1 files changed, 172 insertions, 0 deletions
diff --git a/scripts/pvscheck.sh b/scripts/pvscheck.sh
new file mode 100755
index 0000000000..32d63646aa
--- /dev/null
+++ b/scripts/pvscheck.sh
@@ -0,0 +1,172 @@
+#!/bin/sh
+set -e
+
+get_jobs_num() {
+  local num="$(cat /proc/cpuinfo | grep -c "^processor")"
+  num="$(echo $(( num + 1 )))"
+  num="${num:-1}"
+  echo $num
+}
+
+help() {
+  echo 'Usage:'
+  echo '  pvscheck.sh [target-directory [branch]]'
+  echo '  pvscheck.sh [--recheck] [target-directory]'
+  echo '  pvscheck.sh --patch [--only-build]'
+  echo
+  echo '    --patch: patch sources in the current directory.'
+  echo '             Does not patch already patched files.'
+  echo '             Does not run analysis.'
+  echo
+  echo '    --only-build: Only patch files in ./build directory.'
+  echo
+  echo '    --recheck: run analysis on a prepared target directory.'
+  echo
+  echo '    target-directory: Directory where build should occur.'
+  echo '                      Default: ../neovim-pvs'
+  echo
+  echo '    branch: Branch to check.'
+  echo '            Default: master.'
+}
+
+get_pvs_comment() {
+  cat > pvs-comment << EOF
+// This is an open source non-commercial project. Dear PVS-Studio, please check
+// it. PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
+
+EOF
+}
+
+install_pvs() {
+  mkdir pvs-studio
+  cd pvs-studio
+
+  curl -o pvs-studio.tar.gz "$PVS_URL"
+  tar xzf pvs-studio.tar.gz
+  rm pvs-studio.tar.gz
+  local pvsdir="$(find . -maxdepth 1 -mindepth 1)"
+  find "$pvsdir" -maxdepth 1 -mindepth 1 -exec mv '{}' . \;
+  rmdir "$pvsdir"
+
+  export PATH="$PWD/bin${PATH+:}${PATH}"
+
+  cd ..
+}
+
+create_compile_commands() {
+  mkdir build
+  cd build
+  env \
+    CC=clang \
+    CFLAGS=' -O0 ' \
+    cmake .. -DCMAKE_BUILD_TYPE=Debug -DCMAKE_INSTALL_PREFIX="$PWD/root"
+  make -j"$(get_jobs_num)"
+  find src/nvim/auto -name '*.test-include.c' -delete
+
+  cd ..
+}
+
+patch_sources() {
+  get_pvs_comment
+
+  local sh_script='
+    pvs_comment="$(cat pvs-comment ; echo -n EOS)"
+    filehead="$(head -c $(( ${#pvs_comment} - 3 )) "$1" ; echo -n EOS)"
+    if test "x$filehead" != "x$pvs_comment" ; then
+      cat pvs-comment "$1" > "$1.tmp"
+      mv "$1.tmp" "$1"
+    fi
+  '
+
+  if test "x$1" != "x--only-build" ; then
+    find \
+      src/nvim test/functional/fixtures test/unit/fixtures \
+      -name '*.c' \
+      -exec /bin/sh -c "$sh_script" - '{}' \;
+  fi
+
+  find \
+    build/src/nvim/auto build/config \
+    -name '*.c' -not -name '*.test-include.c' \
+    -exec /bin/sh -c "$sh_script" - '{}' \;
+
+  rm pvs-comment
+}
+
+run_analysis() {
+  pvs-studio-analyzer \
+    analyze \
+      --threads "$(get_jobs_num)" \
+      --output-file PVS-studio.log \
+      --verbose \
+      --file build/compile_commands.json \
+      --sourcetree-root .
+
+  plog-converter -t xml -o PVS-studio.xml PVS-studio.log
+  plog-converter -t errorfile -o PVS-studio.err PVS-studio.log
+  plog-converter -t tasklist -o PVS-studio.tsk PVS-studio.log
+}
+
+do_check() {
+  local tgt="${1}"
+  local branch="${2}"
+
+  git clone --branch="$branch" . "$tgt"
+
+  cd "$tgt"
+
+  install_pvs
+
+  create_compile_commands
+
+  run_analysis
+}
+
+do_recheck() {
+  local tgt="${1}"
+
+  cd "$tgt"
+
+  export PATH="$PWD/pvs-studio/bin${PATH+:}${PATH}"
+
+  run_analysis
+}
+
+main() {
+  local PVS_URL="http://files.viva64.com/pvs-studio-6.14.21446.1-x86_64.tgz"
+
+  if test "x$1" = "x--help" ; then
+    help
+    return
+  fi
+
+  set -x
+
+  if test "x$1" = "x--patch" ; then
+    shift
+    if test "x$1" = "x--only-build" ; then
+      shift
+      patch_sources --only-build
+    else
+      patch_sources
+    fi
+    exit $?
+  fi
+
+  local recheck=
+  if test "x$1" = "x--recheck" ; then
+    recheck=1
+    shift
+  fi
+
+  local tgt="${1:-$PWD/../neovim-pvs}"
+  local branch="${2:-master}"
+
+  if test "x$recheck" = "x" ; then
+    do_check "$tgt" "$branch"
+  else
+    do_recheck "$tgt"
+  fi
+}
+
+main "$@"