Bug#808032: python-genpy: please make the output reproducible

[Andrei POPESCU]

Control: reassign -1 src:ros-genpy 0.5.7-3

On Ma, 15 dec 15, 12:20:55, Chris Lamb wrote:
> Source: python-genpy
> Version: 0.5.7-3
> Severity: wishlist
> Tags: patch
> User: reproducible-builds at lists.alioth.debian.org
> Usertags: toolchain randomness
> X-Debbugs-Cc: reproducible-builds at lists.alioth.debian.org
> 
> Hi,
> 
> Whilst working on the "reproducible builds" effort [0], we noticed that python-genpy generates output with a non-determistic order.
> 
> The attached patch removes this randomness from the build system. Once applied, packages using python-genpy can be built reproducibly using our reproducible toolchain.
> 
>  [0] https://wiki.debian.org/ReproducibleBuilds
> 
> 
> Regards,
> 
> -- 
>       ,''`.
>      : :'  :     Chris Lamb
>      `. `'`      lamby at debian.org / chris-lamb.co.uk
>        `-

> diff --git a/src/genpy/generate_initpy.py b/src/genpy/generate_initpy.py
> index 2774b18..a6bfecf 100644
> --- a/src/genpy/generate_initpy.py
> +++ b/src/genpy/generate_initpy.py
> @@ -48,7 +48,7 @@ def write_modules(outdir):
>          return 0
>      types_in_dir = set([f[1:-3] for f in os.listdir(outdir)
>                       if f.endswith('.py') and f != '__init__.py'])
> -    generated_modules = [_module_name(f) for f in types_in_dir]
> +    generated_modules = [_module_name(f) for f in sorted(types_in_dir)]
>      write_module(outdir, generated_modules)
>      return 0
>  


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