feat: commit hash (#228)

Co-authored-by: DevMiner <[email protected]>
Co-authored-by: nekomona <[email protected]>

platformio-tools.ini

@@ -4,8 +4,13 @@ lib_deps=
   https://github.com/SlimeVR/base64_arduino.git
 monitor_speed = 115200
 framework = arduino
-build_flags = -O2 -std=gnu++17
-build_unflags = -Os -std=gnu++11
+build_flags =
+  !python scripts/get_git_commit.py
+  -O2
+  -std=gnu++17
+build_unflags =
+  -Os
+  -std=gnu++11
 
 [env:BOARD_SLIMEVR]
 platform = espressif8266 @ 4.2.0

platformio.ini

@@ -21,7 +21,8 @@ monitor_filters = colorize
 ;monitor_rts = 0
 ;monitor_dtr = 0
 framework = arduino
-build_flags =
+build_flags = 
+  !python scripts/get_git_commit.py
 ;If you want to set hardcoded WiFi SSID and password, uncomment and edit the lines below
 ;To uncomment, only remove ";" and leave the two spaces in front of the tags
 ; '" - quotes are necessary!

scripts/get_git_commit.py

@@ -0,0 +1,19 @@
+import subprocess
+import os
+
+revision = ""
+
+env_rev = os.environ.get("GIT_REV")
+if not env_rev is None and env_rev != "":
+    revision = env_rev
+else:
+    try:
+        revision = (
+            subprocess.check_output(["git", "rev-parse", "HEAD"])
+            .strip()
+            .decode("utf-8")
+        )
+    except Exception:
+        revision = "NOT_GIT"
+
+print(f"'-DGIT_REV=\"{revision}\"'")

src/serial/serialcommands.cpp

@@ -153,6 +153,9 @@ namespace SerialCommands {
 
         if (parser->equalCmdParam(1, "INFO")) {
             printState();
+
+            // We don't want to print this on every timed state output
+            logger.info("Git commit: %s", GIT_REV);
         }
 
         if (parser->equalCmdParam(1, "CONFIG")) {