Module subvolume_arguments 

The grammar of git cli-git migrate-to-subvolume. What: The grammar of git cli-git migrate-to-subvolume, the wrapper’s command that converts the main checkout into a btrfs subvolume, and the help text. Why: The command name says what it does and follows the other multi-word git cli-git spellings (service status). Running it migrates after the preflight; --dry-run previews; --rollback and --remove-old are the two ways out; the rest only switch off a part of the migration. Modes that exclude each other, and switches that belong to one mode, are refused with the reason.

In TS you’d write (pseudocode):

parseMigrateArguments(['--dry-run']) // => { mode: 'migrate', dryRun: true, nestedWorktrees: true, refreshIndexes: true }

Structs

MigrateArguments

What: A parsed invocation. Why: The command acts on a typed value; nothing downstream re-reads raw arguments.

Enums

MigrateMode

What: Which of the three things the command does. Why: They exclude each other.

Constants

MIGRATE_HELP

The usage and the meaning of each option, printed for --help and after a refused invocation.

Functions

parse_migrate_arguments

What: Parse the arguments after migrate-to-subvolume. Result<MigrateArguments, String> is the parse, or the reason the invocation is refused. Why: Each refusal names the option and says what to use instead, so the person is never left to guess.