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Comment:Updated to only mount VFS once

Updated to always load "vfs"

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SHA1: d5ed5900ebd5d9ab7c04a318316b809cf4fd254a
User & Date: rkeene on 2011-05-28 23:53:40
Other Links: manifest | tags
Context
2011-06-03
05:37
Merged in pluggable branch check-in: 78b96b6e9c user: rkeene tags: trunk
2011-05-28
23:59
Merged trunk changes into branch check-in: ddf9f18c93 user: rkeene tags: pluggable
23:53
Updated to only mount VFS once

Updated to always load "vfs" check-in: d5ed5900eb user: rkeene tags: trunk

06:38
Updated to support finding TCLSH_NATIVE by the root kitcreator script and using that in most places where a native Tcl interpreter is needed

Updated to find date of Fossil checkin when a fossil tag or ID is specified and use that date for checkouts of other projects check-in: 0527703474 user: rkeene tags: trunk

Changes
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Modified kitsh/buildsrc/kitsh-0.0/boot.tcl from [19424b6588] to [fcd5a93523].

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	set mountpoint [file dirname [file normalize [file join $mountpoint __dummy__]]]

	set tcl_library [file join $mountpoint lib tcl$tcl_version]
	set tcl_libPath [list $tcl_library [file join $mountpoint lib]]

	# the following code only gets executed once on startup
	if {[info exists ::TCLKIT_INITVFS]} {
		catch {
			load {} vfs
		}

		# lookup and emulate "source" of lib/vfs/{vfs*.tcl,mk4vfs.tcl}
		switch -- $::tclKitStorage {
			"mk4" {
				# must use raw MetaKit calls because VFS is not yet in place
				set d [mk::select exe.dirs parent 0 name lib]
				set d [mk::select exe.dirs parent $d name vfs]
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		# Resolve symlinks
		set mountpoint [file dirname [file normalize [file join $mountpoint __dummy__]]]

		set tcl_library [file join $mountpoint lib tcl$tcl_version]
		set tcl_libPath [list $tcl_library [file join $mountpoint lib]]

		vfs::filesystem mount $mountpoint $vfsHandler

		# This loads everything needed for "clock scan" to work
		# "clock scan" is used within "vfs::zip", which may be
		# loaded before this is run causing the root VFS to break
		catch { clock scan }
	}
  
	# load config settings file if present
	namespace eval ::vfs { variable tclkit_version 1 }
	catch { uplevel #0 [list source [file join $mountpoint config.tcl]] }

	# Perform expected initialization
	uplevel #0 [list source [file join $tcl_library init.tcl]]
  
	# reset auto_path, so that init.tcl's search outside of tclkit is cancelled
	set auto_path $tcl_libPath

	# This loads everything needed for "clock scan" to work
	# "clock scan" is used within "vfs::zip", which may be
	# loaded before this is run causing the root VFS to break
	catch { clock scan }

	if {$::TCLKIT_TYPE == "kitdll"} {
		# Set a maximum seek to avoid reading the entire file looking for a
		# zip header
		catch { 
			package require vfs::zip
			set ::zip::max_header_seek 8192
		}

		# Now that the initialization is complete, mount the user VFS if needed
		## Mount the VFS from the Shared Object
		if {[info exists ::TCLKIT_INITVFS] && [info exists ::tclKitFilename]} {
			catch {
				vfs::zip::Mount $::tclKitFilename "/.KITDLL_USER"

				lappend auto_path [file normalize "/.KITDLL_USER/lib"]
				lappend auto_path "/.KITDLL_USER/lib"
			}
		}

		## Mount the VFS from executable
		if {[info exists ::TCLKIT_INITVFS]} {
			catch {
				vfs::zip::Mount [info nameofexecutable] "/.KITDLL_APP"

				lappend auto_path [file normalize "/.KITDLL_APP/lib"]
				lappend auto_path "/.KITDLL_APP/lib"
			}
		}

	}

	# Clean up
	unset -nocomplain ::zip::max_header_seek
	unset -nocomplain ::TCLKIT_TYPE ::TCLKIT_INITVFS
	unset -nocomplain ::TCLKIT_MOUNTPOINT ::TCLKIT_VFSSOURCE ::TCLKIT_MOUNTPOINT_VAR ::TCLKIT_VFSSOURCE_VAR
	unset -nocomplain ::tclKitStorage ::tclKitStorage_fd ::tclKitFilename
	unset -nocomplain ::tclkit_system_encoding
}

Modified kitsh/buildsrc/kitsh-0.0/kitInit.c from [901380bcbe] to [50169ff8c3].

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	"info script $old\n"
	"if {$code == 2} { set code 0 }\n"
	"return -code $code $res\n"
"}\n"
#endif /* _WIN32_WCE && !TCLKIT_DLL */
"proc tclKitInit {} {\n"
	"rename tclKitInit {}\n"
	"catch { load {} vfs }\n"
#ifdef KIT_INCLUDES_ZLIB
	"catch { load {} zlib }\n"
#endif
#ifdef KIT_INCLUDES_MK4TCL
	"catch { load {} Mk4tcl }\n"
#endif
#ifdef TCLKIT_DLL
	"load {} tclkit::init\n"
	"::tclkit::init::initInterp\n"
	"rename ::tclkit::init::initInterp {}\n"
#endif /* TCLKIT_DLL */
	"set bootfile [file join " TCLKIT_MOUNTPOINT " boot.tcl]\n"
	"if {[file exists $bootfile]} {\n"
		"catch {\n"
			"set f [open $bootfile]\n"
			"set s [read $f]\n"
			"close $f\n"
		"}\n"
	"} else {\n"
		"set ::TCLKIT_INITVFS 1\n"
	"}\n"
#ifdef KIT_STORAGE_MK4
	"set ::tclKitStorage \"mk4\"\n"
	"if {![info exists s]} {\n"
		"mk::file open exe " TCLKIT_VFSSOURCE " -readonly\n"
		"set n [mk::select exe.dirs!0.files name boot.tcl]\n"
		"if {$n != \"\"} {\n"
			"set s [mk::get exe.dirs!0.files!$n contents]\n"
			"if {![string length $s]} { error \"empty boot.tcl\" }\n"
			"catch {load {} zlib}\n"
			"if {[mk::get exe.dirs!0.files!$n size] != [string length $s]} {\n"
				"set s [zlib decompress $s]\n"
			"}\n"
		"}\n"
	"}\n"
#endif /* KIT_STORAGE_MK4 */
#ifdef KIT_STORAGE_ZIP
	"set ::tclKitStorage \"zip\"\n"
	"catch { load {} vfs }\n"
	"if {![info exists s]} {\n"
#  include "zipvfs.tcl.h"
		"catch {\n"
			"set ::tclKitStorage_fd [::zip::open " TCLKIT_VFSSOURCE "]\n"
			"::zip::stat $::tclKitStorage_fd boot.tcl sb\n"
			"seek $::tclKitStorage_fd $sb(ino)\n"
			"::zip::Data $::tclKitStorage_fd sb s\n"
		"}\n"
	"}\n"
#endif /* KIT_STORAGE_ZIP */
#ifdef KIT_STORAGE_CVFS
	"set ::tclKitStorage \"cvfs\"\n"
	"load {} rechan\n"
	"load {} vfs\n"
	"load {} cvfs_data_tcl\n"
#include "cvfs.tcl.h"
	"if {![info exists s]} {\n"
		"catch {\n"
			"set s [::vfs::cvfs::data::getData tcl boot.tcl]\n"
		"}\n"
	"}\n"
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	/* the tcl_rcFileName variable only exists in the initial interpreter */
#  ifdef _WIN32
	Tcl_SetVar(interp, "tcl_rcFileName", "~/tclkitrc.tcl", TCL_GLOBAL_ONLY);
#  else
	Tcl_SetVar(interp, "tcl_rcFileName", "~/.tclkitrc", TCL_GLOBAL_ONLY);
#  endif /* _WIN32 */
#endif /* !TCLKIT_DLL */
	Tcl_SetVar(interp, "TCLKIT_INITVFS", "1", TCL_GLOBAL_ONLY);

#ifdef TCLKIT_CAN_SET_ENCODING
	/* Set the encoding from the Environment */
	Tcl_GetEncodingNameFromEnvironment(&encodingName);
	Tcl_SetSystemEncoding(NULL, Tcl_DStringValue(&encodingName));
	Tcl_SetVar(interp, "tclkit_system_encoding", Tcl_DStringValue(&encodingName), 0);
	Tcl_DStringFree(&encodingName);
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