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Jeff King fb85db84dc rev-list: disable bitmaps when "-n" is used with listing objects
You can ask rev-list to use bitmaps to speed up an --objects
traversal, which should generally give you your answers much
faster.

Likewise, you can ask rev-list to limit such a traversal
with `-n`, in which case we'll show only a limited set of
commits (and only the tree and commit objects directly
reachable from those commits).

But if you do both together, the results are nonsensical. We
end up limiting any fallback traversal we do to _find_ the
bitmaps, but the actual set of objects we output will be
picked arbitrarily from the union of any bitmaps we do find,
and will involve the objects of many more commits.

It's possible that somebody might want this as a "show me
what you can, but limit the amount of work you do" flag.
But as with the prior commit clamping "--count", the results
are basically non-deterministic; you'll get the values from
some commits between `n` and the total number, and you can't
tell which.

And unlike the `--count` case, we can't easily generate the
"real" value from the bitmap values (you can't just walk
back `-n` commits and subtract out the reachable objects
from the boundary commits; the bitmaps for `X` record its
total reachability, so you don't know which objects are
directly from `X` itself, which from `X^`, and so on).

So let's just fallback to the non-bitmap code path in this
case, so we always give a sane answer.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-03 09:01:02 -07:00
..
add.c Merge branch 'jk/add-e-kill-editor' into maint 2015-06-05 12:00:09 -07:00
annotate.c annotate: use argv_array 2014-07-16 11:10:11 -07:00
apply.c builtin/apply.c: fix a memleak 2015-03-23 11:12:58 -07:00
archive.c
bisect--helper.c
blame.c Sync with 2.3.10 2015-09-28 15:28:31 -07:00
branch.c Merge branch 'dl/branch-error-message' into maint 2015-06-05 12:00:29 -07:00
bundle.c bundle: verify arguments more strictly 2015-05-08 10:52:11 -07:00
cat-file.c Merge branch 'ah/usage-strings' 2015-02-11 13:44:20 -08:00
check-attr.c standardize usage info string format 2015-01-14 09:32:04 -08:00
check-ignore.c standardize usage info string format 2015-01-14 09:32:04 -08:00
check-mailmap.c standardize usage info string format 2015-01-14 09:32:04 -08:00
check-ref-format.c standardize usage info string format 2015-01-14 09:32:04 -08:00
checkout-index.c standardize usage info string format 2015-01-14 09:32:04 -08:00
checkout.c standardize usage info string format 2015-01-14 09:32:04 -08:00
clean.c Merge branch 'rs/janitorial' into maint 2015-06-16 14:33:47 -07:00
clone.c clone: simplify string handling in guess_dir_name() 2015-07-09 14:21:29 -07:00
column.c standardize usage info string format 2015-01-14 09:32:04 -08:00
commit-tree.c commit-tree: simplify parsing of option -S using skip_prefix() 2014-12-29 09:32:45 -08:00
commit.c Merge branch 'pt/xdg-config-path' into maint 2015-06-05 12:00:04 -07:00
config.c Merge branch 'pt/xdg-config-path' into maint 2015-06-05 12:00:04 -07:00
count-objects.c count-objects: use for_each_loose_file_in_objdir 2014-10-16 10:10:41 -07:00
credential.c
describe.c standardize usage info string format 2015-01-14 09:32:04 -08:00
diff-files.c standardize usage info string format 2015-01-14 09:32:04 -08:00
diff-index.c standardize usage info string format 2015-01-14 09:32:04 -08:00
diff-tree.c standardize usage info string format 2015-01-14 09:32:04 -08:00
diff.c lockfile.h: extract new header file for the functions in lockfile.c 2014-10-01 13:56:14 -07:00
fast-export.c teach fast-export an --anonymize option 2014-08-27 10:42:16 -07:00
fetch-pack.c standardize usage info string format 2015-01-14 09:32:04 -08:00
fetch.c Merge branch 'mh/refs-have-new' 2015-03-05 12:45:39 -08:00
fmt-merge-msg.c Merge branch 'jc/plug-fmt-merge-msg-leak' into maint 2015-06-05 12:00:05 -07:00
for-each-ref.c Merge branch 'mh/reporting-broken-refs-from-for-each-ref' into maint 2015-08-03 10:41:31 -07:00
fsck.c fsck: report errors if reflog entries point at invalid objects 2015-06-08 12:40:36 -07:00
gc.c standardize usage info string format 2015-01-14 09:32:04 -08:00
get-tar-commit-id.c use skip_prefix() to avoid more magic numbers 2014-10-07 11:09:16 -07:00
grep.c Merge branch 'ps/grep-help-all-callback-arg' 2015-04-20 15:28:34 -07:00
hash-object.c Merge branch 'jc/hash-object' into maint 2015-05-26 13:49:25 -07:00
help.c Merge branch 'sb/leaks' 2015-03-20 13:11:53 -07:00
index-pack.c Merge branch 'jk/index-pack-reduce-recheck' into maint 2015-07-27 12:21:38 -07:00
init-db.c Merge branch 'jk/init-core-worktree-at-root' into maint 2015-05-13 14:05:49 -07:00
interpret-trailers.c trailer: add interpret-trailers command 2014-10-13 13:55:27 -07:00
log.c Merge branch 'jc/do-not-feed-tags-to-clear-commit-marks' into maint 2015-07-15 11:41:16 -07:00
ls-files.c Merge branch 'jc/report-path-error-to-dir' into maint 2015-03-31 14:53:08 -07:00
ls-remote.c standardize usage info string format 2015-01-14 09:32:04 -08:00
ls-tree.c ls-tree: disable negative pathspec because it's not supported 2014-12-01 11:33:45 -08:00
mailinfo.c standardize usage info string format 2015-01-14 09:32:04 -08:00
mailsplit.c mailsplit: remove unnecessary unlink(2) call 2014-10-07 10:49:57 -07:00
merge-base.c standardize usage info string format 2015-01-14 09:32:04 -08:00
merge-file.c Sync with 2.3.10 2015-09-28 15:28:31 -07:00
merge-index.c standardize usage info string format 2015-01-14 09:32:04 -08:00
merge-ours.c
merge-recursive.c
merge-tree.c react to errors in xdi_diff 2015-09-28 14:57:10 -07:00
merge.c Revert "merge: pass verbosity flag down to merge-recursive" 2015-04-16 08:03:14 -07:00
mktag.c
mktree.c builtin/mktree.c: use ALLOC_GROW() in append_to_tree() 2014-03-03 14:54:45 -08:00
mv.c standardize usage info string format 2015-01-14 09:32:04 -08:00
name-rev.c standardize usage info string format 2015-01-14 09:32:04 -08:00
notes.c standardize usage info string format 2015-01-14 09:32:04 -08:00
pack-objects.c list-objects: pass full pathname to callbacks 2016-03-16 10:41:04 -07:00
pack-redundant.c standardize usage info string format 2015-01-14 09:32:04 -08:00
pack-refs.c standardize usage info string format 2015-01-14 09:32:04 -08:00
patch-id.c patch-id: make it stable against hunk reordering 2014-06-10 13:09:24 -07:00
prune-packed.c standardize usage info string format 2015-01-14 09:32:04 -08:00
prune.c prune: turn on ref_paranoia flag 2015-03-20 12:40:56 -07:00
push.c push: allow --follow-tags to be set by config push.followTags 2015-03-14 15:08:35 -07:00
read-tree.c lockfile.h: extract new header file for the functions in lockfile.c 2014-10-01 13:56:14 -07:00
receive-pack.c Merge branch 'jc/update-instead-into-void' 2015-04-14 11:49:10 -07:00
reflog.c reflog: improve and update documentation 2015-03-05 12:35:36 -08:00
remote-ext.c use skip_prefix() to avoid more magic numbers 2014-10-07 11:09:16 -07:00
remote-fd.c
remote.c Merge branch 'ah/usage-strings' 2015-02-11 13:44:20 -08:00
repack.c Merge branch 'jk/prune-with-corrupt-refs' 2015-03-25 12:54:26 -07:00
replace.c ref_transaction_update(): remove "have_old" parameter 2015-02-17 11:22:50 -08:00
rerere.c Sync with 2.3.10 2015-09-28 15:28:31 -07:00
reset.c lockfile.h: extract new header file for the functions in lockfile.c 2014-10-01 13:56:14 -07:00
rev-list.c rev-list: disable bitmaps when "-n" is used with listing objects 2016-06-03 09:01:02 -07:00
rev-parse.c standardize usage info string format 2015-01-14 09:32:04 -08:00
revert.c standardize usage info string format 2015-01-14 09:32:04 -08:00
rm.c use file_exists() to check if a file exists in the worktree 2015-05-20 13:49:10 -07:00
send-pack.c send-pack.c: add --atomic command line argument 2015-01-07 19:56:44 -08:00
shortlog.c standardize usage info string format 2015-01-14 09:32:04 -08:00
show-branch.c Sync with 2.3.9 2015-09-04 10:34:19 -07:00
show-ref.c standardize usage info string format 2015-01-14 09:32:04 -08:00
stripspace.c
symbolic-ref.c standardize usage info string format 2015-01-14 09:32:04 -08:00
tag.c Merge branch 'jk/tag-h-column-is-a-listing-option' into maint 2015-03-27 13:00:23 -07:00
unpack-file.c
unpack-objects.c index-pack: terminate object buffers with NUL 2014-12-09 11:56:37 -08:00
update-index.c update-index: fix a memleak 2015-03-22 12:26:31 -07:00
update-ref.c ref_transaction_verify(): new function to check a reference's value 2015-02-17 11:24:59 -08:00
update-server-info.c
upload-archive.c
var.c
verify-commit.c standardize usage info string format 2015-01-14 09:32:04 -08:00
verify-pack.c standardize usage info string format 2015-01-14 09:32:04 -08:00
verify-tag.c standardize usage info string format 2015-01-14 09:32:04 -08:00
write-tree.c