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Issue 46003002: Add a target in GN that generates a last_change.h file for the SVN revision. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Created 7 years, 1 month ago
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1 # Copyright (c) 2013 The Chromium Authors. All rights reserved.
2 # Use of this source code is governed by a BSD-style license that can be
3 # found in the LICENSE file.
4
5 # This target generates a "last_change.h" header file in the generated files
6 # directory that contains a define of the last revision of the source tree
7 # of the form:
8 # #define LAST_CHANGE "123456"
9 #
10 # The version is a string rather than an integer for extra flexibility (for
11 # example, we may require git hashes in the future).
12 #
13 # All you nede to do is depend on this target, and then from your source code:
14 # #include "build/util/last_change.h"
15 custom("last_change") {
16 script = "//build/util/lastchange.py"
17
18 # This script must be run before targets depending on us.
19 hard_dep = true
20
21 # Rerun the script any time this file changes.
22 source_prereqs = [ "//build/util/LASTCHANGE" ]
23
24 output_header = "$target_gen_dir/last_change.h"
25 outputs = [ output_header ]
26
27 build_relative_src = rebase_path("//", ".", root_build_dir)
28 build_relative_outputs = rebase_path(output_header, ".", root_build_dir)
29
30 args = [
31 "--source-dir=$build_relative_src",
32 "--header=$build_relative_outputs",
33 "--define=LAST_CHANGE",
34 ]
35 }
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