allow configurable media endpoints per remote

commands/command_config.go

@@ -10,7 +10,15 @@ type ConfigCommand struct {
 
 func (c *ConfigCommand) Run() {
 	config := core.Config()
+
+	if len(config.Endpoint) > 0 {
 		core.Print("Endpoint=%s", config.Endpoint)
+	} else {
+		for _, remote := range config.Remotes() {
+			core.Print("Endpoint (%s)=%s", remote, config.RemoteEndpoint(remote))
+		}
+	}
+
 	for _, env := range core.Environ() {
 		core.Print(env)
 	}

config.go

@@ -4,10 +4,13 @@ import (
 	"github.com/pelletier/go-toml"
 	"os"
 	"path/filepath"
+	"strings"
 )
 
 type Configuration struct {
 	Endpoint  string
+	gitConfig map[string]string
+	remotes   []string
 }
 
 var config *Configuration
@@ -25,6 +28,57 @@ func Config() *Configuration {
 	return config
 }
 
+func (c *Configuration) RemoteEndpoint(remote string) string {
+	if url, ok := c.GitConfig("remote." + remote + ".mediaUrl"); ok {
+		return url
+	}
+
+	if url, ok := c.GitConfig("remote." + remote + ".url"); ok {
+		return url + ".git/info/media"
+	}
+
+	return "<unknown>"
+}
+
+func (c *Configuration) Remotes() []string {
+	if c.remotes == nil {
+		c.loadGitConfig()
+	}
+	return c.remotes
+}
+
+func (c *Configuration) GitConfig(key string) (string, bool) {
+	if c.gitConfig == nil {
+		c.loadGitConfig()
+	}
+	value, ok := c.gitConfig[key]
+	return value, ok
+}
+
+func (c *Configuration) loadGitConfig() {
+	uniqRemotes := make(map[string]bool)
+
+	c.gitConfig = make(map[string]string)
+	lines := strings.Split(SimpleExec("git", "config", "-l"), "\n")
+	for _, line := range lines {
+		pieces := strings.SplitN(line, "=", 2)
+		key := pieces[0]
+		c.gitConfig[key] = pieces[1]
+
+		keyParts := strings.Split(key, ".")
+		if len(keyParts) > 1 && keyParts[0] == "remote" {
+			uniqRemotes[keyParts[1]] = true
+		}
+	}
+
+	c.remotes = make([]string, len(uniqRemotes))
+	i := 0
+	for remote, _ := range uniqRemotes {
+		c.remotes[i] = remote
+		i += 1
+	}
+}
+
 func readToml(config *Configuration) {
 	tomlPath := filepath.Join(LocalWorkingDir, ".gitmedia")
 	stat, _ := os.Stat(tomlPath)

integration/tests.go

@@ -44,7 +44,7 @@ func init() {
 	// tests on the git-media repository, which has no actual git-media assets :)
 	allCommands[wd] = map[string]string{
 		"version": "git-media v" + gitmedia.Version,
-		"config": "Endpoint=\n" +
+		"config": "Endpoint (origin)=https://github.com/github/git-media.git/info/media\n" +
 			"LocalWorkingDir=" + wd + "\n" +
 			"LocalGitDir=" + filepath.Join(wd, ".git") + "\n" +
 			"LocalMediaDir=" + filepath.Join(wd, ".git", "media") + "\n" +