feat: add sqlfluff tool

tools/sgsqlfluff/tools.go

@@ -0,0 +1,61 @@
+package sgsqlfluff
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"os/exec"
+	"path/filepath"
+
+	"go.einride.tech/sage/sg"
+	"go.einride.tech/sage/sgtool"
+)
+
+const (
+	name    = "sqlfluff"
+	version = "0.13.0"
+)
+
+func Command(ctx context.Context, args ...string) *exec.Cmd {
+	sg.Deps(ctx, PrepareCommand)
+	return sg.Command(ctx, sg.FromBinDir(name), args...)
+}
+
+func PrepareCommand(ctx context.Context) error {
+	toolDir := sg.FromToolsDir(name)
+	venvDir := filepath.Join(toolDir, "venv", version)
+	binDir := filepath.Join(venvDir, "bin")
+	binary := filepath.Join(binDir, name)
+	if _, err := os.Stat(binary); err == nil {
+		if _, err := sgtool.CreateSymlink(binary); err != nil {
+			return err
+		}
+		return nil
+	}
+	pip := filepath.Join(binDir, "pip")
+	if err := os.MkdirAll(toolDir, 0o755); err != nil {
+		return err
+	}
+	sg.Logger(ctx).Println("installing packages...")
+	if err := sg.Command(
+		ctx,
+		"python3",
+		"-m",
+		"venv",
+		venvDir,
+	).Run(); err != nil {
+		return err
+	}
+	if err := sg.Command(
+		ctx,
+		pip,
+		"install",
+		fmt.Sprintf("sqlfluff==%s", version),
+	).Run(); err != nil {
+		return err
+	}
+	if _, err := sgtool.CreateSymlink(binary); err != nil {
+		return err
+	}
+	return nil
+}