snapcraft promote shows wrong version number

[Heinrich Schuchardt]

I have uploaded version 4.10 of the sispmctl snap to the beta channel:

$ snap info sispmctl
...
snap-id: vldmxZW5Qjy6JEkA9ooEHXYIUO5gPJRJ
tracking: latest/beta
refresh-date: today at 11:26 CEST
channels:
  latest/stable: 4.9 2022-04-13 (3) 118kB -
  latest/candidate: ↑
  latest/beta: 4.10 2023-06-24 (9) 102kB -
  latest/edge: 4.9 2022-04-05 (3) 118kB -
installed: 4.10 (9) 102kB -

When trying to promote to the edge channel the version number is displayed as 4.1.

$ snapcraft promote --from-channel beta --to-channel edge sispmctl
snapcraft promote does not have a stable CLI interface. Use with caution in scripts.
Build set information for 'beta'
Arch Revision Version
amd64 9 4.1
arm64 8 4.1
armhf 7 4.1
riscv64 10 4.1
Do you want to promote the current set to the 'edge' channel? [y/N]:

Please, do not truncate version numbers.

[Heinrich Schuchardt (xypron)]

$ snap info snapcraft
installed: 7.4.3 (9362) 60MB classic

[Callahan Kovacs (mr-cal)]

If you have `version: 4.10` in your snapcraft.yaml, it is treated as a number by yaml and will be simplified to `4.1`.

If you have `version: "4.10"` (note the quotes), it will be treated as a string and not be modified.

If that is not your problem, then can you share your snapcraft.yaml?

[Heinrich Schuchardt (xypron)]

Dear Callahan,

thanks for looking into my problem.

The problem is specific to the promote subcommand. snap info sispmctl displays the version number as 4.10.

https://snapcraft.io/docs/snapcraft-yaml-reference defines that the field version is always a string and never a number.

My snapcraft.yaml has:
version: '4.10'
This is exactly the format that is suggested by the snapcraft.yaml reference for a version number.

The source code of the sispmctl snap is available at
https://sourceforge.net/p/sispmctl/git/

When I load my snapcraft.yaml using Pythons yaml.safe_load() I get a property version which is a string '4.10' and not a number.

Best regards

Heinrich

[Heinrich Schuchardt (xypron)]

The version number displayed by the promote sub-command is not taken from the snapcraft.yaml but from the snapstore using snap_status.get_channel_set(parsed_from_channel) and that store uses the value 4.10 and not 4.1.