30 lines
1.0 KiB
Makefile
30 lines
1.0 KiB
Makefile
# Copyright (c) Facebook, Inc. and its affiliates.
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#
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# This source code is licensed under the MIT license found in the
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# LICENSE file in the root directory of this source tree.
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##
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# Returns the absolute path to the specified npm package, searching from the
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# given base directory. This function uses Node's module resolution algorithm
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# searching "node_modules" in the base directory and its ancestors. If no
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# matching package is found, this function returns an empty string.
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#
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# The first argument to this function is the base directory from which to begin
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# searching. The second argument is the name of the npm package.
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#
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# Ex: $(call find-node-module,$(LOCAL_PATH),hermes-engine)
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###
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define find-node-module
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$(strip \
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$(eval _base := $(strip $(1))) \
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$(eval _package := $(strip $(2))) \
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$(eval _candidate := $(abspath $(_base)/node_modules/$(_package))) \
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$(if $(realpath $(_candidate)), \
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$(_candidate), \
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$(if $(_base), \
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$(call find-node-module,$(patsubst %/,%,$(dir $(_base))),$(_package)) \
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) \
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) \
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)
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endef
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