Updates decompression logic

- vacation is about to remove the TarGzipArchive in favor of wrapped
compression type into archive type. I have moved from specifying the
type of archive to using to generic archive type (long overdue hooray!)

- I removed the ioutil library as it is deprecated

Signed-off-by: Forest Eckhardt <feckhardt@pivotal.io>

cache_manager_test.go

@@ -3,7 +3,6 @@ package freezer_test
 import (
 	"bytes"
 	"encoding/gob"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"testing"
@@ -25,7 +24,7 @@ func testCacheManager(t *testing.T, context spec.G, it spec.S) {
 
 	it.Before(func() {
 		var err error
-		cacheDir, err = ioutil.TempDir("", "cache")
+		cacheDir, err = os.MkdirTemp("", "cache")
 		Expect(err).ToNot(HaveOccurred())
 
 		cacheManager = freezer.NewCacheManager(cacheDir)
@@ -46,7 +45,7 @@ func testCacheManager(t *testing.T, context spec.G, it spec.S) {
 				err := gob.NewEncoder(b).Encode(&inputMap)
 				Expect(err).ToNot(HaveOccurred())
 
-				Expect(ioutil.WriteFile(filepath.Join(cacheDir, "buildpacks-cache.db"), b.Bytes(), os.ModePerm))
+				Expect(os.WriteFile(filepath.Join(cacheDir, "buildpacks-cache.db"), b.Bytes(), os.ModePerm))
 			})
 
 			it("returns the cache map stored in the buildpacks-cache.db folder", func() {
@@ -84,7 +83,7 @@ func testCacheManager(t *testing.T, context spec.G, it spec.S) {
 
 			context("unable to open the buildpack-cache.db", func() {
 				it.Before(func() {
-					Expect(ioutil.WriteFile(filepath.Join(cacheDir, "buildpacks-cache.db"), []byte{}, 0000))
+					Expect(os.WriteFile(filepath.Join(cacheDir, "buildpacks-cache.db"), []byte{}, 0000))
 				})
 				it("returns an error", func() {
 					err := cacheManager.Open()
@@ -94,7 +93,7 @@ func testCacheManager(t *testing.T, context spec.G, it spec.S) {
 
 			context("unable to open the buildpack-cache.db", func() {
 				it.Before(func() {
-					Expect(ioutil.WriteFile(filepath.Join(cacheDir, "buildpacks-cache.db"), []byte(`%%%`), os.ModePerm))
+					Expect(os.WriteFile(filepath.Join(cacheDir, "buildpacks-cache.db"), []byte(`%%%`), os.ModePerm))
 				})
 				it("returns an error", func() {
 					err := cacheManager.Open()
@@ -142,7 +141,7 @@ func testCacheManager(t *testing.T, context spec.G, it spec.S) {
 		context("when the key exists", func() {
 			context("and the file in uri exists", func() {
 				it.Before(func() {
-					Expect(ioutil.WriteFile(uri, []byte(`some-content`), 0644)).To(Succeed())
+					Expect(os.WriteFile(uri, []byte(`some-content`), 0644)).To(Succeed())
 				})
 
 				it("returns the entry and ok", func() {
@@ -175,7 +174,7 @@ func testCacheManager(t *testing.T, context spec.G, it spec.S) {
 		context("failure cases", func() {
 			context("the cached file is cannot be stated", func() {
 				it.Before(func() {
-					Expect(ioutil.WriteFile(uri, []byte(`some-content`), 0644)).To(Succeed())
+					Expect(os.WriteFile(uri, []byte(`some-content`), 0644)).To(Succeed())
 
 					Expect(os.Chmod(cacheDir, 0000)).To(Succeed())
 				})
@@ -201,7 +200,7 @@ func testCacheManager(t *testing.T, context spec.G, it spec.S) {
 
 			uri = filepath.Join(cacheDir, "some-file")
 
-			Expect(ioutil.WriteFile(uri, []byte(`some content`), 0644)).To(Succeed())
+			Expect(os.WriteFile(uri, []byte(`some content`), 0644)).To(Succeed())
 
 			cacheManager.Cache = freezer.CacheDB{"some-buildpack": freezer.CacheEntry{Version: "1.2.3", URI: uri}}
 		})

file_system_test.go

@@ -1,7 +1,6 @@
 package freezer_test
 
 import (
-	"io/ioutil"
 	"os"
 	"testing"
 
@@ -15,7 +14,7 @@ func testFileSystem(t *testing.T, context spec.G, it spec.S) {
 
 	context("TempDir", func() {
 		it("returns the value given from the TempDir function", func() {
-			filename, err := ioutil.TempDir("", "tempDir")
+			filename, err := os.MkdirTemp("", "tempDir")
 			defer os.RemoveAll(filename)
 
 			fileSystem := freezer.NewFileSystem(func(string, string) (string, error) {

github/release_service_test.go

@@ -2,7 +2,7 @@ package github_test
 
 import (
 	"fmt"
-	"io/ioutil"
+	"io"
 	"net/http"
 	"net/http/httptest"
 	"net/http/httputil"
@@ -178,7 +178,7 @@ func testReleaseService(t *testing.T, context spec.G, it spec.S) {
 			})
 			Expect(err).ToNot(HaveOccurred())
 
-			content, err := ioutil.ReadAll(response)
+			content, err := io.ReadAll(response)
 			Expect(err).ToNot(HaveOccurred())
 			Expect(string(content)).To(Equal("some-asset"))
 
@@ -214,7 +214,7 @@ func testReleaseService(t *testing.T, context spec.G, it spec.S) {
 				})
 				Expect(err).ToNot(HaveOccurred())
 
-				content, err := ioutil.ReadAll(response)
+				content, err := io.ReadAll(response)
 				Expect(err).ToNot(HaveOccurred())
 				Expect(string(content)).To(Equal("some-asset"))
 
@@ -287,7 +287,7 @@ func testReleaseService(t *testing.T, context spec.G, it spec.S) {
 			response, err := service.GetReleaseTarball(fmt.Sprintf("%s/some-tarball-url", api.URL))
 			Expect(err).ToNot(HaveOccurred())
 
-			content, err := ioutil.ReadAll(response)
+			content, err := io.ReadAll(response)
 			Expect(err).ToNot(HaveOccurred())
 			Expect(string(content)).To(Equal("some-tarball"))
 
@@ -321,7 +321,7 @@ func testReleaseService(t *testing.T, context spec.G, it spec.S) {
 				response, err := service.GetReleaseTarball(fmt.Sprintf("%s/some-tarball-url", api.URL))
 				Expect(err).ToNot(HaveOccurred())
 
-				content, err := ioutil.ReadAll(response)
+				content, err := io.ReadAll(response)
 				Expect(err).ToNot(HaveOccurred())
 				Expect(string(content)).To(Equal("some-tarball"))
 

go.mod

@@ -1,11 +1,13 @@
 module github.com/ForestEckhardt/freezer
 
-go 1.13
+go 1.16
 
 require (
 	github.com/oklog/ulid v1.3.1
-	github.com/onsi/gomega v1.10.4
-	github.com/paketo-buildpacks/occam v0.0.22
-	github.com/paketo-buildpacks/packit v0.5.0
+	github.com/onsi/gomega v1.17.0
+	github.com/paketo-buildpacks/occam v0.2.0
+	github.com/paketo-buildpacks/packit v1.3.1
 	github.com/sclevine/spec v1.4.0
+	golang.org/x/net v0.0.0-20211201190559-0a0e4e1bb54c // indirect
+	golang.org/x/text v0.3.7 // indirect
 )