mk-release.sh

#!/bin/bash

log() {
  echo "$@" 1>&2
}

create-release() {
  local url="https://api.github.com/repos/$owner/$repo/releases"
  local payload="{\"tag_name\":\"v$version\"}"
  log "post to $url with $payload..."
  local result=$(curl -XPOST -d $payload -H 'Content-Type: application/json' -H "Authorization: token $GITHUB_ACCESS_TOKEN" $url)
  local release=$(node -pe "($result).id")
  if [ $release = undefined ]; then
    log "failed to create release: $(node -pe "($result).message")"
    exit 1
  fi
  echo $release
}

upload-asset() {
  local n=${1-5}
  if [ $n -eq 0 ]; then
    echo undefined
    exit 1
  fi
  local url="https://uploads.github.com/repos/$owner/$repo/releases/$release/assets?name=$version.tgz"
  log "uploading to $url... ($n)"
  local result=$(curl -XPOST -H 'Content-Type: application/gzip' -H "Authorization: token $GITHUB_ACCESS_TOKEN" --data-binary @release/$version.tgz $url)
  local asset=$(node -pe "($result).id" || echo undefined)
  if [ $asset = undefined ]; then
    log "upload failed..."
    log $result
    upload-asset $(( $n - 1 ))
    return
  fi
  echo $asset
}

npv() {
  node -pe "($(cat package.json)).version"
}

mk-release-asset() {
  mkdir -p release
  rm release/*
  log "creating release asset v$version..."
  tar cz --exclude .git --exclude release --exclude mk-release -f "release/$version.tgz" .
  log "release asset v$version created."
}

owner=$1
repo=$2
version=$(npv)

log "create release v$version on $owner/$repo..."
mk-release-asset
release=$(create-release)
if [ $? -gt 0 ]; then
  exit 1
fi
echo "release id: $release"
asset=$(upload-asset)
log "asset uploaded: $asset"