gstreamer/scripts/git-hooks/pre-commit.hook
Nicolas Dufresne 3037fde5eb Move commit gst-indent hook to the root
This renable at meson setup time the installation of the gst-indent
commit hook. The hooks were kept from gst-devtools as this set supports
both C checks and Python checks.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/904>
2021-09-24 17:47:01 -03:00

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#!/bin/sh
#
# Check that the code follows a consistant code style
#
# Check for existence of indent, and error out if not present.
# On some *bsd systems the binary seems to be called gnunindent,
# so check for that first.
version=`gnuindent --version 2>/dev/null`
if test "x$version" = "x"; then
version=`gindent --version 2>/dev/null`
if test "x$version" = "x"; then
version=`indent --version 2>/dev/null`
if test "x$version" = "x"; then
echo "GStreamer git pre-commit hook:"
echo "Did not find GNU indent, please install it before continuing."
exit 1
else
INDENT=indent
fi
else
INDENT=gindent
fi
else
INDENT=gnuindent
fi
case `$INDENT --version` in
GNU*)
;;
default)
echo "GStreamer git pre-commit hook:"
echo "Did not find GNU indent, please install it before continuing."
echo "(Found $INDENT, but it doesn't seem to be GNU indent)"
exit 1
;;
esac
INDENT_PARAMETERS="--braces-on-if-line \
--case-brace-indentation0 \
--case-indentation2 \
--braces-after-struct-decl-line \
--line-length80 \
--no-tabs \
--cuddle-else \
--dont-line-up-parentheses \
--continuation-indentation4 \
--honour-newlines \
--tab-size8 \
--indent-level2 \
--leave-preprocessor-space"
echo "--Checking style--"
for file in `git diff-index --cached --name-only HEAD --diff-filter=ACMR| grep "\.c$"` ; do
# nf is the temporary checkout. This makes sure we check against the
# revision in the index (and not the checked out version).
nf=`git checkout-index --temp ${file} | cut -f 1`
newfile=`mktemp /tmp/${nf}.XXXXXX` || exit 1
$INDENT ${INDENT_PARAMETERS} \
$nf -o $newfile 2>> /dev/null
# FIXME: Call indent twice as it tends to do line-breaks
# different for every second call.
$INDENT ${INDENT_PARAMETERS} \
$newfile 2>> /dev/null
diff -u -p "${nf}" "${newfile}"
r=$?
rm "${newfile}"
rm "${nf}"
if [ $r != 0 ] ; then
echo "================================================================================================="
echo " Code style error in: $file "
echo " "
echo " Please fix before committing. Don't forget to run git add before trying to commit again. "
echo " If the whole file is to be committed, this should work (run from the top-level directory): "
echo " "
echo " gst-indent $file; git add $file; git commit"
echo " "
echo "================================================================================================="
exit 1
fi
done
echo "--Checking style pass--"