github workflows setup

.github/workflows/ci.yml

@@ -0,0 +1,90 @@
+name: Continuous Integration
+
+on:
+  pull_request:
+    branches: [ '**' ]
+  push:
+    branches: [ master ]
+    tags: [ "*" ]
+
+env:
+  GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+jobs:
+  build:
+    name: Build and Test
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - os: ubuntu-latest
+            distribution: temurin
+            java: 17
+
+    runs-on: ${{ matrix.os }}
+    steps:
+      - name: Checkout current branch (full)
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Setup Java
+        uses: actions/setup-java@v4
+        with:
+          distribution: "${{ matrix.distribution }}"
+          java-version: "${{ matrix.java }}"
+
+      - name: Setup sbt
+        uses: sbt/setup-sbt@v1
+
+      - name: Build project
+        run: sbt -v scalafmtCheckAll test scripted
+        env:
+          PROTOFETCH_GIT_PROTOCOL: https
+
+      - name: Compress target directories
+        run: tar cf targets.tar target sbt-protofetch/target project/target
+
+      - name: Upload target directories
+        uses: actions/upload-artifact@v4
+        with:
+          name: target-${{ matrix.java }}
+          path: targets.tar
+
+  publish:
+    name: Publish Artifacts
+    needs: [ build ]
+    if: github.event_name != 'pull_request' && (startsWith(github.ref, 'refs/tags/v') || github.ref == 'refs/heads/master')
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout current branch (full)
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Setup Java (temurin@17)
+        uses: actions/setup-java@v4
+        with:
+          distribution: temurin
+          java-version: 17
+
+      - name: Setup sbt
+        uses: sbt/setup-sbt@v1
+
+      - name: Download target directories
+        uses: actions/download-artifact@v4
+        with:
+          name: target-17
+
+      - name: Inflate target directories
+        run: |
+          tar xf targets.tar
+          rm targets.tar
+
+      - name: Publish project
+        env:
+          PGP_PASSPHRASE: ${{ secrets.PGP_PASSPHRASE }}
+          PGP_SECRET: ${{ secrets.PGP_SECRET }}
+          SONATYPE_PASSWORD: ${{ secrets.SONATYPE_PASSWORD }}
+          SONATYPE_USERNAME: ${{ secrets.SONATYPE_USERNAME }}
+        run: sbt ci-release

.github/workflows/clean.yml

@@ -0,0 +1,61 @@
+# This file was automatically generated by sbt-github-actions using the
+# githubWorkflowGenerate task. You should add and commit this file to
+# your git repository. It goes without saying that you shouldn't edit
+# this file by hand! Instead, if you wish to make changes, you should
+# change your sbt build configuration to revise the workflow description
+# to meet your needs, then regenerate this file.
+# UPDATE: Plugin was removed since then, but we still keep the file.
+
+name: Clean
+
+on: push
+
+jobs:
+  delete-artifacts:
+    name: Delete Artifacts
+    runs-on: ubuntu-latest
+    env:
+      GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+    steps:
+      - name: Delete artifacts
+        shell: bash {0}
+        run: |
+          # Customize those three lines with your repository and credentials:
+          REPO=${GITHUB_API_URL}/repos/${{ github.repository }}
+
+          # A shortcut to call GitHub API.
+          ghapi() { curl --silent --location --user _:$GITHUB_TOKEN "$@"; }
+
+          # A temporary file which receives HTTP response headers.
+          TMPFILE=$(mktemp)
+
+          # An associative array, key: artifact name, value: number of artifacts of that name.
+          declare -A ARTCOUNT
+
+          # Process all artifacts on this repository, loop on returned "pages".
+          URL=$REPO/actions/artifacts
+          while [[ -n "$URL" ]]; do
+
+            # Get current page, get response headers in a temporary file.
+            JSON=$(ghapi --dump-header $TMPFILE "$URL")
+
+            # Get URL of next page. Will be empty if we are at the last page.
+            URL=$(grep '^Link:' "$TMPFILE" | tr ',' '\n' | grep 'rel="next"' | head -1 | sed -e 's/.*<//' -e 's/>.*//')
+            rm -f $TMPFILE
+
+            # Number of artifacts on this page:
+            COUNT=$(( $(jq <<<$JSON -r '.artifacts | length') ))
+
+            # Loop on all artifacts on this page.
+            for ((i=0; $i < $COUNT; i++)); do
+
+              # Get name of artifact and count instances of this name.
+              name=$(jq <<<$JSON -r ".artifacts[$i].name?")
+              ARTCOUNT[$name]=$(( $(( ${ARTCOUNT[$name]} )) + 1))
+
+              id=$(jq <<<$JSON -r ".artifacts[$i].id?")
+              size=$(( $(jq <<<$JSON -r ".artifacts[$i].size_in_bytes?") ))
+              printf "Deleting '%s' #%d, %'d bytes\n" $name ${ARTCOUNT[$name]} $size
+              ghapi -X DELETE $REPO/actions/artifacts/$id
+            done
+          done

build.sbt

@@ -1,11 +1,12 @@
 val versions = new {
-  val sbt             = "1.6.0"
+  val scala212        = "2.12.20"
+  val sbt             = "1.5.8"
   val commonsCompress = "1.27.1"
   val toml4j          = "0.7.3"
   val munit           = "1.0.2"
 }
 
-val common = Seq(
+val common: Seq[Setting[_]] = Seq(
   organizationName := "Coralogix Ltd.",
   organization     := "com.coralogix",
   startYear        := Some(2024),
@@ -14,14 +15,23 @@ val common = Seq(
   )),
   headerLicense := Some(HeaderLicense.ALv2("2024", "Coralogix Ltd.")),
   homepage      := Some(url("https://github.com/coralogix/sbt-protofetch")),
-  version       := "0.1.0-SNAPSHOT"
+  version       := "0.1.0-SNAPSHOT",
+  scalaVersion  := versions.scala212
 )
 
 lazy val `sbt-protofetch` = (project in file("sbt-protofetch"))
   .enablePlugins(SbtPlugin)
   .settings(common)
   .settings(
-    pluginCrossBuild / sbtVersion := versions.sbt,
+    crossScalaVersions := Seq(versions.scala212),
+    pluginCrossBuild / sbtVersion := {
+      scalaBinaryVersion.value match {
+        case "2.12" =>
+          versions.sbt
+        case _ =>
+          "2.0.0-M2" // just a preparation for Scala 3 / sbt 2
+      }
+    },
     libraryDependencies ++= Seq(
       "org.apache.commons" % "commons-compress" % versions.commonsCompress,
       "io.hotmoka"         % "toml4j"           % versions.toml4j,

project/build.properties

@@ -1 +1 @@
-sbt.version=1.9.7
+sbt.version=1.10.4

project/plugins.sbt

@@ -1,2 +1,3 @@
-addSbtPlugin("org.scalameta"     % "sbt-scalafmt" % "2.5.2")
-addSbtPlugin("de.heikoseeberger" % "sbt-header"   % "5.10.0")
+addSbtPlugin("org.scalameta"     % "sbt-scalafmt"   % "2.5.2")
+addSbtPlugin("de.heikoseeberger" % "sbt-header"     % "5.10.0")
+addSbtPlugin("com.github.sbt"    % "sbt-ci-release" % "1.6.1")