Add per-site optional configuration (fix #15)

config.go

@@ -2,20 +2,20 @@
 package main
 
 import (
-	"os"
 	"encoding/json"
 	"log"
+	"os"
 )
 
 // Configuration stores information retrieved from a configuration file
 type Configuration struct {
-	port int
+	port      int
 	sites_dir string
-	matrix struct {
+	matrix    struct {
 		homeserver string
-		username string
-		password string
-		room_id string
+		username   string
+		password   string
+		room_id    string
 	}
 }
 
@@ -39,4 +39,3 @@ func parseConfig(path string, config *Configuration) {
 	config.matrix.password = matrix["password"].(string)
 	config.matrix.room_id = matrix["room_id"].(string)
 }
-

main.go

@@ -58,7 +58,8 @@ func handler(data map[string]interface{}) {
 		}
 		sendMessage(MatrixMessage{text: "⚪️ Starting server..."})
 		if site, exists, err = getSite(repo_name); err != nil {
-			deploy_error := newDeployError(1, "handler", "Failed to get site '%s' after creation!", fmt.Sprint(err))
+			deploy_error := newDeployError(1, "handler",
+				fmt.Sprintf("Failed to get site '%s' after creation!", repo_name), fmt.Sprint(err))
 			deploy_error.SendOverMatrix()
 		}
 		if deploy_error := site.Start(); deploy_error.code != 0 {

site.go

@@ -2,6 +2,7 @@
 package main
 
 import (
+	"encoding/json"
 	"errors"
 	"fmt"
 	"log"
@@ -15,23 +16,64 @@ import (
 
 // Site contains information and methods used for management of a Lapis site.
 type Site struct {
+	name   string
+	config SiteConfig
+}
+
+// SiteConfig contains parsed data from a site's configuration file
+type SiteConfig struct {
+	port int64
 	name string
 }
 
 // getSite gets a specific site and returns a Site struct and a bool indicating whether a site was found.
 func getSite(name string) (Site, bool, error) {
-	site_path := configuration.sites_dir+"/"+name
-	exists, err := fileExists(site_path);
+	site_path := configuration.sites_dir + "/" + name
+	exists, err := fileExists(site_path)
 	if err != nil {
 		return Site{}, false, errors.New(fmt.Sprintf("Failed to get site '%s'", name))
 	}
 	if exists {
-		return Site{name: name}, true, nil
+		site := Site{name: name}
+		site.getConfig() // Get per-site config
+		return site, true, nil
 	} else {
 		return Site{}, false, nil
 	}
 }
 
+// getConfig parses a site's configuration file
+func (site *Site) getConfig() (bool, error) {
+	path := fmt.Sprintf("%s/%s/deploy_config.json", configuration.sites_dir, site.name)
+	if exists, _ := fileExists(path); !exists {
+		return false, nil
+	}
+	file, _ := os.Open(path)
+	var data map[string]interface{}
+	err := json.NewDecoder(file).Decode(&data)
+	if err != nil {
+		log.Panic("Failed to parse config:", err)
+	}
+	file.Close()
+	// Parse the config
+	var config SiteConfig
+	config.name = data["name"].(string)
+	config.port = int64(data["port"].(float64))
+
+	site.config = config
+
+	return true, nil
+}
+
+// getName gets a website's configured name (falls back to technical name if one isn't configured)
+func (site *Site) getName() string {
+	if site.config.name == "" {
+		return site.name
+	} else {
+		return site.config.name
+	}
+}
+
 // getAllSites gets every site installed.
 func getAllSites() ([]Site, DeployError) {
 	sites_dir := configuration.sites_dir
@@ -71,16 +113,16 @@ func startAllSites() DeployError {
 
 // Start attempts to start a Lapis server in the given repository.
 func (site *Site) Start() DeployError {
-	log.Printf("Starting Lapis server in repository %s...", site.name)
+	log.Printf("Starting Lapis server in %s...", site.getName())
 
 	old_cwd, _ := os.Getwd()
 	defer syscall.Chdir(old_cwd)
-	syscall.Chdir(configuration.sites_dir+"/"+site.name)
+	syscall.Chdir(configuration.sites_dir + "/" + site.name)
 
 	cmd := exec.Command("lapis", "serve")
 	if err := cmd.Start(); err != nil {
 		return newDeployError(1, "startSite",
-			fmt.Sprintf("Failed to start Lapis server in repository '%s'", site.name), "")
+			fmt.Sprintf("Failed to start Lapis server in '%s'", site.getName()), "")
 	}
 	go func() {
 		cmd.Wait()
@@ -91,36 +133,36 @@ func (site *Site) Start() DeployError {
 
 // Restart attempts to restart the Lapis server in the given repository.
 func (site *Site) Restart() DeployError {
-	log.Printf("Restarting Lapis server on repository %s...", site.name)
+	log.Printf("Restarting Lapis server in %s...", site.getName())
 
 	old_cwd, _ := os.Getwd()
 	defer syscall.Chdir(old_cwd)
-	syscall.Chdir(configuration.sites_dir+"/"+site.name)
+	syscall.Chdir(configuration.sites_dir + "/" + site.name)
 
 	out, err := exec.Command("lapis", "build").CombinedOutput()
 	if err != nil {
 		return newDeployError(1, "restartSite",
-			fmt.Sprintf("Failed to run 'lapis build' in repository '%s'", site.name), string(out))
+			fmt.Sprintf("Failed to run 'lapis build' in '%s'", site.getName()), string(out))
 	}
 	log.Printf("[lapis build] %s", out)
 	if !strings.Contains(string(out), "HUP") {
 		return newDeployError(1, "restartSite",
-			"'lapis build' command returned unexpected value! (Lapis server not running?)", string(out))
+			"Failed to restart Lapis server! (Lapis not running?)", string(out))
 	}
 	return DeployError{}
 }
 
 // Update attempts to pull or clone a repository using the given name and url
-func (site *Site) Update() DeployError  {	
-	log.Printf("Pulling down repository %s...", site.name)
-	repo,err := git.Open(configuration.sites_dir+"/"+site.name)
+func (site *Site) Update() DeployError {
+	log.Printf("Pulling down repository %s...", site.getName())
+	repo, err := git.Open(configuration.sites_dir + "/" + site.name)
 	if err != nil {
 		return newDeployError(1, "updateSite",
 			fmt.Sprintf("Failed to open git repository '%s'", site.name), fmt.Sprint(err))
 	}
 	if err = repo.Pull(); err != nil {
 		return newDeployError(1, "updateSite",
-			fmt.Sprintf("Failed to pull down git repository '%s'", site.name), fmt.Sprint(err))
+			fmt.Sprintf("Failed to pull down git repository '%s'", site.getName()), fmt.Sprint(err))
 	}
 	return DeployError{}
 }