Long identifiers will give errors on the format:
```bash
_default/single.html:5:14: executing "main" at <.ThisIsAVeryLongTitl...>: can't evaluate field ThisIsAVeryLongTitle
```
Hugo use this value to match the "base template or not", so we need to strip the "...".
Fixes#5346
`*json.UnmarshalTypeError` and `*json.SyntaxError` has a byte `Offset`, so use that.
This commit also reworks/simplifies the errror line matching logic. This also makes the file reading unbuffered, but that should be fine in this error case.
See #5324
We do that by re-render visited pages that is not already in the stack. This may potentially do some double work, but that small penalty should be well worth it.
Fixes#5281
The main item in this commit is showing of errors with a file context when running `hugo server`.
This can be turned off: `hugo server --disableBrowserError` (can also be set in `config.toml`).
But to get there, the error handling in Hugo needed a revision. There are some items left TODO for commits soon to follow, most notable errors in content and config files.
Fixes#5284Fixes#5290
See #5325
See #5324
Remove use of fmt.Sprintf for simple string concatenation. A simple
change for a small perf boost.
```
name old time/op new time/op delta
Integrity-4 525ns ± 2% 268ns ± 2% -48.92% (p=0.000 n=10+10)
name old alloc/op new alloc/op delta
Integrity-4 144B ± 0% 112B ± 0% -22.22% (p=0.000 n=10+10)
name old allocs/op new allocs/op delta
Integrity-4 5.00 ± 0% 3.00 ± 0% -40.00% (p=0.000 n=10+10)
```
Read build_url from $SNAPCRAFT_IMAGE_INFO to determine whether
to add the "extended" build tag or not. This allows us to do away
with the extended-snap-master and extended-snap-stable branches.
Initially, rst2html was called via the python interpreter which would
fail if the script was wrapped in a launcher as on NixOS.
Ideally, on *nix, binaries should be invoked directly to ensure that
shebangs work properly as is being done now.
Handle the case of windows as it doesn't do shebangs.
The fix introduced in Hugo `0.49.1` had an unintended side-effect in the `Append` func used in both `append` and `.Scratch.Add`.
This commit fixes that by loosen/fixing the type checking so concrete types can be appended to interface slices.
Fixes#5303
