add config parameter

README.md

@@ -342,8 +342,7 @@ mark -h | --help
 - `-b <url>` or `--base-url <url>` – Base URL for Confluence.
     Alternative option for `base_url` config field.
 - `-f <file>` — Use specified markdown file(s) for converting to html. Supports file globbing patterns (needs to be quoted).
-- `-c <file>` — Specify configuration file which should be used for reading
-    Confluence page URL and markdown file path.
+- `-c <path>` or `--config <path>` — Specify a path to the configuration file.
 - `-k` — Lock page editing to current user only to prevent accidental
     manual edits over Confluence Web UI.
 - `--drop-h1` – Don't include H1 headings in Confluence output.
@@ -354,11 +353,11 @@ mark -h | --help
 - `-h | --help` — Show help screen and call 911.
 
 You can store user credentials in the configuration file, which should be
-located in ~/.config/mark with the following format (TOML):
+located in ~/.config/mark (or specified via `-c --config <path>`) with the following format (TOML):
 
 ```toml
-username = "smith"
-password = "matrixishere"
+username = "your-email"
+password = "password-or-api-key-for-confluence-cloud"
 # If you are using Confluence Cloud add the /wiki suffix to base_url
 base_url = "http://confluence.local"
 ```

main.go

@@ -32,6 +32,7 @@ type Flags struct {
 	Password       string `docopt:"-p"`
 	TargetURL      string `docopt:"-l"`
 	BaseURL        string `docopt:"--base-url"`
+	Config         string `docopt:"--config"`
 }
 
 const (
@@ -55,7 +56,8 @@ Options:
                         above).
   -b --base-url <url>  Base URL for Confluence.
                         Alternative option for base_url config field.
-  -f <file>            Use specified markdown file(s) for converting to html. Supports file globbing patterns (needs to be quoted).
+  -f <file>            Use specified markdown file(s) for converting to html.
+                        Supports file globbing patterns (needs to be quoted).
   -k                   Lock page editing to current user only to prevent accidental
                         manual edits over Confluence Web UI.
   --drop-h1            Don't include H1 headings in Confluence output.
@@ -66,13 +68,15 @@ Options:
   --trace              Enable trace logs.
   --color <when>       Display logs in color. Possible values: auto, never.
                         [default: auto]
-  -h --help            Show this screen and call 911.
+  -c --config <path>   Use the specified configuration file.
+                        [default: $HOME/.config/mark]
+  -h --help            Show this message.
   -v --version         Show version.
 `
 )
 
 func main() {
-	cmd, err := docopt.ParseArgs(usage, nil, version)
+	cmd, err := docopt.ParseArgs(os.ExpandEnv(usage), nil, version)
 	if err != nil {
 		panic(err)
 	}
@@ -100,7 +104,7 @@ func main() {
 		log.GetLogger().SetOutput(os.Stderr)
 	}
 
-	config, err := LoadConfig(filepath.Join(os.Getenv("HOME"), ".config/mark"))
+	config, err := LoadConfig(flags.Config)
 	if err != nil {
 		log.Fatal(err)
 	}