feat(cli): add --hot alias for --hot-reload flag

examples/vote/README.md

@@ -42,8 +42,8 @@ In a separate tab, open http://result.local.app.garden. The results there will r
 Hot-reloading needs to be enabled per service when starting `garden deploy` or `garden dev`:
 
 ```sh
-garden dev --hot-reload=vote
-# OR garden deploy -w --hot-reload=vote
+garden dev --hot=vote
+# OR garden deploy --hot=vote
 ```
 
 Then try making a change to one of the source files in the `vote` service, to see it synchronize into the

garden-service/src/cli/helpers.ts

@@ -98,12 +98,12 @@ export function falsifyConflictingParams(argv, params: ParameterValues<any>): Fa
 // Sywac specific transformers and helpers
 export function getOptionSynopsis(key: string, { alias }: Parameter<any>): string {
   if (alias && alias.length > 1) {
-    throw new InternalError("Option aliases can only be a single character", {
-      optionName: key,
-      alias,
-    })
+    return `--${alias}, --${key}`
+  } else if (alias) {
+    return `-${alias}, --${key}`
+  } else {
+    return `--${key}`
   }
-  return alias ? `-${alias}, --${key}` : `--${key}`
 }
 
 export function getArgSynopsis(key: string, param: Parameter<any>) {

garden-service/src/commands/deploy.ts

@@ -45,6 +45,7 @@ const deployOpts = {
       Use comma as a separator to specify multiple services. When this option is used,
       the command is run in watch mode (i.e. implicitly assumes the --watch/-w flag).
     `,
+    alias: "hot",
   }),
 }
 

garden-service/src/commands/dev.ts

@@ -39,7 +39,9 @@ const devOpts = {
   "hot-reload": new StringsParameter({
     help: deline`The name(s) of the service(s) to deploy with hot reloading enabled.
       Use comma as a separator to specify multiple services.
-    `}),
+    `,
+    alias: "hot",
+  }),
 }
 
 type Args = typeof devArgs
@@ -61,7 +63,8 @@ export class DevCommand extends Command<Args, Opts> {
     Examples:
 
         garden dev
-        garden dev --hot-reload=foo-service,bar-service # enable hot reloading for foo-service and bar-service
+        garden dev --hot-reload=foo-service       # enable hot reloading for foo-service
+        garden dev --hot=foo-service,bar-service  # enable hot reloading for foo-service and bar-service
   `
 
   options = devOpts