trim useless uses of cat

8 files changed, 32 insertions, 47 deletions

diff --git a/build/makegprof b/build/makegprof
index bfe6922d7..967238b8e 100755
--- a/build/makegprof
+++ b/build/makegprof
@@ -3,5 +3,5 @@
 mv ../run/gmon.out .
 gprof ../run/bin/manaplus >gprof.txt
 gprof --inline-file-names ../run/bin/manaplus >gprofi.txt
-cat gprof.txt | gprof2dot.py >gprof.dot
-cat gprof.dot | dot -Tpng -o gprof.png
+gprof2dot.py <gprof.txt >gprof.dot
+dot -Tpng -o gprof.png <gprof.dot
diff --git a/tools/ci/jobs/deheader2.sh b/tools/ci/jobs/deheader2.sh
index 5862e555e..521f9266f 100755
--- a/tools/ci/jobs/deheader2.sh
+++ b/tools/ci/jobs/deheader2.sh
@@ -2,14 +2,12 @@
 
 export LOGFILE2=logs/deheader2.log
 
-export DATA=$(cat ${LOGFILE})
-if [[ -z "${DATA}" ]]; then
+if [[ ! -s "$LOGFILE" ]]; then
     echo "Empty output. Probably wrong search flags."
     exit 1
 fi
 
-export DATA=$(grep "error:" ${LOGFILE})
-if [[ -n "${DATA}" ]]; then
+if grep "error:" "$LOGFILE"; then
     echo "Compilation error found"
     exit 1
 fi
@@ -31,9 +29,9 @@ grep "deheader:" "${LOGFILE}" \
          -e "deheader: remove <climits> from ./src/units.cpp" \
     > "${LOGFILE2}"
 
-export DATA=$(cat ${LOGFILE2})
-if [[ -n "${DATA}" ]]; then
-    echo "Wrong include files found"
-    echo ${DATA}
+
+if [[ -s "$LOGFILE2" ]]; then
+    echo "Wrong include files found:"
+    cat "$LOGFILE2"
     exit 1
 fi
diff --git a/tools/ci/jobs/imagemagiccheck.sh b/tools/ci/jobs/imagemagiccheck.sh
index 564026f1c..6d2e75060 100755
--- a/tools/ci/jobs/imagemagiccheck.sh
+++ b/tools/ci/jobs/imagemagiccheck.sh
@@ -10,9 +10,8 @@ rm ${LOG}
 find -H $DIR -type f -name "*.png" -exec ./tools/ci/scripts/icccheckfile.sh {} \; >${LOG}
 check_error $?
 
-export RES=$(cat ${LOG})
-if [[ -n "${RES}" ]]; then
-    echo "Detected icc profiles"
+if [[ -s "$LOG" ]]; then
+    echo "Detected icc profiles:"
     cat ${LOG}
     exit 1
 fi
diff --git a/tools/ci/jobs/nsiqcppstyle.sh b/tools/ci/jobs/nsiqcppstyle.sh
index a6db88cc9..d4a5dd449 100755
--- a/tools/ci/jobs/nsiqcppstyle.sh
+++ b/tools/ci/jobs/nsiqcppstyle.sh
@@ -14,20 +14,18 @@ rm -rf nsiqcppstyle.git
          -e "/debug/" \
     > logs/nsiqcppstyle1.log
 
-cat logs/nsiqcppstyle1.log \
-  | grep -v -E \
-         -e "gamemodifiers[.]cpp(.+):  Incorrect align on long parameter list in front of '(N_|{|})'" \
-         -e "graphics_calcImageRect[.]hpp(.+):  function [(]calcTileVertexesInline[)] has non named parameter" \
-         -e "dye[.]cpp(.+):  Do not use goto keyword" \
-         -e "item/item[.]cpp(.+):  function [(]dragDrop[)] has non named parameter" \
-         -e "windowmenu[.]cpp(.+):  function [(]addButton[)] has non named parameter" \
-         -e "windowmenu[.]cpp(.+):  Incorrect align on long parameter list in front of '(.|Visible_true)', it should be aligen in column 15" \
-         -e "channeltab[.]h(.+):  Incorrect align on long parameter list in front of 'const'" \
-         -e "/enums/simpletypes/(.+):  function [(]defIntEnum[)] has non named parameter" \
-    > "${ERRFILE}"
+grep -v -E \
+     -e "gamemodifiers[.]cpp(.+):  Incorrect align on long parameter list in front of '(N_|{|})'" \
+     -e "graphics_calcImageRect[.]hpp(.+):  function [(]calcTileVertexesInline[)] has non named parameter" \
+     -e "dye[.]cpp(.+):  Do not use goto keyword" \
+     -e "item/item[.]cpp(.+):  function [(]dragDrop[)] has non named parameter" \
+     -e "windowmenu[.]cpp(.+):  function [(]addButton[)] has non named parameter" \
+     -e "windowmenu[.]cpp(.+):  Incorrect align on long parameter list in front of '(.|Visible_true)', it should be aligen in column 15" \
+     -e "channeltab[.]h(.+):  Incorrect align on long parameter list in front of 'const'" \
+     -e "/enums/simpletypes/(.+):  function [(]defIntEnum[)] has non named parameter" \
+     logs/nsiqcppstyle1.log > "${ERRFILE}"
 
-export data=$(cat ${ERRFILE})
-if [ "$DATA" != "" ]; then
+if [[ -s "${ERRFILE}" ]]; then
     echo "Warnings detected"
     cat ${ERRFILE}
 fi
diff --git a/tools/ci/jobs/pngcheck.sh b/tools/ci/jobs/pngcheck.sh
index 2fd0a18d5..e4effc2bf 100755
--- a/tools/ci/jobs/pngcheck.sh
+++ b/tools/ci/jobs/pngcheck.sh
@@ -11,8 +11,8 @@ rm ${LOG2}
 find -H . -type f -name "*.png" -exec pngcheck {} \; >${LOG1}
 
 grep -v "32-bit RGB+alpha, non-interlaced, " ${LOG1} >${LOG2}
-export DATA=$(cat pngcheck2.log)
-if [[ -n "${DATA}" ]]; then
+
+if [[ -s "$LOG2" ]]; then
     echo "Images must be in 32 bit RGBA and non-interlanced"
     echo "Wrong images format found:"
     cat ${LOG2}
diff --git a/tools/ci/scripts/init.sh b/tools/ci/scripts/init.sh
index 656a4d765..9512e9b66 100755
--- a/tools/ci/scripts/init.sh
+++ b/tools/ci/scripts/init.sh
@@ -41,10 +41,8 @@ function update_repos {
         echo "Running from shell. Skipping update repos"
         return
     fi
-    export DATA=$(cat /etc/resolv.conf|grep "nameserver 1.10.100.101")
-    echo "${DATA}"
-    if [ "$DATA" != "" ];
-    then
+
+    if grep "nameserver 1.10.100.101" /etc/resolv.conf; then
         echo "Detected local runner"
         sed -i 's!http://httpredir.debian.org/debian!http://1.10.100.103/debian!' /etc/apt/sources.list
         sed -i 's!http://deb.debian.org/debian!http://1.10.100.103/debian!' /etc/apt/sources.list
@@ -206,9 +204,7 @@ function run_gcov {
 }
 
 function run_check_warnings {
-    DATA=$(cat $ERRFILE)
-    if [ "$DATA" != "" ];
-    then
+    if [[ -s "$ERRFILE" ]]; then
         cat $ERRFILE
         exit 1
     fi
@@ -218,9 +214,7 @@ function run_h {
     rm $ERRFILE
     echo "$CC -c -x c++ $* $includes */*/*/*/*.h */*/*/*.h */*/*.h */*.h *.h"
     $CC -c -x c++ $* $includes */*/*/*/*.h */*/*/*.h */*/*.h */*.h *.h 2>$ERRFILE
-    DATA=$(cat $ERRFILE)
-    if [ "$DATA" != "" ];
-    then
+    if [[ -s "$ERRFILE" ]]; then
         cat $ERRFILE
         exit 1
     fi
diff --git a/tools/ci/scripts/runtest.sh b/tools/ci/scripts/runtest.sh
index 7707a34aa..4b0320fed 100755
--- a/tools/ci/scripts/runtest.sh
+++ b/tools/ci/scripts/runtest.sh
@@ -74,18 +74,15 @@ function kill_app {
 }
 
 function final_log {
-    export DATA=$(cat logs/run.log)
-    if [[ -z "${DATA}" ]]; then
+    if [[ ! -s logs/run.log ]]; then
         echo "Error: no output"
         exit 1
     fi
 
     cat logs/run.log
 
-    export DATA=$(grep "[.]cpp" logs/run.log)
-    if [[ -n "${DATA}" ]]; then
-        echo "Error: possible leak detected"
-        echo "${DATA}"
+    if grep "[.]cpp" logs/run.log; then
+        echo "Error: possible leak detected, see above"
         exit 1
     fi
 }
diff --git a/tools/ci/scripts/updaterepos.sh b/tools/ci/scripts/updaterepos.sh
index 167898a83..8ac6d6c44 100755
--- a/tools/ci/scripts/updaterepos.sh
+++ b/tools/ci/scripts/updaterepos.sh
@@ -4,9 +4,8 @@ if [[ "$RUNFROMSHELL" != "" ]]; then
     echo "Running from shell. Skipping update repos"
     exit 0
 fi
-export DATA=$(cat /etc/resolv.conf|grep "nameserver 1.10.100.101")
-echo "${DATA}"
-if [ "$DATA" != "" ]; then
+
+if grep "nameserver 1.10.100.101" /etc/resolv.conf; then
     echo "Detected local runner"
     sed -i 's!http://httpredir.debian.org/debian!http://1.10.100.103/debian!' /etc/apt/sources.list || true
     sed -i 's!http://deb.debian.org/debian!http://1.10.100.103/debian!' /etc/apt/sources.list || true