versioning.yaml

name: versioning
run-name: versioning tasks

on:
  pull_request:
    branches:
      - main
  push:
    branches:
      - main

permissions:
  contents: write

jobs:
  pull-request:
    # only run on template itself, not user instance of template
    if: |
      github.repository == 'greenelab/lab-website-template' &&
      github.event_name == 'pull_request'
    runs-on: ubuntu-latest
    steps:
      # for debugging
      - name: Print contexts
        uses: crazy-max/ghaction-dump-context@v1

      - name: Checkout base branch contents
        uses: actions/checkout@v3
        with:
          ref: main
          path: base

      - name: Checkout pr branch contents
        uses: actions/checkout@v3
        with:
          path: pr

      - name: Install packages
        run: yarn add yaml semver

      - name: Check version, date, changelog
        uses: actions/github-script@v6
        with:
          script: |
            const { readFileSync } = require("fs");
            const { lte, valid } = require("semver");
            const { parse } = require("yaml");

            // load and parse file contents
            const { version: oldVersion, "date-released": oldDate } = parse(
              readFileSync("base/CITATION.cff").toString()
            );
            const { version: newVersion, "date-released": newDate } = parse(
              readFileSync("pr/CITATION.cff").toString()
            );
            const changelog = readFileSync("pr/CHANGELOG.md")
              .toString()
              .split(/^## /m)
              .map((section) => {
                const [heading, ...body] = section.split("\n");
                return [heading.trim(), body.join("\n").trim()];
              });

            // check version
            if (!valid(newVersion)) throw Error("Version not valid");
            if (lte(newVersion, oldVersion)) throw Error("Version not updated");

            // check date
            if (new Date(newDate).toISOString().split("T")[0] !== newDate)
              throw Error("Date not valid");
            if (new Date(newDate) <= new Date(oldDate)) throw Error("Date not updated");

            // check changelog
            const newSection = changelog.find(
              ([heading, body]) =>
                heading.includes(newVersion) && heading.includes(newDate) && body
            );
            if (!newSection) throw Error("Changelog not updated or not valid");

  push:
    # only run on template itself, not user instance of template
    if: |
      github.repository == 'greenelab/lab-website-template' &&
      github.event_name == 'push'
    runs-on: ubuntu-latest
    steps:
      # for debugging
      - name: Print contexts
        uses: crazy-max/ghaction-dump-context@v1

      - name: Checkout branch contents
        uses: actions/checkout@v3

      - name: Install packages
        run: yarn add yaml semver

      - name: Get version and body
        id: version
        uses: actions/github-script@v6
        with:
          script: |
            const { readFileSync } = require("fs");
            const { parse } = require("yaml");

            // load and parse file contents
            const { version, "date-released": date } = parse(
              readFileSync("CITATION.cff").toString()
            );
            const changelog = readFileSync("CHANGELOG.md")
              .toString()
              .split(/^## /m)
              .map((section) => {
                const [heading, ...body] = section.split("\n");
                return [heading.trim(), body.join("\n").trim()];
              });

            // find changelog body for version
            const [, body = ""] =
              changelog.find(
                ([heading]) => heading.includes(version) && heading.includes(date)
              ) || [];

            return { version, body };

      - name: Create GitHub release
        uses: ncipollo/release-action@v1
        with:
          commit: ${{ github.ref }}
          tag: v${{ fromJson(steps.version.outputs.result).version }}
          name: v${{ fromJson(steps.version.outputs.result).version }}
          body: ${{ fromJson(steps.version.outputs.result).body }}