src/eric7/Documentation/Source/eric7.SystemUtilities.FileSystemUtilities.html

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<h1>eric7.SystemUtilities.FileSystemUtilities</h1>

<p>
Module implementing file system related utility functions.
</p>
<h3>Global Attributes</h3>

<table>
<tr><td>None</td></tr>
</table>
<h3>Classes</h3>

<table>
<tr><td>None</td></tr>
</table>
<h3>Functions</h3>

<table>

<tr>
<td><a href="#absolutePath">absolutePath</a></td>
<td>Public method to convert a path relative to a start path to an absolute path.</td>
</tr>
<tr>
<td><a href="#absoluteUniversalPath">absoluteUniversalPath</a></td>
<td>Public method to convert a path relative to a start path with universal separators to an absolute path.</td>
</tr>
<tr>
<td><a href="#compactPath">compactPath</a></td>
<td>Function to return a compacted path fitting inside the given width.</td>
</tr>
<tr>
<td><a href="#direntries">direntries</a></td>
<td>Function returning a list of all files and directories.</td>
</tr>
<tr>
<td><a href="#findVolume">findVolume</a></td>
<td>Function to find the directory belonging to a given volume name.</td>
</tr>
<tr>
<td><a href="#fromNativeSeparators">fromNativeSeparators</a></td>
<td>Function returning a path, that is using "/" separator characters.</td>
</tr>
<tr>
<td><a href="#getDirs">getDirs</a></td>
<td>Function returning a list of all directories below path.</td>
</tr>
<tr>
<td><a href="#getExecutablePath">getExecutablePath</a></td>
<td>Function to build the full path of an executable file from the environment.</td>
</tr>
<tr>
<td><a href="#getExecutablePaths">getExecutablePaths</a></td>
<td>Function to build all full path of an executable file from the environment.</td>
</tr>
<tr>
<td><a href="#getVolumeName">getVolumeName</a></td>
<td>Local function to determine the volume of a disk or device.</td>
</tr>
<tr>
<td><a href="#getWindowsExecutablePath">getWindowsExecutablePath</a></td>
<td>Function to build the full path of an executable file from the environment on Windows platforms.</td>
</tr>
<tr>
<td><a href="#isDrive">isDrive</a></td>
<td>Function to check, if a path is a Windows drive.</td>
</tr>
<tr>
<td><a href="#isExecutable">isExecutable</a></td>
<td>Function to check, if a file is executable.</td>
</tr>
<tr>
<td><a href="#isinpath">isinpath</a></td>
<td>Function to check for an executable file.</td>
</tr>
<tr>
<td><a href="#joinext">joinext</a></td>
<td>Function to join a file extension to a path.</td>
</tr>
<tr>
<td><a href="#normabsjoinpath">normabsjoinpath</a></td>
<td>Function returning a normalized, absolute path of the joined parts passed into it.</td>
</tr>
<tr>
<td><a href="#normcaseabspath">normcaseabspath</a></td>
<td>Function returning an absolute path, that is normalized with respect to its case and references.</td>
</tr>
<tr>
<td><a href="#normcasepath">normcasepath</a></td>
<td>Function returning a path, that is normalized with respect to its case and references.</td>
</tr>
<tr>
<td><a href="#normjoinpath">normjoinpath</a></td>
<td>Function returning a normalized path of the joined parts passed into it.</td>
</tr>
<tr>
<td><a href="#relativeUniversalPath">relativeUniversalPath</a></td>
<td>Function to convert a file path to a path relative to a start path with universal separators.</td>
</tr>
<tr>
<td><a href="#samefilepath">samefilepath</a></td>
<td>Function to compare two paths.</td>
</tr>
<tr>
<td><a href="#samepath">samepath</a></td>
<td>Function to compare two paths.</td>
</tr>
<tr>
<td><a href="#splitPath">splitPath</a></td>
<td>Function to split a pathname into a directory part and a file part.</td>
</tr>
<tr>
<td><a href="#startswithPath">startswithPath</a></td>
<td>Function to check, if a path starts with a given start path.</td>
</tr>
<tr>
<td><a href="#toNativeSeparators">toNativeSeparators</a></td>
<td>Function returning a path, that is using native separator characters.</td>
</tr>
</table>
<hr />
<hr />
<a NAME="absolutePath" ID="absolutePath"></a>
<h2>absolutePath</h2>
<b>absolutePath</b>(<i>path, start</i>)

<p>
    Public method to convert a path relative to a start path to an
    absolute path.
</p>
<dl>

<dt><i>path</i></dt>
<dd>
file or directory name to convert (string)
</dd>
<dt><i>start</i></dt>
<dd>
start path (string)
</dd>
</dl>
<dl>
<dt>Return:</dt>
<dd>
absolute path (string)
</dd>
</dl>
<div align="right"><a href="#top">Up</a></div>
<hr />
<hr />
<a NAME="absoluteUniversalPath" ID="absoluteUniversalPath"></a>
<h2>absoluteUniversalPath</h2>
<b>absoluteUniversalPath</b>(<i>path, start</i>)

<p>
    Public method to convert a path relative to a start path with
    universal separators to an absolute path.
</p>
<dl>

<dt><i>path</i></dt>
<dd>
file or directory name to convert (string)
</dd>
<dt><i>start</i></dt>
<dd>
start path (string)
</dd>
</dl>
<dl>
<dt>Return:</dt>
<dd>
absolute path with native separators (string)
</dd>
</dl>
<div align="right"><a href="#top">Up</a></div>
<hr />
<hr />
<a NAME="compactPath" ID="compactPath"></a>
<h2>compactPath</h2>
<b>compactPath</b>(<i>path, width, measure=len</i>)

<p>
    Function to return a compacted path fitting inside the given width.
</p>
<dl>

<dt><i>path</i></dt>
<dd>
path to be compacted (string)
</dd>
<dt><i>width</i></dt>
<dd>
width for the compacted path (integer)
</dd>
<dt><i>measure</i></dt>
<dd>
reference to a function used to measure the length of the
        string
</dd>
</dl>
<dl>
<dt>Return:</dt>
<dd>
compacted path (string)
</dd>
</dl>
<div align="right"><a href="#top">Up</a></div>
<hr />
<hr />
<a NAME="direntries" ID="direntries"></a>
<h2>direntries</h2>
<b>direntries</b>(<i>path, filesonly=False, pattern=None, followsymlinks=True, checkStop=None</i>)

<p>
    Function returning a list of all files and directories.
</p>
<dl>

<dt><i>path</i> (str)</dt>
<dd>
root of the tree to check
</dd>
<dt><i>filesonly</i> (bool)</dt>
<dd>
flag indicating that only files are wanted
</dd>
<dt><i>pattern</i> (str or list of str)</dt>
<dd>
a filename pattern or list of filename patterns to check
        against
</dd>
<dt><i>followsymlinks</i> (bool)</dt>
<dd>
flag indicating whether symbolic links
        should be followed
</dd>
<dt><i>checkStop</i> (function)</dt>
<dd>
function to be called to check for a stop
</dd>
</dl>
<dl>
<dt>Return:</dt>
<dd>
list of all files and directories in the tree rooted
        at path. The names are expanded to start with path.
</dd>
</dl>
<dl>
<dt>Return Type:</dt>
<dd>
list of strs
</dd>
</dl>
<div align="right"><a href="#top">Up</a></div>
<hr />
<hr />
<a NAME="findVolume" ID="findVolume"></a>
<h2>findVolume</h2>
<b>findVolume</b>(<i>volumeName, findAll=False</i>)

<p>
    Function to find the directory belonging to a given volume name.
</p>
<dl>

<dt><i>volumeName</i> (str)</dt>
<dd>
name of the volume to search for
</dd>
<dt><i>findAll</i> (bool (optional))</dt>
<dd>
flag indicating to get the directories for all volumes
        starting with the given name (defaults to False)
</dd>
</dl>
<dl>
<dt>Return:</dt>
<dd>
directory path or list of directory paths for the given volume
        name
</dd>
</dl>
<dl>
<dt>Return Type:</dt>
<dd>
str or list of str
</dd>
</dl>
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<hr />
<hr />
<a NAME="fromNativeSeparators" ID="fromNativeSeparators"></a>
<h2>fromNativeSeparators</h2>
<b>fromNativeSeparators</b>(<i>path</i>)

<p>
    Function returning a path, that is using "/" separator characters.
</p>
<dl>

<dt><i>path</i> (str)</dt>
<dd>
path to be converted
</dd>
</dl>
<dl>
<dt>Return:</dt>
<dd>
path with converted separator characters
</dd>
</dl>
<dl>
<dt>Return Type:</dt>
<dd>
str
</dd>
</dl>
<div align="right"><a href="#top">Up</a></div>
<hr />
<hr />
<a NAME="getDirs" ID="getDirs"></a>
<h2>getDirs</h2>
<b>getDirs</b>(<i>path, excludeDirs</i>)

<p>
    Function returning a list of all directories below path.
</p>
<dl>

<dt><i>path</i></dt>
<dd>
root of the tree to check
</dd>
<dt><i>excludeDirs</i></dt>
<dd>
basename of directories to ignore
</dd>
</dl>
<dl>
<dt>Return:</dt>
<dd>
list of all directories found
</dd>
</dl>
<div align="right"><a href="#top">Up</a></div>
<hr />
<hr />
<a NAME="getExecutablePath" ID="getExecutablePath"></a>
<h2>getExecutablePath</h2>
<b>getExecutablePath</b>(<i>file</i>)

<p>
    Function to build the full path of an executable file from the environment.
</p>
<dl>

<dt><i>file</i></dt>
<dd>
filename of the executable to check (string)
</dd>
</dl>
<dl>
<dt>Return:</dt>
<dd>
full executable name, if the executable file is accessible
        via the searchpath defined by the PATH environment variable, or an
        empty string otherwise.
</dd>
</dl>
<div align="right"><a href="#top">Up</a></div>
<hr />
<hr />
<a NAME="getExecutablePaths" ID="getExecutablePaths"></a>
<h2>getExecutablePaths</h2>
<b>getExecutablePaths</b>(<i>file</i>)

<p>
    Function to build all full path of an executable file from the environment.
</p>
<dl>

<dt><i>file</i></dt>
<dd>
filename of the executable (string)
</dd>
</dl>
<dl>
<dt>Return:</dt>
<dd>
list of full executable names (list of strings), if the executable
        file is accessible via the searchpath defined by the PATH environment
        variable, or an empty list otherwise.
</dd>
</dl>
<div align="right"><a href="#top">Up</a></div>
<hr />
<hr />
<a NAME="getVolumeName" ID="getVolumeName"></a>
<h2>getVolumeName</h2>
<b>getVolumeName</b>(<i>diskName</i>)

<p>
            Local function to determine the volume of a disk or device.
</p>
<p>
            Each disk or external device connected to windows has an
            attribute called "volume name". This function returns the
            volume name for the given disk/device.
</p>
<p>
            Code from http://stackoverflow.com/a/12056414
</p>
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<hr />
<hr />
<a NAME="getWindowsExecutablePath" ID="getWindowsExecutablePath"></a>
<h2>getWindowsExecutablePath</h2>
<b>getWindowsExecutablePath</b>(<i>file</i>)

<p>
    Function to build the full path of an executable file from the environment
    on Windows platforms.
</p>
<p>
    First an executable with the extension .exe is searched for, thereafter
    such with the extensions .cmd or .bat and finally the given file name as
    is. The first match is returned.
</p>
<dl>

<dt><i>file</i></dt>
<dd>
filename of the executable to check (string)
</dd>
</dl>
<dl>
<dt>Return:</dt>
<dd>
full executable name, if the executable file is accessible
        via the searchpath defined by the PATH environment variable, or an
        empty string otherwise.
</dd>
</dl>
<div align="right"><a href="#top">Up</a></div>
<hr />
<hr />
<a NAME="isDrive" ID="isDrive"></a>
<h2>isDrive</h2>
<b>isDrive</b>(<i>path</i>)

<p>
    Function to check, if a path is a Windows drive.
</p>
<dl>

<dt><i>path</i> (str)</dt>
<dd>
path name to be checked
</dd>
</dl>
<dl>
<dt>Return:</dt>
<dd>
flag indicating a Windows drive
</dd>
</dl>
<dl>
<dt>Return Type:</dt>
<dd>
bool
</dd>
</dl>
<div align="right"><a href="#top">Up</a></div>
<hr />
<hr />
<a NAME="isExecutable" ID="isExecutable"></a>
<h2>isExecutable</h2>
<b>isExecutable</b>(<i>exe</i>)

<p>
    Function to check, if a file is executable.
</p>
<dl>

<dt><i>exe</i></dt>
<dd>
filename of the executable to check (string)
</dd>
</dl>
<dl>
<dt>Return:</dt>
<dd>
flag indicating executable status (boolean)
</dd>
</dl>
<div align="right"><a href="#top">Up</a></div>
<hr />
<hr />
<a NAME="isinpath" ID="isinpath"></a>
<h2>isinpath</h2>
<b>isinpath</b>(<i>file</i>)

<p>
    Function to check for an executable file.
</p>
<dl>

<dt><i>file</i></dt>
<dd>
filename of the executable to check (string)
</dd>
</dl>
<dl>
<dt>Return:</dt>
<dd>
flag to indicate, if the executable file is accessible
        via the searchpath defined by the PATH environment variable.
</dd>
</dl>
<div align="right"><a href="#top">Up</a></div>
<hr />
<hr />
<a NAME="joinext" ID="joinext"></a>
<h2>joinext</h2>
<b>joinext</b>(<i>prefix, ext</i>)

<p>
    Function to join a file extension to a path.
</p>
<p>
    The leading "." of ext is replaced by a platform specific extension
    separator if necessary.
</p>
<dl>

<dt><i>prefix</i></dt>
<dd>
the basepart of the filename (string)
</dd>
<dt><i>ext</i></dt>
<dd>
the extension part (string)
</dd>
</dl>
<dl>
<dt>Return:</dt>
<dd>
the complete filename (string)
</dd>
</dl>
<div align="right"><a href="#top">Up</a></div>
<hr />
<hr />
<a NAME="normabsjoinpath" ID="normabsjoinpath"></a>
<h2>normabsjoinpath</h2>
<b>normabsjoinpath</b>(<i>a, *p</i>)

<p>
    Function returning a normalized, absolute path of the joined parts passed
    into it.
</p>
<dl>

<dt><i>a</i></dt>
<dd>
first path to be joined (string)
</dd>
<dt><i>p</i></dt>
<dd>
variable number of path parts to be joind (string)
</dd>
</dl>
<dl>
<dt>Return:</dt>
<dd>
absolute, normalized path (string)
</dd>
</dl>
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<hr />
<hr />
<a NAME="normcaseabspath" ID="normcaseabspath"></a>
<h2>normcaseabspath</h2>
<b>normcaseabspath</b>(<i>path</i>)

<p>
    Function returning an absolute path, that is normalized with respect to
    its case and references.
</p>
<dl>

<dt><i>path</i></dt>
<dd>
file path (string)
</dd>
</dl>
<dl>
<dt>Return:</dt>
<dd>
absolute, normalized path (string)
</dd>
</dl>
<div align="right"><a href="#top">Up</a></div>
<hr />
<hr />
<a NAME="normcasepath" ID="normcasepath"></a>
<h2>normcasepath</h2>
<b>normcasepath</b>(<i>path</i>)

<p>
    Function returning a path, that is normalized with respect to its case
    and references.
</p>
<dl>

<dt><i>path</i></dt>
<dd>
file path (string)
</dd>
</dl>
<dl>
<dt>Return:</dt>
<dd>
case normalized path (string)
</dd>
</dl>
<div align="right"><a href="#top">Up</a></div>
<hr />
<hr />
<a NAME="normjoinpath" ID="normjoinpath"></a>
<h2>normjoinpath</h2>
<b>normjoinpath</b>(<i>a, *p</i>)

<p>
    Function returning a normalized path of the joined parts passed into it.
</p>
<dl>

<dt><i>a</i></dt>
<dd>
first path to be joined (string)
</dd>
<dt><i>p</i></dt>
<dd>
variable number of path parts to be joined (string)
</dd>
</dl>
<dl>
<dt>Return:</dt>
<dd>
normalized path (string)
</dd>
</dl>
<div align="right"><a href="#top">Up</a></div>
<hr />
<hr />
<a NAME="relativeUniversalPath" ID="relativeUniversalPath"></a>
<h2>relativeUniversalPath</h2>
<b>relativeUniversalPath</b>(<i>path, start</i>)

<p>
    Function to convert a file path to a path relative to a start path
    with universal separators.
</p>
<dl>

<dt><i>path</i></dt>
<dd>
file or directory name to convert (string)
</dd>
<dt><i>start</i></dt>
<dd>
start path (string)
</dd>
</dl>
<dl>
<dt>Return:</dt>
<dd>
relative path or unchanged path, if path does not start with
        the start path with universal separators (string)
</dd>
</dl>
<div align="right"><a href="#top">Up</a></div>
<hr />
<hr />
<a NAME="samefilepath" ID="samefilepath"></a>
<h2>samefilepath</h2>
<b>samefilepath</b>(<i>f1, f2</i>)

<p>
    Function to compare two paths. Strips the filename.
</p>
<dl>

<dt><i>f1</i></dt>
<dd>
first filepath for the compare (string)
</dd>
<dt><i>f2</i></dt>
<dd>
second filepath for the compare (string)
</dd>
</dl>
<dl>
<dt>Return:</dt>
<dd>
flag indicating whether the two paths represent the
        same path on disk.
</dd>
</dl>
<div align="right"><a href="#top">Up</a></div>
<hr />
<hr />
<a NAME="samepath" ID="samepath"></a>
<h2>samepath</h2>
<b>samepath</b>(<i>f1, f2</i>)

<p>
    Function to compare two paths.
</p>
<dl>

<dt><i>f1</i></dt>
<dd>
first path for the compare (string)
</dd>
<dt><i>f2</i></dt>
<dd>
second path for the compare (string)
</dd>
</dl>
<dl>
<dt>Return:</dt>
<dd>
flag indicating whether the two paths represent the
        same path on disk.
</dd>
</dl>
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<hr />
<hr />
<a NAME="splitPath" ID="splitPath"></a>
<h2>splitPath</h2>
<b>splitPath</b>(<i>name</i>)

<p>
    Function to split a pathname into a directory part and a file part.
</p>
<dl>

<dt><i>name</i></dt>
<dd>
path name (string)
</dd>
</dl>
<dl>
<dt>Return:</dt>
<dd>
a tuple of 2 strings (dirname, filename).
</dd>
</dl>
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<hr />
<hr />
<a NAME="startswithPath" ID="startswithPath"></a>
<h2>startswithPath</h2>
<b>startswithPath</b>(<i>path, start</i>)

<p>
    Function to check, if a path starts with a given start path.
</p>
<dl>

<dt><i>path</i> (str)</dt>
<dd>
path to be checked
</dd>
<dt><i>start</i> (str)</dt>
<dd>
start path
</dd>
</dl>
<dl>
<dt>Return:</dt>
<dd>
flag indicating that the path starts with the given start
        path
</dd>
</dl>
<dl>
<dt>Return Type:</dt>
<dd>
bool
</dd>
</dl>
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<hr />
<hr />
<a NAME="toNativeSeparators" ID="toNativeSeparators"></a>
<h2>toNativeSeparators</h2>
<b>toNativeSeparators</b>(<i>path</i>)

<p>
    Function returning a path, that is using native separator characters.
</p>
<dl>

<dt><i>path</i> (str)</dt>
<dd>
path to be converted
</dd>
</dl>
<dl>
<dt>Return:</dt>
<dd>
path with converted separator characters
</dd>
</dl>
<dl>
<dt>Return Type:</dt>
<dd>
str
</dd>
</dl>
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<hr />
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