Module git_builtins 

The names of the commands built into Git 2.56.0. What: The names of the commands built into Git 2.56.0, and the test “is this word one of them”. Why: Git never expands an alias whose name is a built-in command, so a built-in word is the command that runs. Any other word may be an alias for anything, including worktree add, and resolving aliases is not ported; the caller needs to know which of the two it is looking at without starting Git.

In TS you’d write (pseudocode):

// GIT_BUILTIN_COMMANDS.has('status') === true; GIT_BUILTIN_COMMANDS.has('st') === false

Constants

GIT_BUILTIN_COMMANDS

What: Every name git --list-cmds=builtins prints for Git 2.56.0, in that order. &[&[u8]] is a borrowed list of byte spellings baked into the program. Sibling the reader might expect: &[&str], a list of UTF-8 texts. Why: Command words arrive as raw bytes and are compared without decoding, so the table holds bytes. A test compares the whole table with real Git’s own answer.

Functions

is_git_builtin

What: Whether word is a command built into Git 2.56.0. &[u8] borrows the word’s raw bytes; bool is true or false. Why: A built-in word cannot be an alias, so what the word says is what Git runs.