如何解决CMakeLists:用新行创建字符串
我在尝试在 CMakeLists.txt
中打印带有新行的字符串时遇到问题。
预期输出:
{file}:{line}:{column}
Message: {message}
Check: CWE-{cwe}
Type: {severity} -> {id}
Line: {line}:{column}
Stack: {callstack}
{code}
如果我尝试放置换行符 (\n
),则会返回错误:
set(CPPCHECK_TEMPLATE "")
string(APPEND CPPCHECK_TEMPLATE "{file}:{line}:{column}\n")
string(APPEND CPPCHECK_TEMPLATE " Message: {message}\n")
string(APPEND CPPCHECK_TEMPLATE " Check: CWE-{cwe}\n")
string(APPEND CPPCHECK_TEMPLATE " Type: {severity} -> {id}\n")
string(APPEND CPPCHECK_TEMPLATE " Line: {line}:{column}\n")
string(APPEND CPPCHECK_TEMPLATE " Stack: {callstack}\n")
string(APPEND CPPCHECK_TEMPLATE "{code}\n")
实施:
add_custom_command(
COMMENT "Scanning: CPP Check\n"
TARGET ${PROJECT_NAME}
PRE_BUILD
COMMAND cppcheck
"--template=${CPPCHECK_TEMPLATE}"
VERBATIM
)
错误:
/home/wolf/.local/share/JetBrains/ToolBox/apps/CLion/ch-0/211.7142.21/bin/cmake/linux/bin/cmake --build /home/wolf/workspace/projects/bose-connect-app-linux/src/cmake-build-debug --target clean -- -j 6
CMakeFiles/bose-connect-app-linux.dir/build.make:157: *** target pattern contains no '%'. Stop.
make[1]: *** [CMakeFiles/Makefile2:113: CMakeFiles/bose-connect-app-linux.dir/clean] Error 2
make: *** [Makefile:109: clean] Error 2
解决方法
我尝试了很多可能性,但没有得到任何解决方案。我发现如果反斜杠 \
被转义,那么它会识别新行 (\\n
):
set(CPPCHECK_TEMPLATE "")
string(APPEND CPPCHECK_TEMPLATE "{file}:{line}:{column}\\n")
string(APPEND CPPCHECK_TEMPLATE " Message: {message}\\n")
string(APPEND CPPCHECK_TEMPLATE " Check: CWE-{cwe}\\n")
string(APPEND CPPCHECK_TEMPLATE " Type: {severity} -> {id}\\n")
string(APPEND CPPCHECK_TEMPLATE " Line: {line}:{column}\\n")
string(APPEND CPPCHECK_TEMPLATE " Stack: {callstack}\\n")
string(APPEND CPPCHECK_TEMPLATE "{code}\\n")
此外,它适用于 CMakeLists.txt
中的任何字符串,例如注释 (COMMENT "Scanning: CPP Check\n\n"
):
add_custom_command(
COMMENT "Scanning: CPP Check\n\n"
TARGET ${PROJECT_NAME}
PRE_BUILD
COMMAND cppcheck
"--language=c"
"--std=c11"
"--platform=unix64"
"--template=${CPPCHECK_TEMPLATE}"
"--project=${CMAKE_BINARY_DIR}/compile_commands.json"
"--error-exitcode=1"
VERBATIM)
注释中没有新行的输出:
Scanning: CPP Check
Checking /home/wolf/workspace/projects/bose-connect-app-linux/src/main.c ...
注释中带有新行的输出:
Scanning: CPP Check
Checking /home/wolf/workspace/projects/bose-connect-app-linux/src/main.c ...
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