loop/webui: swtich to web components impl (#1)
* loop/webui: swtich to web components impl
This change reorganizes the original vibe-coded
frontend code into a structure that's much
easier for a human to read and reason about,
while retaining the user-visible functionality
of its vibe-coded predecessor. Perhaps most
importantly, this change makes the code testable.
Some other notable details:
This does not use any of the popular large web
frameworks, but instead follows more of an
"a la carte" approach: leverage features
that already exist in modern web browsers,
like custom elements and shadow DOM.
Templating and basic component lifecycle
management are provided by lit.
State management is nothing fancy. It
doesn't use any library or framework, just
a basic "Events up, properties down"
approach.
* fix bad esbuild.go merge
* loop/webui: don't bundle src/web-components/demo
* loop/webui: don't 'npm ci' dev deps in the container
* rebase to main, undo README.md changes, add webuil.Build() call to LaunchContainer()
diff --git a/cmd/bundle-analyzer/main.go b/cmd/bundle-analyzer/main.go
new file mode 100644
index 0000000..ead3ff5
--- /dev/null
+++ b/cmd/bundle-analyzer/main.go
@@ -0,0 +1,55 @@
+// Package main provides a minimal command-line tool for generating bundle metafiles for analysis
+// with the esbuild analyzer at https://esbuild.github.io/analyze/
+package main
+
+import (
+ "flag"
+ "fmt"
+ "os"
+ "path/filepath"
+
+ "sketch.dev/loop/webui"
+)
+
+func main() {
+ // Use a temporary directory for output by default
+ tmp, err := os.MkdirTemp("", "bundle-analysis-")
+ if err != nil {
+ fmt.Fprintf(os.Stderr, "Error creating temp directory: %v\n", err)
+ os.Exit(1)
+ }
+
+ // Parse command line flags
+ outputDir := flag.String("output", tmp, "Directory where the bundle metafiles should be written")
+ flag.Parse()
+
+ // Ensure the output directory exists
+ if err := os.MkdirAll(*outputDir, 0755); err != nil {
+ fmt.Fprintf(os.Stderr, "Error creating output directory: %v\n", err)
+ os.Exit(1)
+ }
+
+ // Get absolute path for better user feedback
+ absOutDir, err := filepath.Abs(*outputDir)
+ if err != nil {
+ fmt.Fprintf(os.Stderr, "Error getting absolute path: %v\n", err)
+ os.Exit(1)
+ }
+
+ fmt.Println("Generating bundle metafiles...")
+
+ // Generate the metafiles
+ _, err = webui.GenerateBundleMetafile(*outputDir)
+ if err != nil {
+ fmt.Fprintf(os.Stderr, "Error generating metafiles: %v\n", err)
+ os.Exit(1)
+ }
+
+ // Print the simple usage instructions
+ fmt.Printf("\nBundle metafiles generated at: %s\n\n", absOutDir)
+ fmt.Println("To analyze bundles:")
+ fmt.Println("1. Go to https://esbuild.github.io/analyze/")
+ fmt.Println("2. Drag and drop the generated metafiles onto the analyzer")
+ fmt.Printf(" - %s/timeline.meta.json\n", absOutDir)
+ fmt.Printf(" - %s/sketch-app-shell.meta.json\n", absOutDir)
+}