plug a memory leak in got_fetch_pack(); patch by Mikhail

portable: make UUID includes generic Move the detection of UUID header files to be included portably. This will have no functional effect until MacOS detection is put in place.

factorize imsg_clear calls after imsg_flush failures imsg_clear frees and closes resources allocated as part of enqueueing imsgs so it's a no-op after reads. discussed with and ok stsp@

fix fd leak in got_fetch_pack, ok stsp@

whitespace

portable: tree/queue header fixes sys/{tree,queue}.h are looked up via configure, and therefore are included via that mechanism.

use RB_TREE instead of STAILQ to manage packindex bloom filters; much faster

portable: update to handle bloom, etc Update portable to support changes for bloom, etc.

use RB_TREE instead of STAILQ to manage packindex bloom filters; much faster

let 'got fetch' send all references to the server to avoid redundant downloads Problem reported by naddy. ok naddy

fix 'got fetch' downloading too many objects in some cases Always announce all local references to the server when fetching changes. We used to do this only in mirror mode. In regular mode only refs/tags and refs/remotes/origin were announced, which could result in unnecessary downloads if relevant objects exist in refs/heads or elsewhere.

portable: add FreeBSD support This adds the capability to compile got-portable on FreeBSD.

portable: initial Linux compilation This commit modifies the GoT main branch to be able to compile it under linux.

rename got_fetch_parse_uri() to got_dial_parse_uri() This function is now being used by both 'got fetch' and 'got send' so its former name was misleading.

de-duplicate a constant used by both 'got fetch' and 'got send' Both GOT_FETCH_PKTMAX and GOT_SEND_PKTMAX had the same value. Declare this value as GOT_PKT_MAX in got_lib_pkt.h instead.

move duplicated dial_ssh() and dial_git() functions into a common file These functions are used by 'got send' and 'got fetch' in order to open network connections to a server. Move them into new file lib/dial.c and declare relevant functions in got_dial.h and lib/got_lib_dial.h. No functional change.

use socketpair(2) instead of pipe(2) for bi-directional communication On Linux, pipes returned from pipe(2) only work in one direction. This broke 'got clone' over ssh in the -portable version because got-fetch-pack assumes it can use its fetchfd for both reading and writing. I wrote a complicated diff to use two pipe(2) calls instead of one, but millert suggested a simpler solution: Use socketpair(2) instead of pipe(2). ok millert jrick tracey

dial_git(): fix memory leak and simplify Simplify dial_git() by formatting the initial Git protocol packet with dprintf, suggested by millert, and stop leaking an asprintf buffer. ok stsp

fix error checking in dial_ssh()

make close(2) failure checks consistent; check 'close() == -1' everywhere ok millert, naddy

switch reflist to TAILQ; insert elements more efficiently for sorted input ok naddy

avoid signed vs unsigned comparisons in fetch.c ssizeof() macro idea courtesy of millert@ ok millert@

use size_t for loop indices to avoid signedness warnings; from emaste@freebsd

use fchmod(2) instead of chmod(2). it is less racy, and we just opened the descriptor. ok naddy@ stsp@

fix permissions mode bits for fetched pack files; patch by Alisdair MacLeod