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symlink.gni
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symlink.gni
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# Copyright 2015 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
# Creates a symlink.
# Args:
# source: Path to link to.
# output: Where to create the symlink.
template("symlink") {
action(target_name) {
forward_variables_from(invoker,
[
"data_deps",
"deps",
"testonly",
"visibility",
])
outputs = [ invoker.output ]
script = "//build/symlink.py"
args = [
"-f",
rebase_path(invoker.source, get_path_info(invoker.output, "dir")),
rebase_path(invoker.output, root_build_dir),
]
if (defined(invoker.touch) && invoker.touch) {
args += [ "--touch=" + rebase_path(invoker.source, root_build_dir) ]
}
}
}
# Creates a symlink from root_build_dir/target_name to |binary_label|. This rule
# is meant to be used within if (current_toolchain == default_toolchain) blocks
# and point to targets in the non-default toolchain.
# Note that for executables, using a copy (as opposed to a symlink) does not
# work when is_component_build=true, since dependent libraries are found via
# relative location.
#
# Args:
# binary_label: Target that builds the file to symlink to. e.g.:
# ":$target_name($host_toolchain)".
# binary_output_name: The output_name set by the binary_label target
# (if applicable).
# output_name: Where to create the symlink
# (default="$root_out_dir/$binary_output_name").
#
# Example:
# if (current_toolchain == host_toolchain) {
# executable("foo") { ... }
# } else if (current_toolchain == default_toolchain) {
# binary_symlink("foo") {
# binary_label = ":foo($host_toolchain)"
# }
# }
template("binary_symlink") {
symlink(target_name) {
forward_variables_from(invoker,
[
"output",
"testonly",
"visibility",
])
deps = [ invoker.binary_label ]
data_deps = [ invoker.binary_label ]
if (defined(invoker.data_deps)) {
data_deps += invoker.data_deps
}
_out_dir = get_label_info(invoker.binary_label, "root_out_dir")
if (defined(invoker.binary_output_name)) {
_name = invoker.binary_output_name
} else {
_name = get_label_info(invoker.binary_label, "name")
}
source = "$_out_dir/$_name"
_output_name = _name
if (defined(invoker.output_name)) {
_output_name = invoker.output_name
}
output = "$root_out_dir/$_output_name"
}
}