From faf9a065ba83e4e81e1f78d0404fc890824b8379 Mon Sep 17 00:00:00 2001
From: Ivan Kravets <me@ikravets.com>
Date: Sat, 24 Nov 2018 15:29:21 +0200
Subject: [PATCH] Implement "erase" target // Resolve #127

---
 builder/main.py | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/builder/main.py b/builder/main.py
index b2d0156..d8846c5 100644
--- a/builder/main.py
+++ b/builder/main.py
@@ -146,6 +146,12 @@ env.Replace(
     SIZECHECKCMD="$SIZETOOL -A -d $SOURCES",
     SIZEPRINTCMD="$SIZETOOL -B -d $SOURCES",
 
+    ERASEFLAGS=[
+        "--chip", "esp32",
+        "--port", '"$UPLOAD_PORT"'
+    ],
+    ERASECMD='"$PYTHONEXE" "$OBJCOPY" $ERASEFLAGS erase_flash',
+
     MKSPIFFSTOOL="mkspiffs_${PIOPLATFORM}_${PIOFRAMEWORK}",
     PROGSUFFIX=".elf"
 )
@@ -331,6 +337,17 @@ else:
 
 AlwaysBuild(env.Alias(["upload", "uploadfs"], target_firm, upload_actions))
 
+#
+# Target: Erase Flash
+#
+
+AlwaysBuild(
+    env.Alias("erase", None, [
+        env.VerboseAction(env.AutodetectUploadPort,
+                          "Looking for serial port..."),
+        env.VerboseAction("$ERASECMD", "Ready for erasing")
+    ]))
+
 #
 # Default targets
 #