Partials with returns values are parsed, then inserted into a
partial return wrapper via wrapInPartialReturnWrapper in order
to assign the return value via *contextWrapper.Set. The
predefined wrapper template for partials inserts a partial's nodes
into a "with" template action in order to set dot to a
*contextWrapper within the partial. However, because "with" is
skipped if its argument is falsy, partials with falsy arguments
were not being evaluated.
This replaces the "with" action in the partial wrapper with a
"range" action that isn't skipped if .Arg is falsy.
Fixes#7528
This ommmit contains some security hardening measures for the Hugo build runtime.
There are some rarely used features in Hugo that would be good to have disabled by default. One example would be the "external helpers".
For `asciidoctor` and some others we use Go's `os/exec` package to start a new process.
These are a predefined set of binary names, all loaded from `PATH` and with a predefined set of arguments. Still, if you don't use `asciidoctor` in your project, you might as well have it turned off.
You can configure your own in the new `security` configuration section, but the defaults are configured to create a minimal amount of site breakage. And if that do happen, you will get clear instructions in the loa about what to do.
The default configuration is listed below. Note that almost all of these options are regular expression _whitelists_ (a string or a slice); the value `none` will block all.
```toml
[security]
enableInlineShortcodes = false
[security.exec]
allow = ['^dart-sass-embedded$', '^go$', '^npx$', '^postcss$']
osEnv = ['(?i)^(PATH|PATHEXT|APPDATA|TMP|TEMP|TERM)$']
[security.funcs]
getenv = ['^HUGO_']
[security.http]
methods = ['(?i)GET|POST']
urls = ['.*']
```
4eb10c1a9 Set a sensible maxAge on the image cache
2c37f4f89 Update lists.md
8690c018f Update introduction.md
0458c3d88 Update index.md
150982f5e Update index.md
50dc0b6b9 Update multilingual.md
648598090 Configure image cache to use :cacheDir/images
4dfb523c3 Update introduction.md
b94d42e6f Add text to social images
d3253d2aa Add resources/_gen/images/ to .gitignore
8a56e1dfd Delete resources/_gen/images
1521e79b6 Update introduction.md
c7110a597 Update introduction.md
f7c4d220f Update introduction.md
c14ecf1ff Update introduction.md
c4b388c20 Fix shortcode in hugo-pipes/introduction (#1605)
d9876bd68 Update introduction.md
a39a532d5 Update introduction.md
fa8758122 netlify: Hugo 0.90.1
50cc40570 Update Contribute to Hugo Development
fc98fc82c Add .vscode dir to .gitignore (#1602)
8f8bcdefc Add frontmatter param to code-toggle shortcode (#1601)
f3b432c7c Add markdownlint configuration file (#1597)
7ea3aea92 netlify: Bump to 0.90.0
e2b6f990b docs: Regenerate docs helper
c02259e33 Merge commit '8d9511a08f14260cbfb73119e4afae50e5a9966d'
2e3573899 Add custom font support to images.Text
3186e6458 images: Text filter that draws text with the given options (#9239)
424f219eb tpl/transform: Optional options for highlight func
7993f17d0 Implement XML data support
1eb9d34cf Make resources.Get use a file cache for remote resources
8a0fffd56 Add remote support to resources.Get
git-subtree-dir: docs
git-subtree-split: 4eb10c1a9689aebf652011a6260a14bf8a3dcef4
In Hugo 0.90.0 we introduced remote support in `resources.Get`.
But with remote resources comes with a higher chance of failing a build (network issues, remote server down etc.).
Before this commit we always failed the build on any unexpected error.
This commit allows the user to check for any error (and potentially fall back to a default local resource):
```htmlbars
{{ $result := resources.Get "https://gohugo.io/img/hugo-logo.png" }}
{{ with $result }}
{{ if .Err }}
{{/* log the error, insert a default image etc. *}}
{{ else }}
<img src="{{ .RelPermalink }}" width="{{ .Width }}" height="{{ .Height }}" alt="">
{{ end }}
{{ end }}
```
Note that the default behaviour is still to fail the build, but we will delay that error until you start using the `Resource`.
Fixes#9529
