TODO: YYPRINT.

[bison.git] / bootstrap

diff --git a/bootstrap b/bootstrap
index e0ac7c75b2850fa1c4a005337f799e129174d293..f92d1ccd8ef55b5ffe8918b74b0d760a231d90ff 100755 (executable)
--- 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
@@ -210,7 +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
@@ -221,6 +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 \
@@ -239,7 +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
 
@@ -251,6 +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
@@ -274,7 +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
@@ -333,6 +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
@@ -340,22 +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 $copy; then
       {
@@ -419,6 +455,7 @@ cp_mark_as_generated()
        sed "s!$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" &&
@@ -499,18 +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