gh_actions: add PR labeler action

.github/labeler.yml

@@ -0,0 +1,154 @@
+"Area: arduino API":
+  - sys/arduino/**/*
+
+"Area: BLE":
+  - pkg/nimble/**/*
+  - sys/net/ble/**/*
+  - sys/include/net/bluetil/**/*
+  - sys/include/net/skald/**/*
+  - sys/include/net/skald.h
+
+"Area: boards":
+  - boards/**/*
+
+"Area: build system":
+  - Makefile.*
+  - makefiles/**/*
+  - ./**/*.mk
+
+"Area: CI":
+  - .circleci/**/*
+  - .github/**/*.yml
+  - .murdock
+
+"Area: CoAP":
+  - sys/net/application_layer/*coap/**/*
+  - sys/include/net/*coap*/**/*
+
+"Area: core":
+  - core/**/*
+
+"Area: cpu":
+  - cpu/**/*
+
+"Area: doc":
+  - doc/**/*
+  - ./*.md
+
+"Area: drivers":
+  - drivers/**/*
+
+"Area: examples":
+  - examples/**/*
+
+"Area: Kconfig":
+  - dist/tools/kconfiglib/**/*
+  - makefiles/kconfig.mk
+  - kconfigs/*
+  - Kconfig
+
+"Area: LoRa":
+  - drivers/llcc68/**/*
+  - drivers/sx126x/**/*
+  - drivers/sx127x/**/*
+  - drivers/include/llcc68.h
+  - drivers/include/sx126x.h
+  - drivers/include/sx127x.h
+  - pkg/semtech-loramac/**/*
+  - sys/net/lora/**/*
+  - sys/net/gnrc/link_layer/lorawan/**/*
+  - sys/include/net/lorawan/**/*
+  - sys/include/net/gnrc/lorawan/**/*
+  - sys/include/net/gnrc/lorawan.h
+  - sys/include/net/lora.h
+  - sys/include/net/loramac.h
+
+"Area: network":
+  - sys/net/**/*
+  - sys/include/net/**/*
+  - pkg/lwip/**/*
+  - pkg/openthread/**/*
+  - pkg/openwsn/**/*
+  - pkg/paho-mqtt/**/*
+
+"Area: OTA":
+  - sys/suit/**/*
+  - sys/include/suit/**/*
+  - sys/include/suit.h
+
+"Area: pkg":
+  - pkg/**/*
+
+"Area: SAUL":
+  - drivers/saul/**/*
+  - drivers/include/saul/**/*
+  - drivers/include/saul.h
+  - sys/saul_reg/**/*
+  - sys/include/saul_reg.h
+
+"Area: sys":
+  - sys/**/*
+
+"Area: tests":
+  - tests/**/*
+  - fuzzing/**/*
+  - dist/pythonlibs/**/*
+  - makefiles/tests/**/*
+
+"Area: timers":
+  - sys/*timer/**/*
+  - sys/include/*timer/**/*
+  - sys/include/*timer.h
+
+"Area: toolchain":
+  - makefiles/toolchain/**/*
+
+"Area: tools":
+  - dist/tools/**/*
+  - dist/testbed-support/**/*
+  - makefiles/tools/**/*
+
+"Area: USB":
+  - sys/usb/**/*
+  - sys/include/usb/**/*
+  - sys/include/usb.h
+
+"Platform: native":
+  - boards/native/**/*
+  - cpu/native/**/*
+
+"Platform: ARM":
+  - cpu/arm7_common/**/*
+  - cpu/cortexm_common/**/*
+  - cpu/cc2*/**/*
+  - cpu/efm32/**/*
+  - cpu/kinetis/**/*
+  - cpu/lm4f120/**/*
+  - cpu/lpc*/**/*
+  - cpu/nrf5*/**/*
+  - cpu/qn908x/**/*
+  - cpu/sam*/**/*
+  - cpu/stellaris_common/**/*
+  - cpu/stm32/**/*
+  - makefiles/arch/cortexm.inc.mk
+
+"Platform: AVR":
+  - cpu/atmega*/**/*
+  - cpu/avr8_common/**/*
+  - makefiles/arch/avr8.inc.mk
+
+"Platform: ESP":
+  - cpu/esp*/**/*
+
+"Platform: MIPS":
+  - cpu/mips*/**/*
+  - makefiles/arch/mips.inc.mk
+
+"Platform: MSP":
+  - cpu/msp*/**/*
+  - makefiles/arch/msp430.inc.mk
+
+"Platform: RISC-V":
+  - cpu/riscv_common/**/*
+  - cpu/fe310/**/*
+  - makefiles/arch/riscv.inc.mk

.github/workflows/labeler.yml

@@ -0,0 +1,14 @@
+name: pr-labeler
+
+on:
+  pull_request_target:
+    types: [opened, synchronize, reopened]
+
+jobs:
+  triage:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/labeler@main
+      with:
+        repo-token: "${{ secrets.GITHUB_TOKEN }}"
+        sync-labels: true