Misc config loading fixes

The main motivation behind this is simplicity and correctnes, but the new small config library is also faster:

```
BenchmarkDefaultConfigProvider/Viper-16         	  252418	      4546 ns/op	    2720 B/op	      30 allocs/op
BenchmarkDefaultConfigProvider/Custom-16        	  450756	      2651 ns/op	    1008 B/op	       6 allocs/op
```

Fixes #8633
Fixes #8618
Fixes #8630
Updates #8591
Closes #6680
Closes #5192
This commit is contained in:
Bjørn Erik Pedersen 2021-06-09 10:58:18 +02:00
parent a886dd53b8
commit d392893cd7
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107 changed files with 2159 additions and 1060 deletions

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@ -80,6 +80,26 @@ Considering the structure above, when running `hugo --environment staging`, Hugo
{{% note %}}
Default environments are __development__ with `hugo server` and __production__ with `hugo`.
{{%/ note %}}
## Merge Configuration from Themes
{{< new-in "0.84.0" >}} The configuration merge described below was improved in Hugo 0.84.0 and made fully configurable. The big change/improvement was that we now, by default, do deep merging of `params` maps from themes.
The configuration value for `_merge` can be one of:
none
: No merge.
shallow
: Only add values for new keys.
shallow
: Add values for new keys, merge existing.
Note that you don't need to be so verbose as in the default setup below; a `_merge` value higher up will be inherited if not set.
{{< code-toggle config="mergeStrategy" skipHeader=true />}}
## All Configuration Settings
The following is the full list of Hugo-defined variables with their default