First commit
Signed-off-by: <inaky.perez-gonzalez@intel.com>
diff --git a/scripts/check_known_checkpatch_issues.sh b/scripts/check_known_checkpatch_issues.sh
new file mode 100755
index 0000000..5c4cb0a
--- /dev/null
+++ b/scripts/check_known_checkpatch_issues.sh
@@ -0,0 +1,169 @@
+#!/bin/bash
+
+#
+# Copyright (c) 2015 Intel Corporation.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#
+# 1) Redistributions of source code must retain the above copyright notice,
+# this list of conditions and the following disclaimer.
+#
+# 2) Redistributions in binary form must reproduce the above copyright notice,
+# this list of conditions and the following disclaimer in the documentation
+# and/or other materials provided with the distribution.
+#
+# 3) Neither the name of Intel Corporation nor the names of its contributors
+# may be used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+
+
+# crawls the source tree to find out the amount of checkpatch issues
+# and optionally update scripts/known_checkpatch_issues
+# usage: check_known_checkpatch_issues.sh [-u]
+# where: -u updates the known_checkpatch_issues db and commits it
+# -q is the quiet mode (don't display the diff on stdout)
+
+exe_name=$(basename $0)
+
+do_checkpatch_bin=${VXMICRO_BASE}/scripts/do_checkpatch.sh
+timestamp_bin=${VXMICRO_BASE}/scripts/timestamp
+
+declare update=n
+declare quiet=n
+
+function usage {
+ printf "usage: %s [-u][-q]\n" ${exe_name} >&2
+}
+
+function fail {
+ usage
+ exit -1
+}
+function verify_needed {
+ needed="\
+ ${do_checkpatch_bin} \
+ ${timestamp_bin} \
+ "
+ for i in ${needed}; do
+ type $i &>/dev/null
+ if [ $? != 0 ]; then
+ printf "need '%s' but not found in PATH\n" $i >&2
+ exit -1
+ fi
+ done
+}
+
+function get_opts {
+ declare -r optstr="quh"
+ while getopts ${optstr} opt; do
+ case ${opt} in
+ u) update=y ;;
+ q) quiet=y ;;
+ h) usage; exit 0 ;;
+ *) fail ;;
+ esac
+ done
+}
+
+verify_needed
+get_opts $@
+
+do_checkpatch=${do_checkpatch_bin}
+timestamp="${timestamp_bin} -u"
+ts=$(${timestamp})
+uid=$(id -u)
+pid=$$
+suffix=${uid}-${pid}-${ts}
+checkpatch_results=/tmp/checkpatch.results-${suffix}
+known_checkpatch_issues=${VXMICRO_BASE}/scripts/known_checkpatch_issues
+checkpatch_issues=/tmp/checkpatch_issues-${suffix}
+git_log_params="\
+ --abbrev=8 \
+ --abbrev-commit \
+"
+
+commit_id_str=$(git log ${git_log_params} HEAD | head -n 1)
+echo ${commit_id_str} > ${checkpatch_issues}
+
+${do_checkpatch} ${checkpatch_results} >> ${checkpatch_issues}
+
+diff_file=/tmp/checkpatch.results.diff-${suffix}
+diff -u ${known_checkpatch_issues} ${checkpatch_issues} > ${diff_file}
+
+if [ ${quiet} = n ]; then
+ cat ${diff_file}
+fi
+
+# find all lines that starts with '+' but not '+commit' or '+++ diff'
+minuses_err_str=(\
+ $(cat ${diff_file} | \
+ grep -v -E "^\-\-\-" | grep -v -E "^\-commit " | grep -E "^\-" | \
+ awk '{print $1}' | cut -d\- -f 2-) \
+)
+minuses_num_err=(\
+ $(cat ${diff_file} | \
+ grep -v -E "^\-\-\-" | grep -v -E "^\-commit " | grep -E "^\-" | \
+ awk '{print $2}') \
+)
+plusses_err_str=(\
+ $(cat ${diff_file} | \
+ grep -v -E "^\+\+\+" | grep -v -E "^\+commit " | grep -E "^\+" | \
+ awk '{print $1}' | cut -d\+ -f 2-) \
+)
+plusses_num_err=(\
+ $(cat ${diff_file} | \
+ grep -v -E "^\+\+\+" | grep -v -E "^\+commit " | grep -E "^\+" | \
+ awk '{print $2}') \
+)
+
+exit_code=0
+declare -i num_plusses=${#plusses_num_err[@]}
+declare -i num_minuses=${#minuses_num_err[@]}
+declare -i test_num=${num_plusses}
+while [ ${test_num} -gt 0 ]; do
+ test_num+=-1
+ match=n
+ declare -i i=${num_minuses}
+ while [ $i -gt 0 ]; do
+ i+=-1
+ if [ ${plusses_err_str[${test_num}]} = ${minuses_err_str[$i]} ]; then
+ n_minus=${minuses_num_err[$i]}
+ n_plus=${plusses_num_err[${test_num}]}
+ if [ ${n_plus} -gt ${n_minus} ]; then
+ exit_code=1
+ break 2
+ fi
+ match=y
+ break 1
+ fi
+ done
+
+ if [ ${match} = n ]; then
+ # there was no match for the plus line, so that is a new error
+ exit_code=1
+ break 1
+ fi
+done
+
+if [ ${update} = y ]; then
+ msg="known_checkpatch_issues: updating to ${commit_id_str}"
+ cp ${checkpatch_issues} ${known_checkpatch_issues}
+ git add ${known_checkpatch_issues}
+ git commit -m "${msg}"
+fi
+
+exit ${exit_code}
