X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/6d8e724de2f64116a2d2684fe2f84e4d02b5809b..58697c6d89f2db69aa2321fe92fc388f87bf2a3c:/bootstrap

diff --git a/bootstrap b/bootstrap
index 295e92a3..f92d1ccd 100755
--- a/bootstrap
+++ b/bootstrap
@@ -2,7 +2,8 @@
 
 # Bootstrap this package from checked-out sources.
 
-# Copyright (C) 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
+# Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation,
+# Inc.
 
 # 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
@@ -41,16 +42,16 @@ Bootstrap this package from the checked-out sources.
 
 Options:
  --gnulib-srcdir=DIRNAME  Specify the local directory where gnulib
-                          sources reside.  Use this if you already
-                          have gnulib sources on your machine, and
-                          do not want to waste your bandwidth downloading
-                          them again.
+			  sources reside.  Use this if you already
+			  have gnulib sources on your machine, and
+			  do not want to waste your bandwidth downloading
+			  them again.
  --copy                   Copy files instead of creating symbolic links.
  --force                  Attempt to bootstrap even if the sources seem
-                          not to have been checked out.
+			  not to have been checked out.
  --skip-po                Do not download po files.
  --cvs-user=USERNAME      Set the username to use when checking out
-                          sources from the gnulib repository.
+			  sources from the gnulib repository.
 
 If the file bootstrap.conf exists in the current working directory, its
 contents are read as shell variables to configure the bootstrap.
@@ -139,6 +140,37 @@ copy=false
 # on which version control system (if any) is used in the source directory.
 vc_ignore=auto
 
+# find_tool ENVVAR NAMES...
+# -------------------------
+find_tool ()
+{
+  # Find sha1sum, named gsha1sum on MacPorts.
+  find_tool_envvar=$1
+  shift
+  if eval test x"\$$find_tool_envvar" = x; then
+    for i
+    do
+      if ($i --version </dev/null) >/dev/null 2>&1; then
+	find_tool_res=$i
+	break
+      fi
+    done
+  fi
+  if test x"$find_tool_res" = x; then
+    echo >&2 "$0: $find_tool_name is required"
+    exit 1
+  fi
+  ($find_tool_res --version </dev/null) >/dev/null 2>&1 || {
+    echo >&2 "$0: cannot run $find_tool_res --version"
+    exit 1
+  }
+  eval "$find_tool_envvar=\"$find_tool_res\""
+  eval "export $find_tool_envvar"
+}
+
+# Find sha1sum, named gsha1sum on MacPorts.
+find_tool SHA1SUM sha1sum gsha1sum
+
 # Override the default configuration, if necessary.
 test -r bootstrap.conf && . ./bootstrap.conf
 
@@ -179,7 +211,7 @@ if test -n "$checkout_only_file" && test ! -r "$checkout_only_file"; then
   exit 1
 fi
 
-# If $STR is not already on a line by itself in $FILE, insert it,
+# If each line in $STR is not already on a line by itself in $FILE, insert it,
 # sorting the new contents of the file and replacing $FILE with the result.
 insert_sorted_if_absent() {
   file=$1
@@ -190,6 +222,21 @@ insert_sorted_if_absent() {
     || exit 1
 }
 
+# Adjust $PATTERN for $VC_IGNORE_FILE and insert it with
+# insert_sorted_if_absent.
+insert_vc_ignore() {
+  vc_ignore_file="$1"
+  case $vc_ignore_file in
+  *.gitignore)
+    # A .gitignore entry that does not start with `/' applies recursively to
+    # subdirectories, so prepend `/' to every .gitignore entry.
+    pattern=`echo "$2" | sed s,^,/,`;;
+  *)
+    pattern="$2";;
+  esac
+  insert_sorted_if_absent "$vc_ignore_file" "$pattern"
+}
+
 # Die if there is no AC_CONFIG_AUX_DIR($build_aux) line in configure.ac.
 found_aux_dir=no
 grep '^[	 ]*AC_CONFIG_AUX_DIR(\['"$build_aux"'\])' configure.ac \
@@ -208,7 +255,7 @@ if test ! -d $build_aux; then
   mkdir $build_aux
   for dot_ig in x $vc_ignore; do
     test $dot_ig = x && continue
-    insert_sorted_if_absent $dot_ig $build_aux
+    insert_vc_ignore $dot_ig $build_aux
   done
 fi
 
@@ -220,6 +267,20 @@ cleanup_gnulib() {
   exit $status
 }
 
+# See if we can use gnulib's git-merge-changelog merge driver.
+
+if test -d .git && (git --version) >/dev/null 2>/dev/null ; then
+  if git config merge.merge-changelog.driver >/dev/null ; then
+    :
+  elif (git-merge-changelog --version) >/dev/null 2>/dev/null ; then
+    echo "initializing git-merge-changelog driver"
+    git config merge.merge-changelog.name 'GNU-style ChangeLog merge driver'
+    git config merge.merge-changelog.driver 'git-merge-changelog %O %A %B'
+  else
+    echo "consider installing git-merge-changelog from gnulib"
+  fi
+fi
+
 # Get gnulib files.
 
 case ${GNULIB_SRCDIR--} in
@@ -243,7 +304,7 @@ case ${GNULIB_SRCDIR--} in
 
     trap cleanup_gnulib 1 2 13 15
 
-    cvs -z3 -q -d ${CVS_PREFIX}cvs.savannah.gnu.org:/cvsroot/gnulib co gnulib ||
+    cvs -z3 -q -d ${CVS_PREFIX}pserver.git.sv.gnu.org:/gnulib.git co -d gnulib HEAD ||
       cleanup_gnulib
 
     trap - 1 2 13 15
@@ -284,9 +345,9 @@ update_po_files() {
   for po in `cd $ref_po_dir && echo *.po|sed 's/\.po//g'`; do
      new_po="$ref_po_dir/$po.po"
      cksum_file="$ref_po_dir/$po.s1"
-     if ! sha1sum -c --status "$cksum_file" < "$new_po" > /dev/null; then
+     if ! "$SHA1SUM" -c --status "$cksum_file" < "$new_po" > /dev/null; then
        echo "updated $po_dir/$po.po..."
-       cp "$new_po" "$po_dir/$po.po" && sha1sum < "$new_po" > "$cksum_file"
+       cp "$new_po" "$po_dir/$po.po" && "$SHA1SUM" < "$new_po" > "$cksum_file"
      fi
   done
 }
@@ -302,6 +363,27 @@ case $SKIP_PO in
   fi;;
 esac
 
+check_dst_dir()
+{
+  dst=$1
+  # If the destination directory doesn't exist, create it.
+  # This is required at least for "lib/uniwidth/cjk.h".
+  dst_dir=`dirname "$dst"`
+  if ! test -d "$dst_dir"; then
+    mkdir -p "$dst_dir"
+
+    # If we've just created a directory like lib/uniwidth,
+    # tell version control system(s) it's ignorable.
+    # FIXME: for now, this does only one level
+    parent=`dirname "$dst_dir"`
+    for dot_ig in x $vc_ignore; do
+      test $dot_ig = x && continue
+      ig=$parent/$dot_ig
+      insert_vc_ignore $ig `echo "$dst_dir"|sed 's,.*/,,'`
+    done
+  fi
+}
+
 symlink_to_dir()
 {
   src=$1/$2
@@ -309,22 +391,7 @@ symlink_to_dir()
 
   test -f "$src" && {
 
-    # If the destination directory doesn't exist, create it.
-    # This is required at least for "lib/uniwidth/cjk.h".
-    dst_dir=`dirname "$dst"`
-    if ! test -d "$dst_dir"; then
-      mkdir -p "$dst_dir"
-
-      # If we've just created a directory like lib/uniwidth,
-      # tell version control system(s) it's ignorable.
-      # FIXME: for now, this does only one level
-      parent=`dirname "$dst_dir"`
-      for dot_ig in x $vc_ignore; do
-	test $dot_ig = x && continue
-	ig=$parent/$dot_ig
-	insert_sorted_if_absent $ig `echo "$dst_dir"|sed 's,.*/,,'`
-      done
-    fi
+    check_dst_dir "$dst"
 
     if $copy; then
       {
@@ -388,6 +455,7 @@ cp_mark_as_generated()
 	sed "s!$bt_regex/!!g" "$cp_src" > "$cp_dst"
       }
     else
+      check_dst_dir "$cp_dst"
       # Copy the file first to get proper permissions if it
       # doesn't already exist.  Then overwrite the copy.
       cp "$cp_src" "$cp_dst-t" &&
@@ -435,9 +503,9 @@ slurp() {
 	test "$dir/$file" = "$excluded_file" && continue 2
       done
       if test $file = Makefile.am; then
-        copied=$copied${sep}$gnulib_mk; sep=$nl
+	copied=$copied${sep}$gnulib_mk; sep=$nl
 	remove_intl='/^[^#].*\/intl/s/^/#/;'"s!$bt_regex/!!g"
-        sed "$remove_intl" $1/$dir/$file | cmp -s - $dir/$gnulib_mk || {
+	sed "$remove_intl" $1/$dir/$file | cmp -s - $dir/$gnulib_mk || {
 	  echo "$0: Copying $1/$dir/$file to $dir/$gnulib_mk ..." &&
 	  rm -f $dir/$gnulib_mk &&
 	  sed "$remove_intl" $1/$dir/$file >$dir/$gnulib_mk
@@ -468,18 +536,18 @@ slurp() {
       test $dot_ig = x && continue
       ig=$dir/$dot_ig
       if test -n "$copied"; then
-	insert_sorted_if_absent $ig "$copied"
+	insert_vc_ignore $ig "$copied"
 	# If an ignored file name ends with _.h, then also add
 	# the name with just ".h".  Many gnulib headers are generated,
 	# e.g., stdint_.h -> stdint.h, dirent_.h ->..., etc.
 	# Likewise for .gperf -> .h, .y -> .c, and .sin -> .sed
 	f=`echo "$copied"|sed 's/_\.h$/.h/;s/\.sin$/.sed/;s/\.y$/.c/;s/\.gperf$/.h/'`
-	insert_sorted_if_absent $ig "$f"
+	insert_vc_ignore $ig "$f"
 
 	# For files like sys_stat_.h and sys_time_.h, record as
 	# ignorable the directory we might eventually create: sys/.
 	f=`echo "$copied"|sed 's/sys_.*_\.h$/sys/'`
-	insert_sorted_if_absent $ig "$f"
+	insert_vc_ignore $ig "$f"
       fi
     done
   done