Use multi-core optimized pgzip package in tarball (de)compression

go.mod

@@ -17,6 +17,7 @@ require (
 	github.com/golang/mock v1.6.0
 	github.com/google/uuid v1.6.0
 	github.com/kevinburke/ssh_config v1.2.0
+	github.com/klauspost/pgzip v1.2.6
 	github.com/masterzen/winrm v0.0.0-20240702205601-3fad6e106085
 	github.com/maxbrunsfeld/counterfeiter/v6 v6.9.0
 	github.com/mitchellh/mapstructure v1.5.0
@@ -27,6 +28,7 @@ require (
 	github.com/opencontainers/runtime-spec v1.2.0
 	github.com/pivotal/go-smtpd v0.0.0-20140108210614-0af6982457e5
 	github.com/pkg/errors v0.9.1
+	github.com/rcrowley/go-metrics v0.0.0-20201227073835-cf1acfcdf475
 	github.com/stretchr/testify v1.9.0
 	golang.org/x/crypto v0.29.0
 	golang.org/x/net v0.31.0
@@ -68,7 +70,6 @@ require (
 	github.com/jcmturner/rpc/v2 v2.0.3 // indirect
 	github.com/jpillora/backoff v1.0.0 // indirect
 	github.com/klauspost/compress v1.17.11 // indirect
-	github.com/klauspost/pgzip v1.2.6 // indirect
 	github.com/masterzen/simplexml v0.0.0-20190410153822-31eea3082786 // indirect
 	github.com/nats-io/nkeys v0.4.7 // indirect
 	github.com/nats-io/nuid v1.0.1 // indirect

go.sum

@@ -211,6 +211,8 @@ github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 h1:Jamvg5psRI
 github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
 github.com/prometheus/procfs v0.0.0-20180125133057-cb4147076ac7/go.mod h1:c3At6R/oaqEKCNdg8wHV1ftS6bRYblBhIjjI8uT2IGk=
+github.com/rcrowley/go-metrics v0.0.0-20201227073835-cf1acfcdf475 h1:N/ElC8H3+5XpJzTSTfLsJV/mx9Q9g7kxmchpfZyxgzM=
+github.com/rcrowley/go-metrics v0.0.0-20201227073835-cf1acfcdf475/go.mod h1:bCqnVzQkZxMG4s8nGwiZ5l3QUCyqpo9Y+/ZMZ9VjZe4=
 github.com/rogpeppe/go-internal v1.12.0 h1:exVL4IDcn6na9z1rAb56Vxr+CgyK3nn3O+epU5NdKM8=
 github.com/rogpeppe/go-internal v1.12.0/go.mod h1:E+RYuTGaKKdloAfM02xzb0FW3Paa99yedzYV+kq4uf4=
 github.com/russross/blackfriday/v2 v2.0.1/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=

releasetarball/compile.go

@@ -12,7 +12,7 @@ import (
 	"bufio"
 	"bytes"
 	"cmp"
-	"compress/gzip"
+	"github.com/klauspost/pgzip"
 	"errors"
 	"fmt"
 	"io"
@@ -220,7 +220,7 @@ func writeCompiledRelease(m manifest.Manifest, outputDirectory, stemcellFilename
 		return "", err
 	}
 	defer closeAndIgnoreErr(outputFile)
-	gw := gzip.NewWriter(outputFile)
+	gw := pgzip.NewWriter(outputFile)
 	defer closeAndIgnoreErr(gw)
 	tw := tar.NewWriter(gw)
 	defer closeAndIgnoreErr(tw)
@@ -320,7 +320,7 @@ func walkTarballFiles(releaseFilePath string, file tarballWalkFunc) error {
 		return nil
 	}
 	defer closeAndIgnoreErr(f)
-	gr, err := gzip.NewReader(bufio.NewReader(f))
+	gr, err := pgzip.NewReader(bufio.NewReader(f))
 	if err != nil {
 		return err
 	}