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Taylor Blau 5045759de8 builtin/pack-objects.c: ensure included --stdin-packs exist 
A subsequent patch will teach `want_object_in_pack()` to set its
`*found_pack` and `*found_offset` poitners to NULL when the provided
pack does not pass the `is_pack_valid()` check.

The `--stdin-packs` mode of `pack-objects` is not quite prepared to
handle this. To prepare it for this change, do the following two things:

  - Ensure provided packs pass the `is_pack_valid()` check when
    collecting the caller-provided packs into the "included" and
    "excluded" lists.

  - Gracefully handle any _invalid_ packs being passed to
    `want_object_in_pack()`.

Calling `is_pack_valid()` early on makes it substantially less likely
that we will have to deal with a pack going away, since we'll have an
open file descriptor on its contents much earlier.

But even packs with open descriptors can become invalid in the future if
we (a) hit our open descriptor limit, forcing us to close some open
packs, and (b) one of those just-closed packs has gone away in the
meantime.

`add_object_entry_from_pack()` depends on having a non-NULL
`*found_pack`, since it passes that pointer to `packed_object_info()`,
meaning that we would SEGV if the pointer became NULL (like we propose
to do in `want_object_in_pack()` in the following patch).

But avoiding calling `packed_object_info()` entirely is OK, too, since
its only purpose is to identify which objects in the included packs are
commits, so that they can form the tips of the advisory traversal used
to discover the object namehashes.

Failing to do this means that at worst we will produce lower-quality
deltas, but it does not prevent us from generating the pack as long as
we can find a copy of each object from the disappearing pack in some
other part of the repository.

Co-authored-by: Victoria Dye <vdye@github.com>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-05-24 14:27:19 -07:00
..
add.c i18n: turn even more messages into "cannot be used together" ones 2022-01-05 13:31:00 -08:00
am.c Merge branch 'ja/i18n-similar-messages' 2022-01-10 11:52:56 -08:00
annotate.c
apply.c
archive.c use xopen() to handle fatal open(2) failures 2021-08-25 14:39:08 -07:00
bisect--helper.c bisect--helper: add space between colon and following sentence 2021-10-01 15:47:53 -07:00
blame.c Merge branch 'ld/sparse-diff-blame' 2021-12-21 15:03:17 -08:00
branch.c Merge branch 'js/branch-track-inherit' 2022-01-20 15:25:38 -08:00
bugreport.c hook-list.h: add a generated list of hooks, like config-list.h 2021-09-27 09:44:54 -07:00
bundle.c Merge branch 'ab/bundle-remove-verbose-option' 2021-10-03 21:49:20 -07:00
cat-file.c i18n: turn even more messages into "cannot be used together" ones 2022-01-05 13:31:00 -08:00
check-attr.c
check-ignore.c dir.[ch]: replace dir_init() with DIR_INIT 2021-07-01 12:32:22 -07:00
check-mailmap.c shortlog: remove unused(?) "repo-abbrev" feature 2021-01-12 14:04:42 -08:00
check-ref-format.c
checkout--worker.c pkt-line.[ch]: remove unused packet_read_line_buf() 2021-10-15 13:09:40 -07:00
checkout-index.c Merge branch 'mt/parallel-checkout-part-3' 2021-05-16 21:05:23 +09:00
checkout.c Merge branch 'ab/checkout-branch-info-leakfix' 2022-01-24 09:14:46 -08:00
clean.c clean: do not attempt to remove startup_info->original_cwd 2021-12-09 13:33:13 -08:00
clone.c Merge branch 'ps/lockfile-cleanup-fix' 2022-01-12 15:11:43 -08:00
column.c column: fix parsing of the '--nl' option 2021-08-26 14:36:27 -07:00
commit-graph.c Merge branch 'ab/ignore-replace-while-working-on-commit-graph' 2021-11-01 13:48:08 -07:00
commit-tree.c use xopen() to handle fatal open(2) failures 2021-08-25 14:39:08 -07:00
commit.c i18n: turn even more messages into "cannot be used together" ones 2022-01-05 13:31:00 -08:00
config.c urlmatch.[ch]: add and use URLMATCH_CONFIG_INIT 2021-10-01 14:22:51 -07:00
count-objects.c
credential-cache--daemon.c unix-socket: add backlog size option to unix_stream_listen() 2021-03-15 14:32:51 -07:00
credential-cache.c credential-cache: check for windows specific errors 2021-09-14 09:30:54 -07:00
credential-store.c Use a better name for the function interpolating paths 2021-07-26 12:17:16 -07:00
credential.c doc: fix git credential synopsis 2021-10-28 09:57:09 -07:00
describe.c i18n: turn even more messages into "cannot be used together" ones 2022-01-05 13:31:00 -08:00
diff-files.c Merge branch 'jc/diffcore-rotate' 2021-02-25 16:43:30 -08:00
diff-index.c diff-index: restore -c/--cc options handling 2021-09-07 11:11:35 -07:00
diff-tree.c i18n: refactor "foo and bar are mutually exclusive" 2022-01-05 13:29:23 -08:00
diff.c diff: enable and test the sparse index 2021-12-06 09:55:06 -08:00
difftool.c i18n: turn "options are incompatible" into "cannot be used together" 2022-01-05 13:29:23 -08:00
env--helper.c assert PARSE_OPT_NONEG in parse-options callbacks 2020-09-30 12:53:47 -07:00
fast-export.c Merge branch 'ja/i18n-similar-messages' 2022-01-10 11:52:56 -08:00
fast-import.c usage.c API users: use die_message() for "fatal :" + exit 128 2021-12-07 13:25:15 -08:00
fetch-pack.c connect, transport: encapsulate arg in struct 2021-02-05 13:49:54 -08:00
fetch.c Merge branch 'ps/lockfile-cleanup-fix' 2022-01-12 15:11:43 -08:00
fmt-merge-msg.c merge: allow to pretend a merge is made into a different branch 2021-12-20 14:55:02 -08:00
for-each-ref.c for-each-ref: delay parsing of --sort=<atom> options 2021-10-20 14:33:07 -07:00
for-each-repo.c builtin/for-each-repo: remove unnecessary argv copy to plug leak 2021-07-26 12:19:20 -07:00
fsck.c run-command API users: use strvec_pushl(), not argv construction 2021-11-25 22:15:07 -08:00
gc.c usage.c + gc: add and use a die_message_errno() 2021-12-07 13:25:16 -08:00
get-tar-commit-id.c
grep.c grep: fix a "path_list" memory leak 2021-10-23 10:45:25 -07:00
hash-object.c Merge branch 'jc/prefix-filename-allocates' into maint 2021-10-12 13:51:32 -07:00
help.c run-command API users: use strvec_pushl(), not argv construction 2021-11-25 22:15:07 -08:00
index-pack.c i18n: factorize "--foo requires --bar" and the like 2022-01-05 13:31:00 -08:00
init-db.c i18n: refactor "foo and bar are mutually exclusive" 2022-01-05 13:29:23 -08:00
interpret-trailers.c
log.c Merge branch 'ja/i18n-similar-messages' 2022-01-10 11:52:56 -08:00
ls-files.c Merge branch 'ja/i18n-similar-messages' 2022-01-10 11:52:56 -08:00
ls-remote.c for-each-ref: delay parsing of --sort=<atom> options 2021-10-20 14:33:07 -07:00
ls-tree.c tree.h API: simplify read_tree_recursive() signature 2021-03-20 16:09:26 -07:00
mailinfo.c mailinfo: allow squelching quoted CRLF warning 2021-05-10 15:06:22 +09:00
mailsplit.c use xopen() to handle fatal open(2) failures 2021-08-25 14:39:08 -07:00
merge-base.c
merge-file.c xdiff: implement a zealous diff3, or "zdiff3" 2021-12-01 14:45:58 -08:00
merge-index.c merge-index: ensure full index 2021-04-14 13:47:21 -07:00
merge-ours.c builtins + test helpers: use return instead of exit() in cmd_* 2021-06-09 09:15:58 +09:00
merge-recursive.c
merge-tree.c xdiff users: use designated initializers for out_line 2021-05-11 12:47:31 +09:00
merge.c Merge branch 'ja/i18n-similar-messages' 2022-01-10 11:52:56 -08:00
mktag.c fsck: report invalid object type-path combinations 2021-10-01 15:06:01 -07:00
mktree.c builtins + test helpers: use return instead of exit() in cmd_* 2021-06-09 09:15:58 +09:00
multi-pack-index.c builtin/multi-pack-index.c: don't leak concatenated options 2021-10-28 15:32:14 -07:00
mv.c mv: refuse to move sparse paths 2021-09-28 10:31:02 -07:00
name-rev.c name-rev: prefer shorter names over following merges 2021-12-04 23:39:34 -08:00
notes.c Merge branch 'ab/usage-die-message' 2022-01-10 11:52:53 -08:00
pack-objects.c builtin/pack-objects.c: ensure included --stdin-packs exist 2022-05-24 14:27:19 -07:00
pack-redundant.c builtin/pack-redundant: avoid casting buffers to struct object_id 2021-04-27 16:31:38 +09:00
pack-refs.c
patch-id.c
prune-packed.c
prune.c Merge branch 'ns/tmp-objdir' 2022-01-03 16:24:15 -08:00
pull.c fetch/pull: use the sparse index 2021-12-22 11:42:39 -08:00
push.c i18n: turn "options are incompatible" into "cannot be used together" 2022-01-05 13:29:23 -08:00
range-diff.c column, range-diff: downcase option description 2021-03-29 14:06:08 -07:00
read-tree.c Change unpack_trees' 'reset' flag into an enum 2021-09-27 13:38:37 -07:00
rebase.c i18n: turn even more messages into "cannot be used together" ones 2022-01-05 13:31:00 -08:00
receive-pack.c Merge branch 'ns/tmp-objdir' 2022-01-03 16:24:15 -08:00
reflog.c reflog + refs-backend: move "verbose" out of the backend 2021-12-22 16:24:14 -08:00
remote-ext.c
remote-fd.c
remote.c Merge branch 'ab/designated-initializers-more' 2021-10-18 15:47:57 -07:00
repack.c Merge branch 'ja/i18n-similar-messages' 2022-01-10 11:52:56 -08:00
replace.c run-command API users: use strvec_pushl(), not argv construction 2021-11-25 22:15:07 -08:00
rerere.c xdiff users: use designated initializers for out_line 2021-05-11 12:47:31 +09:00
reset.c i18n: turn even more messages into "cannot be used together" ones 2022-01-05 13:31:00 -08:00
rev-list.c i18n: turn even more messages into "cannot be used together" ones 2022-01-05 13:31:00 -08:00
rev-parse.c refs: drop "broken" flag from for_each_fullref_in() 2021-09-27 12:36:45 -07:00
revert.c Merge branch 'ds/mergies-with-sparse-index' 2021-09-20 15:20:45 -07:00
rm.c Merge branch 'ja/i18n-similar-messages' 2022-01-10 11:52:56 -08:00
send-pack.c Merge branch 'jk/http-push-status-fix' 2021-10-29 15:43:12 -07:00
shortlog.c parse-options.[ch]: consistently use "enum parse_opt_result" 2021-10-08 14:13:11 -07:00
show-branch.c i18n: turn "options are incompatible" into "cannot be used together" 2022-01-05 13:29:23 -08:00
show-index.c builtin/show-index: set the algorithm for object IDs 2021-04-27 16:31:39 +09:00
show-ref.c refs: switch peel_ref() to peel_iterated_oid() 2021-01-21 15:51:31 -08:00
sparse-checkout.c Merge branch 'ds/sparse-checkout-malformed-pattern-fix' 2022-01-10 11:52:49 -08:00
stash.c Merge branch 'en/keep-cwd' into maint 2022-01-28 16:45:52 -08:00
stripspace.c
submodule--helper.c i18n: refactor "foo and bar are mutually exclusive" 2022-01-05 13:29:23 -08:00
symbolic-ref.c symbolic-ref: don't leak shortened refname in check_symref() 2021-03-14 15:57:59 -07:00
tag.c i18n: tag.c factorize i18n strings 2022-01-05 13:31:00 -08:00
unpack-file.c
unpack-objects.c hash: provide per-algorithm null OIDs 2021-04-27 16:31:39 +09:00
update-index.c use xopen() to handle fatal open(2) failures 2021-08-25 14:39:08 -07:00
update-ref.c update-ref: fix streaming of status updates 2021-09-03 11:35:15 -07:00
update-server-info.c
upload-archive.c upload-archive: use regular "struct child_process" pattern 2021-11-25 22:15:07 -08:00
upload-pack.c upload-pack: document and rename --advertise-refs 2021-08-05 08:59:37 -07:00
var.c var: add GIT_DEFAULT_BRANCH variable 2021-11-03 13:25:36 -07:00
verify-commit.c
verify-pack.c
verify-tag.c
worktree.c i18n: factorize "--foo requires --bar" and the like 2022-01-05 13:31:00 -08:00
write-tree.c