Add `writeas fetch` command

This configures a directory for posts and downloads all posts on the
authenticated account into the directory, organizing collection posts
into their own subdirectories.

cmd/writeas/cli.go

@@ -197,6 +197,22 @@ func main() {
 			},
 		},
 		{
+			Name:   "fetch",
+			Usage:  "Fetch authenticated user's Write.as posts",
+			Action: cmdPull,
+			Flags: []cli.Flag{
+				cli.BoolFlag{
+					Name:  "tor, t",
+					Usage: "Authenticate via Tor hidden service",
+				},
+				cli.IntFlag{
+					Name:  "tor-port",
+					Usage: "Use a different port to connect to Tor",
+					Value: 9150,
+				},
+			},
+		},
+		{
 			Name:   "auth",
 			Usage:  "Authenticate with Write.as",
 			Action: cmdAuth,

cmd/writeas/sync.go

@@ -0,0 +1,112 @@
+package main
+
+import (
+	//"github.com/writeas/writeas-cli/sync"
+	"fmt"
+	"github.com/writeas/writeas-cli/fileutils"
+	"gopkg.in/urfave/cli.v1"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+)
+
+const (
+	postFileExt = ".txt"
+)
+
+func cmdPull(c *cli.Context) error {
+	cfg, err := loadConfig()
+	if err != nil {
+		return err
+	}
+	// Create posts directory if needed
+	if cfg.Posts.Directory == "" {
+		syncSetUp(cfg)
+	}
+
+	// Fetch posts
+	cl, err := newClient(c, true)
+	if err != nil {
+		return err
+	}
+
+	posts, err := cl.GetUserPosts()
+	if err != nil {
+		return err
+	}
+
+	for _, p := range *posts {
+		postFilename := p.ID
+		collDir := ""
+		if p.Collection != nil {
+			postFilename = p.Slug
+			// Create directory for collection
+			collDir = p.Collection.Alias
+			if !fileutils.Exists(filepath.Join(cfg.Posts.Directory, collDir)) {
+				Info(c, "Creating folder "+collDir)
+				err = os.Mkdir(filepath.Join(cfg.Posts.Directory, collDir), 0755)
+				if err != nil {
+					Errorln("Error creating blog directory %s: %s. Skipping post %s.", collDir, err, postFilename)
+					continue
+				}
+			}
+		}
+		postFilename += postFileExt
+
+		// Write file
+		err = ioutil.WriteFile(filepath.Join(cfg.Posts.Directory, collDir, postFilename), []byte(p.Content), 0644)
+		if err != nil {
+			Errorln("Error creating file %s: %s", postFilename, err)
+		}
+		Info(c, "Saved post "+postFilename)
+
+		// Update mtime and atime on files
+		modTime := p.Updated.Local()
+		err = os.Chtimes(filepath.Join(cfg.Posts.Directory, collDir, postFilename), modTime, modTime)
+		if err != nil {
+			Errorln("Error setting time on %s: %s", postFilename, err)
+		}
+	}
+
+	return nil
+}
+
+// TODO: move UserConfig to its own package, and this to sync package
+func syncSetUp(cfg *UserConfig) error {
+	// Prompt for posts directory
+	defaultDir, err := os.Getwd()
+	if err != nil {
+		return err
+	}
+	var dir string
+	fmt.Printf("Posts directory? [%s]: ", defaultDir)
+	fmt.Scanln(&dir)
+	if dir == "" {
+		dir = defaultDir
+	}
+
+	// Create directory if needed
+	if !fileutils.Exists(dir) {
+		err = os.MkdirAll(dir, 0700)
+		if err != nil {
+			if debug {
+				Errorln("Error creating data directory: %s", err)
+			}
+			return err
+		}
+		fmt.Println("Created posts directory.")
+	}
+
+	// Save preference
+	cfg.Posts.Directory = dir
+	err = saveConfig(cfg)
+	if err != nil {
+		if debug {
+			Errorln("Unable to save config: %s", err)
+		}
+		return err
+	}
+	fmt.Println("Saved config.")
+
+	return nil
+}

cmd/writeas/userconfig.go

@@ -18,8 +18,13 @@ type (
 	APIConfig struct {
 	}
 
+	PostsConfig struct {
+		Directory string `ini:"directory"`
+	}
+
 	UserConfig struct {
-		API APIConfig `ini:"api"`
+		API   APIConfig   `ini:"api"`
+		Posts PostsConfig `ini:"posts"`
 	}
 )