TCL: Recursively search subdirectories to source all .tcl files

Question

I have a main TCL proc that sources tons of other tcl procs in other folders and subsequent subdirectories. For example, in the main proc it has:

source $basepa         


        

Answer 1

Based on a previous answer, this version handles cycles created by symbolic links and in the process eliminates duplicate files due to symbolic links as well.

# findFiles
# basedir - the directory to start looking in
# pattern - A pattern, as defined by the glob command, that the files must match
proc findFiles {directory pattern} {

    # Fix the directory name, this ensures the directory name is in the
    # native format for the platform and contains a final directory seperator
    set directory [string trimright [file join [file normalize $directory] { }]]

    # Starting with the passed in directory, do a breadth first search for
    # subdirectories. Avoid cycles by normalizing all file paths and checking
    # for duplicates at each level.

    set directories [list]
    set parents $directory
    while {[llength $parents] > 0} {

        # Find all the children at the current level
        set children [list]
        foreach parent $parents {
            set children [concat $children [glob -nocomplain -type {d r} -path $parent *]]
        }

        # Normalize the children
        set length [llength $children]
        for {set i 0} {$i < $length} {incr i} {
            lset children $i [string trimright [file join [file normalize [lindex $children $i]] { }]]
        }

        # Make the list of children unique
        set children [lsort -unique $children]

        # Find the children that are not duplicates, use them for the next level
        set parents [list]
        foreach child $children {
            if {[lsearch -sorted $directories $child] == -1} {
                lappend parents $child
            }
        }

        # Append the next level directories to the complete list
        set directories [lsort -unique [concat $directories $parents]]
    }

    # Get all the files in the passed in directory and all its subdirectories
    set result [list]
    foreach directory $directories {
        set result [concat $result [glob -nocomplain -type {f r} -path $directory -- $pattern]]
    }

    # Normalize the filenames
    set length [llength $result]
    for {set i 0} {$i < $length} {incr i} {
        lset result $i [file normalize [lindex $result $i]]
    }

    # Return only unique filenames
    return [lsort -unique $result]
}