Undeclared variable makes the OTA update compile fail.

[burtonkent]

Steps to reproduce if you already have Lua-RTOS-ESP32 set up to 'make':

1. make clean to clear out past makes.
2. make
3. choose 8 (Espressif Systems ESP-WROVER-KIT)
4. choose 2 (Espressif Systems ESP-WROVER-KIT with OTA)
5. Will warn about not being able to remove directories because they're not empty. It's fine.
6. Fails in components/sys/drivers/net.c because the variable total isn't declared before use on line 513.
   The error given is:

Lua-RTOS-ESP32/components/sys/drivers/net.c: In function 'net_ota':
<development path I'm using>/Lua-RTOS-ESP32/components/sys/drivers/net.c:513:78: error: 'total' undeclared (first use in this function)
                 int pct = (int)(((float)(address-update_partition->address))/total*100);

It's strange because git blame shows:
b22ddc9 components/sys/drivers/net.c (the0ne 2020-01-09 07:43:20 +0100 513) int pct = (int)(((float)(address-update_partition->address))/*100);
Note the 2020 commit date. I'm surprised this wasn't found as a bug before. I have to wonder if this is my error somehow.

[burtonkent]

Also I did try searching back through the commit history to see if total's declaration was somehow deleted, causing the bug. I used:

git log -Gtotal components/sys/drivers/net.c

And it was added at the one commit and never changed.

[the0ne]

Oh, that's sad.
This probably has to do with the discussion around #238 that has lead to not merging it yet.
Despite that, it shouldn't have happened of cause.

Please try to cherry-pick/merge the corresponding commits into your source tree. Will it build afterwards?

Alternatively, you could just comment out the two lines:

                int pct = (int)(((float)(address-update_partition->address))/total*100);
                if (0 == pct%10) esp_task_wdt_reset();

[the0ne]

Fixed with 6b455df - closing.
Thanks for reporting the issue!