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file: add SIZE option

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This commit adds the SIZE option to file(). It returns the file size of
the given path if it exists and produces an error if not.
This commit is contained in:
Wouter Klouwen
2018-11-20 10:17:33 +00:00
parent d851a8b457
commit 12b471e828
9 changed files with 69 additions and 0 deletions
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11
Help/command/file.rst
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@@ -25,6 +25,7 @@ Synopsis
file({`REMOVE`_ | `REMOVE_RECURSE`_ } [<files>...])
file(`MAKE_DIRECTORY`_ [<dir>...])
file({`COPY`_ | `INSTALL`_} <file>... DESTINATION <dir> [...])
file(`SIZE`_ <filename> <out-var>)
`Path Conversion`_
file(`RELATIVE_PATH`_ <out-var> <directory> <file>)
@@ -333,6 +334,16 @@ and ``NO_SOURCE_PERMISSIONS`` is default.
Installation scripts generated by the :command:`install` command
use this signature (with some undocumented options for internal use).
.. _SIZE:
.. code-block:: cmake
file(SIZE <filename> <variable>)
Determine the file size of the ``<filename>`` and put the result in
``<variable>`` variable. Requires that ``<filename>`` is a valid path
pointing to a file and is readable.
Path Conversion
^^^^^^^^^^^^^^^