[Rpm-maint] [rpm-software-management/rpm] Add %collect macro for easy file manifest creation (PR #2035)

[Panu Matilainen]

@pmatilai commented on this pull request.



> @@ -1104,6 +1104,24 @@ package or when debugging this package.\
 # arch macro for 64-bit LOONGARCH processors
 %loongarch64	loongarch64
 
+#------------------------------------------------------------------------
+# Use in %install to generate fully-quoted file lists. For example,
+#
+# %install
+# ...
+# %collect [-r <root>] %{name}
+# ...
+# %files -f %{name}.list
+#
+%collect(r:)\
+rm -f %{1}.list \
+find %{buildroot}%{_prefix}/%{-r*} -type f -print | \\\
+perl -pe 's!%{buildroot}!!g;'			    \\\

Ugh, let's not drag Perl into any stock rpm macros, we don't want any new dependencies on the gorilla which we're trying to walk out the door.

Also I don't recall ever coming across a case that would've needed this thing from the dusty 2001 doc, with the weird `%{_prefix}` and all. Which is not to say such cases don't exist, but whether it's common enough to warrant a macro I dunno.

An alternative, probably more robust way to achieve this would be adding a new "raw manifest" flag to `%files` which does not expand lines at all. 

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