Tcl

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
----

Tcl

load ./chilkat.dll

set success 0

set dirTree [new_CkDirTree]

# Specify the root of the directory tree to be traversed.
CkDirTree_put_BaseDir $dirTree "c:/temp/abc123"

# Indicate that we want to recursively traverse the tree.
CkDirTree_put_Recurse $dirTree 1

# Begin the directory tree traversal.
set success [CkDirTree_BeginIterate $dirTree]
if {$success != 1} then {
    puts [CkDirTree_lastErrorText $dirTree]
    delete_CkDirTree $dirTree
    exit
}

set doneIterating [CkDirTree_get_DoneIterating $dirTree]
while {$doneIterating != 1} {

    # Examine the file or directory at the current traversal position:
    if {[CkDirTree_get_IsDirectory $dirTree] == 1} then {
        puts "(sub-directory)"
    }     else {
        puts "Size in bytes: [CkDirTree_get_FileSize32 $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)
        puts "Size in bytes: [CkDirTree_fileSizeStr $dirTree]"
    }

    puts "Relative Path: [CkDirTree_relativePath $dirTree]"
    puts "Absolute Path: [CkDirTree_fullPath $dirTree]"
    puts "Absolute UNC Path: [CkDirTree_fullUncPath $dirTree]"
    puts "----"

    # Advance to the next file or sub-directory in the tree traversal.
    set success [CkDirTree_AdvancePosition $dirTree]
    if {$success != 1} then {
        if {[CkDirTree_get_DoneIterating $dirTree] != 1} then {
            puts [CkDirTree_lastErrorText $dirTree]
            delete_CkDirTree $dirTree
            exit
        }

    }

    set doneIterating [CkDirTree_get_DoneIterating $dirTree]
}

delete_CkDirTree $dirTree