Merge pull request #364 from suzuki-shunsuke/feat/add-which

feat: add command "which"

.github/workflows/integration-test.yaml

@@ -28,6 +28,8 @@ jobs:
     - run: aqua i -l -a
     - run: cmdx -v
     - run: aqua i --test
+    - run: aqua which golangci-lint
+    - run: aqua which go
     - run: golangci-lint version
     - run: kind version
     - run: restic version

pkg/cli/runner.go

@@ -78,6 +78,11 @@ func (runner *Runner) Run(ctx context.Context, args ...string) error { //nolint:
 				Usage:  "List packages in Registries",
 				Action: runner.listAction,
 			},
+			{
+				Name:   "which",
+				Usage:  "Output the file path of the given command",
+				Action: runner.whichAction,
+			},
 			{
 				Name:    "generate",
 				Aliases: []string{"g"},

pkg/cli/which.go

@@ -0,0 +1,22 @@
+package cli
+
+import (
+	"fmt"
+
+	"github.com/suzuki-shunsuke/aqua/pkg/controller"
+	"github.com/urfave/cli/v2"
+)
+
+func (runner *Runner) whichAction(c *cli.Context) error {
+	param := &controller.Param{}
+	if err := runner.setCLIArg(c, param); err != nil {
+		return fmt.Errorf("parse the command line arguments: %w", err)
+	}
+
+	ctrl, err := controller.New(c.Context, param)
+	if err != nil {
+		return fmt.Errorf("initialize a controller: %w", err)
+	}
+
+	return ctrl.Which(c.Context, param, c.Args().Slice()) //nolint:wrapcheck
+}

pkg/controller/which.go

@@ -0,0 +1,92 @@
+package controller
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"path/filepath"
+
+	"github.com/sirupsen/logrus"
+	"github.com/suzuki-shunsuke/logrus-error/logerr"
+)
+
+func (ctrl *Controller) Which(ctx context.Context, param *Param, args []string) error { //nolint:cyclop,funlen
+	if len(args) == 0 {
+		return errCommandIsRequired
+	}
+
+	exeName := filepath.Base(args[0])
+	fields := logrus.Fields{
+		"exe_name": exeName,
+	}
+
+	wd, err := os.Getwd()
+	if err != nil {
+		return fmt.Errorf("get the current directory: %w", logerr.WithFields(err, fields))
+	}
+
+	if cfgFilePath := ctrl.getConfigFilePath(wd, param.ConfigFilePath); cfgFilePath != "" {
+		pkg, pkgInfo, file, err := ctrl.findExecFile(ctx, cfgFilePath, exeName)
+		if err != nil {
+			return err
+		}
+		if pkg != nil {
+			return ctrl.which(pkg, pkgInfo, file)
+		}
+	}
+
+	for _, cfgFilePath := range getGlobalConfigFilePaths() {
+		if _, err := os.Stat(cfgFilePath); err != nil {
+			continue
+		}
+		pkg, pkgInfo, file, err := ctrl.findExecFile(ctx, cfgFilePath, exeName)
+		if err != nil {
+			return err
+		}
+		if pkg != nil {
+			return ctrl.which(pkg, pkgInfo, file)
+		}
+	}
+
+	cfgFilePath := ctrl.ConfigFinder.FindGlobal(ctrl.RootDir)
+	if _, err := os.Stat(cfgFilePath); err != nil {
+		exePath := lookPath(exeName)
+		if exePath == "" {
+			return logerr.WithFields(errCommandIsNotFound, logrus.Fields{ //nolint:wrapcheck
+				"exe_name": exeName,
+			})
+		}
+		fmt.Fprintln(ctrl.Stdout, exePath)
+		return nil
+	}
+
+	pkg, pkgInfo, file, err := ctrl.findExecFile(ctx, cfgFilePath, exeName)
+	if err != nil {
+		return err
+	}
+	if pkg == nil {
+		exePath := lookPath(exeName)
+		if exePath == "" {
+			return logerr.WithFields(errCommandIsNotFound, logrus.Fields{ //nolint:wrapcheck
+				"exe_name": exeName,
+			})
+		}
+		fmt.Fprintln(ctrl.Stdout, exePath)
+		return nil
+	}
+
+	return ctrl.which(pkg, pkgInfo, file)
+}
+
+func (ctrl *Controller) which(pkg *Package, pkgInfo *MergedPackageInfo, file *File) error {
+	fileSrc, err := pkgInfo.GetFileSrc(pkg, file)
+	if err != nil {
+		return fmt.Errorf("get file_src: %w", err)
+	}
+	pkgPath, err := pkgInfo.GetPkgPath(ctrl.RootDir, pkg)
+	if err != nil {
+		return fmt.Errorf("get pkg install path: %w", err)
+	}
+	fmt.Fprintln(ctrl.Stdout, filepath.Join(pkgPath, fileSrc))
+	return nil
+}