Hi Johannes!
[Disclaimer: I'm not a devscripts maintainer.]
* Johannes Schauer <[email protected]>, 2015-09-03, 07:08:
the only situation in which build-rdeps works reliably is if
- the source package specifies "Build-Depends: foo"
- foo is a real package
- all source packages using foo directly depend on it
- foo is Multi-Arch:no
To be fair, the documentation doesn't promise that build-rdeps considers
indirect dependencies, or cross-arch dependencies, or virtual packages.
So it's not that build-rdeps works unreliably; it's just it doesn't
meet your expectations. That said, your expectations are of course
quite reasonable.
If dose-ceve is installed (and new enough) then build-rdeps will use it
to calculate the reverse build dependencies of a binary packages. If
dose-ceve is not installed (or too old) then it will warn that it will
use the old unreliable behavior instead.
I don't like the idea of that the command semantics completely changes
when you install or uninstall a package. I'd rather see build-rdeps fail
with no output if dose-ceve can't be used.
If dose-ceve is installed (and new enough) then the old behaviour can
be forced with the --without-ceve command line argument.
I don't like the option name. Most people don't know what ceve stands
for, and it's an implementation detail anyway. (What if edos^Wdose
maintainers decide to rename it to dose-evec? ;>)
Your patch doesn't seem to handle contrib and non-free correctly. I get:
Reverse Build-depends in contrib:
---------------------------------
No reverse build-depends found for dh-autoreconf.
even though of course there ARE packages in contrib build-depending on
dh-autoreconf.
+ $packages_path =~ s/_source_Sources$/_binary-${opt_buildarch}_Packages/;
The need for *_Packages should be documented in the REQUIREMENTS section
of the manpage.
On my machine, your implementation is ~100x slower than the current one.
:\
--
Jakub Wilk
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