Initial commit

Cli.py

@@ -0,0 +1,70 @@
+"""Command-line mode, for machines without a desktop (e.g. a Fedora Server box):
+
+    SaraSuite list
+    SaraSuite install <Name> [--set Id=Value ...] [--option Id=on|off ...]
+    SaraSuite update <Name>
+    SaraSuite remove <Name> [--configs] [--keep-runtime]
+
+Install uses each question's default and each option's default unless set.
+"""
+
+import argparse
+
+from Installer import Apply, GetStatus, Remove
+from Manifests import LoadPrograms
+
+
+def _Pairs(Items: list[str]) -> dict[str, str]:
+    Pairs = {}
+    for Item in Items:
+        Key, Separator, Value = Item.partition("=")
+        if not Separator:
+            raise SystemExit(f"Expected Id=Value, got {Item!r}")
+        Pairs[Key] = Value
+    return Pairs
+
+
+def Run(Arguments: list[str]) -> int:
+    Parser = argparse.ArgumentParser(prog="SaraSuite")
+    Commands = Parser.add_subparsers(dest="Command", required=True)
+    Commands.add_parser("list")
+    Install = Commands.add_parser("install")
+    Install.add_argument("Name")
+    Install.add_argument("--set", action="append", default=[], dest="Answers")
+    Install.add_argument("--option", action="append", default=[], dest="Options")
+    Commands.add_parser("update").add_argument("Name")
+    RemoveCommand = Commands.add_parser("remove")
+    RemoveCommand.add_argument("Name")
+    RemoveCommand.add_argument("--configs", action="store_true")
+    RemoveCommand.add_argument("--keep-runtime", action="store_true")
+    Args = Parser.parse_args(Arguments)
+
+    Programs = {Program.Name.lower(): Program for Program in LoadPrograms()}
+    if Args.Command == "list":
+        for Program in Programs.values():
+            Current = GetStatus(Program)
+            State = "update available" if Current.UpdateAvailable else "installed" if Current.Installed else "not installed"
+            print(f"{Program.Name:12} {State:16} {Current.Error}")
+        return 0
+
+    Program = Programs.get(Args.Name.lower())
+    if Program is None:
+        print(f"Unknown program {Args.Name!r}. Known: {', '.join(P.Name for P in Programs.values())}")
+        return 1
+    Installed = GetStatus(Program).Installed
+
+    if Args.Command == "install":
+        if Installed:
+            print(f"{Program.Name} is already installed; use update.")
+            return 1
+        Options = {Option.Id: Option.Default for Option in Program.Options}
+        Options.update({Key: Value.lower() in ("on", "yes", "true", "1") for Key, Value in _Pairs(Args.Options).items()})
+        Apply(Program, print, Options, _Pairs(Args.Answers))
+    elif Args.Command == "update":
+        if not Installed:
+            print(f"{Program.Name} isn't installed.")
+            return 1
+        Apply(Program, print)
+    elif Args.Command == "remove":
+        Remove(Program, Args.configs, not Args.keep_runtime, print)
+    return 0