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c7907a823c
It is faster to check the existance of a certain library by trying importing
that library, instead of invoking pip3 for a complete list of installed
libraries. Time of the check can be significantly reduced.
# time pip3 list
...
real 0m6.038s
user 0m0.652s
sys 0m0.036s
# time python3 -c "import kconfiglib"
real 0m0.037s
user 0m0.036s
sys 0m0.000s
Tracked-On: #1588
Signed-off-by: Junjie Mao <junjie.mao@intel.com>
Reviewed-by: Anthony Xu <anthony.xu@intel.com>
32 lines
1.1 KiB
Makefile
32 lines
1.1 KiB
Makefile
# usage: check_dep_exec <executable name> <variable>
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#
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# Create a target that checks the existence of the specified executable, and
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# append that target to the given variable.
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define check_dep_exec =
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$(2) += check_exec_$(1)
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check_exec_$(1):
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@if ! which $(1) > /dev/null; then \
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echo "******** Missing prerequisite tool ********"; \
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echo "Cannot find executable *$(1)*"; \
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echo "Please refer to the Getting Started Guide" \
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"for installation instructions"; \
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exit 1; \
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fi
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endef
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# usage: check_dep_py3lib <library name> <variable>
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#
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# Create a target that checks the existence of the specified python 3 library, and
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# append that target to the given variable.
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define check_dep_py3lib =
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$(2) += check_py3lib_$(1)
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check_py3lib_$(1):
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@if ! python3 -c "import $(1)" > /dev/null 2>&1; then \
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echo "******** Missing prerequisite tool ********"; \
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echo "The python3 library *$(1)* is not installed"; \
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echo "Please refer to the Getting Started Guide" \
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"for installation instructions"; \
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exit 1; \
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fi
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endef
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