Tcl Source Code

    append index "# information so that packages will be loaded automatically\n"
    append index "# in response to \"package require\" commands.  When this\n"
    append index "# script is sourced, the variable \$dir must contain the\n"
    append index "# full path name of this file's directory.\n"

    foreach pkg [lsort [array names files]] {
	set cmd {}
	foreach {name version} $pkg {
	    break
	}
	lappend cmd ::tcl::Pkg::Create -name $name -version $version
	foreach spec [lsort -index 0 $files($pkg)] {
	    foreach {file type procs} $spec {
		if { $direct } {
		    set procs {}
		}
		lappend cmd "-$type" [list $file $procs]

	# $index now points to the first element of $auto_path that
	# has changed, or the beginning if $auto_path has changed length
	# Scan the new elements of $auto_path for directories to add to
	# $use_path.  Don't add directories we've already seen, or ones
	# already on the $use_path.
	foreach dir [lrange $auto_path $index end] {
	    if {![info exists tclSeenPath($dir)] 
		    && ([lsearch -exact $use_path $dir] == -1) } {
		lappend use_path $dir
	    }
	}
	set old_path $auto_path
    }
}

	# $index now points to the first element of $auto_path that
	# has changed, or the beginning if $auto_path has changed length
	# Scan the new elements of $auto_path for directories to add to
	# $use_path.  Don't add directories we've already seen, or ones
	# already on the $use_path.
	foreach dir [lrange $auto_path $index end] {
	    if {![info exists tclSeenPath($dir)] 
		    && ([lsearch -exact $use_path $dir] == -1) } {
		lappend use_path $dir
	    }
	}
	set old_path $auto_path
    }
}

    # process arguments
    set len [llength $args]
    if { $len < 6 } {
	error $err(wrongNumArgs)
    }
    
    # Initialize parameters
    set opts(-name)		{}
    set opts(-version)		{}
    set opts(-source)		{}
    set opts(-load)		{}

    # process parameters
    for {set i 0} {$i < $len} {incr i} {
	set flag [lindex $args $i]
	incr i
	switch -glob -- $flag {
	    "-name"		-

    
    set cmdList {}
    set lazyFileList {}

    # Handle -load and -source specs
    foreach key {load source} {
	foreach filespec $opts(-$key) {
	    foreach {filename proclist} {{} {}} {
		break
	    }
	    foreach {filename proclist} $filespec {
		break
	    }
	    
	    if { [llength $proclist] == 0 } {
		set cmd "\[list $key \[file join \$dir [list $filename]\]\]"
		lappend cmdList $cmd
	    } else {
		lappend lazyFileList [list $filename $key $proclist]
	    }

    # The regex pattern a file name has to match to make it a Tcl Module.

    set pkgpattern {^([_[:alpha:]][:_[:alnum:]]*)-([[:digit:]].*)[.]tm$}

    # Export the public API

    namespace export path
    namespace ensemble create -command path -subcommand {add remove list}
}

# ::tcl::tm::path implementations --
#
#	Public API to the module path. See specification.
#
# Arguments

		    # We abort in this unknown handler only if we got
		    # a satisfying candidate for the requested
		    # package. Otherwise we still have to fallback to
		    # the regular package search to complete the
		    # processing.

		    if {
			($pkgname eq $name) &&
			[package vsatisfies $pkgversion {*}$args]
		    } then {
			set satisfied 1
			# We do not abort the loop, and keep adding
			# provide scripts for every candidate in the
			# directory, just remember to not fall back to
			# the regular search anymore.
		    }
		}

# Results
#	No result.
#
# Sideeffects
#	Calls 'path add' to paths to the list of module search paths.

proc ::tcl::tm::roots {paths} {
    foreach {major minor} [split [info tclversion] .] break
    foreach pa $paths {
	set p [file join $pa tcl$major]
	for {set n $minor} {$n >= 0} {incr n -1} {
	    set px [file join $p ${major}.${n}]
	    if {![interp issafe]} { set px [file normalize $px] }
	    path add $px
	}

# This file contains tests for the pkg_mkIndex command.
# Note that the tests are limited to Tcl scripts only, there are no shared
# libraries against which to test.
#
# Sourcing this file into Tcl runs the tests and generates output for
# errors.  No output means no errors were found.
#
# Copyright (c) 1998-1999 by Scriptics Corporation.
# All rights reserved.

if {[lsearch [namespace children] ::tcltest] == -1} {
    package require tcltest 2
    namespace import -force ::tcltest::*
}

set fullPkgPath [makeDirectory pkg]


namespace eval pkgtest {
    # Namespace for procs we can discard
}

    set options ""

    set argc [llength $args]
    for {set iarg 0} {$iarg < $argc} {incr iarg} {
	set a [lindex $args $iarg]
	if {[regexp {^-} $a]} {
	    lappend options $a
	    if {[string compare -load $a] == 0} {
		incr iarg
		lappend options [lindex $args $iarg]
	    }
	} else {
	    break
	}
    }

    # create a slave interpreter, where we override "package ifneeded"

    set slave [interp create]
    if {[catch {
	$slave eval {
	    rename package package_original
	    proc package { args } {
		if {[string compare [lindex $args 0] ifneeded] == 0} {
		    set pkg [lindex $args 1]
		    set ver [lindex $args 2]
		    set ::PKGS($pkg:$ver) [lindex $args 3]
		} else {
		    return [package_original {*}$args]
		}
	    }

	    set P($k) $v
	}

	set PKGS ""
	foreach k [lsort [array names P]] {
	    lappend PKGS $k $P($k)
	}
    } err]} {
	set ei $::errorInfo
	set ec $::errorCode

	catch {interp delete $slave}

	error $ei $ec
    }

    interp delete $slave

    ::tcl::tm::path list
} -result {geode snarf foo}


proc genpaths {base} {
    # Normalizing picks up drive letters on windows [Bug 1053568]
    set base [file normalize $base]
    foreach {major minor} [split [info tclversion] .] break
    set results {}
    set base [file join $base tcl$major]
    lappend results [file join $base site-tcl]
    for {set i 0} {$i <= $minor} {incr i} {
	lappend results [file join $base ${major}.$i]
    }
    return $results