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|
#!/usr/bin/env tclsh
set prog modpkg
set pbfields {pkgname pkgver pkgrel pkgdesc pkgbase
epoch url license install changelog source noextract
md5sums sha1sums sha256sums sha384sums sha512sums
groups arch backup
depends makedepends checkdepends optdepends
conflicts provides replaces
options
dir ver}
set pbfuncs {build check package}
set dotfuncs {pre_install post_install
pre_upgrade post_upgrade
pre_remove post_remove}
proc scanfields {inchan} {
global pkgdata
set fld {}
while {[gets $inchan line] >= 0} {
if {$fld eq {}} {
# Skip extra (>1) empty lines.
if {$line ne {}} {
lassign [list $line] fld vals
}
} elseif {$line eq {}} {
set pkgdata($fld) $vals
lassign {} fld vals
} else {
lappend vals $line
}
}
if {$fld != {}} { set pkgdata($fld) $vals }
}
proc printfields {outchan} {
global pkgdata
foreach {fld vals} [array get pkgdata] {
puts $outchan [join [concat $fld $vals] "\n"]
puts ""
}
}
if {$argc != 1} {
puts stderr "usage: $prog \[path to modifier script\] < PKGDATA > PKGDATA.new"
exit 2
}
set mod [lindex $argv 0]
if {! [file exists $mod]} {
puts stderr "$prog: error: mod file does not exist"
exit 1
}
set modch [open $mod]
scanfields stdin
set modi [interp create]
foreach {name vals} [array get pkgdata] {
if {$name in $pbfields} {
$modi eval [list set $name $vals]
}
}
$modi eval [list set pbfuncs $pbfuncs]
$modi eval [list set dotfuncs $dotfuncs]
$modi eval {
proc trimbash {code} {
set code [string trim $code]
set lines [split $code "\n"]
set code {}
for {set i 0} {$i < [llength $lines]} {incr i} {
set ln " [string trim [lindex $lines $i]]"
set code "$code$ln\n"
}
return $code
}
proc initfunc {file func} {
if {! [file exists PKGTREE/$file/$func]} {
exec putpkgtree $file $func beg << "${func}()\n(\n"
exec putpkgtree $file $func end << ")\n"
}
}
proc initdotfunc {func} {
global pkgname source
if {! [file exists PKGTREE/$pkgname.install]} {
lappend source "$pkgname.install"
}
initfunc $pkgname.install $func
}
proc fput {name code section} {
global dotfuncs pbfuncs pkgname
if {$name in $dotfuncs} {
initdotfunc $name
set file $pkgname.install
} elseif {$name in $pbfuncs} {
initfunc PKGBUILD $name
set file PKGBUILD
} else {
puts stderr "$prog: error: $name is not a known func"
exit 2
}
set code [trimbash $code]
exec putpkgtree $file $name $section << $code
}
proc fappend {name code} {
fput $name $code body
}
proc fprepend {name code} {
fput $name $code beg
}
proc move {srcname pats destname} {
upvar #0 $srcname src $destname dest
foreach pat $pats {
set idx [lsearch -glob $src $pat*]
if { $idx == -1 } {
error "$pat was not found in $srcname"
}
lappend dest [lindex $src $idx]
set src [lreplace $src $idx $idx]
}
}
proc splitdep {dep} {
set re {(?x) ^ ([^<>=]+) ([<>]=?.+)? $}
if {[regexp $re $dep -> name cmp]} {
return [list $name $cmp]
} else {
error "Invalid dependency string: $dep"
}
}
proc setdep {type newdep} {
if {! [string match *depends $type]} {
error "setdep can only be used with depends fields"
}
upvar #0 $type deps
if {! [info exists deps]} {
error "Unknown dependency field: $type"
}
lassign [splitdep $newdep] depname newcmp
for {set i 0} {$i < [llength $deps]} {incr i} {
set dep [lindex $deps $i]
lassign [splitdep $dep] name cmp
if {$name eq $depname} {
set deps [lreplace $deps $i $i $name$newcmp]
return
}
}
error "$depname was not found in $type"
}
}
$modi eval [read $modch]
foreach name $pbfields {
if {[$modi eval info exists $name]} {
set pkgdata($name) [$modi eval set $name]
}
}
if {[info exists pkgdata(customvars)]} {
foreach cvar $pkgdata(customvars) {
set pkgdata($cvar) [$modi eval set $cvar]
}
}
printfields stdout
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