do not crash when a meta-data file in the .got directory is empty Reported by Matthias Schmidt ok tb@

got_worktree_open: do not skip a locked worktree When trying to open a worktree from a list of metadata directories (.got, .cvg), error out when a worktree is found but is already locked. Skipping it and proceeding would result in a confusing "no git repository found" error from tog and gotadmin. ok stsp

use a separate .cvg meta data directory for cvg(1) work trees This prevents mixing the use of got and cvg clients in the same work tree. Avoids confusion going forward while cvg differentiates itself further. tog(1) and gotadmin(1) remain compatible with both work tree formats. These tools only read work trees to locate the corresponding repository.

include sha2.h too where sha1.h is included In preparation for wide sha256 support; stsp@ agrees. Change done mechanically with find . -iname \*.[cy] -exec sam {} + X ,x/<sha1\.h>/i/\n#include <sha2.h>

add missing check for errors from got_gotconfig_read() in open_worktree()

using a local packfd variable in open_worktree() is sufficient

move got_opentempfd out of got_repo_open. ok stsp@ thanks for all the help massaging this diff

inline struct got_object_id in struct got_object_qid Saves us from doing a malloc/free call for every item on the list. ok op@

add O_CLOEXEC (close-on-exec) flag to open(2) calls suggested by millert ok thomas_adam

let gotadmin find the repository automatically if invoked in a work tree Move a small amount of code from worktree.c to a new file worktree_open.c, which contains everything required to open and close a work tree and inspect some of its basic parameters. This can be used by gotadmin. ok tracey