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author | David Robillard <d@drobilla.net> | 2018-09-22 10:24:26 +0200 |
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committer | David Robillard <d@drobilla.net> | 2018-09-22 10:24:26 +0200 |
commit | 50d838465b76d4e6d1edad42004f09940527f4dc (patch) | |
tree | 44c7ab0110b75c50db839b179d45d0ecb2be1913 /waflib/extras/build_file_tracker.py | |
parent | ed1e39547d584b21f86a244aeab32e077a21ffe8 (diff) | |
parent | db4fa08d4da3cc840e6f97e6869a877f2b4c9474 (diff) | |
download | lv2-50d838465b76d4e6d1edad42004f09940527f4dc.tar.xz |
Merge commit 'db4fa08d4da3cc840e6f97e6869a877f2b4c9474' as 'waflib'
Diffstat (limited to 'waflib/extras/build_file_tracker.py')
-rw-r--r-- | waflib/extras/build_file_tracker.py | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/waflib/extras/build_file_tracker.py b/waflib/extras/build_file_tracker.py new file mode 100644 index 0000000..c4f26fd --- /dev/null +++ b/waflib/extras/build_file_tracker.py @@ -0,0 +1,28 @@ +#! /usr/bin/env python +# encoding: utf-8 +# Thomas Nagy, 2015 + +""" +Force files to depend on the timestamps of those located in the build directory. You may +want to use this to force partial rebuilds, see playground/track_output_files/ for a working example. + +Note that there is a variety of ways to implement this, one may want use timestamps on source files too for example, +or one may want to hash the files in the source directory only under certain conditions (md5_tstamp tool) +or to hash the file in the build directory with its timestamp +""" + +import os +from waflib import Node, Utils + +def get_bld_sig(self): + if not self.is_bld() or self.ctx.bldnode is self.ctx.srcnode: + return Utils.h_file(self.abspath()) + + try: + # add the creation time to the signature + return self.sig + str(os.stat(self.abspath()).st_mtime) + except AttributeError: + return None + +Node.Node.get_bld_sig = get_bld_sig + |