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author | David Robillard <d@drobilla.net> | 2018-09-15 14:51:02 +0200 |
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committer | David Robillard <d@drobilla.net> | 2018-09-15 14:51:02 +0200 |
commit | 4a3f0b45918fb172d33b6b5f6a736087db0754cc (patch) | |
tree | 818f80aee210eac7ff53cf45de53df3991430d3e /waflib/extras/build_file_tracker.py | |
parent | 1bd8d938429c42b54286068fe3a5b22743fbc794 (diff) | |
parent | eede9648d50c3750f6f8d1319a79dd76d7f10b55 (diff) | |
download | ingen-4a3f0b45918fb172d33b6b5f6a736087db0754cc.tar.gz ingen-4a3f0b45918fb172d33b6b5f6a736087db0754cc.tar.bz2 ingen-4a3f0b45918fb172d33b6b5f6a736087db0754cc.zip |
Merge commit 'eede9648d50c3750f6f8d1319a79dd76d7f10b55' 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 00000000..c4f26fd0 --- /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 + |