/*
 * montauk-ownership.h -- answer git's "is this repository mine?" question.
 *
 * FORCE-INCLUDED into every translation unit (-include, see the port
 * Makefile), because it has to win the #ifndef guard in git-compat-util.h.
 *
 * git's safe.directory check exists because on a multi-user system a
 * repository owned by somebody else can attack you the moment you run git in
 * it -- its config names hooks, pagers and external diff commands that would
 * run as you. The default implementation answers by comparing the owner
 * reported by lstat() against geteuid().
 *
 * Neither side of that comparison means anything on MontaukOS. The VFS stores
 * no owner at all -- stat() zero-fills st_uid, on the ramdisk, on ext2 and on
 * FAT32 alike -- and there is one session user, so the compat layer reports a
 * single fixed uid for everybody (see montauk-compat.c). The comparison is
 * therefore 0 == 1000, false for EVERY repository: unpatched, git refuses to
 * work in any directory on the system, which is what
 *
 *     fatal: detected dubious ownership in repository at '0:/users/...'
 *
 * was. Picking the uid to match the zero from stat() would only paper over it,
 * and would mean claiming to be root.
 *
 * So answer honestly: every file belongs to the one user, and the check has
 * nothing to distinguish. This is the same seam Windows uses for the same
 * reason (compat/mingw.h defines is_path_owned_by_current_sid here).
 *
 * WHAT THIS GIVES UP: nothing today, and something real later. When MontaukOS
 * grows per-file ownership, this must go back to comparing owners -- otherwise
 * git in another user's repository will run that repository's hooks as you.
 */
#ifndef _MONTAUK_GIT_OWNERSHIP_H_
#define _MONTAUK_GIT_OWNERSHIP_H_

/*
 * A macro, not a function: this header is force-included before anything
 * declares struct strbuf, so the report parameter cannot be named in a
 * prototype here. Both arguments are still evaluated-as-void so an unused
 * variable at a call site does not start warning.
 */
#define is_path_owned_by_current_user(path, report) \
	((void)(path), (void)(report), 1)

#endif /* _MONTAUK_GIT_OWNERSHIP_H_ */