1 # Copyright 2014 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.
5 import("//build/config/chrome_build.gni")
7 # Runs the version processing script over the given template file to produce
8 # an output file. This is used for generating various forms of files that
9 # incorporate the product name and version.
11 # Unlike GYP, this will actually compile the resulting file, so you don't need
12 # to add it separately to the sources, just depend on the target.
14 # This template automatically includes VERSION, LASTCHANGE, and BRANDING. It
15 # automatically uses the template file .
16 # GYP parameterizes this template file but all current invocations use this
17 # same one. If in the future we need to set it, this should be added as an
20 # In GYP this is a rule that runs once per ".ver" file. In GN this just
21 # processes one file per invocation of the template so you may have to have
24 # You must specify either sources or a template_file, or both.
28 # List of file names to read. When converting a GYP target, this should
29 # list the 'source' (see above) as well as any extra_variable_files.
32 # File name of file to write. In GYP this is unspecified and it will
33 # make up a file name for you based on the input name, and tack on
34 # "_version.rc" to the end. But in GN you need to specify the full name.
36 # template_file (optional):
37 # Template file to use (not a list). Defaults to
38 # //chrome/app/chrome_version.rc.version if unspecified.
39 # TODO(brettw) remove this default behavior and specify it every time.
41 # extra_args (optional):
42 # Extra arguments to pass to version.py. Any "-f <filename>" args should
43 # use sources instead.
45 # process_only (optional, defaults to false)
46 # Set to generate only one action that processes the version file and
47 # doesn't attempt to link the result into a source set. This is for if
48 # you are processing the version as data only.
50 # visibility (optional)
53 # process_version("myversion") {
54 # sources = [ "myfile.h.in" ]
55 # output = "$target_gen_dir/myfile.h"
56 # extra_args = ["-e", "FOO=42"]
57 # extra_files = [ "foo/BRANDING" ]
59 template("process_version") {
60 assert(defined(invoker.sources) || defined(invoker.template_file),
61 "Either sources or template_file must be defined for $target_name")
62 assert(defined(invoker.output), "Output must be defined for $target_name")
64 process_only = defined(invoker.process_only) && invoker.process_only
67 action_name = target_name
69 action_name = target_name + "_action"
70 source_set_name = target_name
74 script = "//build/util/version.py"
76 lastchange_path = "//build/util/LASTCHANGE"
77 version_path = "//chrome/VERSION"
78 if (is_chrome_branded) {
79 branding_path = "//chrome/app/theme/google_chrome/BRANDING"
81 branding_path = "//chrome/app/theme/chromium/BRANDING"
83 if (defined(invoker.template_file)) {
84 template_path = invoker.template_file
86 template_path = "//chrome/app/chrome_version.rc.version"
102 if (defined(invoker.sources)) {
103 inputs += invoker.sources
104 foreach(i, invoker.sources) {
107 rebase_path(i, root_build_dir),
114 rebase_path(version_path, root_build_dir),
116 rebase_path(branding_path, root_build_dir),
118 rebase_path(lastchange_path, root_build_dir),
120 if (defined(invoker.extra_args)) {
121 args += invoker.extra_args
124 rebase_path(template_path, root_build_dir),
125 rebase_path(invoker.output, root_build_dir),
129 # When processing only, visibility gets applied to this target.
130 forward_variables_from(invoker, [ "visibility" ])
132 # When linking the result, only the source set can depend on the action.
133 visibility = [ ":$source_set_name" ]
138 source_set(source_set_name) {
139 forward_variables_from(invoker, [ "visibility" ])
140 sources = get_target_outputs(":$action_name")