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8 hoursMerge branch 'rs/checkout-b-track-error'Junio C Hamano
The error message from "git checkout -b foo -t bar baz" was confusing. * rs/checkout-b-track-error: checkout: improve error messages for -b with extra argument checkout: add tests for -b and --track
8 hoursMerge branch 'an/merge-single-strategy-optim'Junio C Hamano
Code optimization for a common case. * an/merge-single-strategy-optim: merge: optimization to skip evaluate_result for single strategy
9 daysMerge branch 'ds/multi-pack-verify'Junio C Hamano
Fix for a copy-and-paste error introduced during 2.20 era. * ds/multi-pack-verify: fsck: use ERROR_MULTI_PACK_INDEX
9 dayscheckout: improve error messages for -b with extra argumentRené Scharfe
When we try to create a branch "foo" based on "origin/master" and give git commit -b an extra unsupported argument "bar", it confusingly reports: $ git checkout -b foo origin/master bar fatal: 'bar' is not a commit and a branch 'foo' cannot be created from it $ git checkout --track -b foo origin/master bar fatal: 'bar' is not a commit and a branch 'foo' cannot be created from it That's wrong, because it very well understands that "origin/master" is supposed to be the start point for the new branch and not "bar". Check if we got a commit and show more fitting messages in that case instead: $ git checkout -b foo origin/master bar fatal: Cannot update paths and switch to branch 'foo' at the same time. $ git checkout --track -b foo origin/master bar fatal: '--track' cannot be used with updating paths Original-patch-by: Jeff King <peff@peff.net> Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-05-19fsck: use ERROR_MULTI_PACK_INDEXDerrick Stolee
The multi-pack-index was added to the data verified by git-fsck in ea5ae6c3 "fsck: verify multi-pack-index". This implementation was based on the implementation for verifying the commit-graph, and a copy-paste error kept the ERROR_COMMIT_GRAPH flag as the bit set when an error appears in the multi-pack-index. Add a new flag, ERROR_MULTI_PACK_INDEX, and use that instead. Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-05-19merge: optimization to skip evaluate_result for single strategyAndrew Ng
For a merge with a single strategy, the result of evaluate_result() is effectively not used and therefore is not needed, so avoid altogether. On Windows, this optimization can halve the time required to perform a recursive merge of a single commit with the LLVM repo. Signed-off-by: Andrew Ng <andrew.ng@sony.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-05-13Merge branch 'ss/submodule-set-url-in-c'Junio C Hamano
Rewriting various parts of "git submodule" in C continues. * ss/submodule-set-url-in-c: submodule: port subcommand 'set-url' from shell to C
2020-05-13Merge branch 'jc/auto-gc-quiet'Junio C Hamano
Teach "am", "commit", "merge" and "rebase", when they are run with the "--quiet" option, to pass "--quiet" down to "gc --auto". * jc/auto-gc-quiet: auto-gc: pass --quiet down from am, commit, merge and rebase auto-gc: extract a reusable helper from "git fetch"
2020-05-13Merge branch 'tb/shallow-cleanup'Junio C Hamano
Code cleanup. * tb/shallow-cleanup: shallow: use struct 'shallow_lock' for additional safety shallow.h: document '{commit,rollback}_shallow_file' shallow: extract a header file for shallow-related functions commit: make 'commit_graft_pos' non-static
2020-05-08Merge branch 'cb/avoid-colliding-with-netbsd-hmac'Junio C Hamano
The <stdlib.h> header on NetBSD brings in its own definition of hmac() function (eek), which conflicts with our own and unrelated function with the same name. Our function has been renamed to work around the issue. * cb/avoid-colliding-with-netbsd-hmac: builtin/receive-pack: avoid generic function name hmac()
2020-05-08Merge branch 'es/restore-staged-from-head-by-default'Junio C Hamano
"git restore --staged --worktree" now defaults to take the contents out of "HEAD", instead of erring out. * es/restore-staged-from-head-by-default: restore: default to HEAD when combining --staged and --worktree
2020-05-08Merge branch 'jk/for-each-ref-multi-key-sort-fix'Junio C Hamano
"git branch" and other "for-each-ref" variants accepted multiple --sort=<key> options in the increasing order of precedence, but it had a few breakages around "--ignore-case" handling, and tie-breaking with the refname, which have been fixed. * jk/for-each-ref-multi-key-sort-fix: ref-filter: apply fallback refname sort only after all user sorts ref-filter: apply --ignore-case to all sorting keys
2020-05-08Merge branch 'dl/switch-c-option-in-error-message'Junio C Hamano
In error messages that "git switch" mentions its option to create a new branch, "-b/-B" options were shown, where "-c/-C" options should be, which has been corrected. * dl/switch-c-option-in-error-message: switch: fix errors and comments related to -c and -C
2020-05-08submodule: port subcommand 'set-url' from shell to CShourya Shukla
Convert submodule subcommand 'set-url' to a builtin. Port 'set-url' to 'submodule--helper.c' and call the latter via 'git-submodule.sh'. Signed-off-by: Shourya Shukla <shouryashukla.oo@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-05-07auto-gc: pass --quiet down from am, commit, merge and rebaseJunio C Hamano
These commands take the --quiet option for their own operation, but they forget to pass the option down when they invoke "git gc --auto" internally. Teach them to do so using the run_auto_gc() helper we added in the previous step. Signed-off-by: Junio C Hamano <gitster@pobox.com> Reviewed-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-05-07auto-gc: extract a reusable helper from "git fetch"Junio C Hamano
Back in 1991006c (fetch: convert argv_gc_auto to struct argv_array, 2014-08-16), we taught "git fetch --quiet" to pass the "--quiet" option down to "gc --auto". This issue, however, is not limited to "fetch": $ git grep -e 'gc.*--auto' \*.c finds hits in "am", "commit", "merge", and "rebase" and these commands do not pass "--quiet" down to "gc --auto" when they themselves are told to be quiet. As a preparatory step, let's introduce a helper function run_auto_gc(), that the caller can pass a boolean "quiet", and redo the fix to "git fetch" using the helper. Signed-off-by: Junio C Hamano <gitster@pobox.com> Reviewed-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-05-05Merge branch 'dl/push-recurse-submodules-fix'Junio C Hamano
Code cleanup. * dl/push-recurse-submodules-fix: push: unset PARSE_OPT_OPTARG for --recurse-submodules
2020-05-05Merge branch 'dl/opt-callback-cleanup'Junio C Hamano
Code cleanup. * dl/opt-callback-cleanup: Use OPT_CALLBACK and OPT_CALLBACK_F
2020-05-05restore: default to HEAD when combining --staged and --worktreeEric Sunshine
By default, files are restored from the index for --worktree, and from HEAD for --staged. When --worktree and --staged are combined, --source must be specified to disambiguate the restore source[1], thus making it cumbersome to restore a file in both the worktree and the index. However, HEAD is also a reasonable default for --worktree when combined with --staged, so make it the default anytime --staged is used (whether combined with --worktree or not). [1]: Due to an oversight, the --source requirement, though documented, is not actually enforced. Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Reviewed-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-05-05builtin/receive-pack: avoid generic function name hmac()Carlo Marcelo Arenas Belón
fabec2c5c3 (builtin/receive-pack: switch to use the_hash_algo, 2019-08-18) renames hmac_sha1 to hmac, as it was updated to use the hash function used by git (which won't be sha1 in the future). hmac() is provided by NetBSD >= 8 libc and therefore conflicts as shown by : builtin/receive-pack.c:421:13: error: conflicting types for 'hmac' static void hmac(unsigned char *out, ^~~~ In file included from ./git-compat-util.h:172:0, from ./builtin.h:4, from builtin/receive-pack.c:1: /usr/include/stdlib.h:305:10: note: previous declaration of 'hmac' was here ssize_t hmac(const char *, const void *, size_t, const void *, size_t, void *, ^~~~ Rename it again to hmac_hash to reflect it will use the git's defined hash function and avoid the conflict, while at it update a comment to better describe the HMAC function that was used. Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-05-04ref-filter: apply --ignore-case to all sorting keysJeff King
All of the ref-filter users (for-each-ref, branch, and tag) take an --ignore-case option which makes filtering and sorting case-insensitive. However, this option was applied only to the first element of the ref_sorting list. So: git for-each-ref --ignore-case --sort=refname would do what you expect, but: git for-each-ref --ignore-case --sort=refname --sort=taggername would sort the primary key (taggername) case-insensitively, but sort the refname case-sensitively. We have two options here: - teach callers to set ignore_case on the whole list - replace the ref_sorting list with a struct that contains both the list of sorting keys, as well as options that apply to _all_ keys I went with the first one here, as it gives more flexibility if we later want to let the users set the flag per-key (presumably through some special syntax when defining the key; for now it's all or nothing through --ignore-case). The new test covers this by sorting on both tagger and subject case-insensitively, which should compare "a" and "A" identically, but still sort them before "b" and "B". We'll break ties by sorting on the refname to give ourselves a stable output (this is actually supposed to be done automatically, but there's another bug which will be fixed in the next commit). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-05-01Merge branch 'js/anonymise-push-url-in-errors'Junio C Hamano
Error and verbose trace messages from "git push" did not redact credential material embedded in URLs. * js/anonymise-push-url-in-errors: push: anonymize URLs in error messages and warnings
2020-05-01Merge branch 'es/bugreport'Junio C Hamano
The "bugreport" tool. * es/bugreport: bugreport: drop extraneous includes bugreport: add compiler info bugreport: add uname info bugreport: gather git version and build info bugreport: add tool to generate debugging info help: move list_config_help to builtin/help
2020-05-01Merge branch 'en/rebase-root-and-fork-point-are-incompatible'Junio C Hamano
Incompatible options "--root" and "--fork-point" of "git rebase" have been marked and documented as being incompatible. * en/rebase-root-and-fork-point-are-incompatible: rebase: display an error if --root and --fork-point are both provided
2020-05-01Merge branch 'ds/blame-on-bloom'Junio C Hamano
"git blame" learns to take advantage of the "changed-paths" Bloom filter stored in the commit-graph file. * ds/blame-on-bloom: test-bloom: check that we have expected arguments test-bloom: fix some whitespace issues blame: drop unused parameter from maybe_changed_path blame: use changed-path Bloom filters tests: write commit-graph with Bloom filters revision: complicated pathspecs disable filters
2020-05-01Merge branch 'gs/commit-graph-path-filter'Junio C Hamano
Introduce an extension to the commit-graph to make it efficient to check for the paths that were modified at each commit using Bloom filters. * gs/commit-graph-path-filter: bloom: ignore renames when computing changed paths commit-graph: add GIT_TEST_COMMIT_GRAPH_CHANGED_PATHS test flag t4216: add end to end tests for git log with Bloom filters revision.c: add trace2 stats around Bloom filter usage revision.c: use Bloom filters to speed up path based revision walks commit-graph: add --changed-paths option to write subcommand commit-graph: reuse existing Bloom filters during write commit-graph: write Bloom filters to commit graph file commit-graph: examine commits by generation number commit-graph: examine changed-path objects in pack order commit-graph: compute Bloom filters for changed paths diff: halt tree-diff early after max_changes bloom.c: core Bloom filter implementation for changed paths. bloom.c: introduce core Bloom filter constructs bloom.c: add the murmur3 hash implementation commit-graph: define and use MAX_NUM_CHUNKS
2020-05-01Merge branch 'tb/commit-graph-split-strategy'Junio C Hamano
"git commit-graph write" learned different ways to write out split files. * tb/commit-graph-split-strategy: Revert "commit-graph.c: introduce '--[no-]check-oids'" commit-graph.c: introduce '--[no-]check-oids' commit-graph.h: replace 'commit_hex' with 'commits' oidset: introduce 'oidset_size' builtin/commit-graph.c: introduce split strategy 'replace' builtin/commit-graph.c: introduce split strategy 'no-merge' builtin/commit-graph.c: support for '--split[=<strategy>]' t/helper/test-read-graph.c: support commit-graph chains
2020-05-01Merge branch 'tb/reset-shallow'Junio C Hamano
Fix in-core inconsistency after fetching into a shallow repository that broke the code to write out commit-graph. * tb/reset-shallow: shallow.c: use '{commit,rollback}_shallow_file' t5537: use test_write_lines and indented heredocs for readability
2020-04-30shallow: use struct 'shallow_lock' for additional safetyTaylor Blau
In previous patches, the functions 'commit_shallow_file' and 'rollback_shallow_file' were introduced to reset the shallowness validity checks on a repository after potentially modifying '.git/shallow'. These functions can be made safer by wrapping the 'struct lockfile *' in a new type, 'shallow_lock', so that they cannot be called with a raw lock (and potentially misused by other code that happens to possess a lockfile, but has nothing to do with shallowness). This patch introduces that type as a thin wrapper around 'struct lockfile', and updates the two aforementioned functions and their callers to use it. Suggested-by: Junio C Hamano <gitster@pobox.com> Helped-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-04-30shallow: extract a header file for shallow-related functionsTaylor Blau
There are many functions in commit.h that are more related to shallow repositories than they are to any sort of generic commit machinery. Likely this began when there were only a few shallow-related functions, and commit.h seemed a reasonable enough place to put them. But, now there are a good number of shallow-related functions, and placing them all in 'commit.h' doesn't make sense. This patch extracts a 'shallow.h', which takes all of the declarations from 'commit.h' for functions which already exist in 'shallow.c'. We will bring the remaining shallow-related functions defined in 'commit.c' in a subsequent patch. For now, move only the ones that already are implemented in 'shallow.c', and update the necessary includes. Signed-off-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-04-30switch: fix errors and comments related to -c and -CDenton Liu
In d787d311db (checkout: split part of it to new command 'switch', 2019-03-29), the `git switch` command was created by extracting the common functionality of cmd_checkout() in checkout_main(). However, in b7b5fce270 (switch: better names for -b and -B, 2019-03-29), the branch creation and force creation options for 'switch' were changed to -c and -C, respectively. As a result of this, error messages and comments that previously referred to `-b` and `-B` became invalid for `git switch`. For error messages that refer to `-b` and `-B`, use a format string instead so that `-c` and `-C` can be printed when `git switch` is invoked. Reported-by: Robert Simpson Signed-off-by: Denton Liu <liu.denton@gmail.com> Reviewed-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-04-29Merge branch 'ps/transactional-update-ref-stdin'Junio C Hamano
"git update-ref --stdin" learned a handful of new verbs to let the user control ref update transactions more explicitly, which helps as an ingredient to implement two-phase commit-style atomic ref-updates across multiple repositories. * ps/transactional-update-ref-stdin: update-ref: implement interactive transaction handling update-ref: read commands in a line-wise fashion update-ref: move transaction handling into `update_refs_stdin()` update-ref: pass end pointer instead of strbuf update-ref: drop unused argument for `parse_refname` update-ref: organize commands in an array strbuf: provide function to append whole lines git-update-ref.txt: add missing word refs: fix segfault when aborting empty transaction
2020-04-29Merge branch 'en/fill-directory-exponential'Junio C Hamano
The directory traversal code had redundant recursive calls which made its performance characteristics exponential with respect to the depth of the tree, which was corrected. * en/fill-directory-exponential: completion: fix 'git add' on paths under an untracked directory Fix error-prone fill_directory() API; make it only return matches dir: replace double pathspec matching with single in treat_directory() dir: include DIR_KEEP_UNTRACKED_CONTENTS handling in treat_directory() dir: replace exponential algorithm with a linear one dir: refactor treat_directory to clarify control flow dir: fix confusion based on variable tense dir: fix broken comment dir: consolidate treat_path() and treat_one_path() dir: fix simple typo in comment t3000: add more testcases testing a variety of ls-files issues t7063: more thorough status checking
2020-04-29Merge branch 'en/sparse-checkout'Junio C Hamano
"sparse-checkout" UI improvements. * en/sparse-checkout: sparse-checkout: provide a new reapply subcommand unpack-trees: failure to set SKIP_WORKTREE bits always just a warning unpack-trees: provide warnings on sparse updates for unmerged paths too unpack-trees: make sparse path messages sound like warnings unpack-trees: split display_error_msgs() into two unpack-trees: rename ERROR_* fields meant for warnings to WARNING_* unpack-trees: move ERROR_WOULD_LOSE_SUBMODULE earlier sparse-checkout: use improved unpack_trees porcelain messages sparse-checkout: use new update_sparsity() function unpack-trees: add a new update_sparsity() function unpack-trees: pull sparse-checkout pattern reading into a new function unpack-trees: do not mark a dirty path with SKIP_WORKTREE unpack-trees: allow check_updates() to work on a different index t1091: make some tests a little more defensive against failures unpack-trees: simplify pattern_list freeing unpack-trees: simplify verify_absent_sparse() unpack-trees: remove unused error type unpack-trees: fix minor typo in comment
2020-04-29Merge branch 'dl/merge-autostash-rebase-quit-fix'Junio C Hamano
The stash entry created by "git rebase --autosquash" to keep the initial dirty state were discarded by mistake upon "git rebase --quit", which has been corrected. * dl/merge-autostash-rebase-quit-fix: rebase: save autostash entry into stash reflog on --quit
2020-04-29Merge branch 'dl/merge-autostash'Junio C Hamano
"git merge" learns the "--autostash" option. * dl/merge-autostash: (22 commits) pull: pass --autostash to merge t5520: make test_pull_autostash() accept expect_parent_num merge: teach --autostash option sequencer: implement apply_autostash_oid() sequencer: implement save_autostash() sequencer: unlink autostash in apply_autostash() sequencer: extract perform_autostash() from rebase rebase: generify create_autostash() rebase: extract create_autostash() reset: extract reset_head() from rebase rebase: generify reset_head() rebase: use apply_autostash() from sequencer.c sequencer: rename stash_sha1 to stash_oid sequencer: make apply_autostash() accept a path rebase: use read_oneliner() sequencer: make read_oneliner() extern sequencer: configurably warn on non-existent files sequencer: make read_oneliner() accept flags sequencer: make file exists check more efficient sequencer: stop leaking buf ...
2020-04-29Revert "commit-graph.c: introduce '--[no-]check-oids'"Junio C Hamano
This reverts commit 7a9ce0269bc0f4ef230f930b3910b70ac3142552, which has not yet gained consensus.
2020-04-28Merge branch 'mt/grep-cquote-path'Junio C Hamano
"git grep" did not quote a path with unusual character like other commands (like "git diff", "git status") do, but did quote when run from a subdirectory, both of which has been corrected. * mt/grep-cquote-path: grep: follow conventions for printing paths w/ unusual chars
2020-04-28Merge branch 'ds/log-exclude-decoration-config'Junio C Hamano
The "--decorate-refs" and "--decorate-refs-exclude" options "git log" takes have learned a companion configuration variable log.excludeDecoration that sits at the lowest priority in the family. * ds/log-exclude-decoration-config: log: add log.excludeDecoration config option log-tree: make ref_filter_match() a helper method
2020-04-28Merge branch 'tb/diff-tree-with-notes'Junio C Hamano
"git diff-tree --pretty --notes" used to hit an assertion failure, as it forgot to initialize the notes subsystem. * tb/diff-tree-with-notes: diff-tree.c: load notes machinery when required
2020-04-28Merge branch 'js/stash-p-fix'Junio C Hamano
Allowing the user to split a patch hunk while "git stash -p" does not work well; a band-aid has been added to make this (partially) work better. * js/stash-p-fix: stash -p: (partially) fix bug concerning split hunks t3904: fix incorrect demonstration of a bug
2020-04-28Merge branch 'dl/libify-a-few'Junio C Hamano
Code in builtin/*, i.e. those can only be called from within built-in subcommands, that implements bulk of a couple of subcommands have been moved to libgit.a so that they could be used by others. * dl/libify-a-few: Lib-ify prune-packed Lib-ify fmt-merge-msg
2020-04-28Merge branch 'jt/avoid-prefetch-when-able-in-diff'Junio C Hamano
"git diff" in a partial clone learned to avoid lazy loading blob objects in more casese when they are not needed. * jt/avoid-prefetch-when-able-in-diff: diff: restrict when prefetching occurs diff: refactor object read diff: make diff_populate_filespec_options struct promisor-remote: accept 0 as oid_nr in function
2020-04-28Merge branch 'ds/commit-graph-expiry-fix'Junio C Hamano
"git commit-graph write --expire-time=<timestamp>" did not use the given timestamp correctly, which has been corrected. * ds/commit-graph-expiry-fix: commit-graph: fix buggy --expire-time option
2020-04-28Merge branch 'jc/log-no-mailmap'Junio C Hamano
"git log" learns "--[no-]mailmap" as a synonym to "--[no-]use-mailmap" * jc/log-no-mailmap: log: give --[no-]use-mailmap a more sensible synonym --[no-]mailmap clone: reorder --recursive/--recurse-submodules parse-options: teach "git cmd -h" to show alias as alias
2020-04-28Merge branch 'jk/config-use-size-t'Junio C Hamano
The config API made mixed uses of int and size_t types to represent length of various pieces of text it parsed, which has been updated to use the correct type (i.e. size_t) throughout. * jk/config-use-size-t: config: reject parsing of files over INT_MAX config: use size_t to store parsed variable baselen git_config_parse_key(): return baselen as size_t config: drop useless length variable in write_pair() parse_config_key(): return subsection len as size_t remote: drop auto-strlen behavior of make_branch() and make_rewrite()
2020-04-28Merge branch 'bc/constant-memequal'Junio C Hamano
Validation of push certificate has been made more robust against timing attacks. * bc/constant-memequal: receive-pack: compilation fix builtin/receive-pack: use constant-time comparison for HMAC value
2020-04-28push: anonymize URLs in error messages and warningsJohannes Schindelin
Just like 47abd85ba0 (fetch: Strip usernames from url's before storing them, 2009-04-17) and later 882d49ca5c (push: anonymize URL in status output, 2016-07-13), and even later c1284b21f243 (curl: anonymize URLs in error messages and warnings, 2019-03-04) this change anonymizes URLs (read: strips them of user names and especially passwords) in user-facing error messages and warnings. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Reviewed-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-04-28rebase: save autostash entry into stash reflog on --quitDenton Liu
In a03b55530a (merge: teach --autostash option, 2020-04-07), the --autostash option was introduced for `git merge`. Notably, when `git merge --quit` is run with an autostash entry present, it is saved into the stash reflog. This is contrasted with the current behaviour of `git rebase --quit` where the autostash entry is simply just dropped out of existence. Adopt the behaviour of `git merge --quit` in `git rebase --quit` and save the autostash entry into the stash reflog instead of just deleting it. Signed-off-by: Denton Liu <liu.denton@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-04-28push: unset PARSE_OPT_OPTARG for --recurse-submodulesDenton Liu
When the usage for `git push` is shown, it includes the following lines --recurse-submodules[=(check|on-demand|no)] control recursive pushing of submodules which seem to indicate that the argument for --recurse-submodules is optional. However, we cannot actually run that optiion without an argument: $ git push --recurse-submodules fatal: recurse-submodules missing parameter Unset PARSE_OPT_OPTARG so that it is clear that this option requires an argument. Since the parse-options machinery guarantees that an argument is present now, assume that `arg` is set in the else of option_parse_recurse_submodules(). Reported-by: Andrew White <andrew.white@audinate.com> Signed-off-by: Denton Liu <liu.denton@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>