feat: support vercel dev

builder/article.go

@@ -20,17 +20,18 @@ type Article struct {
 	URL  string `yaml:"-"`
 	Path string `yaml:"-"`
 
-	Title       string           `yaml:"title"`
-	Image       []string         `yaml:"image"`
-	Description string           `yaml:"description"`
-	Tags        []string         `yaml:"tags"`
-	Published   time.Time        `yaml:"pubtime"`
-	Modified    time.Time        `yaml:"modtime"`
-	FAQ         []FAQItem        `yaml:"faq"`
-	HowTo       *HowTo           `yaml:"howto"`
-	BreadCrumb  []BreadCrumbItem `yaml:"breadcrumb"`
-	Layout      string           `yaml:"layout"`
-	Hidden      bool             `yaml:"hidden"`
+	Title       string            `yaml:"title"`
+	Image       []string          `yaml:"image"`
+	Description string            `yaml:"description"`
+	Tags        []string          `yaml:"tags"`
+	Published   time.Time         `yaml:"pubtime"`
+	Modified    time.Time         `yaml:"modtime"`
+	FAQ         []FAQItem         `yaml:"faq"`
+	HowTo       *HowTo            `yaml:"howto"`
+	BreadCrumb  []BreadCrumbItem  `yaml:"breadcrumb"`
+	Layout      string            `yaml:"layout"`
+	Hidden      bool              `yaml:"hidden"`
+	Headers     map[string]string `yaml:"headers"`
 
 	Markdown []byte        `yaml:"-"`
 	Content  template.HTML `yaml:"-"`
@@ -102,6 +103,10 @@ func (l *ArticleLoader) Load(externalPath string, raw []byte) (Article, error) {
 		article.Image = []string{"/images" + externalPath + ".png"}
 	}
 
+	if len(article.Headers) == 0 {
+		article.Headers = make(map[string]string)
+	}
+
 	var buf strings.Builder
 	if err := l.md.Convert(&buf, article.Markdown); err != nil {
 		return Article{}, err

builder/autoindex.go

@@ -1,8 +1,9 @@
 package main
 
 import (
-	"fmt"
 	"encoding/json"
+	"fmt"
+	"regexp"
 	"sort"
 	"strings"
 	"time"
@@ -558,19 +559,41 @@ func (g *IndexGenerator) generateSitemap(dst fs.Writable, articles ArticleList,
 	return result, output.Close()
 }
 
-func (g *IndexGenerator) generateConfig(dst fs.Writable, articles ArticleList, conf Config) (ArtifactList, error) {
-	output, err := CreateOutput(dst, "config.json", "application/json")
+func (g *IndexGenerator) generateConfig(dst fs.Writable, as ArticleList, conf Config) (ArtifactList, error) {
+	targetPath := "config.json"
+
+	if fs.ModTime(dst, targetPath).After(as.ModTime()) {
+		return nil, nil
+	}
+
+	output, err := CreateOutput(dst, targetPath, "application/json")
 	if err != nil {
 		return nil, err
 	}
 	defer output.Close()
 
+	type Route struct {
+		Src     string            `json:"src"`
+		Headers map[string]string `json:"headers"`
+	}
+
+	routes := make([]Route, 0, len(as))
+
+	for _, a := range as {
+		if len(a.Headers) > 0 {
+			routes = append(routes, Route{
+				Src:     fmt.Sprintf("^%s$", regexp.QuoteMeta(a.Path)),
+				Headers: a.Headers,
+			})
+		}
+	}
+
 	err = json.NewEncoder(output).Encode(map[string]any{
 		"version": 3,
+		"routes":  routes,
 	})
-	as := ArtifactList{Index{
+	return ArtifactList{Index{
 		name:    "config.json",
-		sources: articles.Sources(),
-	}}
-	return as, err
+		sources: as.Sources(),
+	}}, err
 }

builder/main.go

@@ -78,7 +78,7 @@ func PreviewServer(fs_ fs.Readable) error {
 			return
 		}
 
-		path := r.URL.Path[1:]
+		path := filepath.Join("static", r.URL.Path)
 
 		stat, err := fs.Stat(fs_, path)
 		if err == nil && stat.IsDir() {
@@ -95,8 +95,13 @@ func PreviewServer(fs_ fs.Readable) error {
 		http.ServeContent(w, r, path, fs.ModTime(fs_, path), f.(io.ReadSeeker))
 	})
 
-	log.Println("Listening on :3000")
-	return http.ListenAndServe(":3000", nil)
+	addr := ":3000"
+	if len(os.Args) > 2 {
+		addr = ":" + os.Args[2]
+	}
+
+	log.Printf("Listening on %s\n", addr)
+	return http.ListenAndServe(addr, nil)
 }
 
 type ContinuousBuilder struct {
@@ -239,27 +244,21 @@ func (b *ContinuousBuilder) StartWatching(sourceDir string) error {
 	return nil
 }
 
-func serve(path string) {
-	http.Handle("/", http.FileServer(http.Dir(path)))
-	log.Println("Listening on :3000")
-	log.Fatal(http.ListenAndServe(":3000", nil))
-}
-
 func main() {
 	stopProfiler := startProfiler()
 	defer stopProfiler()
 
-	preview := len(os.Args) > 1 && os.Args[1] == "preview"
-
-	if len(os.Args) > 1 && os.Args[1] == "serve" {
-		serve("../.vercel/output/static")
-	}
+	dev := len(os.Args) > 1 && os.Args[1] == "dev"
 
 	sourceDir := "../pages"
 	src := fs.NewOnDisk(sourceDir)
 	var dst fs.Writable = fs.NewOnDisk("../.vercel/output")
 
-	if preview {
+	if len(os.Args) > 1 && os.Args[1] == "serve" {
+		log.Fatal(PreviewServer(dst))
+	}
+
+	if dev {
 		dst = fs.NewInMemory()
 	}
 
@@ -310,7 +309,7 @@ func main() {
 		log.Println("Failed to tidy cache:", err)
 	}
 
-	if len(os.Args) > 1 && os.Args[1] == "preview" {
+	if dev {
 		if err = builder.StartWatching(sourceDir); err != nil {
 			log.Fatal(err)
 		}

make

@@ -0,0 +1,24 @@
+#!/bin/sh
+
+case "$1" in
+    '' | build)
+        cd builder && go run .
+        ;;
+    rebuild)
+        rm -rf .vercel/output
+        cd builder && go run .
+        ;;
+    serve)
+        cd builder && go run . serve $2
+        ;;
+    dev)
+        cd builder && go run . dev $2
+        ;;
+    prepare)
+        git worktree add pages/photos photos
+        ;;
+    clean)
+        rm -rf .vercel/output .vercel/cache
+        git worktree remove pages/photos
+        ;;
+esac

vercel.json

@@ -1,5 +1,6 @@
 {
-  "buildCommand": "make build",
+  "buildCommand": "./make build",
+  "devCommand": "./make dev $PORT",
   "trailingSlash": false,
   "headers": [
     {