How to Access the Source File Name In Cmake?

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In CMake, you can access the source file name using the CMake variable ${CMAKE_CURRENT_SOURCE_DIR}. This variable stores the complete path to the directory containing the currently processed source file. You can use this variable to reference the source file name within your CMakeLists.txt file or any CMake script. This can be useful when you need to perform operations or tasks based on the source file being processed by CMake. Additionally, you can also use other CMake variables and commands to manipulate or extract specific information from the source file name as needed.

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How do I get the source file name in CMake without errors?

To get the source file name in CMake without errors, you can use the following command:

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get_filename_component(SOURCE_NAME ${CMAKE_CURRENT_SOURCE_DIR}/${CMAKE_CURRENT_LIST_FILE} NAME)
message("Source file name: ${SOURCE_NAME}")


This command uses the get_filename_component function to extract the name of the source file from the full path. The ${CMAKE_CURRENT_SOURCE_DIR} variable contains the directory of the current source file, and ${CMAKE_CURRENT_LIST_FILE} contains the full path of the current source file being processed. By concatenating these two variables and passing it to get_filename_component, you can extract the name of the source file and store it in the SOURCE_NAME variable. Finally, the message command is used to print the source file name to the console.


This should allow you to access the source file name in CMake without encountering any errors.


What is the correct format for retrieving the source file name in CMake?

To retrieve the source file name in CMake, you can use the following command:

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get_filename_component(SOURCE_FILE_NAME ${CMAKE_CURRENT_LIST_FILE} NAME)


This command will store the name of the current source file in the variable SOURCE_FILE_NAME.


How to resolve any issues when trying to access the source file name in CMake?

To resolve any issues when trying to access the source file name in CMake, you can follow these steps:

  1. Make sure that the file path is correct: Double-check the file path and ensure that it is correct in the CMakeLists.txt file.
  2. Use the correct CMake variable: To access the source file name in CMake, you can use the ${CMAKE_CURRENT_LIST_FILE} variable. This variable contains the full path to the CMakeLists.txt file currently being processed.
  3. Print the variable for debugging: If you are still having issues, you can use the message() command in CMake to print the value of the ${CMAKE_CURRENT_LIST_FILE} variable. This can help you verify that you are accessing the correct file name.
  4. Check for errors in the CMakeLists.txt file: Make sure that there are no syntax errors or typos in the CMakeLists.txt file that could be causing issues with accessing the source file name.
  5. Consult the CMake documentation: If you are still unable to resolve the issue, consult the official CMake documentation or seek help from online forums or communities for assistance.


By following these steps, you should be able to successfully access the source file name in CMake without any issues.


How do I find the name of the current source file in CMake?

You can use the CMAKE_CURRENT_SOURCE_FILE variable to find the name of the current source file in CMake. This variable contains the full path to the current CMake source file being processed. You can access this variable in your CMake scripts to get the name of the current source file. Here's an example of how you can do this:

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message("Current source file: ${CMAKE_CURRENT_SOURCE_FILE}")


This will output the name of the current source file being processed by CMake.


How to extract the source file name in CMake?

To extract the source file name in CMake, you can use the get_filename_component command. Here's an example of how you can extract the source file name from a full path:

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# Get the full path of the source file
set(SOURCE_FILE /path/to/source/file.cpp)

# Extract the source file name
get_filename_component(SOURCE_FILE_NAME ${SOURCE_FILE} NAME)

# Print the extracted source file name
message("Source file name: ${SOURCE_FILE_NAME}")


In this example, the get_filename_component command extracts the base name of the file from the given full path and stores it in the variable SOURCE_FILE_NAME. You can then use this variable in your CMake script as needed.


What is the significance of knowing the source file name in CMake?

Knowing the source file name in CMake is significant because CMake uses these file names to determine which files need to be compiled and linked together to create the final executable or library. By specifying the source file names in the CMakeLists.txt file, developers can define the structure of the project and easily manage the dependencies between different source files. This allows for more efficient building and compilation of the project, as CMake can automatically generate the necessary build rules based on the specified source files. Additionally, knowing the source file names is important for debugging and troubleshooting issues that may arise during the build process.

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