#==============================================================================
#
# mkdepend : generate dependency information from C/C++ files
#
# Copyright (c) 1998, Nat Pryce
#
# Permission is hereby granted, without written agreement and without
# license or royalty fees, to use, copy, modify, and distribute this
# software and its documentation for any purpose, provided that the
# above copyright notice and the following two paragraphs appear in
# all copies of this software.
#
# IN NO EVENT SHALL THE AUTHOR BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
# SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OF
# THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE AUTHOR HAS BEEN ADVISED
# OF THE POSSIBILITY OF SUCH DAMAGE.
#
# THE AUTHOR SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
# PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS"
# BASIS, AND THE AUTHOR HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT,
# UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
#==============================================================================
#
# Modified heavily by David Gravereaux <[email protected]> about 9/17/2006.
# Original can be found @
# http://web.archive.org/web/20070616205924/http://www.doc.ic.ac.uk/~np2/software/mkdepend.html
#
#==============================================================================
# RCS: @(#) $Id: mkdepend.tcl,v 1.6 2007/12/13 15:28:40 dgp Exp $
#==============================================================================
array set mode_data {}
set mode_data(vc32) {cl -nologo -E}
set source_extensions [list .c .cpp .cxx .cc]
set excludes [list]
if [info exists env(INCLUDE)] {
set rawExcludes [split [string trim $env(INCLUDE) ";"] ";"]
foreach exclude $rawExcludes {
lappend excludes [file normalize $exclude]
}
}
# openOutput --
#
# Opens the output file.
#
# Arguments:
# file The file to open
#
# Results:
# None.
proc openOutput {file} {
global output
set output [open $file w]
puts $output "# Automatically generated at [clock format [clock seconds] -format "%Y-%m-%dT%H:%M:%S"] by [info script]\n"
}
# closeOutput --
#
# Closes output file.
#
# Arguments:
# none
#
# Results:
# None.
proc closeOutput {} {
global output
if {[string match stdout $output] != 0} {
close $output
}
}
# readDepends --
#
# Read off CCP pipe for #line references.
#
# Arguments:
# chan The pipe channel we are reading in.
#
# Results:
# Raw dependency list pairs.
proc readDepends {chan} {
set line ""
array set depends {}
while {[gets $chan line] != -1} {
if {[regexp {^#line [0-9]+ \"(.*)\"$} $line dummy fname] != 0} {
set fname [file normalize $fname]
if {![info exists target]} {
# this is ourself
set target $fname
puts stderr "processing [file tail $fname]"
} else {
# don't include ourselves as a dependency of ourself.
if {![string compare $fname $target]} {continue}
# store in an array so multiple occurances are not counted.
set depends($target|$fname) ""
}
}
}
set result {}
foreach n [array names depends] {
set pair [split $n "|"]
lappend result [list [lindex $pair 0] [lindex $pair 1]]
}
return $result
}
# writeDepends --
#
# Write the processed list out to the file.
#
# Arguments:
# out The channel to write to.
# depends The list of dependency pairs
#
# Results:
# None.
proc writeDepends {out depends} {
foreach pair $depends {
puts $out "[lindex $pair 0] : \\\n\t[join [lindex $pair 1] " \\\n\t"]"
}
}
# stringStartsWith --
#
# Compares second string to the beginning of the first.
#
# Arguments:
# str The string to test the beginning of.
# prefix The string to test against
#
# Results:
# the result of the comparison.
proc stringStartsWith {str prefix} {
set front [string range $str 0 [expr {[string length $prefix] - 1}]]
return [expr {[string compare [string tolower $prefix] \
[string tolower $front]] == 0}]
}
# filterExcludes --
#
# Remove non-project header files.
#
# Arguments:
# depends List of dependency pairs.
# excludes List of directories that should be removed
#
# Results:
# the processed dependency list.
proc filterExcludes {depends excludes} {
set filtered {}
foreach pair $depends {
set excluded 0
set file [lindex $pair 1]
foreach dir $excludes {
if [stringStartsWith $file $dir] {
set excluded 1
break;
}
}
if {!$excluded} {
lappend filtered $pair
}
}
return $filtered
}
# replacePrefix --
#
# Take the normalized search path and put back the
# macro name for it.
#
# Arguments:
# file filename.
#
# Results:
# filename properly replaced with macro for it.
proc replacePrefix {file} {
global srcPathList srcPathReplaceList
foreach was $srcPathList is $srcPathReplaceList {
regsub $was $file $is file
}
return $file
}
# rebaseFiles --
#
# Replaces normalized paths with original macro names.
#
# Arguments:
# depends Dependency pair list.
#
# Results:
# The processed dependency pair list.
proc rebaseFiles {depends} {
set rebased {}
foreach pair $depends {
lappend rebased [list \
[replacePrefix [lindex $pair 0]] \
[replacePrefix [lindex $pair 1]]]
}
return $rebased
}
# compressDeps --
#
# Compresses same named tragets into one pair with
# multiple deps.
#
# Arguments:
# depends Dependency pair list.
#
# Results:
# The processed list.
proc compressDeps {depends} {
array set compressed [list]
foreach pair $depends {
lappend compressed([lindex $pair 0]) [lindex $pair 1]
}
set result [list]
foreach n [array names compressed] {
lappend result [list $n [lsort $compressed($n)]]
}
return $result
}
# addSearchPath --
#
# Adds a new set of path and replacement string to the global list.
#
# Arguments:
# newPathInfo comma seperated path and replacement string
#
# Results:
# None.
proc addSearchPath {newPathInfo} {
global srcPathList srcPathReplaceList
set infoList [split $newPathInfo ,]
lappend srcPathList [file normalize [lindex $infoList 0]]
lappend srcPathReplaceList [lindex $infoList 1]
}
# displayUsage --
#
# Displays usage to stderr
#
# Arguments:
# none.
#
# Results:
# None.
proc displayUsage {} {
puts stderr "mkdepend.tcl \[options\] genericDir,macroName compatDir,macroName platformDir,macroName"
}
# readInputListFile --
#
# Open and read the object file list.
#
# Arguments:
# objectListFile - name of the file to open.
#
# Results:
# None.
proc readInputListFile {objectListFile} {
global srcFileList srcPathList source_extensions
set f [open $objectListFile r]
set fl [read $f]
close $f
# fix native path seperator so it isn't treated as an escape.
regsub -all {\\} $fl {/} fl
# Treat the string as a list so filenames between double quotes are
# treated as list elements.
foreach fname $fl {
# Compiled .res resource files should be ignored.
if {[file extension $fname] ne ".obj"} {continue}
# Just filename without path or extension because the path is
# the build directory, not where the source files are located.
set baseName [file rootname [file tail $fname]]
set found 0
foreach path $srcPathList {
foreach ext $source_extensions {
set test [file join $path ${baseName}${ext}]
if {[file exist $test]} {
lappend srcFileList $test
set found 1
break
}
}
if {$found} break
}
}
}
# main --
#
# The main procedure of this script.
#
# Arguments:
# none.
#
# Results:
# None.
proc main {} {
global argc argv mode mode_data srcFileList srcPathList excludes
global remove_prefix target_prefix output env
set srcPathList [list]
set srcFileList [list]
if {$argc == 1} {displayUsage}
# Parse mkdepend input
for {set i 0} {$i < [llength $argv]} {incr i} {
switch -glob -- [set arg [lindex $argv $i]] {
-vc32 {
set mode vc32
}
-bc32 {
set mode bc32
}
-wc32 {
set mode wc32
}
-lc32 {
set mode lc32
}
-mgw32 {
set mode mgw32
}
-passthru:* {
set passthru [string range $arg 10 end]
regsub -all {"} $passthru {\"} passthru
regsub -all {\\} $passthru {/} passthru
}
-out:* {
openOutput [string range $arg 5 end]
}
@* {
set objfile [string range $arg 1 end]
regsub -all {\\} $objfile {/} objfile
readInputListFile $objfile
}
-? - -help - --help {
displayUsage
exit 1
}
default {
if {![info exist mode]} {
puts stderr "mode not set"
displayUsage
}
addSearchPath $arg
}
}
}
# Execute the CPP command and parse output
foreach srcFile $srcFileList {
if {[catch {
set command "$mode_data($mode) $passthru \"$srcFile\""
set input [open |$command r]
set depends [readDepends $input]
set status [catch {close $input} result]
if {$status == 1 && [lindex $::errorCode 0] eq "CHILDSTATUS"} {
foreach { - pid code } $::errorCode break
if {$code == 2} {
# preprocessor died a cruel death.
error $result
}
}
} err]} {
puts stderr "error ocurred: $err\n"
continue
}
set depends [filterExcludes $depends $excludes]
set depends [rebaseFiles $depends]
set depends [compressDeps $depends]
writeDepends $output $depends
}
closeOutput
}
# kick it up.
main
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