added gnutls backend and moved backend code into new files
[ircu2.10.12-pk.git] / ircd-patch
index 08818a89e75ce4abaa692204664302fa6e226bf7..9637b89aa72ad77ccfd98932f1f660673cdcee49 100755 (executable)
@@ -1,13 +1,43 @@
 #!/bin/sh
 #
-# ircd-patch
+# IRC - Internet Relay Chat, ircd-patch
 # Copyright (C) 2002 Alex Badea <vampire@p16.pub.ro>
 #
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 1, or (at your option)
+# any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+#
+# $Id: ircd-patch,v 1.5.2.1 2005-12-29 03:41:56 entrope Exp $
+#
+#
 # Experimental centralized patch system for ircu
+# Run with no arguments to get help.
+#
+# Return codes:
+#   0 - success
+#   1 - at least one live patch failed
+#   2 - at least one simulation (dry run) failed 
+#   3 - invalid arguments (i.e. no such patch)
+#   4 - invalid operation (i.e. tried to apply when already applied)
 #
 
 DIFFS=patches/diffs
 MARKS=patches/marks
+PLIST_FILE=include/patchlist.h
+
+retcode=0
+force=0
+
 
 PLIST=""
 for fname in $DIFFS/*.diff ; do
@@ -15,10 +45,28 @@ for fname in $DIFFS/*.diff ; do
        PLIST="$PLIST $name"
 done
 
+update_patchlist() {
+       list=""
+       for name in $PLIST ; do
+               test -f $MARKS/$name && list="$list.$name"
+       done
+       echo "/* This file was automatically generated by ircd-patch */" > $PLIST_FILE
+       echo "#define PATCHLIST \"$list\"" >> $PLIST_FILE
+       echo "Updated $PLIST_FILE"
+}
+
+test -d $DIFFS || (echo "*** Missing $DIFFS, creating it" ; mkdir -p $DIFFS)
+test -d $MARKS || (echo "*** Missing $MARKS, creating it" ; mkdir -p $MARKS)
+
+dry_run() {
+       rejects=`patch -p0 -N -t --dry-run $2 < $1 | grep "hunk FAILED" | sed -e 's/.*to file /  /;s/\.rej$//'`
+       test -z "$rejects"
+}
+
 patch_list() {
        echo "Available patches (* marks applied patches):"
        for name in $PLIST ; do
-               [ -f $MARKS/$name ] && echo -n " * " || echo -n "   "
+               test -f $MARKS/$name && echo -n " * " || echo -n "   "
                echo $name
        done
        echo "Done."
@@ -27,26 +75,27 @@ patch_list() {
 patch_test() {
        echo "Testing patches:"
        list="$*"
-       [ -z "$list" ] && list=$PLIST
+       test "z$list" = "z" && list=$PLIST
        for name in $list ; do
                fname=$DIFFS/$name.diff
-               echo -n "  "
-               if [ ! -f $MARKS/$name ] ; then
-                       echo -n "        "
-                       if patch -p0 -N -t --dry-run >/dev/null < $fname ; then
-                               echo -n "     "
+               echo -ne "  $name\t"
+               if test ! -f $MARKS/$name ; then
+                       if dry_run "$fname" ; then
+                               echo -n " OK"
                        else
-                               echo -n "fail "
+                               echo -n " PATCH FAILED"
+                               retcode=2
                        fi
                else
-                       echo -n "applied "
-                       if patch -p0 -R -t --dry-run >/dev/null < $fname ; then
-                               echo -n "     "
+                       echo -n " APPLIED"
+                       if dry_run "$fname" -R ; then
+                               echo -n " OK"
                        else
-                               echo -n "fail "
+                               echo -n " REVERSE FAILED"
+                               retcode=2
                        fi
                fi
-               echo " $name"
+               echo
        done
        echo "Done."
 }
@@ -54,65 +103,110 @@ patch_test() {
 patch_add() {
        name=$1
        fname="$DIFFS/$name.diff"
-       if [ ! -f $fname ]; then
+       if test ! -f $fname ; then
                echo "Patch $name ($fname) does not exist"
-               return 1
+               retcode=3
+               return
        fi
-       if [ -f $MARKS/$name ] ; then
+
+       if test $force -lt 2 -a -f $MARKS/$name ; then
                echo "Patch $name seems already applied"
-               return 1
+               retcode=4
+               return
        fi
+
+       if test $force -lt 1 ; then
+               echo -n "Testing $fname... "
+               if ! dry_run $fname ; then
+                       echo "Failed (use -f to force)."
+                       echo "The following files failed patching:"
+                       echo "$rejects"
+                       retcode=2
+                       return
+               fi
+               echo "seems ok."
+       fi
+
        echo "Applying $fname..."
        if patch -p0 -N -t < $fname ; then
                touch $MARKS/$name
                echo "Done."
        else
                echo "Failed."
+               retcode=1
        fi
 }
 
 patch_del() {
        name=$1
        fname="$DIFFS/$name.diff"
-       if [ ! -f $fname ]; then
+       if test ! -f $fname ; then
                echo "Patch $name ($fname) does not exist"
-               return 1
+               retcode=3
+               return
        fi
-       if [ ! -f $MARKS/$name ] ; then
+
+       if test $force -lt 2 -a ! -f $MARKS/$name ; then
                echo "Patch $name doesn't seem to be applied"
-               return 1
+               retcode=4
+               return
        fi
+
+       if test $force -lt 1 ; then
+               echo -n "Testing $fname... "
+               if ! dry_run $fname -R ; then
+                       echo "Failed (use -f to force)."
+                       echo "The following files failed patching:"
+                       echo "$rejects"
+                       retcode=2
+                       return
+               fi
+               echo "seems ok."
+       fi
+       
        echo "Reversing $fname..."
        if patch -p0 -R -t < $fname ; then
                rm -f $MARKS/$name
                echo "Done."
        else
                echo "Failed."
+               retcode=1
        fi
 }
 
 do_help() {
-       echo "Usage: $0 [args]"
+       echo "Usage: $0 [-f [-f]] [args]"
        echo "Arguments may be:"
-       echo "  help              Prints this help"
-       echo "  list              List available patches"
-       echo "  test [patch list] Tests whether patches can be (un)applied correctly"
-       echo "  add  <patch list> Applies a patch"
-       echo "  del  <patch list> Reverses a patch"
+       echo "  help                Prints this help"
+       echo "  list                List available patches"
+       echo "  test [patch list]   Tests whether patches can be (un)applied correctly"
+       echo "  add  <patch list>   Applies a patch"
+       echo "  del  <patch list>   Reverses a patch"
+       echo "  update              Updates $PLIST_FILE with the currently applied patches"
+       echo "The -f option forces patching even if a dry run fails (effective on 'add'"
+       echo "and 'del' commands only). Using it twice will also skip checking whether"
+       echo "a patch is already applied."
 }
 
+while test "$1" = "-f" ; do
+       force=`expr $force + 1`
+       shift
+done
+
 case "$1" in
        add)
                shift
                for name in $* ; do
                        patch_add $name
                done
+               update_patchlist
                ;;
        del)
                shift
                for name in $* ; do
                        patch_del $name
                done
+               update_patchlist
                ;;
        test)
                shift
@@ -121,7 +215,12 @@ case "$1" in
        list)
                patch_list
                ;;
+       update)
+               update_patchlist
+               ;;
        *)
                do_help
                ;;
 esac
+
+exit $retcode