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maint: annotate source code

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vx-clutch
2025-12-28 16:39:33 -05:00
parent 5fabd0233d
commit 11ab1630be
3 changed files with 41 additions and 5 deletions
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38
modules/server/server.go
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@@ -17,11 +17,21 @@ import (
"time"
)
/* this is the request data we pass over the bus to the application, via the fes.bus interface */
type reqData struct {
path string
params map[string]string
}
/* performs relavent handling based on the directory passaed
*
* Special directories
* - www/ <= contains lua routes.
* - static/ <= static content accessable at /static/path or /static/dir/path.
* - include/ <= globally accessable lua functions, cannot directly access "fes" right now.
* - archive/ <= contains user facing files such as archives or dists.
*
*/
func handleDir(entries []os.DirEntry, dir string, routes map[string]string, base string, isStatic bool) error {
for _, entry := range entries {
path := filepath.Join(dir, entry.Name())
@@ -59,6 +69,7 @@ func handleDir(entries []os.DirEntry, dir string, routes map[string]string, base
return nil
}
// TODO(vx-clutch): this should not be a function
func loadIncludeModules(L *lua.LState, includeDir string) *lua.LTable {
app := L.NewTable()
ents, err := os.ReadDir(includeDir)
@@ -94,7 +105,8 @@ func loadIncludeModules(L *lua.LState, includeDir string) *lua.LTable {
return app
}
func loadLua(entry string, cfg *config.AppConfig, requestData reqData) ([]byte, error) {
/* renders the given lua route */
func renderRoute(entry string, cfg *config.AppConfig, requestData reqData) ([]byte, error) {
L := lua.NewState()
defer L.Close()
@@ -219,6 +231,7 @@ func loadLua(entry string, cfg *config.AppConfig, requestData reqData) ([]byte,
return []byte(""), nil
}
/* this indexes and generate the page for viewing the archive directory */
func generateArchiveIndex(fsPath string, urlPath string) (string, error) {
info, err := os.Stat(fsPath)
if err != nil {
@@ -309,6 +322,9 @@ func generateArchiveIndex(fsPath string, urlPath string) (string, error) {
return b.String(), nil
}
/* generates the data for the not found page. Checks for user-defined source in this order
* 404.lua => 404.md => 404.html => default.
*/
func generateNotFoundData(cfg *config.AppConfig) []byte {
notFoundData := []byte(`
<html>
@@ -320,9 +336,13 @@ func generateNotFoundData(cfg *config.AppConfig) []byte {
</html>
`)
if _, err := os.Stat(filepath.Join("www", "404.lua")); err == nil {
if nf, err := loadLua("www/404.lua", cfg, reqData{}); err == nil {
if nf, err := renderRoute("www/404.lua", cfg, reqData{}); err == nil {
notFoundData = nf
}
} else if _, err := os.Stat("www/404.md"); err == nil {
if buf, err := os.ReadFile("www/404.html"); err == nil {
notFoundData = []byte(markdownToHTML(string(buf)))
}
} else if _, err := os.Stat("www/404.html"); err == nil {
if buf, err := os.ReadFile("www/404.html"); err == nil {
notFoundData = buf
@@ -331,6 +351,7 @@ func generateNotFoundData(cfg *config.AppConfig) []byte {
return notFoundData
}
/* helper to load all special directories */
func loadDirs() map[string]string {
routes := make(map[string]string)
@@ -355,6 +376,7 @@ func loadDirs() map[string]string {
return routes
}
/* helper to parse the Fes.toml and generate config */
func parseConfig() config.AppConfig {
tomlDocument, err := os.ReadFile("Fes.toml")
if err != nil {
@@ -372,15 +394,21 @@ func parseConfig() config.AppConfig {
return cfg
}
func readArchive(w http.ResponseWriter, route string) {
/* helper to read the archive files */
func readArchive(w http.ResponseWriter, route string) error {
fsPath := "." + route
if info, err := os.Stat(fsPath); err == nil && info.IsDir() {
if page, err := generateArchiveIndex(fsPath, route); err == nil {
w.Write([]byte(page))
return nil
} else {
return err
}
}
return nil
}
/* start the Fes server */
func Start(dir string) error {
if err := os.Chdir(dir); err != nil {
return ui.Error(fmt.Sprintf("failed to change directory to %s", dir), err)
@@ -405,7 +433,7 @@ func Start(dir string) error {
route = r.URL.Path
if strings.HasPrefix(route, "/archive") {
readArchive(w, route)
err = readArchive(w, route)
} else {
w.WriteHeader(http.StatusNotFound)
w.Write([]byte(notFoundData))
@@ -422,7 +450,7 @@ func Start(dir string) error {
var data []byte
if strings.HasSuffix(route, ".lua") {
data, err = loadLua(route, &cfg, reqData{path: r.URL.Path, params: params})
data, err = renderRoute(route, &cfg, reqData{path: r.URL.Path, params: params})
} else if strings.HasSuffix(route, ".md") {
data, err = os.ReadFile(route)
data = []byte(markdownToHTML(string(data)))