PureBasic

Iterate over Files and Directories in Filesystem Directory Tree

Demonstrates how to use the Chilkat DirTree object/class to iterate over the names of files and sub-directories in a directory tree.

This example iterates over a directory tree that contains these files and sub-directories:

a
    images (sub-directory)
        dudeA.gif
        Thumbs.db
    hamlet.xml
    pigs.xml
    Setup.exe
b
    yyy (sub-directory)
    zzz (sub-directory)
        HelloWorld123.txt
        test123.txt
    dude.gif
    dudeC.gif
    hello.txt
    Thumbs.db
test123.txt

The output for the code below looks like this:

(sub-directory)
Relative Path: a
Absolute Path: c:\temp\abc123\a
Absolute UNC Path: \\?\c:\temp\abc123\a
----
(sub-directory)
Relative Path: b
Absolute Path: c:\temp\abc123\b
Absolute UNC Path: \\?\c:\temp\abc123\b
----
Size in bytes: 15
Relative Path: test123.txt
Absolute Path: c:\temp\abc123\test123.txt
Absolute UNC Path: \\?\c:\temp\abc123\test123.txt
----
Size in bytes: 279658
Relative Path: a\hamlet.xml
Absolute Path: c:\temp\abc123\a\hamlet.xml
Absolute UNC Path: \\?\c:\temp\abc123\a\hamlet.xml
----
(sub-directory)
Relative Path: a\images
Absolute Path: c:\temp\abc123\a\images
Absolute UNC Path: \\?\c:\temp\abc123\a\images
----
Size in bytes: 8463
Relative Path: a\pigs.xml
Absolute Path: c:\temp\abc123\a\pigs.xml
Absolute UNC Path: \\?\c:\temp\abc123\a\pigs.xml
----
Size in bytes: 24576
Relative Path: a\Setup.exe
Absolute Path: c:\temp\abc123\a\Setup.exe
Absolute UNC Path: \\?\c:\temp\abc123\a\Setup.exe
----
Size in bytes: 6221
Relative Path: b\dude.gif
Absolute Path: c:\temp\abc123\b\dude.gif
Absolute UNC Path: \\?\c:\temp\abc123\b\dude.gif
----
Size in bytes: 6221
Relative Path: b\dudeC.gif
Absolute Path: c:\temp\abc123\b\dudeC.gif
Absolute UNC Path: \\?\c:\temp\abc123\b\dudeC.gif
----
Size in bytes: 13
Relative Path: b\hello.txt
Absolute Path: c:\temp\abc123\b\hello.txt
Absolute UNC Path: \\?\c:\temp\abc123\b\hello.txt
----
Size in bytes: 10240
Relative Path: b\Thumbs.db
Absolute Path: c:\temp\abc123\b\Thumbs.db
Absolute UNC Path: \\?\c:\temp\abc123\b\Thumbs.db
----
(sub-directory)
Relative Path: b\yyy
Absolute Path: c:\temp\abc123\b\yyy
Absolute UNC Path: \\?\c:\temp\abc123\b\yyy
----
(sub-directory)
Relative Path: b\zzz
Absolute Path: c:\temp\abc123\b\zzz
Absolute UNC Path: \\?\c:\temp\abc123\b\zzz
----
Size in bytes: 6221
Relative Path: a\images\dudeA.gif
Absolute Path: c:\temp\abc123\a\images\dudeA.gif
Absolute UNC Path: \\?\c:\temp\abc123\a\images\dudeA.gif
----
Size in bytes: 6144
Relative Path: a\images\Thumbs.db
Absolute Path: c:\temp\abc123\a\images\Thumbs.db
Absolute UNC Path: \\?\c:\temp\abc123\a\images\Thumbs.db
----
Size in bytes: 6080
Relative Path: b\zzz\HelloWorld123.txt
Absolute Path: c:\temp\abc123\b\zzz\HelloWorld123.txt
Absolute UNC Path: \\?\c:\temp\abc123\b\zzz\HelloWorld123.txt
----
Size in bytes: 15
Relative Path: b\zzz\test123.txt
Absolute Path: c:\temp\abc123\b\zzz\test123.txt
Absolute UNC Path: \\?\c:\temp\abc123\b\zzz\test123.txt
----

PureBasic

IncludeFile "CkDirTree.pb"

Procedure ChilkatExample()

    success.i = 0

    dirTree.i = CkDirTree::ckCreate()
    If dirTree.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    ; Specify the root of the directory tree to be traversed.
    CkDirTree::setCkBaseDir(dirTree, "c:/temp/abc123")

    ; Indicate that we want to recursively traverse the tree.
    CkDirTree::setCkRecurse(dirTree, 1)

    ; Begin the directory tree traversal.
    success = CkDirTree::ckBeginIterate(dirTree)
    If success <> 1
        Debug CkDirTree::ckLastErrorText(dirTree)
        CkDirTree::ckDispose(dirTree)
        ProcedureReturn
    EndIf

    doneIterating.i = CkDirTree::ckDoneIterating(dirTree)
    While doneIterating <> 1

        ; Examine the file or directory at the current traversal position:
        If CkDirTree::ckIsDirectory(dirTree) = 1
            Debug "(sub-directory)"
        Else
            Debug "Size in bytes: " + Str(CkDirTree::ckFileSize32(dirTree))
            ; If the file size is larger than 2GB, then get the size as a decimal string.
            ; (Chilkat provides a FileSize64 method in *some* programming languages. The FileSizeStr property is added in Chilkat v9.5.0.88)
            Debug "Size in bytes: " + CkDirTree::ckFileSizeStr(dirTree)
        EndIf

        Debug "Relative Path: " + CkDirTree::ckRelativePath(dirTree)
        Debug "Absolute Path: " + CkDirTree::ckFullPath(dirTree)
        Debug "Absolute UNC Path: " + CkDirTree::ckFullUncPath(dirTree)
        Debug "----"

        ; Advance to the next file or sub-directory in the tree traversal.
        success = CkDirTree::ckAdvancePosition(dirTree)
        If success <> 1
            If CkDirTree::ckDoneIterating(dirTree) <> 1
                Debug CkDirTree::ckLastErrorText(dirTree)
                CkDirTree::ckDispose(dirTree)
                ProcedureReturn
            EndIf

        EndIf

        doneIterating = CkDirTree::ckDoneIterating(dirTree)
    Wend


    CkDirTree::ckDispose(dirTree)


    ProcedureReturn
EndProcedure