* David Claughton [2010-08-15 01:33 +0100]:
> Another use-case might be to remove "convenience copies" of system
> libraries. Might be useful (e.g. for security reasons) to be able to
> guarantee that this code isn't being accidentally used by a build (in
> a way that can be easily checked by a script).
Half a year ago wml and related packages had such bugs. To create
a list of unused files [1] I used a few lines of shell [2] ... pasting
the relevant part of it might be easier than explaining it:
# List a Debian source package's files that are not accessed during
# building the package. File systems must be mounted with atime or
# relatime.
...
# File systems mounted with relatime only update access time if it
# is earlier than or equal to the modify or create time, thus touch
# every regular file.
find . -type f -exec touch '{}' ';'
...
touch "$TMPFILE"
sleep 1
dpkg-buildpackage -D -tc -rfakeroot -us -uc -b
...
find . -type f ! -anewer "$TMPFILE" | sort | tee "$LOGFILE"
Axel found it useful at that time, but the use case seems to be quite
narrow.
Regards
Carsten
[1]
http://stateful.de/~carsten/tmp/100216NxxyjuNgtqk/wml-2.0.11ds1_unused-files_24941.log
[2] http://stateful.de/~carsten/tmp/100216NxxyjuNgtqk/orig-unused-files
(These URL's are temporary)
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