Zola serve doesn't give detailed error information

[lf-]

Bug Report

Environment

Zola version: next 51644a7

Expected Behavior

I'd like to get full error details such as when I call zola serve and it builds initially, or when I call zola build:

dev/zlog - [main●] » ~/dev/zola/target/debug/zola serve
Building site...
Error: Error parsing templates
Reason: 
* Failed to parse "/home/jade/dev/zlog/templates/shortcodes/image.html"
 --> 4:25
  |
4 |     <a href="{{ get_url("images/{{ name }}") }}"␊
  |                         ^---
  |
  = expected an identifier (must start with a-z)

Current Behavior

I got this error without details of where exactly it failed.

Change detected @ 2021-03-09 01:45:51
-> Template changed /home/jade/dev/zlog/templates/shortcodes/image.html
Error parsing templates
Done in 18ms.

Step to reproduce

Break something in a template while zola serve is running, then save. The error message will not include the reason.

[Keats]

Looks like the reloaded site need to call the unravel_errors function as well.

[alice-i-cecile]

For others who encounter this thread: calling zola build from scratch will give you much better error messages, which is an extremely helpful workaround.

[Keats]

It's fixed in the commit above, will be released this weekend if I don't forget about it