Adds an automatic release process

.github/workflows/release.yml

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+name: Release Obsidian plugin
+
+on:
+  push:
+    tags:
+      - '*'
+
+env:
+  PLUGIN_NAME: pocketbook-cloud-highlight-importer
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+      - name: Use Node.js
+        uses: actions/setup-node@v1
+        with:
+          node-version: '19.x'
+
+      - name: Build
+        id: build
+        run: |
+          npm install
+          npm run build
+          mkdir ${{ env.PLUGIN_NAME }}
+          cp main.js manifest.json ${{ env.PLUGIN_NAME }}
+          zip -r ${{ env.PLUGIN_NAME }}.zip ${{ env.PLUGIN_NAME }}
+          ls
+          echo "::set-output name=tag_name::$(git tag --sort version:refname | tail -n 1)"
+
+      - name: Create Release
+        id: create_release
+        uses: actions/create-release@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          VERSION: ${{ github.ref }}
+        with:
+          tag_name: ${{ github.ref }}
+          release_name: ${{ github.ref }}
+          draft: false
+          prerelease: false
+
+      - name: Upload zip file
+        id: upload-zip
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ steps.create_release.outputs.upload_url }}
+          asset_path: ./${{ env.PLUGIN_NAME }}.zip
+          asset_name: ${{ env.PLUGIN_NAME }}-${{ steps.build.outputs.tag_name }}.zip
+          asset_content_type: application/zip
+
+      - name: Upload main.js
+        id: upload-main
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ steps.create_release.outputs.upload_url }}
+          asset_path: ./main.js
+          asset_name: main.js
+          asset_content_type: text/javascript
+
+      - name: Upload manifest.json
+        id: upload-manifest
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ steps.create_release.outputs.upload_url }}
+          asset_path: ./manifest.json
+          asset_name: manifest.json
+          asset_content_type: application/json

release.sh

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+#!/bin/bash
+# cd to git root https://stackoverflow.com/a/38843585
+r=$(git rev-parse --git-dir) && r=$(cd "$r" && pwd)/ && cd "${r%%/.git/*}"
+
+if [[ ! -f "./manifest.json" ]] ; then
+	echo "manifest.json does not exist yet"
+	return
+fi
+if [[ ! -f "./.github/workflows/release.yml" ]] ; then
+	echo "/.github/workflows/release.yml does not exist yet"
+	return
+fi
+
+# get version number from the manifest of the latest release
+repoURL=$(git remote -v | grep git@github.com | grep fetch | head -n1 | cut -f2 | cut -d' ' -f1 | sed -e's/:/\//' -e 's/git@/https:\/\//' -e 's/\.git//' )
+manifestURL="$repoURL"/releases/latest/download/manifest.json
+lastVersion=$(curl -sL "$manifestURL" | grep "version" | cut -d\" -f4)
+echo "last version: $lastVersion"
+
+# Ask for new version number
+echo -n "next version: "
+read nextVersion
+
+# set version number in `manifest.json`
+sed -E -i '' "s/\"version\".*/\"version\": \"$nextVersion\",/" "manifest.json"
+
+# set version number in `package.json`
+sed -E -i '' "s/\"version\".*/\"version\": \"$nextVersion\",/" "package.json"
+
+# add version number in `versions.json`, assuming same compatibility
+cat "versions.json" | egrep -v "^$" | grep -v "}" | sed -e '$ d' > temp
+minObsidianVersion=$(cat "versions.json" | egrep -v "^$" | grep -v "}" | tail -n1 | cut -d\" -f4)
+echo "  \"$lastVersion\": \"$minObsidianVersion\"," >> temp
+echo "  \"$nextVersion\": \"$minObsidianVersion\"" >> temp
+echo "}" >> temp
+mv temp versions.json
+
+# push the manifest and versions JSONs
+git add -A
+git commit -m "version bump to $nextVersion"
+git push
+
+# trigger the release action
+git tag "$nextVersion"
+git push origin --tags