Switch config from YAML to TOML

internal/config/config.go

@@ -6,70 +6,70 @@ import (
 	"os"
 	"regexp"
 
-	"gopkg.in/yaml.v3"
+	"github.com/BurntSushi/toml"
 )
 
 // envBracketRe matches only ${VAR} style env references, not bare $VAR.
 var envBracketRe = regexp.MustCompile(`\$\{([^}]+)\}`)
 
 type Config struct {
-	Matrix  MatrixConfig   `yaml:"matrix"`
-	Posting PostingConfig  `yaml:"posting"`
-	Storage StorageConfig  `yaml:"storage"`
-	Web     WebConfig      `yaml:"web"`
-	Sources []SourceConfig `yaml:"sources"`
+	Matrix  MatrixConfig   `toml:"matrix"`
+	Posting PostingConfig  `toml:"posting"`
+	Storage StorageConfig  `toml:"storage"`
+	Web     WebConfig      `toml:"web"`
+	Sources []SourceConfig `toml:"sources"`
 }
 
 // WebConfig controls the read-only HTTP interface (news.parodia.dev style).
 type WebConfig struct {
-	Enabled    bool   `yaml:"enabled"`
-	ListenAddr string `yaml:"listen_addr"` // e.g. ":8080" or "127.0.0.1:8080"
-	SiteTitle  string `yaml:"site_title"`  // display name in the header
-	BaseURL    string `yaml:"base_url"`    // public URL (used in metadata only)
+	Enabled    bool   `toml:"enabled"`
+	ListenAddr string `toml:"listen_addr"` // e.g. ":8080" or "127.0.0.1:8080"
+	SiteTitle  string `toml:"site_title"`  // display name in the header
+	BaseURL    string `toml:"base_url"`    // public URL (used in metadata only)
 }
 
 type MatrixConfig struct {
-	Homeserver  string            `yaml:"homeserver"`
-	UserID      string            `yaml:"user_id"`
-	Password    string            `yaml:"password"`
-	PickleKey   string            `yaml:"pickle_key"`
-	DisplayName string            `yaml:"display_name"`
-	DataDir     string            `yaml:"data_dir"`
-	AdminRoom   string            `yaml:"admin_room"`
-	Channels    map[string]string `yaml:"channels"`
+	Homeserver  string            `toml:"homeserver"`
+	UserID      string            `toml:"user_id"`
+	Password    string            `toml:"password"`
+	PickleKey   string            `toml:"pickle_key"`
+	DisplayName string            `toml:"display_name"`
+	DataDir     string            `toml:"data_dir"`
+	AdminRoom   string            `toml:"admin_room"`
+	Channels    map[string]string `toml:"channels"`
 }
 
 type PostingConfig struct {
-	MinIntervalSeconds    int `yaml:"min_interval_seconds"`
-	BurstCapCount         int `yaml:"burst_cap_count"`
-	BurstCapWindowSeconds int `yaml:"burst_cap_window_seconds"`
-	DedupCooldownHours    int `yaml:"dedup_cooldown_hours"`
+	MinIntervalSeconds    int `toml:"min_interval_seconds"`
+	BurstCapCount         int `toml:"burst_cap_count"`
+	BurstCapWindowSeconds int `toml:"burst_cap_window_seconds"`
+	DedupCooldownHours    int `toml:"dedup_cooldown_hours"`
 	// DailyCapTotal is the hard global cap on posts across ALL channels in a
 	// rolling 24-hour window. 0 disables the cap.
-	DailyCapTotal int              `yaml:"daily_cap_total"`
-	RoundRobin    RoundRobinConfig `yaml:"round_robin"`
+	DailyCapTotal int              `toml:"daily_cap_total"`
+	RoundRobin    RoundRobinConfig `toml:"round_robin"`
 }
 
 // RoundRobinConfig switches Pete from immediate-on-classify posting to a
 // paced rotation: one story per IntervalHours, picking the next channel in
 // rotation order that has a postable story (skip-and-advance, newest-first).
 type RoundRobinConfig struct {
-	Enabled       bool `yaml:"enabled"`
-	IntervalHours int  `yaml:"interval_hours"`
+	Enabled       bool `toml:"enabled"`
+	IntervalHours int  `toml:"interval_hours"`
 }
 
 type StorageConfig struct {
-	DBPath            string `yaml:"db_path"`
-	RecentWindowHours int    `yaml:"recent_window_hours"`
+	DBPath            string `toml:"db_path"`
+	RecentWindowHours int    `toml:"recent_window_hours"`
 }
 
 type SourceConfig struct {
-	Name                string `yaml:"name"`
-	FeedURL             string `yaml:"feed_url"`
-	Tier                int    `yaml:"tier"`
-	PollIntervalMinutes int    `yaml:"poll_interval_minutes"`
-	DirectRoute         string `yaml:"direct_route"`
-	Enabled             bool   `yaml:"enabled"`
+	Name                string `toml:"name"`
+	FeedURL             string `toml:"feed_url"`
+	Tier                int    `toml:"tier"`
+	PollIntervalMinutes int    `toml:"poll_interval_minutes"`
+	DirectRoute         string `toml:"direct_route"`
+	Enabled             bool   `toml:"enabled"`
 }
 
 func Load(path string) (*Config, error) {
@@ -90,7 +90,7 @@ func Load(path string) (*Config, error) {
 	})
 
 	var cfg Config
-	if err := yaml.Unmarshal([]byte(expanded), &cfg); err != nil {
+	if _, err := toml.Decode(expanded, &cfg); err != nil {
 		return nil, fmt.Errorf("parse config: %w", err)
 	}