How to copy just one file using the dump plugin?

snapcraft
1

Previously I did this using the copy plugin, but that is deprecated:

  copy:
    plugin: copy
    files:
      data-dir-wrapper: bin/data-dir-wrapper

I tried to do the same thing with the dump plugin:

  wrapper:
    plugin: dump
    source: .
    organize:
      data-dir-wrapper: bin/data-dir-wrapper

However this results in every file from source being copied into the snap, which is not what I want.

The documentation for dump says:

In the cases where dumping the content needs some mangling or organizing one would take advantage of the core functionalities available to plugins such as: filesets, stage, snap and organize.

I tried adding a stage: section:

  wrapper:
    plugin: dump
    source: .
    stage:
      - data-dir-wrapper
    organize:
      data-dir-wrapper: bin/data-dir-wrapper

But then snapcraft says:

[Errno 2] No such file or directory: ‘/home/al/Source/sigrok-snap-test/parts/wrapper/install/data-dir-wrapper’

1 Like
2

Hello!

Your stage runs after organize, so it should be:

stage:
  - bin/data-dir-wrapper

This was reported in this bug #1638622

1 Like
3

Got it. It also needs to be prime: not stage: otherwise it doesn’t end up in the snap.

4

If you have stage without prime, it should be the same as if you have stage and prime with the same values.

Maybe there’s a bug in there…

5

My bad it does actually work with stage:

6

:relieved: phew Thanks for checking that.

7

@elopio on a similar kind of issue, I am trying to stage an output of build

where actually should I use filesets?

plugin: nodejs
    node-engine: 6.11.2
    source: ./src/
    build-packages:[...]      
    build: |
        sh run.sh
   filesets: 
	   app: [archive/*]
    stage:
        - $app

when build runs, it creates a directory build/archive

but the above yaml , does not put archive/* into stage

1 Like