How to use different bindir depending on package format?

[thediveo]

I want to package a Wireshark external capture plugin binary using goreleaser/nfpm (this is a larger project about to go OpenSource on Github in the next weeks). Wireshark external capture plugins are ordinary stand-alone executables. However, they are not installed into /usr/bin or similar. Instead, they need to be installed in a distro-specific path because Wireshark will look only into a few specific "extcap" directories -- and the distro packagers usually have different opinions about where extcap binaries should go. 😞

For instance:

• Alpine: /usr/lib/wireshark/extcap/
• Debian and Ubuntu: /usr/lib/x86_64-linux-gnu/wireshark/extcap
• Fedora: usr/lib64/wireshark/extcap

Is this a situation that can and should be handled using the bindir property?

Bonus question: how to deal with the CPU arch-specific part? Is there a template variable for this?

Please forgive me if I missed things in the official documentation; I've finally found https://github.com/orgs/goreleaser/discussions/2879#discussioncomment-2111573 but am unsure how to make use of the meta stuff, so help is greatly appreciated!

[djgilcrease]

  contents:
  - src: './dist/foo_{{ .Os }}_{{ .Arch }}' # check your ./dist to see the paths et al
    dst: /usr/lib/wireshark/extcap/foo
    packager: apk
  - src: './dist/foo_{{ .Os }}_{{ .Arch }}' # check your ./dist to see the paths et al
    dst: /usr/lib/x86_64-linux-gnu/wireshark/extcap/foo
    packager: deb
  - src: './dist/foo_{{ .Os }}_{{ .Arch }}' # check your ./dist to see the paths et al
    dst: /usr/lib/wireshark/extcap/foo
    packager: rpm

[thediveo]

@djgilcrease Thank you very much! That set me on the right track. Below is what I've successfully in use now: this correctly handles the deb odd cpu architecture in the lib paths. Fortunately, my Wireshark extcap plugin only supports 64bit and only Intel/AMD and ARM. Maybe RISC-V in the future, we'll wait and see.

    formats:
      - apk
      - deb
      - rpm
    meta: true
    contents:
      - packager: apk
        src: 'dist/default_{{ .Os }}_{{ .Arch }}{{ with .Arm }}v{{ . }}{{ end }}{{ with .Amd64 }}_{{ . }}{{ end }}/fooextcap'
        dst: /usr/lib/wireshark/extcap/
        file_info:
          mode: 0755
      - packager: deb
        src: 'dist/default_{{ .Os }}_{{ .Arch }}{{ with .Arm }}v{{ . }}{{ end }}{{ with .Amd64 }}_{{ . }}{{ end }}/fooextcap'
        dst: /usr/lib/{{ if eq .Arch "amd64"}}x86_64{{ end }}{{ if eq .Arch "arm64"}}aarch64{{ end }}-linux-gnu/wireshark/extcap/
        file_info:
          mode: 0755
      - packager: rpm
        src: 'dist/default_{{ .Os }}_{{ .Arch }}{{ with .Arm }}v{{ . }}{{ end }}{{ with .Amd64 }}_{{ . }}{{ end }}/fooextcap'
        dst: /usr/lib64/wireshark/extcap/
        file_info:
          mode: 0755