Commit Briefs
Bring back object enumeration inside got-read-pack as a fast path.
The problem that was found in the earlier version has been fixed. ok op@
revert object enumeration in got-read-pack for now; needs more work
This implementation marked commits and trees as enumerated before all trees which they depend on were enumerated. This behaviour leads to incomplete pack files when a tree is only partially packed and got-read-pack hits a missing tree entry as a result. The algorithm must be reworked such that packed leave nodes are marked enumerated first, then bubble-up. Found by op@
open temporary files needed for delta application in got_repo_open()
This prepares for callers of got_repo_open() that cannot afford to open files in /tmp, such as gotwebd. In a follow-up change, we could ask such callers to pass in the required amount of open temporary files. One consequence is that got_repo_open() now requires the "cpath" pledge promise. Add the "cpath" promise to affected callers and remove it once the repository has been opened. ok tracey
run the search for deltas to reuse in got-read-pack
This significantly speeds up the deltification step of packing by avoiding imsg traffic. gotadmin no longer requests individual raw deltas from got-read-pack to check whether it can reuse them. Instead, got-read-pack obtains a list of objects we want to pack, and hands back the list of all deltas in its pack file which can be reused. Messages are now batched such that imsg buffers are filled as much as possible. Another advantage is that deltas we are not going to reuse will no longer be written to the delta cache file, saving disk space. Before this patch, any raw delta candidate was written to the delta cache file by got-read-pack, and the decision whether to reuse the delta happened afterwards in the gotadmin process. Code for reading individual raw deltas is now unused and could be removed at some point. ok op@
store deltas in compressed form while packing, both in memory and cache file
This reduces memory and disk space consumption during packing. with tweaks + memleak on error fix from op@ ok op@
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@
stop relying on commit cache for good performance of got_object_id_by_path()
Instead of internally opening and closing the same commit object over and over again, require callers to pass an open commit object in. Avoids an inherent dependency on the commit object cache for reasonable performance. ok op@
reuse existing deltas when creating pack files
tested by thomas, naddy, and myself
avoid the creation of new temporary files whenever a packed object is read
This speeds up the creation of pack files by about 30%.
add O_CLOEXEC (close-on-exec) flag to open(2) calls
suggested by millert ok thomas_adam
portable: tree/queue header fixes
sys/{tree,queue}.h are looked up via configure, and therefore are included via that mechanism.
Revert "cache raw objects in order to speed up gotadmin pack"
This reverts commit c565dfd37a157bab9556aceac96ff27d64525fc9.
portable: update to handle bloom, etc
Update portable to support changes for bloom, etc.
implement 'got diff -c' for diffing commits with optional filtering by path
Need for filtering by path sugggested by kn@ ok naddy@
portable: add FreeBSD support
This adds the capability to compile got-portable on FreeBSD.