Remove building from running time (#155)

Part of #4.

Thanks to this, the users don't need to wait for the project to build with Gradle,
which took around 1-2 minutes. Now it takes a few seconds to build the Docker image,
and under 1 second to run the action itself.

.github/workflows/build.main.kts

@@ -25,6 +25,36 @@ workflow(
     ) {
         uses(action = CheckoutV4())
         uses(action = GradleBuildActionV2(arguments = "build"))
+
+        run(
+            name = "Check if the produced files are committed correctly",
+            command = """
+                set -euxo pipefail
+
+                unzip_jar() {
+                    for jar in dist/github-actions-typing/lib/*.jar; do
+                        echo "Extracting ${'$'}jar..."
+                        filename=${'$'}(basename -- "${'$'}jar")
+                        filename="${'$'}{filename%.*}"
+
+                        targetDir="${'$'}1/${'$'}filename"
+                        echo "Target directory: ${'$'}targetDir"
+
+                        mkdir -p "${'$'}targetDir"
+                        unzip -qq "${'$'}jar" -d "${'$'}targetDir"
+                    done
+                }
+
+                unzip_jar "dist-unzipped-before"
+
+                rm -rf dist
+                unzip -qq build/distributions/github-actions-typing.zip -d dist
+
+                unzip_jar "dist-unzipped-after"
+
+                git diff --no-index --exit-code dist-unzipped-before dist-unzipped-after
+            """.trimIndent()
+        )
     }
 
     job(

.github/workflows/build.yaml

@@ -33,6 +33,33 @@ jobs:
       uses: 'gradle/gradle-build-action@v2'
       with:
         arguments: 'build'
+    - id: 'step-2'
+      name: 'Check if the produced files are committed correctly'
+      run: |-
+        set -euxo pipefail
+
+        unzip_jar() {
+            for jar in dist/github-actions-typing/lib/*.jar; do
+                echo "Extracting $jar..."
+                filename=$(basename -- "$jar")
+                filename="${filename%.*}"
+
+                targetDir="$1/$filename"
+                echo "Target directory: $targetDir"
+
+                mkdir -p "$targetDir"
+                unzip -qq "$jar" -d "$targetDir"
+            done
+        }
+
+        unzip_jar "dist-unzipped-before"
+
+        rm -rf dist
+        unzip -qq build/distributions/github-actions-typing.zip -d dist
+
+        unzip_jar "dist-unzipped-after"
+
+        git diff --no-index --exit-code dist-unzipped-before dist-unzipped-after
   validate-types:
     runs-on: 'ubuntu-latest'
     needs:

Dockerfile

@@ -1,13 +1,6 @@
-FROM gradle:8.4.0-jdk17 AS build
-COPY --chown=gradle:gradle . /src
-WORKDIR /src
-RUN gradle build --no-daemon
-RUN rm -rf dist
-RUN unzip build/distributions/github-actions-typing.zip -d dist
-
 FROM eclipse-temurin:21.0.1_12-jre
 RUN mkdir /app
-COPY --from=build /src/dist/github-actions-typing/lib/*.jar /app/
+COPY dist/github-actions-typing/lib/*.jar /app/
 WORKDIR /app
 
 ENTRYPOINT ["java", "-cp", "/app/*", "it.krzeminski.githubactionstyping.MainKt"]