From b6e9de2de9725e2f5a3170b8171ad1a1e95e8339 Mon Sep 17 00:00:00 2001 From: David Robillard Date: Tue, 11 Sep 2018 20:54:08 +0200 Subject: Squashed 'waflib/' content from commit 391d285 git-subtree-dir: waflib git-subtree-split: 391d2853c6c97efc90e466f187675e8155c866d6 --- extras/build_file_tracker.py | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 extras/build_file_tracker.py (limited to 'extras/build_file_tracker.py') diff --git a/extras/build_file_tracker.py b/extras/build_file_tracker.py new file mode 100644 index 0000000..c4f26fd --- /dev/null +++ b/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 + -- cgit v1.2.1