Merge pull request #3 from kulovan/fix_syntax_errors_for_commands

Fix command script

src/@orb.yml

@@ -0,0 +1,10 @@
+version: 2.1
+
+description: >
+  The orb helps you that cancel running CI with your GitHub draft pull request
+  automatically to save your credits.
+
+# This information will be displayed in the orb registry and is not mandatory.
+display:
+  home_url: "https://github.com/whyayen/bye-github-draft"
+  source_url: "https://github.com/whyayen/bye-github-draft"

src/commands/check-skippable-pr.yml

@@ -0,0 +1,6 @@
+steps:
+  - run: apk add --no-cache bash curl jq
+  - run:
+      shell: /bin/bash
+      name: Check skippable PR !!!!
+      command: <<include(scripts/check-skippable-pr.sh)>>

src/jobs/check-skippable-pr.yml

@@ -0,0 +1,4 @@
+docker:
+  - image: alpine:3.7
+steps:
+  - check-skippable-pr

src/scripts/check-skippable-pr.sh

@@ -0,0 +1,51 @@
+#!/usr/bin/env bash
+
+required_env_vars=(
+              "GITHUB_TOKEN"
+              "CIRCLE_TOKEN"
+            )
+
+for required_env_var in ${required_env_vars[@]}; do
+  if [[ -z "${!required_env_var}" ]]; then
+    printf "${required_env_var} not provided, but that doesn't mean we should skip CI.\n"
+    exit 0
+  fi
+done
+
+# Since we're piggybacking off of an existing OAuth var, tweak the var for our uses
+token=$(printf "${GITHUB_TOKEN}" | cut -d':' -f1)
+
+headers="Authorization: token $token"
+api_endpoint="https://api.github.com/repos/${CIRCLE_PROJECT_USERNAME}/${CIRCLE_PROJECT_REPONAME}/pulls/${CIRCLE_PULL_REQUEST##*/}"
+
+# Fetch PR metadata from Github's API and parse fields from json
+github_res=$(curl --silent --header "${headers}" "${api_endpoint}" | jq '{draft: .draft, title: .title}')
+draft=$(printf "${github_res}" | jq '.draft')
+title=$(printf "${github_res}" | jq '.title' | tr '[:upper:]' '[:lower:]')
+
+if [[ "${title}" == "null" && "${draft}" == "null" ]]; then
+  printf "Couldn't fetch info on PR, but that doesn't mean we should skip CI.\n"
+  exit 0
+fi
+
+cancel_running_jobs=0
+
+if [[ "${draft}" == true ]]; then
+  printf "PR is a draft, skipping CI!\n"
+  cancel_running_jobs=1
+fi
+
+for skip_token in '[skip ci]' '[ci skip]' '[wip]'; do
+  if [[ ${title} == *"${skip_token}"* ]]; then
+    printf "Found \"${skip_token}\" in PR title, skipping CI!\n"
+    cancel_running_jobs=1
+  fi
+done
+
+if [[ "${cancel_running_jobs}" == 1 ]]; then
+  curl -X POST https://circleci.com/api/v2/workflow/${CIRCLE_WORKFLOW_ID}/cancel -H 'Accept: application/json' -u "${CIRCLE_TOKEN}:"
+  echo 'Cancel'
+else
+  printf "No reason to skip CI, let's go!"
+fi
+exit 0