doodle/pkg/campaign/files.go

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// Package campaign contains types and functions for the single player campaigns.
package campaign
import (
"io/ioutil"
"path/filepath"
"runtime"
"sort"
2022-09-24 22:17:25 +00:00
"git.kirsle.net/SketchyMaze/doodle/assets"
"git.kirsle.net/SketchyMaze/doodle/pkg/filesystem"
"git.kirsle.net/SketchyMaze/doodle/pkg/userdir"
)
// List returns the list of available campaign JSONs.
//
// It searches in:
// - The embedded bindata for built-in scenarios
// - Scenarios on disk at the assets/campaigns folder.
// - User-made scenarios at ~/doodle/campaigns.
func List() ([]string, error) {
var names []string
// List built-in bindata campaigns.
if files, err := assets.AssetDir("assets/campaigns"); err == nil {
names = append(names, files...)
}
// WASM: only built-in campaigns, no filesystem access.
if runtime.GOOS == "js" {
return names, nil
}
// Read system-level doodads first. Ignore errors, if the system path is
// empty we still go on to read the user directory.
files, _ := ioutil.ReadDir(filesystem.SystemCampaignsPath)
for _, file := range files {
name := file.Name()
if filepath.Ext(name) == ".json" {
names = append(names, name)
}
}
// Append user campaigns.
userFiles, err := userdir.ListCampaigns()
names = append(names, userFiles...)
// Deduplicate names.
var uniq = map[string]interface{}{}
var result []string
for _, name := range names {
if _, ok := uniq[name]; !ok {
uniq[name] = nil
result = append(result, name)
}
}
sort.Strings(result)
return result, err
}