Skipping Travis/Appveyor build for non-code changes

.appveyor.yml

@@ -56,3 +56,10 @@ test_script:
       }
 
       & $env:BASH -lc "cd '$env:APPVEYOR_BUILD_FOLDER' && ./hashcat.exe -m 0 --show *ple0.hash"
+
+only_commits:
+  files:
+    - src/**/*
+    - include/*
+    - deps/**/*
+    - Makefile

.travis.yml

@@ -5,5 +5,12 @@ language: c
 compiler:
   - clang
   - gcc
+before_install:
+  - |
+      if ! git diff --name-only $TRAVIS_COMMIT_RANGE | grep -qvE '(.md)|(.vc)|(.tc)|(.pm)|(.diff)|(.pl)|(.sh)|(.cmd)|(.hash)|(.cl)|(.yaml)|(.rule)|(.hckmap)|(.charset)|(.yml)|(.editorconfig)|(.gitattributes)|(.gitignore)|(.lock)|(OpenCL/)|(.hcmask)'
+      then
+        echo "No code changes detected, skip the CI build."
+        exit
+      fi
 script:
   - make