Fix docsite path error in docsite.go (#1272)

The docsite path was being initialized as a global variable. This wasn't
an issue before we were caching and unsetting the env vars, but now that
`wavebase.GetWaveAppPath()` returns the contents of the cached variable,
we need to read its value at runtime, since it won't be set at the time
the global variable is initialized.

.gitignore

@@ -30,3 +30,5 @@ artifacts/
 storybook-static/
 
 test-results.xml
+
+docsite/

pkg/docsite/docsite.go

@@ -9,19 +9,18 @@ import (
 	"github.com/wavetermdev/waveterm/pkg/wavebase"
 )
 
-var docsiteStaticPath = filepath.Join(wavebase.GetWaveAppPath(), "docsite")
-
 var docsiteHandler http.Handler
 
 func GetDocsiteHandler() http.Handler {
+	docsiteStaticPath := filepath.Join(wavebase.GetWaveAppPath(), "docsite")
 	stat, err := os.Stat(docsiteStaticPath)
 	if docsiteHandler == nil {
 		log.Println("Docsite is nil, initializing")
 		if err == nil && stat.IsDir() {
 			log.Printf("Found static site at %s, serving\n", docsiteStaticPath)
 			docsiteHandler = http.FileServer(HTMLDir{http.Dir(docsiteStaticPath)})
 		} else {
-			log.Println("Did not find static site, serving not found handler")
+			log.Printf("Did not find static site at %s, serving not found handler. stat: %v, err: %v\n", docsiteStaticPath, stat, err)
 			docsiteHandler = http.NotFoundHandler()
 		}
 	}