Auto-install golangci-lint

.golangci.yml

@@ -31,6 +31,7 @@ linters:
     - ireturn
     - varnamelen
     - exhaustruct
+    - depguard
 
 issues:
   exclude-rules:

config/binaries.go

@@ -0,0 +1,61 @@
+package config
+
+import (
+	"context"
+	"fmt"
+	"log"
+	"os"
+
+	"github.com/cardil/ghet/pkg/ghet/download"
+	"github.com/cardil/ghet/pkg/ghet/install"
+)
+
+type Binaries interface {
+	Configurator
+	Install(ctx context.Context, destination string) error
+
+	merge(b *binaries)
+}
+
+func NewBinaries(bins ...string) Binaries {
+	return &binaries{
+		bins: bins,
+	}
+}
+
+type binaries struct {
+	bins []string
+}
+
+func (b *binaries) Install(ctx context.Context, destination string) error {
+	for _, binSpec := range b.bins {
+		args := download.Args{
+			Args:        install.Parse(binSpec),
+			Destination: destination,
+		}
+		bin := args.Asset.FileName.ToString()
+		path := fmt.Sprintf("%s/%s", destination, bin)
+		if fileExist(path) {
+			log.Println("Skipping installation of", binSpec,
+				"because it already exists:", path)
+			continue
+		}
+		if err := download.Action(ctx, args); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (b *binaries) Configure(cfg Configurable) {
+	cfg.Config().Dependencies.Binaries.merge(b)
+}
+
+func (b *binaries) merge(b2 *binaries) {
+	b.bins = append(b.bins, b2.bins...)
+}
+
+func fileExist(path string) bool {
+	_, err := os.Stat(path)
+	return err == nil
+}

config/defaults.go

@@ -25,8 +25,11 @@ func FillInDefaultValues(cfg Config) Config {
 			Label: "[MAGE]",
 		}
 	}
-	if cfg.Dependencies == nil {
-		cfg.Dependencies = NewDependencies("gotest.tools/gotestsum@latest")
+	if cfg.Dependencies.Golang == nil {
+		cfg.Dependencies.Golang = NewDependencies("gotest.tools/gotestsum@latest")
+	}
+	if cfg.Dependencies.Binaries == nil {
+		cfg.Dependencies.Binaries = NewBinaries()
 	}
 	if cfg.Context == nil {
 		cfg.Context = context.TODO()

config/deps.go

@@ -1,9 +1,17 @@
 package config
 
+import (
+	"context"
+
+	"github.com/magefile/mage/sh"
+)
+
 type Dependencies interface {
 	Configurator
-	Installs() []string
-	merge(other Dependencies)
+	Install(ctx context.Context, dest string) error
+
+	merge(other dependencies)
+	installs() []string
 }
 
 func NewDependencies(deps ...string) Dependencies {
@@ -22,7 +30,20 @@ type dependencies struct {
 	set map[string]bool
 }
 
-func (d dependencies) Installs() []string {
+func (d dependencies) Install(_ context.Context, dest string) error {
+	for _, dep := range d.installs() {
+		env := map[string]string{
+			"GOBIN": dest,
+		}
+		err := sh.RunWith(env, "go", "install", dep)
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (d dependencies) installs() []string {
 	keys := make([]string, len(d.set))
 
 	i := 0
@@ -35,11 +56,11 @@ func (d dependencies) Installs() []string {
 }
 
 func (d dependencies) Configure(cfg Configurable) {
-	cfg.Config().Dependencies.merge(d)
+	cfg.Config().Dependencies.Golang.merge(d)
 }
 
-func (d dependencies) merge(other Dependencies) {
-	for _, dep := range other.Installs() {
+func (d dependencies) merge(other dependencies) {
+	for _, dep := range other.installs() {
 		d.set[dep] = exists
 	}
 }

config/types.go

@@ -4,6 +4,7 @@ import (
 	"context"
 
 	"github.com/fatih/color"
+
 	"github.com/wavesoftware/go-magetasks/pkg/version"
 )
 
@@ -21,9 +22,12 @@ type Config struct {
 	// MageTag holds default mage tag settings.
 	MageTag
 
-	// Dependencies will hold additional Golang dependencies that needs to be
-	// installed before running tasks.
-	Dependencies Dependencies
+	// Dependencies will hold additional Golang and pre-compiled dependencies
+	// that needs to be installed before running tasks.
+	Dependencies struct {
+		Golang Dependencies
+		Binaries
+	}
 
 	// Artifacts holds a list of artifacts to be built.
 	Artifacts []Artifact