maxim · October 5, 2025 23:43 · Nov 5, 2015 · Nov 5, 2015
diff --git a/gh-dl-release b/gh-dl-release
@@ -0,0 +1,55 @@
+#!/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.
+#
+# PREREQUISITES
+#
+# curl, wget, jq
+#
+# USAGE
+#
+# Set all the variables inside the script, make sure you chmod +x it, then
+# to download specific version to my_app.tar.gz:
+#
+#     gh-dl-release 2.1.1 my_app.tar.gz
+#
+# to download latest version:
+#
+#     gh-dl-release latest latest.tar.gz
+#
+# If your version/tag doesn't match, the script will exit with error.
+
+TOKEN="<github_access_token>"
+REPO="<user_or_org>/<repo_name>"
+FILE="<name_of_asset_file>"      # the name of your release asset file, e.g. build.tar.gz
+VERSION=$1                       # tag name or the word "latest"
+GITHUB="https://api.github.com"
+
+alias errcho='>&2 echo'
+
+function gh_curl() {
+  curl -H "Authorization: token $TOKEN" \
+       -H "Accept: application/vnd.github.v3.raw" \
+       $@
+}
+
+if [ "$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;
+
+asset_id=`gh_curl -s $GITHUB/repos/$REPO/releases | jq "$parser"`
+if [ "$asset_id" = "null" ]; then
+  errcho "ERROR: version not found $VERSION"
+  exit 1
+fi;
+
+wget -q --auth-no-challenge --header='Accept:application/octet-stream' \
+  https://$TOKEN:@api.github.com/repos/$REPO/releases/assets/$asset_id \
+  -O $2