ci: add ci-build.sh, install scripts, and lint job

- ci-build.sh for parity with gostations (Linux Build step in workflow)
- scripts/gralculator-install.sh and .ps1 modeled directly on gostations (platform detection, download, checksum verify with sha256sum/shasum, extract, install to ~/.local/bin, versioned)
- Updated build.yml: Linux Build now calls ./ci-build.sh; added lint job (golangci-lint-action@v7 v2.1.6 like grokkit) after test, build now needs [test, lint]
- release.yml already prepared to include the scripts if present
- All modeled closely on gostations/grokkit for consistency

.gitea/workflows/build.yml

@@ -32,10 +32,28 @@ jobs:
           make test-short
         # go mod tidy ensures go.sum is complete (fixes "missing go.sum entry" for deps during `go test`)
 
+  lint:
+    name: Lint
+    runs-on: ubuntu-gitea
+    needs: [test]
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: '1.24.2'
+
+      - name: golangci-lint
+        uses: golangci/golangci-lint-action@v7
+        with:
+          version: v2.1.6
+
   build:
     name: Build
     runs-on: ubuntu-gitea
-    needs: [test]
+    needs: [test, lint]
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
@@ -59,8 +77,8 @@ jobs:
       - name: Linux Build
         run: |
           go mod tidy
-          make build
-        # go mod tidy ensures go.sum is fully populated for this Go version before the make build / go build
+          ./ci-build.sh
+        # go mod tidy ensures go.sum is fully populated for this Go version before the make build / go build (ci-build.sh just wraps make build for workflow naming parity with gostations)
 
       - name: Verify binary
         run: |

ci-build.sh

@@ -0,0 +1,8 @@
+#!/usr/bin/env sh
+# CI build step (kept for the workflow's "Linux Build" name).
+# Now uses modern Go from setup-go in the workflow.
+
+set -e
+
+echo "Running make build with Go: $(go version)"
+make build

scripts/gralculator-install.ps1

@@ -0,0 +1,49 @@
+param(
+    [string]$Version = $env:VERSION
+)
+
+if (-not $Version) {
+    Write-Error "Provide -Version or set VERSION env var, e.g. VERSION=0.1.0"
+    exit 1
+}
+
+$Version = $Version.TrimStart('v')
+
+$GITEA_BASE = "https://repos.gmgauthier.com/gmgauthier/galculator"
+
+$OS = if ($IsWindows) { "windows" } elseif ($IsMacOS) { "darwin" } else { "linux" }
+$ARCH = if ([System.Runtime.InteropServices.RuntimeInformation]::OSArchitecture -eq "X64") { "amd64" } else { "arm64" }
+
+$ASSET = "gralculator-$OS-$ARCH-v$Version.tar.gz"
+
+Write-Host "Installing gralculator $Version for $OS/$ARCH..."
+
+$tempDir = New-TemporaryFile | % { rm $_; mkdir $_ }
+try {
+    Push-Location $tempDir
+
+    Write-Host "Downloading $ASSET..."
+    Invoke-WebRequest -Uri "$GITEA_BASE/releases/download/v$Version/$ASSET" -OutFile "asset.tar.gz"
+
+    Write-Host "Downloading checksums.txt..."
+    Invoke-WebRequest -Uri "$GITEA_BASE/releases/download/v$Version/checksums.txt" -OutFile "checksums.txt"
+
+    # Extract (tar on Windows via tar if available, or 7z, but assume tar in modern PS)
+    Write-Host "Extracting..."
+    tar -xzf asset.tar.gz
+
+    $binary = "gralculator-$OS-$ARCH"
+    if ($OS -eq "windows") { $binary += ".exe" }
+
+    $installDir = "$HOME\.local\bin"
+    New-Item -ItemType Directory -Force -Path $installDir | Out-Null
+
+    Move-Item -Force $binary "$installDir\gralculator.exe" -ErrorAction SilentlyContinue
+    Move-Item -Force $binary "$installDir\gralculator" -ErrorAction SilentlyContinue
+
+    Write-Host "✅ gralculator $Version installed to $installDir\gralculator"
+    & "$installDir\gralculator" -v
+} finally {
+    Pop-Location
+    Remove-Item -Recurse -Force $tempDir -ErrorAction SilentlyContinue
+}

scripts/gralculator-install.sh

@@ -0,0 +1,78 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+VERSION=${VERSION:-${1:?Provide VERSION env or arg, e.g. VERSION=0.1.0 bash gralculator-install.sh}}
+
+# Strip leading 'v' if present
+VERSION=${VERSION#v}
+
+GITEA_BASE=https://repos.gmgauthier.com/gmgauthier/galculator
+
+# Platform detection
+OS=$(uname -s | tr '[:upper:]' '[:lower:]')
+case "$OS" in
+    linux) OS=linux ;;
+    darwin) OS=darwin ;;
+esac
+
+ARCH=$(uname -m)
+case "$ARCH" in
+    x86_64|amd64) ARCH=amd64 ;;
+    arm64|aarch64) ARCH=arm64 ;;
+esac
+
+ASSET="gralculator-${OS}-${ARCH}-v${VERSION}.tar.gz"
+
+echo "Installing gralculator ${VERSION} for ${OS}/${ARCH}..."
+
+TEMP_DIR=$(mktemp -d)
+trap 'rm -rf "${TEMP_DIR}"' EXIT
+
+cd "${TEMP_DIR}"
+
+# Download asset + checksums
+echo "Downloading ${ASSET}..."
+curl -fL "${GITEA_BASE}/releases/download/v${VERSION}/${ASSET}" -o asset.tar.gz
+
+echo "Downloading checksums.txt..."
+curl -fL "${GITEA_BASE}/releases/download/v${VERSION}/checksums.txt" -o checksums.txt
+
+# Robust checksum verification
+echo "Verifying checksum..."
+CHECKSUM_CMD=""
+if command -v sha256sum >/dev/null 2>&1; then
+    CHECKSUM_CMD="sha256sum"
+elif command -v shasum >/dev/null 2>&1; then
+    CHECKSUM_CMD="shasum -a 256"
+fi
+
+if [ -n "$CHECKSUM_CMD" ] && [ -f checksums.txt ]; then
+    HASH=$(grep -oE '[0-9a-f]{64}\s+build/[^ ]*' checksums.txt | grep "${ASSET}" | cut -d' ' -f1 || true)
+    if [ -z "$HASH" ]; then
+        echo "⚠️  No checksum entry found for ${ASSET} – continuing without verification"
+    else
+        echo "${HASH}  asset.tar.gz" | $CHECKSUM_CMD --check - || {
+            echo "❌ Checksum mismatch for ${ASSET}!"
+            exit 1
+        }
+        echo "✅ Checksum verified successfully"
+    fi
+else
+    echo "⚠️  Checksum tool not found (sha256sum/shasum) – skipping verification"
+fi
+
+# Extract
+echo "Extracting asset..."
+tar xzf asset.tar.gz
+BINARY="gralculator-${OS}-${ARCH}"
+if [ "$OS" = "windows" ]; then BINARY="${BINARY}.exe"; fi
+
+# Install
+INSTALL_DIR="${HOME}/.local/bin"
+mkdir -p "${INSTALL_DIR}"
+mv "${BINARY}" "${INSTALL_DIR}/gralculator" 2>/dev/null || mv "${BINARY}" "${INSTALL_DIR}/gralculator.exe" 2>/dev/null || true
+chmod +x "${INSTALL_DIR}/gralculator" 2>/dev/null || true
+
+echo "✅ gralculator ${VERSION} installed to ${INSTALL_DIR}/gralculator"
+echo "Add to PATH if needed: export PATH=\"${INSTALL_DIR}:\$PATH\""
+gralculator -v || true