Implement auto-updater

.github/workflows/updater.sh

@@ -0,0 +1,133 @@
+#!/bin/bash
+
+#=================================================
+# PACKAGE UPDATING HELPER
+#=================================================
+
+# This script is meant to be run by GitHub Actions
+# The YunoHost-Apps organisation offers a template Action to run this script periodically
+# Since each app is different, maintainers can adapt its contents so as to perform
+# automatic actions when a new upstream release is detected.
+
+#=================================================
+# FETCHING LATEST RELEASE AND ITS ASSETS
+#=================================================
+
+# Fetching information
+current_version=$(cat manifest.json | jq -j '.version|split("~")[0]')
+# Some jq magic is needed, because the latest upstream release is not always the latest version (e.g. security patches for older versions)
+version=$(curl --silent "https://framagit.org/api/v4/projects/27084/releases" | jq -r '.[] | select( .upcoming_release != true ) | .tag_name' | sort -V | tail -1)
+assets=("https://framagit.org/hubzilla/core/-/archive/$version/core-$version.tar.gz" "https://framagit.org/hubzilla/addons/-/archive/$version/addons-$version.tar.gz")
+
+# Later down the script, we assume the version has only digits and dots
+# Sometimes the release name starts with a "v", so let's filter it out.
+# You may need more tweaks here if the upstream repository has different naming conventions.
+if [[ ${version:0:1} == "v" || ${version:0:1} == "V" ]]; then
+	version=${version:1}
+fi
+
+# Setting up the environment variables
+echo "Current version: $current_version"
+echo "Latest release from upstream: $version"
+echo "VERSION=$version" >> $GITHUB_ENV
+# For the time being, let's assume the script will fail
+echo "PROCEED=false" >> $GITHUB_ENV
+
+# Proceed only if the retrieved version is greater than the current one
+if ! dpkg --compare-versions "$current_version" "lt" "$version" ; then
+	echo "::warning ::No new version available"
+	exit 0
+# Proceed only if a PR for this new version does not already exist
+elif git ls-remote -q --exit-code --heads https://github.com/$GITHUB_REPOSITORY.git ci-auto-update-v$version ; then
+	echo "::warning ::A branch already exists for this update"
+	exit 0
+fi
+
+# Each release can hold multiple assets (e.g. binaries for different architectures, source code, etc.)
+echo "${#assets[@]} available asset(s)"
+
+#=================================================
+# UPDATE SOURCE FILES
+#=================================================
+
+# Here we use the $assets variable to get the resources published in the upstream release.
+# Here is an example for Grav, it has to be adapted in accordance with how the upstream releases look like.
+
+# Let's loop over the array of assets URLs
+for asset_url in ${assets[@]}; do
+
+	echo "Handling asset at $asset_url"
+
+	# Assign the asset to a source file in conf/ directory
+	# Here we base the source file name upon a unique keyword in the assets url (admin vs. update)
+	# Leave $src empty to ignore the asset
+	case $asset_url in
+		*"core"*)
+			src="app"
+			;;
+		*"addons"*)
+			src="app_addons"
+			;;
+		*)
+			src=""
+		;;
+	esac
+
+	# If $src is not empty, let's process the asset
+	if [ ! -z "$src" ]; then
+
+		# Create the temporary directory
+		tempdir="$(mktemp -d)"
+
+		# Download sources and calculate checksum
+		filename=${asset_url##*/}
+		curl --silent -4 -L $asset_url -o "$tempdir/$filename"
+		checksum=$(sha256sum "$tempdir/$filename" | head -c 64)
+
+		# Delete temporary directory
+		rm -rf $tempdir
+
+		# Get extension
+		if [[ $filename == *.tar.gz ]]; then
+			extension=tar.gz
+		else
+			extension=${filename##*.}
+		fi
+
+		# Rewrite source file
+		cat <<EOT > conf/$src.src
+SOURCE_URL=$asset_url
+SOURCE_SUM=$checksum
+SOURCE_SUM_PRG=sha256sum
+SOURCE_FORMAT=$extension
+SOURCE_IN_SUBDIR=true
+SOURCE_FILENAME=
+SOURCE_EXTRACT=true
+EOT
+		echo "... conf/$src.src updated"
+
+	else
+		echo "... asset ignored"
+	fi
+
+done
+
+#=================================================
+# SPECIFIC UPDATE STEPS
+#=================================================
+
+# Any action on the app's source code can be done.
+# The GitHub Action workflow takes care of committing all changes after this script ends.
+
+#=================================================
+# GENERIC FINALIZATION
+#=================================================
+
+# Replace new version in manifest
+echo "$(jq -s --indent 4 ".[] | .version = \"$version~ynh1\"" manifest.json)" > manifest.json
+
+# No need to update the README, yunohost-bot takes care of it
+
+# The Action will proceed only if the PROCEED environment variable is set to true
+echo "PROCEED=true" >> $GITHUB_ENV
+exit 0

.github/workflows/updater.yml

@@ -0,0 +1,52 @@
+# This workflow allows GitHub Actions to automagically update your app whenever a new upstream release is detected.
+# You need to enable Actions in your repository settings, and fetch this Action from the YunoHost-Apps organization.
+# This file should be enough by itself, but feel free to tune it to your needs.
+# It calls updater.sh, which is where you should put the app-specific update steps.
+name: Check for new upstream releases
+on:
+  # Allow to manually trigger the workflow
+  workflow_dispatch:
+  # Run it every day at 6:00 UTC
+  schedule:
+    - cron:  '0 6 * * *'
+jobs:
+  updater:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Fetch the source code
+        uses: actions/checkout@v2
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+      - name: Run the updater script
+        id: run_updater
+        run: |
+          # Setting up Git user
+          git config --global user.name 'yunohost-bot'
+          git config --global user.email 'yunohost-bot@users.noreply.github.com'
+          # Run the updater script
+          /bin/bash .github/workflows/updater.sh
+      - name: Commit changes
+        id: commit
+        if: ${{ env.PROCEED == 'true' }}
+        run: |
+          git commit -am "Upgrade to v$VERSION"
+      - name: Create Pull Request
+        id: cpr
+        if: ${{ env.PROCEED == 'true' }}
+        uses: peter-evans/create-pull-request@v3
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          commit-message: Update to version ${{ env.VERSION }}
+          committer: 'yunohost-bot <yunohost-bot@users.noreply.github.com>'
+          author: 'yunohost-bot <yunohost-bot@users.noreply.github.com>'
+          signoff: false
+          base: testing
+          branch: ci-auto-update-v${{ env.VERSION }}
+          delete-branch: true
+          title: 'Upgrade to version ${{ env.VERSION }}'
+          body: |
+            Upgrade to v${{ env.VERSION }}
+            [See upstream release page](${{ env.RELEASE }})
+            Provided description:
+            ${{ env.DESCRIPTION }}
+          draft: false

manifest.json

@@ -47,7 +47,10 @@
                     "en": "Choose the database to be used for the Hubzilla]",
                     "fr": "Choisissez la database de Hubzilla"
                 },
-                "choices": ["mysql", "postgresql"],
+                "choices": [
+                    "mysql",
+                    "postgresql"
+                ],
                 "default": "mysql"
             }
         ]