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#! /usr/bin/env tclsh

if {[llength $argv] != 2} {
	puts stderr "Usage: kitdll <hashkey> <startdir>"

	exit 1
}

set hashkey [lindex $argv 0]
set startdir [lindex $argv 1]




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#! /usr/bin/env tclsh

if {[llength $argv] != 2} {
	puts stderr "Usage: dir2c.tcl <hashkey> <startdir>"

	exit 1
}

set hashkey [lindex $argv 0]
set startdir [lindex $argv 1]

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	set ret "\"$ret\""

	return $ret
}

# This function must be kept in-sync with the generated C function below
proc kitdll_hash {path} {
	set h 0
	set g 0

	for {set idx 0} {$idx < [string length $path]} {incr idx} {
		binary scan [string index $path $idx] H* char
		set char "0x$char"








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	set ret "\"$ret\""

	return $ret
}

# This function must be kept in-sync with the generated C function below
proc cvfs_hash {path} {
	set h 0
	set g 0

	for {set idx 0} {$idx < [string length $path]} {incr idx} {
		binary scan [string index $path $idx] H* char
		set char "0x$char"

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# Generate list of files to include in output
set files [recursive_glob $startdir]

# Insert dummy entry cooresponding to C dummy entry
set files [linsert $files 0 "__DUMMY__"]

# Produce C89 compatible header
set cpp_tag "KITDLL_[string toupper $hashkey]"
set code_tag "kitdll_[string tolower $hashkey]"
set hashkey [string tolower $hashkey]

puts "#ifndef $cpp_tag"
puts "#  define $cpp_tag 1"
puts {
#  ifdef HAVE_STDC
#    ifndef HAVE_UNISTD_H
#      define HAVE_UNISTD_H 1
#    endif
#    ifndef HAVE_STRING_H
#      define HAVE_STRING_H 1
#    endif
#  endif
#  ifdef HAVE_UNISTD_H
#    include <unistd.h>
#  endif
#  ifdef HAVE_STRING_H
#    include <string.h>
#  endif

#  ifndef LOADED_KITDLL_COMMON
#    define LOADED_KITDLL_COMMON 1

typedef enum {
	KITDLL_FILETYPE_FILE,
	KITDLL_FILETYPE_DIR
} kitdll_filetype_t;

struct kitdll_data {
	const char *             name;
	unsigned long            index;
	unsigned long            size;
	kitdll_filetype_t        type;
	const unsigned char *    data;
};

static unsigned long kitdll_hash(const unsigned char *path) {
	unsigned long i, h = 0, g = 0;

	for (i = 0; path[i]; i++) {
		h = (h << 4) + path[i];
		g = h & 0xf0000000;
		if (g) {
			h ^= (g >> 24);
		}
		h &= ((~g) & 0xffffffffLU);
	}
        
        return(h);
}

#  endif /* !LOADED_KITDLL_COMMON */}
puts ""

puts "static struct kitdll_data ${code_tag}_data\[\] = {"
puts "\t{"
puts "\t\t.name  = NULL,"
puts "\t\t.index = 0,"
puts "\t\t.type  = 0,"
puts "\t\t.size  = 0,"
puts "\t\t.data  = NULL,"
puts "\t},"
for {set idx 1} {$idx < [llength $files]} {incr idx} {
	set file [lindex $files $idx]
	set shortfile [shorten_file $startdir $file]

	unset -nocomplain finfo type
	file stat $file finfo

	switch -- $finfo(type) {
		"file" {
			set type "KITDLL_FILETYPE_FILE"
			set size $finfo(size)

			set fd [open $file]
			fconfigure $fd -translation binary
			set data [read $fd]
			close $fd

			set data "(unsigned char *) [stringify $data]"
		}
		"directory" {
			set type "KITDLL_FILETYPE_DIR"
			set data "NULL"
			set size 0
		}
	}

	puts "\t{"
	puts "\t\t.name  = \"$shortfile\","
	puts "\t\t.index = $idx,"
	puts "\t\t.type  = $type,"
	puts "\t\t.size  = $size,"
	puts "\t\t.data  = $data,"
	puts "\t},"
}
puts "};"
puts ""

puts "static unsigned long ${code_tag}_lookup_index(const char *path) {"
puts "\tswitch (kitdll_hash((unsigned char *) path)) {"

for {set idx 1} {$idx < [llength $files]} {incr idx} {
	set file [lindex $files $idx]
	set shortfile [shorten_file $startdir $file]
	set hash [kitdll_hash $shortfile]

	lappend indexes_per_hash($hash) [list $shortfile $idx]
}

foreach {hash idx_list} [array get indexes_per_hash] {
	puts "\t\tcase $hash:"








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# Generate list of files to include in output
set files [recursive_glob $startdir]

# Insert dummy entry cooresponding to C dummy entry
set files [linsert $files 0 "__DUMMY__"]

# Produce C89 compatible header
set cpp_tag "CVFS_[string toupper $hashkey]"
set code_tag "cvfs_[string tolower $hashkey]"
set hashkey [string tolower $hashkey]

puts "#ifndef $cpp_tag"
puts "#  define $cpp_tag 1"
puts {
#  ifdef HAVE_STDC
#    ifndef HAVE_UNISTD_H
#      define HAVE_UNISTD_H 1
#    endif
#    ifndef HAVE_STRING_H
#      define HAVE_STRING_H 1
#    endif
#  endif
#  ifdef HAVE_UNISTD_H
#    include <unistd.h>
#  endif
#  ifdef HAVE_STRING_H
#    include <string.h>
#  endif

#  ifndef LOADED_CVFS_COMMON
#    define LOADED_CVFS_COMMON 1

typedef enum {
	CVFS_FILETYPE_FILE,
	CVFS_FILETYPE_DIR
} cvfs_filetype_t;

struct cvfs_data {
	const char *             name;
	unsigned long            index;
	unsigned long            size;
	cvfs_filetype_t          type;
	const unsigned char *    data;
};

static unsigned long cvfs_hash(const unsigned char *path) {
	unsigned long i, h = 0, g = 0;

	for (i = 0; path[i]; i++) {
		h = (h << 4) + path[i];
		g = h & 0xf0000000;
		if (g) {
			h ^= (g >> 24);
		}
		h &= ((~g) & 0xffffffffLU);
	}
        
        return(h);
}

#  endif /* !LOADED_CVFS_COMMON */}
puts ""

puts "static struct cvfs_data ${code_tag}_data\[\] = {"
puts "\t{"
puts "\t\t.name  = NULL,"
puts "\t\t.index = 0,"
puts "\t\t.type  = 0,"
puts "\t\t.size  = 0,"
puts "\t\t.data  = NULL,"
puts "\t},"
for {set idx 1} {$idx < [llength $files]} {incr idx} {
	set file [lindex $files $idx]
	set shortfile [shorten_file $startdir $file]

	unset -nocomplain finfo type
	file stat $file finfo

	switch -- $finfo(type) {
		"file" {
			set type "CVFS_FILETYPE_FILE"
			set size $finfo(size)

			set fd [open $file]
			fconfigure $fd -translation binary
			set data [read $fd]
			close $fd

			set data "(unsigned char *) [stringify $data]"
		}
		"directory" {
			set type "CVFS_FILETYPE_DIR"
			set data "NULL"
			set size 0
		}
	}

	puts "\t{"
	puts "\t\t.name  = \"$shortfile\","
	puts "\t\t.index = $idx,"
	puts "\t\t.type  = $type,"
	puts "\t\t.size  = $size,"
	puts "\t\t.data  = $data,"
	puts "\t},"
}
puts "};"
puts ""

puts "static unsigned long ${code_tag}_lookup_index(const char *path) {"
puts "\tswitch (cvfs_hash((unsigned char *) path)) {"

for {set idx 1} {$idx < [llength $files]} {incr idx} {
	set file [lindex $files $idx]
	set shortfile [shorten_file $startdir $file]
	set hash [cvfs_hash $shortfile]

	lappend indexes_per_hash($hash) [list $shortfile $idx]
}

foreach {hash idx_list} [array get indexes_per_hash] {
	puts "\t\tcase $hash:"

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}

puts "\t}"
puts "\treturn(0);"
puts "}"
puts ""

puts "static struct kitdll_data *${code_tag}_getData(const char *path, unsigned long index) {"
puts "\tif (path != NULL) {"
puts "\t\tindex = ${code_tag}_lookup_index(path);"
puts "\t}"
puts ""
puts "\tif (index == 0) {"
puts "\t\treturn(NULL);"
puts "\t}"







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}

puts "\t}"
puts "\treturn(0);"
puts "}"
puts ""

puts "static struct cvfs_data *${code_tag}_getData(const char *path, unsigned long index) {"
puts "\tif (path != NULL) {"
puts "\t\tindex = ${code_tag}_lookup_index(path);"
puts "\t}"
puts ""
puts "\tif (index == 0) {"
puts "\t\treturn(NULL);"
puts "\t}"
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puts "\tunsigned long num_children = 0;"
puts ""
puts "\tindex = ${code_tag}_lookup_index(path);"
puts "\tif (index == 0) {"
puts "\t\treturn(0);"
puts "\t}"
puts ""
puts "\tif (${code_tag}_data\[index\].type != KITDLL_FILETYPE_DIR) {"
puts "\t\treturn(0);"
puts "\t}"
puts ""
puts "\tif (strcmp(path, ${code_tag}_data\[index\].name) != 0) {"
puts "\t\treturn(0);"
puts "\t}"
puts ""







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puts "\tunsigned long num_children = 0;"
puts ""
puts "\tindex = ${code_tag}_lookup_index(path);"
puts "\tif (index == 0) {"
puts "\t\treturn(0);"
puts "\t}"
puts ""
puts "\tif (${code_tag}_data\[index\].type != CVFS_FILETYPE_DIR) {"
puts "\t\treturn(0);"
puts "\t}"
puts ""
puts "\tif (strcmp(path, ${code_tag}_data\[index\].name) != 0) {"
puts "\t\treturn(0);"
puts "\t}"
puts ""
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puts "\t}"
puts ""
puts "\treturn(num_children);"
puts "}"
puts ""

puts "#  ifdef KITDLL_MAKE_LOADABLE"

set fd [open "vfs_kitdll_data.c"]
puts [read $fd]
close $fd


puts "static cmd_getData_t *getCmdData(const char *hashkey) {"
puts "\treturn(${code_tag}_getData);"
puts "}"
puts ""
puts "static cmd_getChildren_t *getCmdChildren(const char *hashkey) {"
puts "\treturn(${code_tag}_getChildren);"
puts "}"
puts ""

puts "int Vfs_kitdll_data_${hashkey}_Init(Tcl_Interp *interp) {"
puts "\tTcl_Command tclCreatComm_ret;"
puts "\tint tclPkgProv_ret;"
puts ""





puts "\ttclCreatComm_ret = Tcl_CreateObjCommand(interp, \"::vfs::kitdll::data::${hashkey}::getMetadata\", getMetadata, NULL, NULL);"
puts "\tif (!tclCreatComm_ret) {"
puts "\t\treturn(TCL_ERROR);"
puts "\t}"
puts ""
puts "\ttclCreatComm_ret = Tcl_CreateObjCommand(interp, \"::vfs::kitdll::data::${hashkey}::getData\", getData, NULL, NULL);"
puts "\tif (!tclCreatComm_ret) {"
puts "\t\treturn(TCL_ERROR);"
puts "\t}"
puts ""
puts "\ttclCreatComm_ret = Tcl_CreateObjCommand(interp, \"::vfs::kitdll::data::${hashkey}::getChildren\", getChildren, NULL, NULL);"
puts "\tif (!tclCreatComm_ret) {"
puts "\t\treturn(TCL_ERROR);"
puts "\t}"
puts ""
puts "\ttclPkgProv_ret = Tcl_PkgProvide(interp, \"vfs::kitdll::data::${hashkey}\", \"1.0\");"
puts ""
puts "\treturn(tclPkgProv_ret);"
puts "\t}"
puts "#  endif /* KITDLL_MAKE_LOADABLE */"

puts "#endif /* !$cpp_tag */"







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puts "\t}"
puts ""
puts "\treturn(num_children);"
puts "}"
puts ""

puts "#  ifdef CVFS_MAKE_LOADABLE"

set fd [open "cvfs_data.c"]
puts [read $fd]
close $fd


puts "static cmd_getData_t *getCmdData(const char *hashkey) {"
puts "\treturn(${code_tag}_getData);"
puts "}"
puts ""
puts "static cmd_getChildren_t *getCmdChildren(const char *hashkey) {"
puts "\treturn(${code_tag}_getChildren);"
puts "}"
puts ""

puts "int Cvfs_data_${hashkey}_Init(Tcl_Interp *interp) {"
puts "\tTcl_Command tclCreatComm_ret;"
puts "\tint tclPkgProv_ret;"
puts ""
puts "\ttclCreatComm_ret = Tcl_CreateObjCommand(interp, \"::vfs::cvfs::data::${hashkey}::getMetadata\", getMetadata, NULL, NULL);"
puts "\tif (!tclCreatComm_ret) {"
puts "\t\treturn(TCL_ERROR);"
puts "\t}"
puts ""
puts "\ttclCreatComm_ret = Tcl_CreateObjCommand(interp, \"::vfs::cvfs::data::${hashkey}::getData\", getData, NULL, NULL);"
puts "\tif (!tclCreatComm_ret) {"
puts "\t\treturn(TCL_ERROR);"
puts "\t}"
puts ""
puts "\ttclCreatComm_ret = Tcl_CreateObjCommand(interp, \"::vfs::cvfs::data::${hashkey}::getChildren\", getChildren, NULL, NULL);"
puts "\tif (!tclCreatComm_ret) {"
puts "\t\treturn(TCL_ERROR);"
puts "\t}"
puts ""





puts "\ttclPkgProv_ret = Tcl_PkgProvide(interp, \"vfs::cvfs::data::${hashkey}\", \"1.0\");"
puts ""
puts "\treturn(tclPkgProv_ret);"
puts "\t}"
puts "#  endif /* CVFS_MAKE_LOADABLE */"

puts "#endif /* !$cpp_tag */"