DVX_GUI/cppcheck.sh

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#!/bin/bash
#
# cppcheck.sh -- static analysis for the DVX source tree.
#
# Usage:
# ./cppcheck.sh # whole tree
# ./cppcheck.sh src/widgets # one subtree
# ./cppcheck.sh src/libs/kpunch/texthelp/textHelp.c # one file
#
# Exits 0 even when warnings are found -- cppcheck's exit status is
# not useful as a gate for this codebase (too many DJGPP-isms it can't
# resolve). Read the output.
set -e
cd "$(dirname "$0")"
TARGETS="${@:-src}"
INCLUDES=(
-Isrc/libs/kpunch/libdvx
-Isrc/libs/kpunch/libdvx/platform
-Isrc/libs/kpunch/libdvx/thirdparty
-Isrc/libs/kpunch/libtasks
-Isrc/libs/kpunch/texthelp
-Isrc/libs/kpunch/listhelp
-Isrc/libs/kpunch/dvxshell
-Isrc/libs/kpunch/taskmgr
-Isrc/libs/kpunch/serial
-Isrc/widgets/kpunch
-Isrc/apps/kpunch/dvxbasic
-Isrc/apps/kpunch/dvxbasic/compiler
-Isrc/apps/kpunch/dvxbasic/runtime
-Isrc/apps/kpunch/dvxbasic/formrt
)
# DJGPP / platform macros cppcheck can't find. Expand them to nothing
# so the preprocessor leaves the code visible to the analyser instead
# of eliding whole functions behind unknown macro calls.
DEFINES=(
-DDXE_EXPORT=
-DDVX_WIDGET_IMPL
-D__DJGPP__=2
)
# Suppressions: things cppcheck flags that aren't actually wrong for
# this codebase. Keep the list short so real issues stay visible.
SUPPRESS=(
--suppress=missingIncludeSystem # system headers aren't on host
--suppress=unusedFunction # many public exports look "unused" to a .c-only scan
--suppress=constParameterPointer # noisy on this style
--suppress=constVariablePointer # ditto
--suppress=normalCheckLevelMaxBranches
# stb_ds arrput is a macro -- cppcheck can't see that the value
# (including heap pointers inside it) is stored, so it reports
# spurious null-derefs on the stb_ds dynamic-array handle.
--suppress=nullPointerRedundantCheck
--suppress=nullPointerArithmeticRedundantCheck
# Thirdparty headers -- their own style isn't our problem.
--suppress='*:src/libs/kpunch/libdvx/thirdparty/*'
--suppress='*:src/libs/kpunch/sql/thirdparty/*'
)
exec cppcheck \
--enable=warning,style,performance,portability \
--inline-suppr \
--std=c99 \
--platform=unix32 \
--quiet \
-j"$(nproc)" \
-i src/libs/kpunch/sql/thirdparty \
-i src/libs/kpunch/libdvx/thirdparty \
"${INCLUDES[@]}" \
"${DEFINES[@]}" \
"${SUPPRESS[@]}" \
$TARGETS