From bea3bed91c1de97ab9ec4fc067c928eb6049f9ce Mon Sep 17 00:00:00 2001
From: Bruno Haible <bruno@clisp.org>
Date: Mon, 18 Sep 2006 13:04:17 +0000
Subject: [PATCH] Speed up presentation of the include files.

---
 ChangeLog   |  7 +++++++
 gnulib-tool | 48 ++++++++++++++++++++++++------------------------
 2 files changed, 31 insertions(+), 24 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 1ff3955bf8..02082f32ad 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2006-09-15  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
+
+	Speed up by a factor of 1.12.
+	* gnulib-tool (nl): New variable.
+	(func_import): Rewrite include directive extraction to only read each
+	directive once.
+
 2006-09-17  Bruno Haible  <bruno@clisp.org>
 
 	* gnulib-tool (func_create_testdir): Rewrite all files at once.
diff --git a/gnulib-tool b/gnulib-tool
index 416663dc47..d59f8cfd4e 100755
--- a/gnulib-tool
+++ b/gnulib-tool
@@ -22,9 +22,11 @@
 
 progname=$0
 package=gnulib
-cvsdatestamp='$Date: 2006-09-18 13:03:14 $'
+cvsdatestamp='$Date: 2006-09-18 13:04:17 $'
 last_checkin_date=`echo "$cvsdatestamp" | sed -e 's,^\$[D]ate: ,,'`
 version=`echo "$last_checkin_date" | sed -e 's/ .*$//' -e 's,/,-,g'`
+nl='
+'
 
 # You can set AUTOCONFPATH to empty if autoconf 2.57 is already in your PATH.
 AUTOCONFPATH=
@@ -1943,30 +1945,28 @@ func_import ()
   echo "Finished."
   echo
   echo "You may need to add #include directives for the following .h files."
+  # First the #include <...> directives without #ifs, sorted for convenience,
+  # then the #include "..." directives without #ifs, sorted for convenience,
+  # then the #include directives that are surrounded by #ifs. Not sorted.
+  for module in $modules; do
+    include_directive=`func_get_include_directive "$module"`
+    case "$nl$include_directive" in
+      *"$nl#if"*)
+        echo "$include_directive" 1>&5
+        ;;
+      *)
+        echo "$include_directive" | grep -v 'include "' 1>&6
+        echo "$include_directive" | grep 'include "' 1>&7
+        ;;
+    esac
+  done 5> "$tmp"/include-if 6> "$tmp"/include-angles 7> "$tmp"/include-quotes
   (
-   # First the #include <...> directives without #ifs, sorted for convenience.
-   for module in $modules; do
-     if func_get_include_directive "$module" | grep '^#if' >/dev/null; then
-       :
-     else
-       func_get_include_directive "$module" | grep -v 'include "'
-     fi
-   done | LC_ALL=C sort -u
-   # Then the #include "..." directives without #ifs, sorted for convenience.
-   for module in $modules; do
-     if func_get_include_directive "$module" | grep '^#if' >/dev/null; then
-       :
-     else
-       func_get_include_directive "$module" | grep 'include "'
-     fi
-   done | LC_ALL=C sort -u
-   # Then the #include directives that are surrounded by #ifs. Not sorted.
-   for module in $modules; do
-     if func_get_include_directive "$module" | grep '^#if' >/dev/null; then
-       func_get_include_directive "$module"
-     fi
-   done
-  ) | sed -e '/^$/d;' -e 's/^/  /'
+   LC_ALL=C sort -u "$tmp"/include-angles
+   LC_ALL=C sort -u "$tmp"/include-quotes
+   cat "$tmp"/include-if
+  ) | sed -e '/^$/d' -e 's/^/  /'
+  rm -f "$tmp"/include-angles "$tmp"/include-quotes "$tmp"/include-if
+
   echo
   echo "Don't forget to"
   if test "$makefile_am" = Makefile.am; then
-- 
2.30.2