From 97074d779fffceae5ff9112307a29d7690bac432 Mon Sep 17 00:00:00 2001
From: Poul-Henning Kamp <phk@FreeBSD.org>
Date: Mon, 20 Feb 1995 03:03:02 +0000
Subject: [PATCH] The new and improved mkCTM.  Learning from this experience it
 has been improved on a couple of accounts.  Amongst these are "damage
 control" more than 100 files removed and it will bail out...

---
 usr.sbin/ctm/mkCTM/ctm_conf.cvs-cur   |  11 +-
 usr.sbin/ctm/mkCTM/ctm_conf.ports-cur |   6 +
 usr.sbin/ctm/mkCTM/ctm_conf.src-cur   |  12 +-
 usr.sbin/ctm/mkCTM/mkCTM              | 449 ++++++++++++++++----------
 4 files changed, 288 insertions(+), 190 deletions(-)
 create mode 100644 usr.sbin/ctm/mkCTM/ctm_conf.ports-cur

diff --git a/usr.sbin/ctm/mkCTM/ctm_conf.cvs-cur b/usr.sbin/ctm/mkCTM/ctm_conf.cvs-cur
index b6e54bb03372..7453435df9f4 100644
--- a/usr.sbin/ctm/mkCTM/ctm_conf.cvs-cur
+++ b/usr.sbin/ctm/mkCTM/ctm_conf.cvs-cur
@@ -1,11 +1,6 @@
 #!/usr/local/bin/tclsh
 
 set CTMname	cvs-cur
-set CTMref	/u1/CVS-FreeBSD
-set CTMdest	/u4/ftp/pub/CTM
-set CTMprefix	.
-set CTMdont	{.*\.core$|^/CVSROOT/history.*$|^/src/secure|^/src/eBones|^/sup/}
-
-set CTMcopy	/u1/CTM/$CTMname
-set CTMtmp	/u1/CTM/tmp/_tmp_$CTMname
-set CTMdate	[exec date -u +%Y%m%d%H%M%SZ]
+set CTMref	/home/ncvs
+set CTMdest	$CTMSW/../CTM-priv/$CTMname
+set CTMdont	{\.core$|^/CVSROOT/history.*$|^/src/secure|^/src/eBones|^/src/kerberosIV}
diff --git a/usr.sbin/ctm/mkCTM/ctm_conf.ports-cur b/usr.sbin/ctm/mkCTM/ctm_conf.ports-cur
new file mode 100644
index 000000000000..46843a9e5f7b
--- /dev/null
+++ b/usr.sbin/ctm/mkCTM/ctm_conf.ports-cur
@@ -0,0 +1,6 @@
+#!/usr/local/bin/tclsh
+
+set CTMname	ports-cur
+set CTMref	/usr/ports
+set CTMdont	{\.core$|/CVS$|/CVS/|^/distfiles}
+
diff --git a/usr.sbin/ctm/mkCTM/ctm_conf.src-cur b/usr.sbin/ctm/mkCTM/ctm_conf.src-cur
index 8efd6a065147..e928ad3a4eae 100644
--- a/usr.sbin/ctm/mkCTM/ctm_conf.src-cur
+++ b/usr.sbin/ctm/mkCTM/ctm_conf.src-cur
@@ -1,12 +1,6 @@
 #!/usr/local/bin/tclsh
 
 set CTMname	src-cur
-set CTMref	/u4/ftp/pub/FreeBSD/SRC-current/src
-set CTMdest	/u4/ftp/pub/CTM
-set CTMprefix	.
-set CTMdont	{.*\.core$|/CVS$|/CVS/Entries$|/CVS/Repository$|^secure|^eBones}
-set CTMmail	ctm-src-cur@freebsd.org
-
-set CTMcopy	/u1/CTM/$CTMname
-set CTMtmp	/u1/CTM/tmp/_tmp_$CTMname
-set CTMdate	[exec date -u +%Y%m%d%H%M%SZ]
+set CTMref	/usr/src
+set CTMdont	{\.core$|/CVS$|/CVS/|^/secure|^/eBones}
+#set CTMmail	ctm-src-cur@freebsd.org
diff --git a/usr.sbin/ctm/mkCTM/mkCTM b/usr.sbin/ctm/mkCTM/mkCTM
index 7001046149f7..885498e1089b 100644
--- a/usr.sbin/ctm/mkCTM/mkCTM
+++ b/usr.sbin/ctm/mkCTM/mkCTM
@@ -1,216 +1,319 @@
-#!/usr/local/bin/tclsh
+#!/usr/local/bin/tcl
 
-set CTMignoreCVS 0
-set CTMapply 1
-set CTMdont {^///}
-set CTMmail {}
-set CTMsuff {}
-
-source $argv
-
-cd /u1/CTM/SW
-
-set tmp $CTMtmp
-set dd  $CTMdest
-set d1  $CTMcopy
-set d2  $CTMref
-set foo $CTMdate
-set foo $CTMprefix
-set foo $CTMname
-
-if { "$d1" != "" } {
-    ####
-    # Find CTM#
-    for {set i 0} {1} {incr i} {
-	if {[file exists [format "%s/$CTMname.%04d" $dd $i]]} continue
-	if {[file exists [format "%s/$CTMname.%04d.gz" $dd $i]]} continue
-	break
-    }
-    set CTMnbr $i
-
-    set fo [open $d2/.ctm_status w]
-    puts $fo "$CTMname $CTMnbr"
-    close $fo
-
-    puts "Doing CTMname $CTMname CTMnbr $CTMnbr CTMdate $CTMdate"
-
-    exec sh -x -c "rm -f ${tmp}.*" >&@ stdout
-
-    set f1 [open "| ./ctm_scan $d1"]
-    # set this to minus one, to compensate for .ctm_status
-    set changes -1
-} else {
-    set CTMnbr [lindex [exec cat $d2/.ctm_status] 1]
-    puts "Doing CTMname $CTMname CTMnbr $CTMnbr CTMdate $CTMdate"
-    exec sh -x -c "rm -f ${tmp}.*" >&@ stdout
-    set f1 [open /dev/null]
-    set changes 0
-}
-set f2 [open "| ./ctm_scan $d2"]
-
-set fo_del   [open $tmp.del w]
-set fo_rmdir [open $tmp.rmdir w]
-set fo_mkdir [open $tmp.mkdir w]
-set fo_files [open $tmp.files w]
-
-#####
+#############################################################################
+### Add something
+#############################################################################
 # Type Name Mode User Group Barf Size Hash
 
 proc CTMadd {t n m u g b s h} {
-    global fo_files fo_mkdir changes d2
+    global fo_files fo_mkdir changes CTMref
+
     puts stderr "A $b  $t  $n"
+    incr changes
+
     if {$t == "d"} {
 	puts $fo_mkdir "CTMDM $n $u $g $m"
-	incr changes
-	return
+    } elseif {$t == "f"} {
+	puts $fo_files "CTMFM $n $u $g $m $h $s"
+	flush $fo_files
+	exec cat $CTMref/$n >@ $fo_files
+	puts $fo_files ""
+    } else {
+	puts "confused in CTMadd"
+	exit 0
     }
-    puts $fo_files "CTMFM $n $u $g $m $h $s"
-    flush $fo_files
-    exec cat $d2/$n >@ $fo_files
-    puts $fo_files ""
-    incr changes
-    return
 }
+
+#############################################################################
+### Delete something
+#############################################################################
+# Type Name Mode User Group Barf Size Hash
+
 proc CTMdel {t n m u g b s h} {
-    global fo_del fo_rmdir changes
+    global fo_del fo_rmdir changes damage max_damage
+
     puts stderr "D $b  $t  $n"
+    incr damage 
+    incr changes
+
+    if {$damage > $max_damage} {
+	puts "Too much damage"
+	exit 0
+    }
     if {$t == "d"} {
 	puts $fo_rmdir "CTMDR $n"
-	incr changes
-	return
+    } elseif {$t == "f"} {
+	puts $fo_del "CTMFR $n $h"
+    } else {
+	puts "confused in CTMdel"
+	exit 0
     }
-    puts $fo_del "CTMFR $n $h"
-    incr changes
-    return
 }
+
+#############################################################################
+### Change something
+#############################################################################
+# Type Name Mode User Group Barf Size Hash
+
 proc CTMchg {t1 n1 m1 u1 g1 b1 s1 h1 t2 n2 m2 u2 g2 b2 s2 h2} {
-    global fo_files d2 d1 changes
-    if {$t1 == "d" && $t2 == "d"} {
-	return
-    }
-    if {$t1 == "d" || $t2 == "d"} {
+    global fo_files CTMref CTMcopy changes damage CTMscratch
+
+    # Ignore attribute changes for directories
+    if {$t1 == "d" && $t2 == "d"} return
+
+    # turn file into dir or vice versa...
+    if {$t1 != $t2} {
 	CTMdel $t1 $n1 $m1 $u1 $g1 $b1 $s1 $h1
 	CTMadd $t2 $n2 $m2 $u2 $g2 $b2 $s2 $h2
 	return
     }
-    if {"x$h1" == "x$h2" && $s1 == $s2} {
-	return
-        puts stderr "M $b1$b2 $t1$t2 $n1"
-	puts $fo_files "CTMFA $n2 $u2 $g2 $m2 $h2"
-	incr changes
-	return
+
+    # only files allowed past this poing...
+    if {$t1 != "f" && $t2 != "f"} {
+        puts "confused in CTMchg"
+        exit 0
     }
+
+    # Ignore attribute changes for files
+    if {"x$h1" == "x$h2" && $s1 == $s2} return
+
+    if {$s2 == 0} { incr damage }
+    incr changes
+
+    # If diff will deal with it...
     if {$b1 == "0" && $b2 == "0"} {
-	set i [catch "exec diff -n $d1/$n1 $d2/$n2 > tmp" j]
-	set s [file size tmp]
+	set i [catch "exec diff -n $CTMcopy/$n1 $CTMref/$n2 > $CTMscratch" j]
+	set s [file size $CTMscratch]
 	if {$s < $s2} {
 	    puts stderr "E $b1$b2 $t1$t2 $n1"
 	    puts $fo_files "CTMFN $n1 $u2 $g2 $m2 $h1 $h2 $s"
 	    flush $fo_files
-	    exec cat tmp >@ $fo_files
+	    exec cat $CTMscratch >@ $fo_files
 	    puts $fo_files ""
-	    incr changes
 	    return
 	}
-    }
+    } 
     puts stderr "R $b1$b2 $t1$t2 $n1"
     puts $fo_files "CTMFS $n2 $u2 $g2 $m2 $h1 $h2 $s2"
     flush $fo_files
-    exec cat $d2/$n2 >@ $fo_files
+    exec cat $CTMref/$n2 >@ $fo_files
     puts $fo_files ""
-    incr changes
-    return
 }
-#####
-set l1 ""
-set l2 ""
+
+#############################################################################
+### Do we already have this delta ?
+#############################################################################
+
+proc find_delta {nbr} {
+    global CTMname CTMdest
+    if {[file exists [format "%s/$CTMname.%04d" $CTMdest $nbr]]} { return 1 }
+    if {[file exists [format "%s/$CTMname.%04d.gz" $CTMdest $nbr]]} { return 1 }
+    return 0
+}
+
+#############################################################################
+### The top level code...
+#############################################################################
+
+set CTMSW	/home/ctm/SW
+
+cd $CTMSW
+
+# Defaults...
+set CTMapply 1
+set CTMdont {^///}
+set CTMmail {}
+set CTMsuff {}
+set CTMdate     [exec date -u +%Y%m%d%H%M%SZ]
+set CTMtmp  {}
+set CTMcopy  {}
+set CTMdest  {}
+set CTMprefix  .
+set CTMtest 0
+set max_damage 100
+
+set damage 0
+set changes 0
+
+source $argv
+
+if {$CTMtmp == ""} {
+    set CTMtmp $CTMSW/../tmp/${CTMname}_${CTMsuff}
+}
+if {$CTMcopy == ""} {
+    set CTMcopy $CTMSW/../$CTMname
+}
+if {$CTMdest == ""} {
+    set CTMdest $CTMSW/../CTM-pub/$CTMname
+}
+
+set CTMscratch ${CTMtmp}.tmp
 
 while 1 {
+    if { "$CTMcopy" != "" } {
+	set CTMnbr [lindex [exec cat $CTMcopy/.ctm_status] 1]
 
-    if {$l1 == ""} {gets $f1 l1}
-
-    if {$l2 == ""} {gets $f2 l2}
-    
-    if {$l1 == "" && $l2 == ""} break
-
-    set n1 [lindex $l1 1]
-    set n2 [lindex $l2 1]
-
-    #if {[regexp $CTMdont /$n1]} { set l1 "" ; continue }
-    if {[regexp $CTMdont /$n2]} { set l2 "" ; continue }
-
-    # they're all the same...
-    if {$l1 == $l2}  { set l1 "" ; set l2 "" ; continue }
-
-    if {$CTMignoreCVS } {
-	if {[regexp {/CVS/} $l1]} {set l1 ""; continue }
-	if {[regexp {/CVS/} $l2]} {set l2 ""; continue }
-    }
-
-    if {$l1 == "" }   { eval CTMadd $l2 ; set l2 "" ; continue }
-
-    if {$l2 == "" }   { eval CTMdel $l1 ; set l1 "" ; continue }
-
-    # if the name is the same we're safe...
-    if {$n1 == $n2}  { eval CTMchg $l1 $l2 ; set l1 "" ; set l2 "" ; continue }
-
-    # To avoid this anomaly:
-    # A -  d  src/gnu/lib/libreadline/readline/Attic
-    # A 0  f  src/gnu/lib/libreadline/readline/Attic/readline.h,v
-    # A 0  f  src/gnu/lib/libreadline/readline.c,v
-    # D 0  f  src/gnu/lib/libreadline/readline/readline.h,v
-    # D 0  f  src/gnu/lib/libreadline/readline.c,v
-    # we have to make things somewhat complicated...
-
-    # if they have the same number of components...
-    set ll1 [llength [split $n1 /]]
-    set ll2 [llength [split $n2 /]]
-    if {$ll1 == $ll2} {
-	if {$n1 < $n2 } { 
-	    eval CTMdel $l1 ; set l1 "" ; continue 
-	} else {
-	    eval CTMadd $l2 ; set l2 "" ; continue 
+	if {![find_delta $CTMnbr]} {
+	    puts "$CTMname delta $CTMnbr doesn't exist..."
+	    # exit 0
 	}
-    } 
-    if {$ll1 < $ll2} {
-	    eval CTMadd $l2 ; set l2 "" ; continue 
+
+	incr CTMnbr
+
+	if {[find_delta $CTMnbr]} {
+	    puts "$CTMname delta $CTMnbr does already exist..."
+	    exit 0
+	}
+
+	set fo [open $CTMref/.ctm_status w]
+	puts $fo "$CTMname $CTMnbr"
+	close $fo
+	incr changes -1
+
+	set f1 [open "| ./ctm_scan $CTMcopy"]
     } else {
-	    eval CTMdel $l1 ; set l1 "" ; continue 
+	set CTMnbr [lindex [exec cat $CTMref/.ctm_status] 1]
+	set f1 [open /dev/null]
     }
 
-    
+    puts "Doing CTMname $CTMname CTMnbr $CTMnbr CTMdate $CTMdate"
+    flush stdout
+    exec sh -c "rm -f ${CTMtmp}.* ${CTMtmp}:*" >&@ stdout
 
+    set f2 [open "| ./ctm_scan $CTMref"]
+
+    set fo_del   [open $CTMtmp.del w]
+    set fo_rmdir [open $CTMtmp.rmdir w]
+    set fo_mkdir [open $CTMtmp.mkdir w]
+    set fo_files [open $CTMtmp.files w]
+
+    set l1 ""
+    set l2 ""
+
+    while 1 {
+
+	if {$l1 == ""} {gets $f1 l1}
+
+	if {$l2 == ""} {gets $f2 l2}
+	
+	if {$l1 == "" && $l2 == ""} break
+
+	set n1 [lindex $l1 1]
+	set n2 [lindex $l2 1]
+
+	if {[regexp $CTMdont /$n1]} { set l1 "" ; continue }
+	if {[regexp $CTMdont /$n2]} { set l2 "" ; continue }
+
+	# they're all the same...
+	if {$l1 == $l2}  { set l1 "" ; set l2 "" ; continue }
+
+	if {$l1 == "" }   { eval CTMadd $l2 ; set l2 "" ; continue }
+
+	if {$l2 == "" }   { eval CTMdel $l1 ; set l1 "" ; continue }
+
+	# if the name is the same we're safe...
+	if {$n1 == $n2}  { 
+	    eval CTMchg $l1 $l2
+	    set l1 ""
+	    set l2 "" 
+	    continue 
+	}
+
+	# To avoid this anomaly:
+	# A -  d  src/gnu/lib/libreadline/readline/Attic
+	# A 0  f  src/gnu/lib/libreadline/readline/Attic/readline.h,v
+	# A 0  f  src/gnu/lib/libreadline/readline.c,v
+	# D 0  f  src/gnu/lib/libreadline/readline/readline.h,v
+	# D 0  f  src/gnu/lib/libreadline/readline.c,v
+	# we have to make things somewhat complicated...
+
+	# if they have the same number of components...
+	set ll1 [llength [split $n1 /]]
+	set ll2 [llength [split $n2 /]]
+	if {$ll1 == $ll2} {
+	    if {$n1 < $n2 } { 
+		eval CTMdel $l1 ; set l1 "" ; continue 
+	    } else {
+		eval CTMadd $l2 ; set l2 "" ; continue 
+	    }
+	} 
+	if {$ll1 < $ll2} {
+		eval CTMadd $l2 ; set l2 "" ; continue 
+	} else {
+		eval CTMdel $l1 ; set l1 "" ; continue 
+	}
+    }
+
+    close $fo_del
+    close $fo_rmdir
+    close $fo_mkdir
+    close $fo_files
+
+    if {$damage > $max_damage} {
+	puts "Too much damage: $damage deletes"
+	exec sh -c "rm -f ${CTMtmp}.*"
+	exit 0
+    }
+
+    if {!$changes} {
+	puts "no changes"
+	exec sh -c "rm -f ${CTMtmp}.*"
+	exit 0
+    }
+
+    exec echo CTM_BEGIN 2.0 $CTMname $CTMnbr $CTMdate $CTMprefix > $CTMtmp.begin
+
+    puts "Assembling delta"
+    flush stdout
+    set  nm [format "%s.%04d%s" $CTMname $CTMnbr $CTMsuff]
+
+    set fdmd5 [open "|/sbin/md5 >> $CTMtmp.end" w]
+    set fdout [open "| gzip -9 > ${CTMtmp}:${nm}.gz" w]
+
+    foreach i {begin del rmdir mkdir files} {
+	exec cat $CTMtmp.$i >@$fdmd5
+	exec cat $CTMtmp.$i >@$fdout
+    }
+    puts $fdmd5 "CTM_END " nonewline
+    close $fdmd5 ; unset fdmd5
+    puts $fdout "CTM_END " nonewline
+    flush $fdout
+    exec cat $CTMtmp.end >@$fdout
+    close $fdout ; unset fdout
+
+    exec sh -x -c "rm -f ${CTMtmp}.*" >&@ stdout
+
+    if {$CTMtest} {
+	puts "testing, stopping now."
+	exit 0
+    }
+    if {$CTMapply} {
+	    puts "Applying delta"
+	    flush stdout
+	    exec sh -e -x -c "cd $CTMcopy ; $CTMSW/ctm -v -v -v ${CTMtmp}:${nm}.gz" >&@ stdout
+    }
+    puts "Moving delta"
+    flush stdout
+    exec mv ${CTMtmp}:${nm}.gz $CTMdest/.CTMtmp_${nm}.gz >&@ stdout
+    exec mv $CTMdest/.CTMtmp_${nm}.gz $CTMdest/${nm}.gz >&@ stdout
+
+    if {$CTMmail != ""} {
+	puts "Mailing delta"
+	flush stdout
+	exec $CTMSW/ctm_smail -m 50000 -c 300000 $CTMdest/${nm}.gz $CTMmail >&@ stdout
+    }
+
+    # If we did an absolute delta: stop.
+    if {$CTMsuff != ""} break
+
+    # Make a absolute delta (!) every 100 deltas
+    if {$CTMnbr % 100} break
+
+    # Make an absolute delta too...
+    set CTMref $CTMcopy
+    set CTMsuff A
+    set CTMcopy ""
+    set CTMmail ""
+    set CTMapply 0
 }
-
-close $fo_del
-close $fo_rmdir
-close $fo_mkdir
-close $fo_files
-
-exec echo CTM_BEGIN 2.0 $CTMname $CTMnbr $CTMdate $CTMprefix > $tmp.begin
-exec echo -n "CTM_END " >> $tmp.end
-set m [exec cat $tmp.begin $tmp.del $tmp.rmdir $tmp.mkdir $tmp.files $tmp.end | /sbin/md5]
-exec echo "$m" >> $tmp.end
-
-if {!$changes} {
-    puts "no changes"
-    exec sh -c "rm -f ${tmp}.*"
-    exit 0
-}
-flush stdout
-set  nm [format "%s.%04d%s" $CTMname $CTMnbr $CTMsuff]
-
-exec cat $tmp.begin $tmp.del $tmp.rmdir $tmp.mkdir $tmp.files $tmp.end \
-	| gzip -9 > ${tmp}:${nm}.gz 
-
-exec sh -x -c "rm -f ${tmp}.*" >&@ stdout
-
-if {$CTMapply} {
-	exec sh -e -x -c "cd $CTMcopy ; /u1/CTM/SW/ctm -v -v -v ${tmp}:${nm}.gz" >&@ stdout
-}
-exec mv ${tmp}:${nm}.gz $dd/.tmp_${nm}.gz >&@ stdout
-exec mv $dd/.tmp_${nm}.gz $dd/${nm}.gz >&@ stdout
-
-if {$CTMmail != ""} {
-    exec /u1/phk/ctm_smail/ctm_smail -m 50000 -c 300000 $dd/${nm}.gz $CTMmail >&@ stdout
-}
+puts "done."