alias errcho='>&2 echo' | |
gh_curl() { | |
curl -H "Authorization: token $TOKEN" \ | |
-H "Accept: application/vnd.github.v3.raw" \ | |
-s \ | |
$@ | |
} | |
version_exists() { | |
jq ". | map(select(.tag_name == \"$VERSION\")) | length" | |
} | |
maybe_echo() { | |
if [ -z "$QUIET" ]; then | |
echo "$@" | |
fi | |
} | |
echo_error() { | |
>&2 maybe_echo "ERROR: $@" | |
} | |
echo_info() { | |
maybe_echo "INFO: $@" | |
} | |
echo_success() { | |
maybe_echo SUCCESS: $@ | |
} | |
if [ "$VERSION" = "latest" ]; then | |
# Github should return the latest release first. | |
parser=".[0].assets | map(select(.name == \"$FILE\"))[0].id" | |
else | |
parser=". | map(select(.tag_name == \"$VERSION\"))[0].assets | map(select(.name == \"$FILE\"))[0].id" | |
fi | |
RESPONSE=$(gh_curl $GITHUB/repos/$REPO/releases) | |
if [ "$(echo $RESPONSE | version_exists)" = "0" ]; then | |
echo_error "version '$VERSION' not found" | |
exit 1 | |
else | |
echo_info "Found version '$VERSION'" | |
fi | |
ASSET_ID=$(echo $RESPONSE | jq "$parser") | |
if [ "$ASSET_ID" = "null" ]; then | |
echo_error "Could not find asset '$FILE'" | |
exit 1 | |
else | |
echo_info "Found asset '$FILE'" | |
fi | |
curl -sL --header "Authorization: token $TOKEN" --header 'Accept: application/octet-stream' https://api.github.com/repos/$REPO/releases/assets/$ASSET_ID -O $OUTPUT | |
echo_success "Asset '$OUTPUT' saved successfully" |
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