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CMake module for getting file information such as size and modification date.

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FileInformation

FileInformation is a CMake module that provides functionality for getting file information such as file size and file modification date and time.

Features

  • Works with Windows, Linux and Mac OS X.
  • Uses native scripting commands to compute provided file information.

Requirements

  • CMake 2.8 or newer. The executable cmake should be on the system path.

Installation

Copy the files in the directory Module to the module directory of your CMake project. Be sure to add the module directory to the CMake module search path, e.g.:

set (CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/Module" ${CMAKE_MODULE_PATH})

Usage

If you are new to CMake, check out the CMake tutorial first.

In your CMakeLists.txt file include the module FileInformation:

include (FileInformation)

The following commands are available:

get_timestamp_component(variable timestamp component)

get_timestamp_component gets a specific component of an ISO 8601 formatted string. Valid components are DATE, TIME, YEAR, MONTH, DAY, HOUR, MINUTE and SECOND.

current_timestamp (variable [ component ])

current_timestamp will store a timestamp representing the current date and time into the variable as an ISO 8601 formatted string (e.g., "2011-11-21T21:15:44").

Furthermore, the module overrides the built-in CMake command file to provide two additional sub-commands SIZE and TIMESTAMP on all platforms:

file (SIZE filename variable)

SIZE will store the size of the file in bytes into the variable.

file (TIMESTAMP filename variable)

TIMESTAMP will store the modification date and time of the file into the variable as an ISO 8601 formatted string (e.g., "2011-07-02T13:00:22").

Under Linux and Mac OS X the following sub-commands are available, too:

file (USER_NAME filename variable)

USER_NAME will store the user name of the file owner into the variable.

file (GROUP_NAME filename variable)

GROUP_NAME will store the group name of the file owner into the variable.

file (PERMISSIONS filename variable)

PERMISSIONS will store the permissions of the file into the variable as a list. Valid permissions are OWNER_READ, OWNER_WRITE, OWNER_EXECUTE, GROUP_READ, GROUP_WRITE, GROUP_EXECUTE, WORLD_READ, WORLD_WRITE, WORLD_EXECUTE, SETUID, and SETGID.

See the file CMakeLists.txt file for usage examples.

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CMake module for getting file information such as size and modification date.

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