Is it possible to get the `publicDir` from PostCSS plugins?

UtkarshVerma · December 18, 2022, 5:34am

I am writing a custom PostCSS plugin to operate on HTML files in the publicDir. Is there a way I can get the path of the publicDir within the plugin JS source?

For example, currently I have to do hugo server -d public and then hardcode the path in my plugin to “public”. I was just wondering if there is a way to get rid of this hardcoded value.

bep · December 18, 2022, 9:29am

Currently I don’t think so.

This is what we currently pass to all of the Node based tools:

github.com

gohugoio/hugo/blob/master/common/hugo/hugo.go#L118


      
          		CommitHash:  commitHash,
          		BuildDate:   buildDate,
          		Environment: environment,
          		deps:        deps,
          		GoVersion:   goVersion,
          	}
          }
          
          
// GetExecEnviron creates and gets the common os/exec environment used in the
          // external programs we interact with via os/exec, e.g. postcss.
          func GetExecEnviron(workDir string, cfg config.Provider, fs afero.Fs) []string {
          	var env []string
          	nodepath := filepath.Join(workDir, "node_modules")
          	if np := os.Getenv("NODE_PATH"); np != "" {
          		nodepath = workDir + string(os.PathListSeparator) + np
          	}
          	config.SetEnvVars(&env, "NODE_PATH", nodepath)
          	config.SetEnvVars(&env, "PWD", workDir)
          	config.SetEnvVars(&env, "HUGO_ENVIRONMENT", cfg.GetString("environment"))
          	config.SetEnvVars(&env, "HUGO_ENV", cfg.GetString("environment"))

bep · December 19, 2022, 11:45am

But note that I wouldn’t mind if we expanded the above a little to include some of the core config values (but not … everything).

bep · December 19, 2022, 12:16pm

UtkarshVerma · December 19, 2022, 12:56pm

Thanks. Having access to this variable would be a huge step forward for me, and I hope for others as well. The use case I’m hoping for is the inclusion of post-build tasks through PostCSS plugins and {{ ... | postCSS | resources.PostProcess }}.

I have one doubt though. Would this work when hugo serves from memory?

bep · December 19, 2022, 1:04pm

No, but there are already certain things that don’t work with that, which is why I always use postprocess in non-server mode only.

system · December 21, 2022, 1:04pm

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