'go get' Installation Process Fails

[slcardinal]

When trying to install the packager using the instruction provided below, the process fails when trying to install the cenkalti/backoff go module. From what I can determine, the cenkalti/backoff module now requires Go 1.18, which has depreciated the use of 'go get' in favor of using 'go install'. I am not super familar with Go, so I am looking for some assistance in make this process work again, as we us this module to build some custom buildpacks for Cloud Foundry.

go get github.com/cloudfoundry/libbuildpack cd ~/go/src/github.com/cloudfoundry/libbuildpack && GO111MODULE=on go mod download cd packager/buildpack-packager && GO111MODULE=on go install

`# go get github.com/cloudfoundry/libbuildpack
go: downloading github.com/cloudfoundry/libbuildpack v0.0.0-20231211162543-86d10e150195
go: downloading github.com/blang/semver v3.5.1+incompatible
go: downloading gopkg.in/yaml.v2 v2.4.0
go: downloading github.com/cenkalti/backoff/v4 v4.2.0
go: downloading github.com/Masterminds/semver v1.5.0

github.com/cenkalti/backoff/v4

pkg/mod/github.com/cenkalti/backoff/v4@v4.2.0/retry.go:10:26: syntax error: unexpected any, expecting ]
pkg/mod/github.com/cenkalti/backoff/v4@v4.2.0/retry.go:10:38: method has no receiver
pkg/mod/github.com/cenkalti/backoff/v4@v4.2.0/retry.go:16:53: syntax error: unexpected [ after top level declaration
pkg/mod/github.com/cenkalti/backoff/v4@v4.2.0/retry.go:17:16: method has no receiver
pkg/mod/github.com/cenkalti/backoff/v4@v4.2.0/retry.go:17:16: syntax error: unexpected (, expecting name or (
pkg/mod/github.com/cenkalti/backoff/v4@v4.2.0/retry.go:42:19: syntax error: unexpected [, expecting (
pkg/mod/github.com/cenkalti/backoff/v4@v4.2.0/retry.go:53:25: syntax error: unexpected [, expecting (
pkg/mod/github.com/cenkalti/backoff/v4@v4.2.0/retry.go:66:33: syntax error: unexpected [, expecting (
pkg/mod/github.com/cenkalti/backoff/v4@v4.2.0/retry.go:70:19: syntax error: unexpected [, expecting (
pkg/mod/github.com/cenkalti/backoff/v4@v4.2.0/retry.go:76:2: syntax error: non-declaration statement outside function body
pkg/mod/github.com/cenkalti/backoff/v4@v4.2.0/retry.go:76:2: too many errors
note: module requires Go 1.18`

[slcardinal]

Instruction for using the Buildpackager Packager are also listed in the Cloud Foundry Docs here: https://docs.cloudfoundry.org/buildpacks/custom.html

[romain-dartigues]

Instructions did not work (for me); I had to:

git clone https://github.com/cloudfoundry/libbuildpack.git
cd libbuildpack/packager/buildpack-packager/
GO111MODULE=on go mod download
GOBIN=/tmp/ GO111MODULE=on go install

After what I get a working buildpack-packager, but without some command listed in the documentation:

$ buildpack-packager init --name sidecars-buildpack --path=sidecars-buildpack
Usage: buildpack-packager <flags> <subcommand> <subcommand args>

Subcommands:
        commands         list all command names
        flags            describe all known top-level flags
        help             describe subcommands and their syntax

Subcommands for Custom:
        build            Create a buildpack zipfile from the current directory
        summary          Print out list of dependencies of this buildpack

$ echo $?
2

[slcardinal]

Just checking to see if someone has looked at this issue. It has broken my teams ability to build and deploy a couple of custom buildpack that we have used for years. If this is not going to be fixed, is there a work around that I can use to continue to build and deploy custom buildpacks?