Support publishing files

Adds new `writeas publish <file>` command

GUIDE.md

@@ -18,6 +18,7 @@ writeas [global options] command [command options] [arguments...]
 COMMANDS:
    post     Alias for default action: create post from stdin
    new      Compose a new post from the command-line and publish
+   publish  Publish a file to Write.as
    delete   Delete a post
    update   Update (overwrite) a post
    get      Read a raw post

README.md

@@ -58,6 +58,7 @@ writeas [global options] command [command options] [arguments...]
 COMMANDS:
    post     Alias for default action: create post from stdin
    new      Compose a new post from the command-line and publish
+   publish  Publish a file to Write.as
    delete   Delete a post
    update   Update (overwrite) a post
    get      Read a raw post

cmd/writeas/cli.go

@@ -116,6 +116,12 @@ func main() {
 			Flags:  postFlags,
 		},
 		{
+			Name:        "publish",
+			Usage:       "Publish a file to Write.as",
+			Action:      cmdPublish,
+			Flags:       postFlags,
+		},
+		{
 			Name:   "delete",
 			Usage:  "Delete a post",
 			Action: cmdDelete,

cmd/writeas/commands.go

@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"github.com/howeyc/gopass"
 	"gopkg.in/urfave/cli.v1"
+	"io/ioutil"
 	"os"
 )
 
@@ -44,6 +45,18 @@ func cmdNew(c *cli.Context) error {
 	return nil
 }
 
+func cmdPublish(c *cli.Context) error {
+	filename := c.Args().Get(0)
+	if filename == "" {
+		return cli.NewExitError("usage: writeas publish <filename>", 1)
+	}
+	content, err := ioutil.ReadFile(filename)
+	if err != nil {
+		return err
+	}
+	return handlePost(content, c)
+}
+
 func cmdDelete(c *cli.Context) error {
 	friendlyID := c.Args().Get(0)
 	token := c.Args().Get(1)