Add a mocked ADB script

It's probably brittle and definitely incomplete, but it allows purr to
boot correctly in an environment without adb or a device present.

Author: alpiccioni

makefile

@@ -1,11 +1,14 @@
 OUTDIR?=$(CURDIR)/out
 SRCDIR?=$(CURDIR)/src
 RESDIR?=$(CURDIR)/res
+TESTDIR?=$(CURDIR)/tests
 
 PURRFILE ?=$(OUTDIR)/purr
 PURRFILE_TEMP ?=$(OUTDIR)/purr_temp
 
-all: purr
+ADBMOCKFILE ?=$(OUTDIR)/adb_mock
+
+all: purr adb_mock
 
 .PHONY: purr
 
@@ -69,7 +72,17 @@ purr:
 	mv -f $(PURRFILE_TEMP) $(PURRFILE)
 
 	# Grant execution permission.
-	chmod 777 $(PURRFILE)
+	chmod +rwx $(PURRFILE)
+
+.PHONY: adb_mock
+
+adb_mock:
+	mkdir -p $(OUTDIR)
+	echo "" > $(ADBMOCKFILE)
+
+	cat $(TESTDIR)/mocks/adb_mock.sh >> "$(ADBMOCKFILE)"
+
+	chmod +rwx $(ADBMOCKFILE)
 
 .PHONY: clean
 

tests/mocks/adb_mock.sh

@@ -0,0 +1,24 @@
+#!/usr/bin/env zsh
+
+if grep -q "devices" <<< $@; then
+	echo "List of devices attached"
+	echo "emulator-5554	device"
+elif grep -q "wait-for-device" <<< $@; then
+	sleep 0.01;
+elif grep -q "logcat" <<< $@; then
+	cat <<-END
+		--------- beginning of system
+		11-30 11:51:17.111   520   565 V DisplayPowerController2[0]: Brightness [0.39763778] reason changing to: 'manual', previous reason: 'manual [ dim ]'.
+		11-30 11:51:17.111   520   565 I DisplayPowerController2[0]: BrightnessEvent: disp=0, physDisp=local:4619827259835644672, brt=0.39763778, initBrt=0.05, rcmdBrt=NaN, preBrt=NaN, lux=0.0, preLux=0.0, hbmMax=1.0, hbmMode=off, rbcStrength=0, thrmMax=1.0, powerFactor=1.0, wasShortTermModelActive=false, flags=, reason=manual, autoBrightness=false, strategy=InvalidBrightnessStrategy
+		--------- beginning of main
+		11-30 11:51:17.159   397   397 I android.hardware.lights-service.example: Lights setting state for id=1 to color ff101010
+		11-30 11:51:17.186   397   397 I android.hardware.lights-service.example: Lights setting state for id=1 to color ff111111
+		11-30 11:51:17.197   397   397 I android.hardware.lights-service.example: Lights setting state for id=1 to color ff121212
+		11-30 11:51:17.214   397   397 I android.hardware.lights-service.example: Lights setting state for id=1 to color ff131313
+		11-30 11:51:17.231   397   397 I android.hardware.lights-service.example: Lights setting state for id=1 to color ff141414
+		11-30 11:51:17.247   397   397 I android.hardware.lights-service.example: Lights setting state for id=1 to color ff151515
+		11-30 11:51:17.264   397   397 I android.hardware.lights-service.example: Lights setting state for id=1 to color ff161616
+		11-30 11:51:17.281   397   397 I android.hardware.lights-service.example: Lights setting state for id=1 to color ff171717
+	END
+	sleep infinity
+fi