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a12cbe23ef
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Jeff King a12cbe23ef rev-list: make empty --stdin not an error 
When we originally did the series that contains 7ba826290a
(revision: add rev_input_given flag, 2017-08-02) the intent
was that "git rev-list --stdin </dev/null" would similarly
become a successful noop. However, an attempt at the time to
do that did not work[1]. The problem is that rev_input_given
serves two roles:

 - it tells rev-list.c that it should not error out

 - it tells revision.c that it should not have the "default"
   ref kick (e.g., "HEAD" in "git log")

We want to trigger the former, but not the latter. This is
technically possible with a single flag, if we set the flag
only after revision.c's revs->def check. But this introduces
a rather subtle ordering dependency.

Instead, let's keep two flags: one to denote when we got
actual input (which triggers both roles) and one for when we
read stdin (which triggers only the first).

This does mean a caller interested in the first role has to
check both flags, but there's only one such caller. And any
future callers might want to make the distinction anyway
(e.g., if they care less about erroring out, and more about
whether revision.c soaked up our stdin).

In fact, we already keep such a flag internally in
revision.c for this purpose, so this is really just exposing
that to the caller (and the old function-local flag can go
away in favor of our new one).

[1] https://public-inbox.org/git/20170802223416.gwiezhbuxbdmbjzx@sigill.intra.peff.net/

Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-08-22 14:44:50 -07:00
..
add.c Merge branch 'ma/lockfile-cleanup' 2018-05-30 14:04:05 +09:00
am.c Merge branch 'nd/complete-config-vars' 2018-06-25 13:22:38 -07:00
annotate.c
apply.c apply: move lockfile into apply_state 2017-10-06 10:07:18 +09:00
archive.c correct error messages for NULL packet_read_line() 2018-02-08 12:37:30 -08:00
bisect--helper.c bisect: mention "view" as an alternative to "visualize" 2017-11-13 10:51:14 +09:00
blame.c Merge branch 'sb/blame-color' 2018-07-24 14:50:51 -07:00
branch.c Merge branch 'jk/branch-l-0-deprecation' 2018-07-18 12:20:31 -07:00
bundle.c bundle: use prefix_filename with bundle path 2017-03-21 11:18:41 -07:00
cat-file.c Merge branch 'sb/object-store-grafts' 2018-07-18 12:20:28 -07:00
check-attr.c config: don't include config.h by default 2017-06-15 12:56:22 -07:00
check-ignore.c check-ignore: fix mix of directories and other file types 2018-02-12 13:09:35 -08:00
check-mailmap.c config: don't include config.h by default 2017-06-15 12:56:22 -07:00
check-ref-format.c Merge branch 'jc/check-ref-format-oor' into maint 2017-11-15 12:04:57 +09:00
checkout-index.c parse-options: let OPT__FORCE take optional flags argument 2018-02-09 10:24:50 -08:00
checkout.c Merge branch 'sb/object-store-grafts' 2018-07-18 12:20:28 -07:00
clean.c help: add --config to list all available config 2018-05-29 14:51:28 +09:00
clone.c Merge branch 'jt/partial-clone-fsck-connectivity' 2018-07-24 14:50:47 -07:00
column.c column: fix off-by-one default width 2018-05-13 10:45:05 +09:00
commit-graph.c commit-graph: implement "--append" option 2018-04-11 10:43:02 +09:00
commit-tree.c object-store: move object access functions to object-store.h 2018-05-16 11:42:03 +09:00
commit.c Merge branch 'sb/object-store-grafts' 2018-07-18 12:20:28 -07:00
config.c Merge branch 'tb/config-default' 2018-07-24 14:50:46 -07:00
count-objects.c packfile: convert has_sha1_pack to object_id 2018-05-02 13:59:49 +09:00
credential.c credential: handle invalid arguments earlier 2017-05-30 14:45:03 +09:00
describe.c Merge branch 'sb/object-store-grafts' 2018-07-18 12:20:28 -07:00
diff-files.c submodule: remove gitmodules_config 2017-08-03 13:11:02 -07:00
diff-index.c Merge branch 'ma/builtin-unleak' 2017-10-07 16:27:55 +09:00
diff-tree.c object: rename function 'typename' to 'type_name' 2018-02-14 13:10:05 -08:00
diff.c Merge branch 'nd/diff-apply-ita' 2018-06-25 13:22:36 -07:00
difftool.c Merge branch 'sb/object-store-grafts' 2018-07-18 12:20:28 -07:00
fast-export.c Merge branch 'sb/object-store-grafts' 2018-07-18 12:20:28 -07:00
fetch-pack.c Merge branch 'bw/protocol-v2' 2018-05-08 15:59:16 +09:00
fetch.c Merge branch 'jt/connectivity-check-after-unshallow' 2018-07-24 14:50:44 -07:00
fmt-merge-msg.c object-store: move object access functions to object-store.h 2018-05-16 11:42:03 +09:00
for-each-ref.c provide --color option for all ref-filter users 2017-10-04 11:35:29 +09:00
fsck.c Merge branch 'bc/object-id' 2018-05-30 14:04:10 +09:00
gc.c Merge branch 'ma/lockfile-cleanup' 2018-05-30 14:04:05 +09:00
get-tar-commit-id.c distinguish error versus short read from read_in_full() 2017-09-27 15:45:24 +09:00
grep.c builtin/grep.c: add '--column' option to 'git-grep(1)' 2018-06-22 12:59:02 -07:00
hash-object.c Merge branch 'sb/object-store-grafts' 2018-07-18 12:20:28 -07:00
help.c Merge branch 'nd/command-list' 2018-06-01 15:06:37 +09:00
index-pack.c Merge branch 'jk/index-pack-maint' 2018-06-13 12:50:46 -07:00
init-db.c Merge branch 'rd/init-typo' 2018-06-01 15:06:40 +09:00
interpret-trailers.c Merge branch 'jk/trailers-parse' 2017-08-26 22:55:04 -07:00
log.c Merge branch 'xy/format-patch-prereq-patch-id-fix' 2018-07-18 12:20:29 -07:00
ls-files.c Merge branch 'nd/use-opt-int-set-f' 2018-06-01 15:06:38 +09:00
ls-remote.c Merge branch 'bw/server-options' 2018-05-23 14:38:15 +09:00
ls-tree.c object-store: move object access functions to object-store.h 2018-05-16 11:42:03 +09:00
mailinfo.c prefix_filename: return newly allocated string 2017-03-21 11:18:41 -07:00
mailsplit.c mailinfo & mailsplit: check for EOF while parsing 2017-05-08 12:18:19 +09:00
merge-base.c Merge branch 'ma/reduce-heads-leakfix' 2017-11-15 12:14:32 +09:00
merge-file.c config: don't include config.h by default 2017-06-15 12:56:22 -07:00
merge-index.c Convert GIT_SHA1_HEXSZ used for allocation to GIT_MAX_HEXSZ 2017-03-26 22:08:21 -07:00
merge-ours.c Merge branch 'bw/diff-opt-impl-to-bitfields' 2017-11-09 14:31:27 +09:00
merge-recursive.c
merge-tree.c Merge branch 'sb/object-store-grafts' 2018-07-18 12:20:28 -07:00
merge.c Merge branch 'sb/object-store-grafts' 2018-07-18 12:20:28 -07:00
mktag.c object-store: move object access functions to object-store.h 2018-05-16 11:42:03 +09:00
mktree.c object-store: move object access functions to object-store.h 2018-05-16 11:42:03 +09:00
mv.c Merge branch 'ma/lockfile-cleanup' 2018-05-30 14:04:05 +09:00
name-rev.c name-rev: use commit-slab for rev-name instead of commit->util 2018-05-21 14:07:20 +09:00
notes.c Merge branch 'sb/object-store-grafts' 2018-07-18 12:20:28 -07:00
pack-objects.c Merge branch 'jt/remove-pack-bitmap-global' 2018-07-18 12:20:30 -07:00
pack-redundant.c pack-redundant: convert linked lists to use struct object_id 2018-05-02 13:59:50 +09:00
pack-refs.c refs: add repository argument to get_main_ref_store 2018-04-12 11:38:56 +09:00
patch-id.c config: don't include config.h by default 2017-06-15 12:56:22 -07:00
prune-packed.c packfile: convert has_sha1_pack to object_id 2018-05-02 13:59:49 +09:00
prune.c shallow: add repository argument to is_repository_shallow 2018-05-18 08:13:10 +09:00
pull.c Merge branch 'sb/object-store-grafts' 2018-07-18 12:20:28 -07:00
push.c transport: convert transport_push to take a struct refspec 2018-05-18 06:19:44 +09:00
read-tree.c lock_file: move static locks into functions 2018-05-10 14:55:40 +09:00
rebase--helper.c rebase -i: introduce --rebase-merges=[no-]rebase-cousins 2018-04-26 12:28:43 +09:00
receive-pack.c Merge branch 'hs/push-cert-check-cleanup' 2018-07-24 14:50:48 -07:00
reflog.c Merge branch 'sb/object-store-grafts' 2018-07-18 12:20:28 -07:00
remote-ext.c consistently use "fallthrough" comments in switches 2017-09-22 12:49:57 +09:00
remote-fd.c remote-{ext,fd}: print usage message on invalid arguments 2017-05-30 14:45:04 +09:00
remote.c Merge branch 'sb/object-store-grafts' 2018-07-18 12:20:28 -07:00
repack.c repack: add --keep-pack option 2018-04-16 13:52:29 +09:00
replace.c Merge branch 'sb/object-store-grafts' 2018-07-18 12:20:28 -07:00
rerere.c avoid "write_in_full(fd, buf, len) != len" pattern 2017-09-14 15:17:59 +09:00
reset.c Merge branch 'sb/object-store-grafts' 2018-07-18 12:20:28 -07:00
rev-list.c rev-list: make empty --stdin not an error 2018-08-22 14:44:50 -07:00
rev-parse.c Merge branch 'sb/object-store-grafts' 2018-07-18 12:20:28 -07:00
revert.c sequencer: improve config handling 2017-12-13 11:15:14 -08:00
rm.c Merge branch 'ma/lockfile-cleanup' 2018-05-30 14:04:05 +09:00
send-pack.c Merge branch 'ms/send-pack-honor-config' 2018-06-28 12:53:30 -07:00
serve.c serve: introduce git-serve 2018-03-15 12:01:08 -07:00
shortlog.c Merge branch 'ps/contains-id-error-message' 2018-04-10 16:28:20 +09:00
show-branch.c show-branch: note about its object flags usage 2018-05-21 14:07:20 +09:00
show-index.c make show-index a builtin 2018-05-29 00:28:22 +09:00
show-ref.c object-store: move object access functions to object-store.h 2018-05-16 11:42:03 +09:00
stripspace.c config: don't include config.h by default 2017-06-15 12:56:22 -07:00
submodule--helper.c Merge branch 'ao/config-from-gitmodules' 2018-07-18 12:20:31 -07:00
symbolic-ref.c refs: rename constant REF_NODEREF to REF_NO_DEREF 2017-11-06 10:31:08 +09:00
tag.c Merge branch 'sb/object-store-grafts' 2018-07-18 12:20:28 -07:00
unpack-file.c object-store: move object access functions to object-store.h 2018-05-16 11:42:03 +09:00
unpack-objects.c Merge branch 'sb/object-store-grafts' 2018-07-18 12:20:28 -07:00
update-index.c Merge branch 'js/use-bug-macro' 2018-05-30 14:04:07 +09:00
update-ref.c update-ref --stdin: use skip_prefix() 2018-06-04 12:26:01 +09:00
update-server-info.c parse-options: let OPT__FORCE take optional flags argument 2018-02-09 10:24:50 -08:00
upload-archive.c upload-archive: handle "-h" option early 2017-05-30 14:45:04 +09:00
upload-pack.c Merge branch 'bw/protocol-v2' 2018-05-08 15:59:16 +09:00
var.c config: don't include config.h by default 2017-06-15 12:56:22 -07:00
verify-commit.c object-store: move object access functions to object-store.h 2018-05-16 11:42:03 +09:00
verify-pack.c config: don't include config.h by default 2017-06-15 12:56:22 -07:00
verify-tag.c ref-filter: use "struct object_id" consistently 2018-04-09 06:14:45 +09:00
worktree.c Merge branch 'tg/worktree-add-existing-branch' 2018-05-23 14:38:18 +09:00
write-tree.c cache-tree: convert write_*_as_tree to object_id 2018-03-14 09:23:47 -07:00