Skipped osx build in tags and linting only changed files

Author: edomora97

.travis.yml

@@ -49,7 +49,8 @@ matrix:
             --cap-add SYS_PTRACE
             edomora97/task-maker-builder-$TOOLCHAIN:latest
             /build/tools/compile_and_lint.sh
-    - os: osx
+    - if: NOT branch =~ /^v.*/
+      os: osx
       env:
         - WHAT=test
         - TOOLCHAIN=osx

hooks/lint-head

@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+
+SCRIPTPATH=$(dirname $(readlink -f $0))
+WORKDIR=${SCRIPTPATH}/..
+
+cd $WORKDIR
+
+FILES=$(git diff-tree --no-commit-id --name-only -r HEAD | grep -P "\.[ch]pp")
+SKIPPEDFILES=(cpp/util/sha256.hpp cpp/util/sha256.cpp)
+
+ret=0
+for file in ${FILES}; do
+  if [[ " ${SKIPPEDFILES[@]} " =~ " ${file} " ]]; then
+    echo "== Skipped ${file} =="
+    continue
+  fi
+  $SCRIPTPATH/lint-cpp-file $file
+  ret=$((ret+$?))
+done
+
+exit $ret

tools/compile_and_lint.sh

@@ -6,4 +6,4 @@ python3 -m venv /tmp/venv --system-site-packages
 . /tmp/venv/bin/activate
 cmake -H. -Bbuild -DHUNTER_ENABLED=OFF -DTRAVIS=ON
 cmake --build build
-./hooks/lint-all
+./hooks/lint-head