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To make sure that our manpages are rebuilt when any of the included
source files change and only the affected manpages are rebuilt,
'build-docdep.perl' scans our documentation source files for include
directives, and outputs 'make' dependencies to be included by
'Documentation/Makefile'. This script relies on Perl's hash data
structures, and generates its output while iterating over them, and
since hashes in Perl are very much unordered, the output varies
greatly from run to run, both the order of targets and the order of
dependencies of each target.
This lack of ordering doesn't matter for 'make', because it cares
neither about the order of targets in a Makefile nor about the order
of a target's dependencies. However, it does matter to developers
looking into build issues potentially involving these generated
dependencies, as it's rather hard to tell whether there are any
relevant (i.e. not order-only) changes among the dependencies compared
to the previous run.
So let's make 'build-docdep.perl's output stable and ordered by
sorting the keys of the hashes before iterating over them.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Adding dependencies on included files to the generated man pages is
wrong - includes are processed by asciidoc, therefore the intermediate
Docbook XML files really depend on included files. Because of these
wrong dependencies the man pages were not rebuilt properly if the
intermediate XML files were left in the tree.
Signed-off-by: Sergey Vlasov <vsu@altlinux.ru>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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As Pasky pointed out, building in templates directory showed
list of built template files which was unneeded. This commit
also fixes another build annoyance I recently left in by
accident.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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The previous rule misses the case where git.txt or tutorial.txt
includes new files.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Documentation/Makefile spent a lot of time to generate include
dependencies, which was quite noticeable especially during "make clean".
Rewrite it to generate just a single dependency file.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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