Use system.program-name. (#49)

.github/workflows/ci.yml

@@ -12,9 +12,9 @@ jobs:
         os: [ ubuntu-latest, windows-latest, macos-latest ]
         # The versions should contain (at least) the lowest requirement
         #    and a version that is more up to date.
-        toit-version: [ v2.0.0-alpha.120, latest ]
+        toit-version: [ v2.0.0-alpha.128, latest ]
         include:
-          - toit-version: v2.0.0-alpha.120
+          - toit-version: v2.0.0-alpha.128
             version-name: old
           - toit-version: latest
             version-name: new

package.yaml

@@ -1,7 +1,7 @@
 name: cli
 description: Tools, like an argument parser, to create command-line applications.
 environment:
-  sdk: ^2.0.0-alpha.120
+  sdk: ^2.0.0-alpha.128
 dependencies:
   fs:
     url: github.com/toitlang/pkg-fs

src/cli.toit

@@ -3,6 +3,7 @@
 // found in the package's LICENSE file.
 
 import uuid
+import system
 
 import .parser_
 import .utils_
@@ -157,13 +158,13 @@ class Command:
     subcommands_.add command
 
   /** Returns the help string of this command. */
-  help --invoked-command/string=program-name -> string:
+  help --invoked-command/string=system.program-name -> string:
     generator := HelpGenerator [this] --invoked-command=invoked-command
     generator.build-all
     return generator.to-string
 
   /** Returns the usage string of this command. */
-  usage --invoked-command/string=program-name -> string:
+  usage --invoked-command/string=system.program-name -> string:
     generator := HelpGenerator [this] --invoked-command=invoked-command
     generator.build-usage --as-section=false
     return generator.to-string
@@ -175,19 +176,19 @@ class Command:
     with the $Parsed output.
 
   The $invoked-command is used only for the usage message in case of an
-    error. It defaults to $program-name.
+    error. It defaults to $system.program-name.
 
   The default $ui prints to stdout and calls `exit 1` when $Ui.abort is called.
   */
-  run arguments/List --invoked-command=program-name --ui/Ui=Ui_ -> none:
+  run arguments/List --invoked-command=system.program-name --ui/Ui=Ui_ -> none:
     parser := Parser_ --ui=ui --invoked-command=invoked-command
     parsed := parser.parse this arguments
     parsed.command.run-callback_.call parsed
 
   /**
   Checks this command and all subcommands for errors.
   */
-  check --invoked-command=program-name:
+  check --invoked-command=system.program-name:
     check_ --path=[invoked-command]
 
   are-prefix-of-each-other_ str1/string str2/string -> bool: