diff mbox series

[libnetfilter_queue,26/32] build: Shave some time off build

Message ID 20240315073347.22628-27-duncan_roe@optusnet.com.au
State New
Headers show
Series [libnetfilter_queue,01/32] src: Convert nfq_open() to use libmnl | expand

Commit Message

Duncan Roe March 15, 2024, 7:33 a.m. UTC 
Modify function mygrep in build_man.sh to use pipes rather than the
temporary files. Saves ~20% elapsed time in a make with no compiles on my
system although real & user times increase by about 10%.

Signed-off-by: Duncan Roe <duncan_roe@optusnet.com.au>
---
 doxygen/build_man.sh | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)
diff mbox series

Patch

diff --git a/doxygen/build_man.sh b/doxygen/build_man.sh
index 643ad42..0590009 100755
--- a/doxygen/build_man.sh
+++ b/doxygen/build_man.sh
@@ -304,15 +304,12 @@  delete_lines(){
 }
 
 mygrep(){
-  set +e
-  grep -En "$1" $2 2>/dev/null >$fileH
-  [ $? -ne 0 ] && linnum=0 ||\
-    { head -n1 $fileH >$fileG; linnum=$(cat $fileG | cut -f1 -d:); }
-  set -e
+  linnum=$(grep -En "$1" $2 2>/dev/null | head -n1 | tee $fileG | cut -f1 -d:)
+  [ $linnum ] || linnum=0
 }
 
 make_temp_files(){
-  temps="A B C G H"
+  temps="A B C G"
   for i in $temps
   do declare -g file$i=$(mktemp)
   done