Add configuration file support with organization list

- Create config package with JSON parsing support
- Define Organization struct with host and name
- Add config file auto-detection in common locations
- Add --config/-c flag for custom config path
- Add --list-orgs flag to display configured organizations
- Create example configuration file
- Add comprehensive .gitignore

Configuration supports multiple git organizations for future sync functionality.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

1 files changed, 83 insertions, 0 deletions

diff --git a/internal/config/config.go b/internal/config/config.go
new file mode 100644
index 0000000..91c107a
--- /dev/null
+++ b/internal/config/config.go
@@ -0,0 +1,83 @@
+package config
+
+import (
+	"encoding/json"
+	"fmt"
+	"os"
+	"path/filepath"
+)
+
+// Organization represents a git organization with its host and name
+type Organization struct {
+	Host string `json:"host"`
+	Name string `json:"name"`
+}
+
+// Config holds the application configuration
+type Config struct {
+	Organizations []Organization `json:"organizations"`
+}
+
+// Load reads and parses the configuration file
+func Load(path string) (*Config, error) {
+	// Expand home directory if needed
+	if path[:2] == "~/" {
+		home, err := os.UserHomeDir()
+		if err != nil {
+			return nil, fmt.Errorf("failed to get home directory: %w", err)
+		}
+		path = filepath.Join(home, path[2:])
+	}
+
+	// Read config file
+	data, err := os.ReadFile(path)
+	if err != nil {
+		return nil, fmt.Errorf("failed to read config file: %w", err)
+	}
+
+	// Parse JSON
+	var cfg Config
+	if err := json.Unmarshal(data, &cfg); err != nil {
+		return nil, fmt.Errorf("failed to parse config: %w", err)
+	}
+
+	// Validate configuration
+	if err := cfg.Validate(); err != nil {
+		return nil, fmt.Errorf("invalid configuration: %w", err)
+	}
+
+	return &cfg, nil
+}
+
+// Validate checks if the configuration is valid
+func (c *Config) Validate() error {
+	if len(c.Organizations) == 0 {
+		return fmt.Errorf("no organizations configured")
+	}
+
+	for i, org := range c.Organizations {
+		if org.Host == "" {
+			return fmt.Errorf("organization %d: missing host", i)
+		}
+		if org.Name == "" {
+			return fmt.Errorf("organization %d: missing name", i)
+		}
+	}
+
+	return nil
+}
+
+// GetGitURL returns the git URL for an organization
+func (o *Organization) GetGitURL() string {
+	return fmt.Sprintf("%s:%s", o.Host, o.Name)
+}
+
+// FindOrganization finds an organization by host
+func (c *Config) FindOrganization(host string) *Organization {
+	for _, org := range c.Organizations {
+		if org.Host == host {
+			return &org
+		}
+	}
+	return nil
+}
\ No newline at end of file