Trigger workflows more selectively (#355)

Co-authored-by: Nicolas Hug <contact@nicolas-hug.com>

Author: scotts

.github/workflows/build_ffmpeg.yaml

@@ -14,6 +14,7 @@ on:
   pull_request:
     paths:
       - packaging/build_ffmpeg.sh
+      - .github/workflows/build_ffmpeg.yaml # self reference
   schedule:
     - cron: '0 0 * * 0'  # on sunday
 

.github/workflows/cpp_tests.yaml

@@ -4,6 +4,10 @@ on:
   push:
     branches: [ main ]
   pull_request:
+    paths:
+      - src/torchcodec/*
+      - test/*
+      - .github/workflows/cpp_tests.yaml # self reference
 
 concurrency:
   group: unit-test${{ github.workflow }}-${{ github.ref == 'refs/heads/main' && github.run_number || github.ref }}

.github/workflows/docs.yaml

@@ -4,6 +4,10 @@ on:
   push:
     branches: [ main ]
   pull_request:
+    paths:
+      - src/torchcodec/*
+      - docs/*
+      - .github/workflows/docs.yaml # self reference
 
 permissions:
   id-token: write

.github/workflows/linux_cuda_wheel.yaml

@@ -2,6 +2,12 @@ name: Build and test Linux CUDA wheels
 
 on:
   pull_request:
+    paths:
+      - src/torchcodec/*
+      - benchmarks/*
+      - packaging/*
+      - test/*
+      - .github/workflows/linux_cuda_wheel.yaml # self reference
   push:
     branches:
       - nightly

.github/workflows/linux_wheel.yaml

@@ -2,6 +2,11 @@ name: Build and test Linux wheel
 
 on:
   pull_request:
+    paths:
+      - src/torchcodec/*
+      - packaging/*
+      - test/*
+      - .github/workflows/linux_wheel.yaml # self reference
   push:
     branches:
       - nightly

.github/workflows/macos_wheel.yaml

@@ -2,6 +2,11 @@ name: Build and test MacOS wheel
 
 on:
   pull_request:
+    paths:
+      - src/torchcodec/*
+      - packaging/*
+      - test/*
+      - .github/workflows/macos_wheel.yaml # self reference
   push:
     branches:
       - nightly

.github/workflows/reference_resources.yaml

@@ -5,6 +5,7 @@ on:
   pull_request:
     paths:
       - test/generate_reference_resources.sh
+      - .github/workflows/reference_resources.yaml # self reference
   schedule:
     - cron: '0 0 * * 0'  # on sunday