[PATCH] fix mktemp (remove mktemp ;)

[Paul Jackson <pj@sgi.com>]

Remove mktemp usage - it doesn't work on
some Mandrakes, nor on my SuSE 8.2 with
mktemp-1.5-531.

Replace with simple use of $$ (pid).
I've been using this same pattern for
20 years on many production scripts;
it's fast, solid and simple.

More robust tmp file removal, using trap,
so that scripts interrupted by signals
HUP, INT, QUIT or PIPE will cleanup.

Signed-off-by: Paul Jackson <pj@sgi.com>

Index: git-pasky-0.4/README
===================================================================
--- git-pasky-0.4.orig/README	2005-04-16 13:16:54.000000000 -0700
+++ git-pasky-0.4/README	2005-04-16 13:17:01.000000000 -0700
@@ -116,7 +116,6 @@ Software requirements:
 	C compiler
 	bash
 	basic shell environment (sed, gred, textutils, ...)
-	mktemp 1.5+ (Mandrake users beware!)
 	diff, patch
 
 
Index: git-pasky-0.4/gitcommit.sh
===================================================================
--- git-pasky-0.4.orig/gitcommit.sh	2005-04-12 10:39:14.000000000 -0700
+++ git-pasky-0.4/gitcommit.sh	2005-04-16 13:17:49.000000000 -0700
@@ -60,7 +60,9 @@ for file in $commitfiles; do
 	echo $file;
 done
 echo "Enter commit message, terminated by ctrl-D on a separate line:"
-LOGMSG=`mktemp -t gitci.XXXXXX`
+t=${TMPDIR:-/usr/tmp}/gitapply.$$
+trap 'rm -f $t.?; trap 0; exit 0' 0 1 2 3 15
+LOGMSG=$t.1
 if [ "$merged" ]; then
 	cat .git/merged | sed 's/^/Merging: /' >>$LOGMSG
 	cat .git/merged | sed 's/^/Merging: /'
@@ -86,7 +88,6 @@ if [ "$treeid" = "$(tree-id)" ] && [ ! "
 fi
 
 newhead=$(commit-tree $treeid $oldhead $merged <$LOGMSG)
-rm $LOGMSG
 rm -f .git/add-queue .git/rm-queue .git/merged
 
 if [ "$newhead" ]; then
Index: git-pasky-0.4/gitapply.sh
===================================================================
--- git-pasky-0.4.orig/gitapply.sh	2005-04-13 02:21:14.000000000 -0700
+++ git-pasky-0.4/gitapply.sh	2005-04-16 13:16:13.000000000 -0700
@@ -8,9 +8,11 @@
 #
 # Takes the diff on stdin.
 
-gonefile=$(mktemp -t gitapply.XXXXXX)
-todo=$(mktemp -t gitapply.XXXXXX)
-patchfifo=$(mktemp -t gitapply.XXXXXX)
+t=${TMPDIR:-/usr/tmp}/gitapply.$$
+trap 'rm -f $t.?; trap 0; exit 0' 0 1 2 3 15
+gonefile=$t.1
+todo=$t.2
+patchfifo=$t.3
 rm $patchfifo && mkfifo -m 600 $patchfifo
 
 show-files --deleted >$gonefile
@@ -74,4 +76,3 @@ while [ "$1" ]; do
 done
 '
 
-rm $pathfifo $todo $gonefile
Index: git-pasky-0.4/gitdiff-do
===================================================================
--- git-pasky-0.4.orig/gitdiff-do	2005-04-16 13:13:59.000000000 -0700
+++ git-pasky-0.4/gitdiff-do	2005-04-16 13:18:29.000000000 -0700
@@ -32,7 +32,9 @@ mkbanner () {
 	[ "$labelapp" ] && label="$label  ($labelapp)"
 }
 
-diffdir=$(mktemp -d -t gitdiff.XXXXXX)
+t=${TMPDIR:-/usr/tmp}/gitdiff.$$
+trap 'rm -fr $t.?; trap 0; exit 0' 0 1 2 3 15
+diffdir=$t.1
 diffdir1="$diffdir/$id1"
 diffdir2="$diffdir/$id2"
 mkdir "$diffdir1" "$diffdir2"

-- 
                  I won't rest till it's the best ...
                  Programmer, Linux Scalability
                  Paul Jackson <pj@sgi.com> 1.650.933.1373, 1.925.600.0401