tools: make various scripts find the top-levle git dir automatically

coccinelle/run-coccinelle.sh

@@ -1,5 +1,6 @@
 #!/bin/bash -e
 
+top="$(git rev-parse --show-toplevel)"
 files="$(git ls-files ':/*.[ch]')"
 args=
 
@@ -10,7 +11,7 @@ case "$1" in
                 ;;
 esac
 
-for SCRIPT in ${@-coccinelle/*.cocci} ; do
+for SCRIPT in ${@-$top/coccinelle/*.cocci} ; do
         echo "--x-- Processing $SCRIPT --x--"
         TMPFILE=`mktemp`
         echo "+ spatch --sp-file $SCRIPT $args ..."

tools/find-double-newline.sh

@@ -1,11 +1,13 @@
 #!/bin/sh
 # SPDX-License-Identifier: LGPL-2.1+
 
+TOP=`git rev-parse --show-toplevel`
+
 case "$1" in
 
         recdiff)
                 if [ "$2" = "" ] ; then
-                        DIR="$PWD/.."
+                        DIR="$TOP"
                 else
                         DIR="$2"
                 fi
@@ -15,7 +17,7 @@ case "$1" in
 
         recpatch)
                 if [ "$2" = "" ] ; then
-                        DIR="$PWD/.."
+                        DIR="$TOP"
                 else
                         DIR="$2"
                 fi

tools/find-tabs.sh

@@ -1,11 +1,13 @@
 #!/bin/sh
 # SPDX-License-Identifier: LGPL-2.1+
 
+TOP=`git rev-parse --show-toplevel`
+
 case "$1" in
 
         recdiff)
                 if [ "$2" = "" ] ; then
-                        DIR="$PWD/.."
+                        DIR="$TOP"
                 else
                         DIR="$2"
                 fi
@@ -15,7 +17,7 @@ case "$1" in
 
         recpatch)
                 if [ "$2" = "" ] ; then
-                        DIR="$PWD/.."
+                        DIR="$TOP"
                 else
                         DIR="$2"
                 fi