40 lines
1.3 KiB
CMake
40 lines
1.3 KiB
CMake
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# Find Cargo, possibly in ~/.cargo. Make sure to check in any `bin` subdirectories
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# on the program search path
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# TODO: Remove the Unix-ism ($ENV{HOME}) and replace it with something platform-agnostic.
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find_program(CARGO_EXECUTABLE cargo PATHS "$ENV{HOME}/.cargo" PATH_SUFFIXES bin)
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set(CARGO_VERSION "")
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set(CARGO_CHANNEL "stable")
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# If we found it, see if we can get its version.
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if(CARGO_EXECUTABLE)
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execute_process(COMMAND ${CARGO_EXECUTABLE} -V OUTPUT_VARIABLE CARGO_VERSION_OUTPUT OUTPUT_STRIP_TRAILING_WHITESPACE)
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if(CARGO_VERSION_OUTPUT MATCHES "cargo ([0-9]+\\.[0-9]+\\.[0-9]+).*")
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set(CARGO_VERSION ${CMAKE_MATCH_1})
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endif()
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execute_process(COMMAND ${CARGO_EXECUTABLE} -V OUTPUT_VARIABLE CARGO_CHANNEL_OUTPUT OUTPUT_STRIP_TRAILING_WHITESPACE)
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if(CARGO_CHANNEL_OUTPUT MATCHES "cargo [0-9]+\\.[0-9]+\\.[0-9]+-([a-zA-Z]*).*")
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set(CARGO_CHANNEL ${CMAKE_MATCH_1})
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endif()
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endif()
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# Hides the CARGO_EXECUTABLE variable unless advanced variables are requested
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mark_as_advanced(CARGO_EXECUTABLE)
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# Require that we find both the executable and the version. Otherwise error out.
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(
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Cargo
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REQUIRED_VARS
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CARGO_VERSION
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CARGO_CHANNEL
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CARGO_EXECUTABLE
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VERSION_VAR
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CARGO_VERSION
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)
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