Script for synchronizing with gnulib

Sergey Poznyakoff
Commit 6e68061b ... 6e68061b7f2281fe58e8c79144e456629f2abed4 authored 2005-02-23 14:42:20 +0000 by Sergey Poznyakoff
Showing 1 changed file with 356 additions and 0 deletions
scripts/gnulib-sync
--- a/scripts/gnulib-sync 0 → 100755
View file @6e68061
+++ b/scripts/gnulib-sync 0 → 100755
View file @6e68061
+#! /bin/sh
+#  Copyright (C) 2005 Free Software Foundation, Inc.
+#
+#  GNU Mailutils 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 2, 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.
+#  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+LC_ALL=C
+export LC_ALL
+CVSFILES=cvsfiles.$$
+CHANGELOG=changelog.$$
+
+usage() {
+ cat <<-EOF
+	usage: $0 GNULIB-DIR
+	$0 synchronizes mailutils library with gnulib. 
+
+	GNULIB-DIR is the directory where gnulib sources reside. The program
+	reads file gnulib.modules, populates the mailutils tree with the
+	necessary files from GNULIB-DIR and updates Makefile.am-s.
+
+	Options:
+
+	--verbose         Display every operation
+	--dry-run         Do not do anything, just print what would have been done
+	--help            Display this help list
+
+EOF
+} 
+
+error() {
+  echo $* >&2
+  echo "Try $0 --help for more information" >&2
+  exit 1
+}	
+
+DRY_RUN=
+VERBOSE=
+while [ $# -ne 0 ]
+do
+  case $1 in
+  --help)
+	usage
+	exit 0;;
+  --dry-run)
+	DRY_RUN=1; shift;;
+  --verbose)
+	VERBOSE=1; shift;;	
+  --*)
+        echo >&2 "$0: $1: unknown option"
+        exit 1;;
+  *)
+        break;;
+  esac
+done
+
+if [ $# -ne 1 ]; then
+  error "Wrong number of arguments"	
+fi
+
+GNULIB_SRCDIR=$1
+
+
+# Check the correctness of the invocation
+
+if [ -r configure.ac ]; then
+  if grep -q 'AC_INIT(\[GNU Mailutils' configure.ac; then
+    :
+  else
+    error "This does not seem a mailutils package."
+  fi
+else
+  error "Cannot find configure.ac"
+fi	
+
+if [ -r gnulib.modules ]; then
+  :
+else
+  error "gnulib.modules does not exist."
+  exit 1
+fi
+
+if [ -d $GNULIB_SRCDIR ]; then
+  :
+else
+  echo "$GNULIB_SRCDIR: not found or is not a directory" >&2
+  exit 1
+fi
+
+<$GNULIB_SRCDIR/gnulib-tool || error "gnulib-tool is not present?!?"
+
+#####################
+## Functions
+#####################
+
+get_modules() {
+  while read NAME
+  do
+    case $NAME in
+    "")     ;;
+    \#*)	;;
+    :*)	variable=`echo $NAME | cut -c2-`
+	case $variable in
+	lib|mailbox)	;;
+	*) echo "Unknown variable $variable" >&2
+	   exit 1;;
+	esac;;
+     *)	eval ${variable}_modules=\"\$${variable}_modules $NAME\"
+    esac
+  done < $1
+}
+
+expand_modules() {
+  eval gnulib_modules="\$${1}"
+  gnulib_modules="`echo $gnulib_modules | sort -u -`"
+  previous_gnulib_modules=
+  while [ "$gnulib_modules" != "$previous_gnulib_modules" ]
+  do
+    previous_gnulib_modules=$gnulib_modules
+    gnulib_modules=`(echo "$gnulib_modules"
+		     for module in $gnulib_modules; do
+	  	       $GNULIB_SRCDIR/gnulib-tool --extract-dependencies $module
+		     done) | sort -u
+    `
+  done
+  eval ${1}=\"$gnulib_modules\"
+}
+
+verbose() {
+  [ -n "$VERBOSE" ] && echo $*
+}	
+
+do_copy() {
+  case $1 in
+  *.m4) verbose "${3:-Copying} $1 to $2"
+        if [ -z "$DRY_RUN" ]; then
+          if [ -n "$3" ]; then
+            sed "$3" $1 > $2 || exit
+          else
+            cp $1 $2 || exit
+          fi
+        fi;;
+  *)    verbose "Copying $1 to $2"
+        if [ -z "$DRY_RUN" ]; then
+          cp $1 $2 || exit
+        fi;;
+  esac
+  echo $2 >> $CVSFILES
+}			
+
+# copy_files dir
+copy_files() {
+  eval list="\$${1}_modules"
+  files=`$GNULIB_SRCDIR/gnulib-tool --extract-filelist $list | sort -u`
+	
+  echo "$files" | sed 's,/[^/]*$,,' | sort -u |
+  sed "s/lib/$1/;s/config/scripts/" |
+  while read DIR
+  do
+     if [ -d $DIR ]; then
+       :
+     else
+       echo "Directory $DIR does not exist!" >&2
+       echo "Update gnulib-sync script!" >&2
+       exit 1
+     fi
+   done
+	 	
+   for file in $files
+   do
+     dest=`echo $file | sed "s/lib/$1/;s/config\//scripts\//"`
+		
+     case $file in
+     m4/codeset.m4) continue;;
+     m4/intdiv0.m4) continue;;
+     m4/inttypes-pri.m4) continue;;
+     m4/isc-posix.m4) continue;;
+     m4/lcmessage.m4) continue;;
+     m4/onceonly_2_57.m4) dest=m4/onceonly.m4;;
+     # These will be overwritten by autopoint, which still uses
+     # old jm_.* macro names, so we have to keep both copies.
+     m4/gettext.m4 | m4/glibc21.m4 | m4/inttypes_h.m4 | m4/lib-ld.m4 | \
+     m4/lib-prefix.m4 | m4/po.m4 | m4/stdint_h.m4 | m4/uintmax_t.m4 | \
+     m4/longlong.m4 | m4/ulonglong.m4)
+       dest=`expr $file : '\(.*\).m4'`_gl.m4;;
+     esac
+
+     rm -f $dest &&
+       do_copy $GNULIB_SRCDIR/$file $dest $2
+     done
+}	
+
+create_m4_wrapper() {
+  (eval list="\$${1}_modules"
+   if [ $# -eq 1 ]; then
+     libname=lib$1
+   else
+     libname=$2
+   fi
+   echo "AC_DEFUN([${libname}_GNULIB],["
+   for module in $list
+   do
+     echo "# $module"
+     $GNULIB_SRCDIR/gnulib-tool --extract-autoconf-snippet $module
+   done
+   echo "])") | sed '/AM_GNU_GETTEXT/d'
+}				
+
+update_makefile_am() {
+  eval list="\$${1}_modules"
+  if [ $# -eq 1 ]; then
+    libname=lib$1
+  else
+    libname=$2
+  fi
+  cat $1/Makefile.am | sed '/##:##.*##:##/,$d'
+  echo "##:## EOF marker for gnulib-sync script. Please, do not remove ##:##"
+  echo "## Do not change anything below this line ##"
+  $GNULIB_SRCDIR/gnulib-tool --extract-automake-snippet $list |
+   sed "s/lib_/${libname}_la_/g"
+}
+
+# Update EXTRA_DIST variables based on MU_LIBSOURCES and MU_LIBOBJ
+# FIXME: This needs cleaning up. First, the output list should be
+# filtered through `sort -u'. Secondly, the actual value of EXTRA_DIST
+# must be considered too.
+update_extra_dist() {
+  file=$1/Makefile.am
+  shift
+
+  # The following sed program does not work: s/[\[\]]//g. A bug in sed?
+  # 
+  find m4 -name '*.m4' -not -name mu_libobj.m4 |
+   xargs sed -n \
+     '/MU_LIBSOURCES/{s/,//g;s/.*MU_LIBSOURCES *( *\[\(.*\)\]).*/\1/p;};/MU_LIBOBJ/{s/\[//g;s/\]//g;s/.*MU_LIBOBJ *(\(.*\)).*/\1.c/p;};/MU_REPLACE_FUNCS/{s/\[//g;s/\]//g;s/.*MU_REPLACE_FUNCS *(\(.*\)).*/\1.c/p;}' |
+   (EXTRA_DIST=
+   while read NAME; do EXTRA_DIST="$EXTRA_DIST $NAME"; done
+   if [ -n "$EXTRA_DIST" ]; then 
+     echo "EXTRA_DIST +=$EXTRA_DIST"
+   fi)
+}
+  
+cvs_commands() {
+  echo "<<<<<<	Update by gnulib-sync. Please edit before applying" > $CHANGELOG
+  echo "" >> $CHANGELOG
+
+  echo "# CVS commands generated by gnulib-sync at `date`"
+  echo "# Please edit before applying"
+  
+  sort $CVSFILES |
+   while read NAME
+   do
+     dir=`expr $NAME : '\(.*\)/.*'`
+     name=`expr $NAME : '.*/\(.*\)'`
+     if [ -r $dir/CVS/Entries ]; then
+       if grep -q $name $dir/CVS/Entries; then
+	 comment="Updated"
+       else
+         comment="Added to the repository"
+         echo "cvs add $NAME"
+       fi
+       echo "cvs commit -m '$comment by gnulib-sync' $NAME"
+       echo "	* $NAME: $comment" >> $CHANGELOG
+     fi
+   done
+  echo ">>>>>>" >> $CHANGELOG
+}
+
+cleanup() {
+  rm -f $CVSFILES $CHANGELOG
+}
+
+#####################
+## OK, let's start!
+#####################
+
+cat /dev/null > $CVSFILES
+trap cleanup 1 2 13 15
+
+get_modules gnulib.modules
+
+expand_modules lib_modules
+expand_modules mailbox_modules
+
+MODLIST=
+for mod in $lib_modules
+do
+  if echo "$mailbox_modules" | grep -q " $mod " -; then
+    :
+  else
+    MODLIST="$MODLIST $mod"
+  fi
+done      
+
+lib_modules=`echo $MODLIST | sort -u`
+mailbox_modules=`echo $mailbox_modules | sort -u`
+
+copy_files lib
+copy_files mailbox 's/AC_LIBSOURCES/MU_LIBSOURCES/;s/AC_REPLACE_FUNCS/MU_REPLACE_FUNCS/;s/AC_LIBOBJ/MU_LIBOBJ/'
+
+if [ -n "$DRY_RUN" ]; then
+  echo "-----BEGIN gnulib.m4 FILE-----"
+  create_m4_wrapper lib mailutils
+  create_m4_wrapper mailbox
+  echo "-----END gnulib.m4 FILE-----"
+  echo ""
+  echo "-----BEGIN lib/Makefile.am FILE-----"
+  update_makefile_am lib libmailutils
+  echo "-----END lib/Makefile.am FILE-----"
+  echo ""
+  echo "-----BEGIN mailbox/Makefile.am FILE-----"
+  update_makefile_am mailbox
+  update_extra_dist mailbox m4/*.m4
+  echo "-----END mailbox/Makefile.am FILE-----"
+  echo "-----BEGIN CVS COMMANDS-----"
+  cvs_commands
+  echo "-----END CVS COMMANDS-----"
+  echo "-----BEGIN ChangeLog ENTRY-----"
+  cat $CHANGELOG 
+  echo "-----END ChangeLog ENTRY-----"
+else	
+  verbose "Creating gnulib.m4"
+  (echo "# This file is generated automatically. Please, do not edit."
+   echo "#"
+   create_m4_wrapper lib libmailutils
+   create_m4_wrapper mailbox) > m4/gnulib.m4
+
+  verbose "Creating lib/Makefile.am"
+  update_makefile_am lib libmailutils > lib/Makefile.am.$$
+  mv lib/Makefile.am.$$ lib/Makefile.am
+    
+  verbose "Creating mailbox/Makefile.am"
+  (update_makefile_am mailbox
+   update_extra_dist mailbox m4/*.m4) > mailbox/Makefile.am.$$
+  mv mailbox/Makefile.am.$$ mailbox/Makefile.am
+
+  cvs_commands > gnulib.cvs
+  mv $CHANGELOG gnulib.changelog
+  echo "See gnulib.cvs and gnulib.changelog"  
+fi	
+
+cleanup
+
+exit 0
+