Annotation For lib/xvfs/xvfs.tcl

Origin for each line in lib/xvfs/xvfs.tcl from check-in d99958bdd3:

47dcf5fc27 2019-05-01    1: #! /usr/bin/env tclsh
47dcf5fc27 2019-05-01    2: 
47dcf5fc27 2019-05-01    3: namespace eval ::xvfs {}
47dcf5fc27 2019-05-01    4: 
47dcf5fc27 2019-05-01    5: # Functions
47dcf5fc27 2019-05-01    6: proc ::xvfs::printHelp {channel {errors ""}} {
47dcf5fc27 2019-05-01    7: 	if {[llength $errors] != 0} {
47dcf5fc27 2019-05-01    8: 		foreach error $errors {
47dcf5fc27 2019-05-01    9: 			puts $channel "error: $error"
47dcf5fc27 2019-05-01   10: 		}
47dcf5fc27 2019-05-01   11: 		puts $channel ""
47dcf5fc27 2019-05-01   12: 	}
47dcf5fc27 2019-05-01   13: 	puts $channel "Usage: dir2c \[--help\] --directory <rootDirectory> --name <fsName>"
47dcf5fc27 2019-05-01   14: 	flush $channel
47dcf5fc27 2019-05-01   15: }
47dcf5fc27 2019-05-01   16: 
47dcf5fc27 2019-05-01   17: proc ::xvfs::sanitizeCString {string} {
47dcf5fc27 2019-05-01   18: 	set output [join [lmap char [split $string ""] {
47dcf5fc27 2019-05-01   19: 		if {![regexp {[A-Za-z0-9./-]} $char]} {
47dcf5fc27 2019-05-01   20: 			binary scan $char H* char
47dcf5fc27 2019-05-01   21: 			set char "\\[format %03o 0x$char]"
47dcf5fc27 2019-05-01   22: 		}
47dcf5fc27 2019-05-01   23: 
47dcf5fc27 2019-05-01   24: 		set char
47dcf5fc27 2019-05-01   25: 	}] ""]
47dcf5fc27 2019-05-01   26: 
47dcf5fc27 2019-05-01   27: 	return $output
47dcf5fc27 2019-05-01   28: }
47dcf5fc27 2019-05-01   29: 
32b55a907b 2019-05-02   30: proc ::xvfs::sanitizeCStringList {list {prefix ""} {width 80}} {
32b55a907b 2019-05-02   31: 	set lines [list]
32b55a907b 2019-05-02   32: 	set row [list]
32b55a907b 2019-05-02   33: 	foreach item $list {
32b55a907b 2019-05-02   34: 		lappend row "\"[sanitizeCString $item]\""
32b55a907b 2019-05-02   35: 		
32b55a907b 2019-05-02   36: 		set rowString [join $row {, }]
32b55a907b 2019-05-02   37: 		set rowString "${prefix}${rowString}"
32b55a907b 2019-05-02   38: 		if {[string length $rowString] > $width} {
32b55a907b 2019-05-02   39: 			set row [list]
32b55a907b 2019-05-02   40: 			lappend lines $rowString
32b55a907b 2019-05-02   41: 			unset rowString
32b55a907b 2019-05-02   42: 		}
32b55a907b 2019-05-02   43: 	}
32b55a907b 2019-05-02   44: 	if {[info exists rowString]} {
32b55a907b 2019-05-02   45: 		lappend lines $rowString
32b55a907b 2019-05-02   46: 	}
32b55a907b 2019-05-02   47: 	
32b55a907b 2019-05-02   48: 	return [join $lines "\n"]
32b55a907b 2019-05-02   49: }
32b55a907b 2019-05-02   50: 
47dcf5fc27 2019-05-01   51: proc ::xvfs::binaryToCHex {binary {prefix ""} {width 10}} {
47dcf5fc27 2019-05-01   52: 	binary scan $binary H* binary
47dcf5fc27 2019-05-01   53: 	set output [list]
47dcf5fc27 2019-05-01   54: 
47dcf5fc27 2019-05-01   55: 	set width [expr {$width * 2}]
47dcf5fc27 2019-05-01   56: 	set stopAt [expr {$width - 1}]
47dcf5fc27 2019-05-01   57: 
47dcf5fc27 2019-05-01   58: 	while {$binary ne ""} {
47dcf5fc27 2019-05-01   59: 		set row [string range $binary 0 $stopAt]
47dcf5fc27 2019-05-01   60: 		set binary [string range $binary $width end]
47dcf5fc27 2019-05-01   61: 
47dcf5fc27 2019-05-01   62: 		set rowOutput [list]
47dcf5fc27 2019-05-01   63: 		while {$row ne ""} {
47dcf5fc27 2019-05-01   64: 			set value [string range $row 0 1]
47dcf5fc27 2019-05-01   65: 			set row [string range $row 2 end]
47dcf5fc27 2019-05-01   66: 
47dcf5fc27 2019-05-01   67: 			lappend rowOutput "\\x$value"
47dcf5fc27 2019-05-01   68: 		}
47dcf5fc27 2019-05-01   69: 		set rowOutput [join $rowOutput {}]
47dcf5fc27 2019-05-01   70: 		set rowOutput "${prefix}\"${rowOutput}\""
47dcf5fc27 2019-05-01   71: 		lappend output $rowOutput
47dcf5fc27 2019-05-01   72: 	}
47dcf5fc27 2019-05-01   73: 
47dcf5fc27 2019-05-01   74: 	if {[llength $output] == 0} {
47dcf5fc27 2019-05-01   75: 		return "${prefix}\"\""
47dcf5fc27 2019-05-01   76: 	}
47dcf5fc27 2019-05-01   77: 
47dcf5fc27 2019-05-01   78: 	set output [join $output "\n"]
47dcf5fc27 2019-05-01   79: }
47dcf5fc27 2019-05-01   80: 
47dcf5fc27 2019-05-01   81: proc ::xvfs::processFile {fsName inputFile outputFile fileInfoDict} {
47dcf5fc27 2019-05-01   82: 	array set fileInfo $fileInfoDict
47dcf5fc27 2019-05-01   83: 
47dcf5fc27 2019-05-01   84: 	switch -exact -- $fileInfo(type) {
47dcf5fc27 2019-05-01   85: 		"file" {
47dcf5fc27 2019-05-01   86: 			set type "XVFS_FILE_TYPE_REG"
47dcf5fc27 2019-05-01   87: 			set fd [open $inputFile]
47dcf5fc27 2019-05-01   88: 			fconfigure $fd -encoding binary -translation binary -blocking true
47dcf5fc27 2019-05-01   89: 			set data [read $fd]
47dcf5fc27 2019-05-01   90: 			set size [string length $data]
47dcf5fc27 2019-05-01   91: 			set data [string trimleft [binaryToCHex $data "\t\t\t"]]
47dcf5fc27 2019-05-01   92: 			close $fd
47dcf5fc27 2019-05-01   93: 		}
47dcf5fc27 2019-05-01   94: 		"directory" {
47dcf5fc27 2019-05-01   95: 			set type "XVFS_FILE_TYPE_DIR"
32b55a907b 2019-05-02   96: 			set children $fileInfo(children)
32b55a907b 2019-05-02   97: 			set size [llength $children]
32b55a907b 2019-05-02   98: 			
32b55a907b 2019-05-02   99: 			if {$size == 0} {
32b55a907b 2019-05-02  100: 				set children "NULL"
32b55a907b 2019-05-02  101: 			} else {
32b55a907b 2019-05-02  102: 				set children [string trimleft [sanitizeCStringList $children "\t\t\t"]]
32b55a907b 2019-05-02  103: 				# This initializes it using a C99 compound literal, C99 is required
32b55a907b 2019-05-02  104: 				set children "(const char *\[\]) \{$children\}"
32b55a907b 2019-05-02  105: 			}
47dcf5fc27 2019-05-01  106: 		}
47dcf5fc27 2019-05-01  107: 		default {
47dcf5fc27 2019-05-01  108: 			return -code error "Unable to process $inputFile, unknown type: $fileInfo(type)"
47dcf5fc27 2019-05-01  109: 		}
47dcf5fc27 2019-05-01  110: 	}
47dcf5fc27 2019-05-01  111: 
47dcf5fc27 2019-05-01  112: 	puts "\t\{"
47dcf5fc27 2019-05-01  113: 	puts "\t\t.name = \"[sanitizeCString $outputFile]\","
47dcf5fc27 2019-05-01  114: 	puts "\t\t.type = $type,"
47dcf5fc27 2019-05-01  115: 	puts "\t\t.size = $size,"
32b55a907b 2019-05-02  116: 	switch -exact -- $fileInfo(type) {
32b55a907b 2019-05-02  117: 		"file" {
32b55a907b 2019-05-02  118: 			puts "\t\t.data.fileContents = (const unsigned char *) $data"
32b55a907b 2019-05-02  119: 		}
32b55a907b 2019-05-02  120: 		"directory" {
32b55a907b 2019-05-02  121: 			puts "\t\t.data.dirChildren  = $children"
32b55a907b 2019-05-02  122: 		}
32b55a907b 2019-05-02  123: 	}
47dcf5fc27 2019-05-01  124: 	puts "\t\},"
47dcf5fc27 2019-05-01  125: }
47dcf5fc27 2019-05-01  126: 
47dcf5fc27 2019-05-01  127: proc ::xvfs::processDirectory {fsName directory {subDirectory ""}} {
47dcf5fc27 2019-05-01  128: 	set subDirectories [list]
47dcf5fc27 2019-05-01  129: 	set outputFiles [list]
47dcf5fc27 2019-05-01  130: 	set workingDirectory [file join $directory $subDirectory]
47dcf5fc27 2019-05-01  131: 	set outputDirectory $subDirectory
47dcf5fc27 2019-05-01  132: 
47dcf5fc27 2019-05-01  133: 	if {$subDirectory eq ""} {
47dcf5fc27 2019-05-01  134: 		set isTopLevel true
47dcf5fc27 2019-05-01  135: 	} else {
47dcf5fc27 2019-05-01  136: 		set isTopLevel false
47dcf5fc27 2019-05-01  137: 	}
47dcf5fc27 2019-05-01  138: 
47dcf5fc27 2019-05-01  139: 	if {$isTopLevel} {
47dcf5fc27 2019-05-01  140: 		puts "static struct xvfs_file_data xvfs_${fsName}_data\[\] = \{"
47dcf5fc27 2019-05-01  141: 	}
47dcf5fc27 2019-05-01  142: 
47dcf5fc27 2019-05-01  143: 	# XXX:TODO: Include hidden files ?
32b55a907b 2019-05-02  144: 	set children [list]
47dcf5fc27 2019-05-01  145: 	foreach file [glob -nocomplain -tails -directory $workingDirectory *] {
47dcf5fc27 2019-05-01  146: 		if {$file in {. ..}} {
47dcf5fc27 2019-05-01  147: 			continue
47dcf5fc27 2019-05-01  148: 		}
47dcf5fc27 2019-05-01  149: 
47dcf5fc27 2019-05-01  150: 		set inputFile [file join $workingDirectory $file]
d99958bdd3 2019-05-03  151: 		set outputFile [file join $outputDirectory [encoding convertto utf-8 $file]]
47dcf5fc27 2019-05-01  152: 
47dcf5fc27 2019-05-01  153: 		unset -nocomplain fileInfo
47dcf5fc27 2019-05-01  154: 		catch {
47dcf5fc27 2019-05-01  155: 			file lstat $inputFile fileInfo
47dcf5fc27 2019-05-01  156: 		}
47dcf5fc27 2019-05-01  157: 		if {![info exists fileInfo]} {
47dcf5fc27 2019-05-01  158: 			puts stderr "warning: Unable to access $inputFile, skipping"
47dcf5fc27 2019-05-01  159: 		}
32b55a907b 2019-05-02  160: 		
32b55a907b 2019-05-02  161: 		lappend children [file tail $file]
47dcf5fc27 2019-05-01  162: 
47dcf5fc27 2019-05-01  163: 		if {$fileInfo(type) eq "directory"} {
47dcf5fc27 2019-05-01  164: 			lappend subDirectories $outputFile
32b55a907b 2019-05-02  165: 			continue
47dcf5fc27 2019-05-01  166: 		}
47dcf5fc27 2019-05-01  167: 
47dcf5fc27 2019-05-01  168: 		processFile $fsName $inputFile $outputFile [array get fileInfo]
47dcf5fc27 2019-05-01  169: 		lappend outputFiles $outputFile
47dcf5fc27 2019-05-01  170: 	}
47dcf5fc27 2019-05-01  171: 
47dcf5fc27 2019-05-01  172: 	foreach subDirectory $subDirectories {
47dcf5fc27 2019-05-01  173: 		lappend outputFiles {*}[processDirectory $fsName $directory $subDirectory]
47dcf5fc27 2019-05-01  174: 	}
32b55a907b 2019-05-02  175: 	
32b55a907b 2019-05-02  176: 	set inputFile $directory
32b55a907b 2019-05-02  177: 	set outputFile $outputDirectory
32b55a907b 2019-05-02  178: 	unset -nocomplain fileInfo
32b55a907b 2019-05-02  179: 	file stat $inputFile fileInfo
32b55a907b 2019-05-02  180: 	set fileInfo(children) $children
32b55a907b 2019-05-02  181: 
32b55a907b 2019-05-02  182: 	processFile $fsName $inputFile $outputFile [array get fileInfo]
32b55a907b 2019-05-02  183: 	lappend outputFiles $outputFile
47dcf5fc27 2019-05-01  184: 
47dcf5fc27 2019-05-01  185: 	if {$isTopLevel} {
47dcf5fc27 2019-05-01  186: 		puts "\};"
47dcf5fc27 2019-05-01  187: 	}
47dcf5fc27 2019-05-01  188: 
47dcf5fc27 2019-05-01  189: 	return $outputFiles
47dcf5fc27 2019-05-01  190: }
47dcf5fc27 2019-05-01  191: 
47dcf5fc27 2019-05-01  192: proc ::xvfs::main {argv} {
47dcf5fc27 2019-05-01  193: 	# Main entry point
47dcf5fc27 2019-05-01  194: 	## 1. Parse arguments
47dcf5fc27 2019-05-01  195: 	if {[llength $argv] % 2 != 0} {
47dcf5fc27 2019-05-01  196: 		lappend argv ""
47dcf5fc27 2019-05-01  197: 	}
47dcf5fc27 2019-05-01  198: 
47dcf5fc27 2019-05-01  199: 	foreach {arg val} $argv {
47dcf5fc27 2019-05-01  200: 		switch -exact -- $arg {
47dcf5fc27 2019-05-01  201: 			"--help" {
47dcf5fc27 2019-05-01  202: 				printHelp stdout
47dcf5fc27 2019-05-01  203: 				exit 0
47dcf5fc27 2019-05-01  204: 			}
47dcf5fc27 2019-05-01  205: 			"--directory" {
47dcf5fc27 2019-05-01  206: 				set rootDirectory $val
47dcf5fc27 2019-05-01  207: 			}
47dcf5fc27 2019-05-01  208: 			"--name" {
47dcf5fc27 2019-05-01  209: 				set fsName $val
47dcf5fc27 2019-05-01  210: 			}
47dcf5fc27 2019-05-01  211: 			default {
47dcf5fc27 2019-05-01  212: 				printHelp stderr [list "Invalid option: $arg $val"]
47dcf5fc27 2019-05-01  213: 				exit 1
47dcf5fc27 2019-05-01  214: 			}
47dcf5fc27 2019-05-01  215: 		}
47dcf5fc27 2019-05-01  216: 	}
47dcf5fc27 2019-05-01  217: 
47dcf5fc27 2019-05-01  218: 	## 2. Validate arguments
47dcf5fc27 2019-05-01  219: 	set errors [list]
47dcf5fc27 2019-05-01  220: 	if {![info exists rootDirectory]} {
47dcf5fc27 2019-05-01  221: 		lappend errors "--directory must be specified"
47dcf5fc27 2019-05-01  222: 	}
47dcf5fc27 2019-05-01  223: 	if {![info exists fsName]} {
47dcf5fc27 2019-05-01  224: 		lappend errors "--name must be specified"
47dcf5fc27 2019-05-01  225: 	}
47dcf5fc27 2019-05-01  226: 
47dcf5fc27 2019-05-01  227: 	if {[llength $errors] != 0} {
47dcf5fc27 2019-05-01  228: 		printHelp stderr $errors
47dcf5fc27 2019-05-01  229: 		exit 1
47dcf5fc27 2019-05-01  230: 	}
47dcf5fc27 2019-05-01  231: 
47dcf5fc27 2019-05-01  232: 	## 3. Start processing directory and producing initial output
32b55a907b 2019-05-02  233: 	set ::xvfs::outputFiles [processDirectory $fsName $rootDirectory]
47dcf5fc27 2019-05-01  234: 
47dcf5fc27 2019-05-01  235: 	set ::xvfs::fsName $fsName
47dcf5fc27 2019-05-01  236: 	set ::xvfs::rootDirectory $rootDirectory
47dcf5fc27 2019-05-01  237: }
47dcf5fc27 2019-05-01  238: 
47dcf5fc27 2019-05-01  239: package provide xvfs 1