(#123) v0.4.0:

* (#112) Add Git aliases, switch from Travis to GitHub Actions;
* (#113) Fix the Publish Docker workflow;
* (#114) Upgrade to `Ubuntu 20.10`, remove redundant parts;
* (#117) Switch to Podman for building OCI compliant containers;
* (#120) Rewrite the workflow scripts;
* (#121) Update the contents;
* (#122) Hide the output when installing Rust.

.github/scripts/publish.bash

@@ -0,0 +1,17 @@
+#!/bin/bash
+
+# A script to build and push the image
+
+# Build the image
+podman build --squash-all -t $IMAGENAME .
+
+# Login to the GHCR
+echo $GHCR_PAT | podman login ghcr.io -u $USERNAME --password-stdin
+
+# Push the latest version
+podman push $IMAGENAME ghcr.io/$OWNER/$IMAGENAME:latest
+
+# Push the release version
+if [ "$PUBLISH_RELEASE_VERSION" = true ]; then
+    podman push dev ghcr.io/$OWNER/$IMAGENAME:$RELEASE_VERSION
+fi

.github/scripts/version.bash

@@ -0,0 +1,49 @@
+#!/bin/bash
+
+# A script to determine whether a
+# release version should be pushed
+
+# Get last published version
+LAST_VERSION=$(curl --silent "https://api.github.com/repos/$REPOSITORY/releases/latest" | grep '"tag_name":' | sed -E 's/.*"([^"]+)".*/\1/')
+
+# Check if there is some tag
+if [ ! -z "$LAST_VERSION" ]; then
+
+    # Get current tag
+    CURRENT_TAG=$(echo ${GITHUB_REF#refs/*/})
+
+    # Print info
+    echo -e "\n\e[1;36mLast version: $LAST_VERSION\e[0m"
+    echo -e "\e[1;36mCurrent tag:  $CURRENT_TAG\e[0m\n"
+
+    # Check if the tag is a semantic version
+    if echo "$CURRENT_TAG" | grep -E "^v[0-9]+\.[0-9]+\.[0-9]+$"; then
+
+        # Print information
+        echo -e "\e[1;36mCurrent tag is a semantic version. Tagged image will be published.\e[0m\n"
+
+        # Set environment variable
+        echo "RELEASE_VERSION=$(echo $CURRENT_TAG | sed 's/v//')" >> $GITHUB_ENV
+
+        # Publish tagged image
+        echo "PUBLISH_RELEASE_VERSION=true" >> $GITHUB_ENV
+
+    else
+
+        # Print information
+        echo -e "\e[1;36mCurrent tag is not a semantic version. Tagged image will not be published.\e[0m\n"
+
+        # Don't publish tagged image
+        echo "PUBLISH_RELEASE_VERSION=false" >> $GITHUB_ENV
+
+    fi
+
+else
+
+    # Print information
+    echo -e "\n\e[1;36mNo release has been found, tagged version will not be published.\e[0m\n"
+
+    # Don't publish tagged image
+    echo "PUBLISH_RELEASE_VERSION=false" >> $GITHUB_ENV
+
+fi

.github/workflows/build.yml

@@ -0,0 +1,15 @@
+name: Build
+
+on:
+  pull_request:
+    branches:
+      - develop
+
+jobs:
+  Build:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout the repository
+      uses: actions/checkout@master
+    - name: Build the image
+      run: podman build --squash-all -t dev .

.github/workflows/publish.yml

@@ -0,0 +1,26 @@
+name: Publish
+
+on:
+  release:
+      types: [published]
+  push:
+    branches:
+      - develop
+
+env:
+  GHCR_PAT: ${{ secrets.GHCR_PAT }}
+  IMAGENAME: ${{ github.event.repository.name }}
+  OWNER: ${{ github.repository_owner }}
+  REPOSITORY: ${{ github.repository }}
+  USERNAME: ${{ github.actor }}
+
+jobs:
+  Publish:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout the repository
+      uses: actions/checkout@master
+    - name: Determine whether to upload a release version
+      run: bash .github/scripts/version.bash
+    - name: Publish to GHCR
+      run: bash .github/scripts/publish.bash

.github/workflows/release-drafter.yml → .github/workflows/release.yml

@@ -1,16 +1,16 @@
-name: Release Drafter
+name: Release
 
 on:
   push:
     branches:
       - develop
 
 jobs:
-  update:
+  Release:
     runs-on: ubuntu-latest
     steps:
       - uses: release-drafter/release-drafter@v5
         with:
           config-name: config/release-drafter.yml
         env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}