"git push" over smart-http lost progress output a few releases ago.
By Jeff King
* jk/maint-push-progress:
t5541: test more combinations of --progress
teach send-pack about --[no-]progress
send-pack: show progress when isatty(2)
"log --graph" was not very friendly with "--stat" option and its output
had line breaks at wrong places.
By Lucian Poston (5) and Zbigniew Jędrzejewski-Szmek (3)
* lp/diffstat-with-graph:
t4052: work around shells unable to set COLUMNS to 1
test-lib: skip test with COLUMNS=1 under mksh
Prevent graph_width of stat width from falling below min
t4052: Test diff-stat output with minimum columns
t4052: Adjust --graph --stat output for prefixes
Adjust stat width calculations to take --graph output into account
Add output_prefix_length to diff_options
t4052: test --stat output with --graph
Merge branch 'jk/maint-gitweb-test-use-sane-perl' into maint
When using a Perl script on a system where "perl" found on user's $PATH
could be ancient or otherwise broken, we allow builders to specify the
path to a good copy of Perl with $PERL_PATH. The gitweb test forgot to
use that Perl when running its test.
By Jeff King (1) and Zbigniew Jędrzejewski-Szmek (1)
* jk/maint-gitweb-test-use-sane-perl:
Consistently use perl from /usr/bin/ for scripts
t/gitweb-lib: use $PERL_PATH to run gitweb
Merge branch 'rt/cherry-revert-conflict-summary' into maint
In the older days, the header "Conflicts:" in "cherry-pick" and "merge"
was separated by a blank line from the list of paths that follow for
readability, but when "merge" was rewritten in C, we lost it by
mistake. Remove the newline from "cherry-pick" to make them match again.
By Ralf Thielow
* rt/cherry-revert-conflict-summary:
sequencer: remove additional blank line
Merge branch 'jc/merge-reduce-parents-early' into maint
Octopus merge strategy did not reduce heads that are recorded in the final
commit correctly.
By Junio C Hamano (4) and Michał Kiedrowicz (1)
* jc/merge-reduce-parents-early:
fmt-merge-msg: discard needless merge parents
builtin/merge.c: reduce parents early
builtin/merge.c: collect other parents early
builtin/merge.c: remove "remoteheads" global variable
merge tests: octopus with redundant parents
Merge branch 'cb/cherry-pick-rev-path-confusion' into maint
The command line parser choked "git cherry-pick $name" when $name can be
both revision name and a pathname, even though $name can never be a path
in the context of the command.
By Clemens Buchacher
* cb/cherry-pick-rev-path-confusion:
cherry-pick: do not expect file arguments
HTTP transport that requires authentication did not work correctly when
multiple connections are used simultaneously.
By Jeff King (3) and Clemens Buchacher (1)
* cb/http-multi-curl-auth:
http: use newer curl options for setting credentials
http: clean up leak in init_curl_http_auth
fix http auth with multiple curl handles
http auth fails with multiple curl handles
Merge branch 'mb/fetch-call-a-non-branch-a-ref' into maint
The report from "git fetch" said "new branch" even for a non branch ref.
By Marc Branchaud
* mb/fetch-call-a-non-branch-a-ref:
fetch: describe new refs based on where it came from
fetch: Give remote_ref to update_local_ref() as well
Merge branch 'jm/maint-strncpy-diff-no-index' into maint
"diff --no-index" codepath had a few places that used fixed-size
buffer and truncated paths that are too long.
By Jim Meyering (1) and Junio C Hamano (1)
* jm/maint-strncpy-diff-no-index:
diff --no-index: use strbuf for temporary pathnames
diff: avoid stack-buffer-read-overrun for very long name
When "git fetch" encounters repositories with too many references, the
command line of "fetch-pack" that is run by a helper e.g. remote-curl, may
fail to hold all of them. Now such an internal invocation can feed the
references through the standard input of "fetch-pack".
By Ivan Todoroski
* it/fetch-pack-many-refs:
remote-curl: main test case for the OS command line overflow
fetch-pack: test cases for the new --stdin option
remote-curl: send the refs to fetch-pack on stdin
fetch-pack: new --stdin option to read refs from stdin
Merge branch 'jl/maint-submodule-recurse-fetch' into maint
"git fetch" that recurses into submodules on demand did not check if it
needs to go into submodules when non branches (most notably, tags) are
fetched.
By Jens Lehmann
* jl/maint-submodule-recurse-fetch:
submodules: recursive fetch also checks new tags for submodule commits
Merge branch 'lp/maint-diff-three-dash-with-graph' into maint
"log -p --graph" used with "--stat" had a few formatting error.
By Lucian Poston
* lp/maint-diff-three-dash-with-graph:
t4202: add test for "log --graph --stat -p" separator lines
log --graph: fix break in graph lines
log --graph --stat: three-dash separator should come after graph lines
Merge branch 'maint' of https://github.com/git-l10n/git-po
By Byrial Jensen (2) and others
via Jiang Xin (1) and Ralf Thielow (1)
* 'maint' of https://github.com/git-l10n/git-po:
l10n: Initial German translation
l10n: Update Simplified Chinese translation
l10n: Update git.pot (2 new messages)
l10n: Add the German translation team and initialize de.po
l10n: Add Danish team (da) to list of teams
l10n: New da.po file with 0 translations
l10n: Updated pt_PT language
While the majority of scripts use '#!/usr/bin/perl', some use
'#!/usr/bin/env perl'. In the end there is no difference, because the
Makefile rewrites "#!.*perl" with "#!$PERL_PATH" in scripted
Porcelains before installing. Nevertheless, the second form can be
misleading, because it suggests that perl found first in $PATH will be
used.
Suggested-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> Signed-off-by: Junio C Hamano <gitster@pobox.com>
The current code runs "perl gitweb.cgi" to test gitweb. This
will use whatever version of perl happens to be first in the
PATH. We are better off using the specific perl that the
user specified via PERL_PATH, which matches what gets put on
the #!-line of the built gitweb.cgi.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Previously, we tested only that "push --quiet --no-progress"
was silent. However, there are many other combinations that
were not tested:
1. no options at all (but stderr as a tty)
2. --no-progress by itself
3. --quiet by itself
4. --progress (when stderr not a tty)
These are tested elsewhere for general "push", but it is
important to test them separately for http. It follows a
very different code path than git://, and options must be
relayed across a remote helper to a separate send-pack
process (and in fact cases (1), (2), and (4) have all been
broken just for http at some point in the past).
We can drop the "--quiet --no-progress" test, as it is not
really interesting (it is already handled by testing them
separately in (2) and (3) above).
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
The send_pack function gets a "progress" flag saying "yes,
definitely show progress" or "no, definitely do not show
progress". This gets set properly by transport_push when
send_pack is called directly.
However, when the send-pack command is executed separately
(as it is for the remote-curl helper), there is no way to
tell it "definitely do this". As a result, we do not
properly respect "git push --no-progress" for smart-http
remotes; you will still get progress if stderr is a tty.
This patch teaches send-pack --progress and --no-progress,
and teaches remote-curl to pass the appropriate option to
override send-pack's isatty check. This fixes the
--no-progress case above, and as a bonus, also makes "git
push --progress" work when stderr is not a tty.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
The send_pack_args struct has two verbosity flags: "quiet"
and "progress". Originally, if "quiet" was set, we would
tell pack-objects explicitly to be quiet, and if "progress"
was set, we would tell it to show progress. Otherwise, we
told it neither, and it relied on isatty(2) to make the
decision itself.
However, commit 01fdc21 changed the meaning of these
variables. Now both "quiet" and "!progress" instruct us to
tell pack-objects to be quiet (and a non-zero "progress"
means the same as before). This works well for transports
which call send_pack directly, as the transport code copies
transport->progress into send_pack_args->progress, and they
both have the same meaning.
However, the code path of calling "git send-pack" was left
behind. It always sets "progress" to 0, and thus always
tells pack-objects to be quiet. We can work around this by
checking isatty(2) ourselves in the cmd_send_pack code path,
restoring the original behavior of the send-pack command.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Instead of sourcing git-sh-setup from random place that is on the $PATH,
explicitly source $(git --exec-path)/git-sh-setup. As I do not personally
have any libexec/git-core directory on my $PATH like many other people, the
script will fail without this update.
You can already use relative paths in include.path, which
means that including "foo" from your global "~/.gitconfig"
will look in your home directory. However, you might want to
do something clever like putting "~/.gitconfig-foo" in a
specific repository's config file.
Signed-off-by: Jeff King <peff@peff.net> Acked-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
mksh does not allow $COLUMNS to be set below 12. mksh(1) says that
$COLUMNS is "always set, defaults to 80, unless the value as reported
by stty(1) is non-zero and sane enough". This applies also to setting
it directly for one command:
t5570: fix forwarding of git-daemon messages via cat
The shell function that starts git-daemon wants to read the first line of
the daemon's stderr to ensure that it started correctly. Subsequent daemon
errors should be redirected to fd 4 (which is the terminal in verbose mode
or /dev/null in quiet mode). To that end the shell script used 'read' to
get the first line of output, and then 'cat &' to forward everything else
in a background process.
The problem is, that 'cat >&4 &' does not produce any output because the
shell redirects a background process's stdin to /dev/null. To have this
command invocation do anything useful, we have to redirect its stdin
explicitly (which overrides the /dev/null redirection).
The shell function connects the daemon's stderr to its consumers via a
FIFO. We cannot just do this:
read line <git_daemon_output
cat <git_daemon_output >&4 &
because after the first redirection the pipe is closed and the daemon
could receive SIGPIPE if it writes at the wrong moment. Therefore, we open
the readable end of the FIFO only once on fd 7 in the shell and dup from
there to the stdin of the two consumers.
Signed-off-by: Johannes Sixt <j6t@kdbg.org> Acked-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
When PATH contains an unreadable directory, alias expansion code did
not kick in, and failed with an error that said "git-subcmd" was not
found.
By Jeff King (1) and Ramsay Jones (1)
* jk/run-command-eacces:
run-command: treat inaccessible directories as ENOENT
compat/mingw.[ch]: Change return type of exec functions to int
The 'push to upstream' implementation was broken in some corner
cases. "git push $there" without refspec, when the current branch is
set to push to a remote different from $there, used to push to $there
using the upstream information to a remote unreleated to $there.
* jc/push-upstream-sanity:
push: error out when the "upstream" semantics does not make sense
Merge branch 'jc/maint-clean-nested-worktree-in-subdir' into maint
"git clean -d -f" (not "-d -f -f") is supposed to protect nested
working trees of independent git repositories that exist in the
current project working tree from getting removed, but the protection
applied only to such working trees that are at the top-level of the
current project by mistake.
* jc/maint-clean-nested-worktree-in-subdir:
clean: preserve nested git worktree in subdirectories
Rename detection logic used to match two empty files as renames during
merge-recursive, leading unnatural mismerges.
By Jeff King
* jk/diff-no-rename-empty:
merge-recursive: don't detect renames of empty files
teach diffcore-rename to optionally ignore empty content
make is_empty_blob_sha1 available everywhere
drop casts from users EMPTY_TREE_SHA1_BIN
Merge branch 'jc/commit-unedited-template' into maint
When "git commit --template F" errors out because the user did not
touch the message, it claimed that it aborts due to "empty message",
which was utterly wrong.
By Junio C Hamano (4) and Adam Monsen (1)
* jc/commit-unedited-template:
Documentation/git-commit: rephrase the "initial-ness" of templates
git-commit.txt: clarify -t requires editing message
commit: rephrase the error when user did not touch templated log message
commit: do not trigger bogus "has templated message edited" check
t7501: test the right kind of breakage
Merge branch 'jc/commit-hook-authorship' into maint
"git commit --author=$name" did not tell the name that was being
recorded in the resulting commit to hooks, even though it does do so
when the end user overrode the authorship via the "GIT_AUTHOR_NAME"
environment variable.
* jc/commit-hook-authorship:
commit: pass author/committer info to hooks
t7503: does pre-commit-hook learn authorship?
ident.c: add split_ident_line() to parse formatted ident line
Merge branch 'tr/maint-word-diff-regex-sticky' into maint
The regexp configured with diff.wordregex was incorrectly reused
across files.
By Thomas Rast (2) and Johannes Sixt (1)
* tr/maint-word-diff-regex-sticky:
diff: tweak a _copy_ of diff_options with word-diff
diff: refactor the word-diff setup from builtin_diff_cmd
t4034: diff.*.wordregex should not be "sticky" in --word-diff
Merge branch 'jh/notes-merge-in-git-dir-worktree' into maint
Running "notes merge --commit" failed to perform correctly when run
from any directory inside $GIT_DIR/. When "notes merge" stops with
conflicts, $GIT_DIR/NOTES_MERGE_WORKTREE is the place a user edits
to resolve it.
By Johan Herland (3) and Junio C Hamano (1)
* jh/notes-merge-in-git-dir-worktree:
notes-merge: Don't remove .git/NOTES_MERGE_WORKTREE; it may be the user's cwd
notes-merge: use opendir/readdir instead of using read_directory()
t3310: illustrate failure to "notes merge --commit" inside $GIT_DIR/
remove_dir_recursively(): Add flag for skipping removal of toplevel dir
bundle: remove stray single-quote from error message
After running rev-list --boundary to retrieve the list of boundary
commits, "git bundle create" runs its own revision walk. If in this
stage git encounters an unfamiliar option, it writes a message with an
unbalanced quotation mark:
error: unrecognized argument: --foo'
Drop the stray quote to match the "unrecognized argument: %s" message
used elsewhere and save translators some work.
This is mostly a futureproofing measure: for now, the "rev-list
--boundary" command catches most strange arguments on its own and the
above message is not seen unless you try something esoteric like "git
bundle create test.bundle --header HEAD".
Reported-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
config: reject bogus section names for --rename-section
You can feed junk to "git config --rename-section", which
will result in a config file that git will not even parse
(so you cannot fix it with git-config). We already have
syntactic sanity checks when setting a variable; let's do
the same for section names.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
git-remote-testgit: fix race when spawning fast-import
Test "pushing to local repo" in t5800-remote-helpers can hang
due to a race condition in git-remote-testgit. Fix it by
setting stdin to unbuffered.
On the writer side, "git push" invokes push_refs_with_export(),
which sends to stdout the command "export\n" and immediately
starts up "git fast-export". The latter writes its output stream
to the same stdout.
On the reader side, remote helper "git-remote-testgit" reads from
stdin to get its next command. It uses getc() to read characters
from libc up until \n. Libc has buffered a potentially much
larger chunk of stdin. When it sees the "export\n" command, it
forks "git fast-import" to read the stream.
If fast-export finishes before git fast-import starts, the
fast-export output can end up in libc's buffer in
git-remote-testgit, rather than in git fast-import. The latter
hangs indefinitely on a now-empty stdin.
Signed-off-by: Pete Wyckoff <pw@padd.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
This is used by "git pull" to construct a merge message from list of
remote refs. When pulling redundant set of refs, however, it did not
filter them even though the merge itself discards them as unnecessary.
When COLUMNS or --stat-width restricts the diff-stat width to near the
minimum, 26 columns, the graph_width value becomes negative. Consequently, the
graph part of diff-stat is not resized properly.
Signed-off-by: Lucian Poston <lucian.poston@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Instead of waiting until we record the parents of resulting merge, reduce
redundant parents (including our HEAD) immediately after reading them.
The change to t7602 illustrates the essence of the effect of this change.
The octopus merge strategy used to be fed with redundant commits only to
discard them as "up-to-date", but we no longer feed such redundant commits
to it and the affected test degenerates to a regular two-head merge.
And obviously the known-to-be-broken test in t6028 is now fixed.
This happens when git merge is run to merge multiple commits that are
descendants of current HEAD (or are HEAD). We've hit this while updating
master to origin/master but accidentaly we called (while being on master):
$ git merge master origin/master
Here is a minimal testcase:
$ git init a && cd a
$ echo a >a && git add a
$ git commit -minitial
$ echo b >a && git add a
$ git commit -msecond
$ git checkout master^
$ git merge master master
Fast-forwarding to: master
Already up-to-date with master
Merge made by the 'octopus' strategy.
a | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
fetch: describe new refs based on where it came from
update_local_ref() used to say "[new branch]" when we stored a new ref
outside refs/tags/ hierarchy, but the message is more about what we
fetched, so use the refname at the origin to make that decision.
Also, only call a new ref a "branch" if it's under refs/heads/.
Signed-off-by: Marc Branchaud <marcnarc@xiplink.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Adjust stat width calculations to take --graph output into account
The recent change to compute the width of diff --stat did not take into
consideration the output from --graph. The consequence is that when both
options are used, e.g. in 'log --stat --graph', the lines are too long.
Adjust stat width calculations to take --graph output into account.
Signed-off-by: Lucian Poston <lucian.poston@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Add tests which show that the width of the --prefix added by --graph
is not taken into consideration when the diff stat output width is
calculated.
Signed-off-by: Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> Signed-off-by: Lucian Poston <lucian.poston@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff: avoid stack-buffer-read-overrun for very long name
Due to the use of strncpy without explicit NUL termination,
we could end up passing names n1 or n2 that are not NUL-terminated
to queue_diff, which requires NUL-terminated strings.
Ensure that each is NUL terminated.
Signed-off-by: Jim Meyering <meyering@redhat.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
If a commit-ish passed to cherry-pick or revert happens to have a file
of the same name, git complains that the argument is ambiguous and
advises to use '--'. To make things worse, the '--' argument is removed
by parse_options, und so passing '--' has no effect.
Instead, always interpret cherry-pick/revert arguments as revisions.
Signed-off-by: Clemens Buchacher <drizzd@aon.at> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Various failure modes in the repository detection code path currently
quote the wrong directory in their error message. The working directory
is changed iteratively to the parent directory until a git repository is
found. If the working directory cannot be changed to the parent
directory for some reason, the detection gives up and prints an error
message. The error message should report the current working directory.
Instead of continually updating the 'cwd' variable, which is actually
used to remember the original working directory, the 'offset' variable
is used to keep track of the current working directory. At the point
where the affected error handling code is called, 'offset' already
points to the end of the parent of the working directory, rather than
the current working directory.
Fix this by explicitly using a variable 'offset_parent' and update
'offset' concurrently with the call to chdir.
In a similar fashion, the function get_device_or_die() would print the
original working directory in case of a failure, rather than the current
working directory. Fix this as well by making use of the 'offset'
variable.
Lastly, replace the phrase 'mount parent' with 'mount point'. The former
appears to be a typo.
Signed-off-by: Clemens Buchacher <drizzd@aon.at> Signed-off-by: Junio C Hamano <gitster@pobox.com>
submodules: recursive fetch also checks new tags for submodule commits
Since 88a21979c (fetch/pull: recurse into submodules when necessary) all
fetched commits are examined if they contain submodule changes (unless
configuration or command line options inhibit that). If a newly recorded
submodule commit is not present in the submodule, a fetch is run inside
it to download that commit.
Checking new refs was done in an else branch where it wasn't executed for
tags. This normally isn't a problem because tags are only fetched with
the branches they live on, then checking the new commits in the fetched
branches for submodule commits will also process all tags. But when a
specific tag is fetched (or the refspec contains refs/tags/) commits only
reachable by tags won't be searched for submodule commits, which is a bug.
Fix that by moving the code outside the if/else construct to handle new
tags just like any other ref. The performance impact of adding tags that
most of the time lie on a branch which is checked anyway for new submodule
commit should be minimal, as since 6859de4 (fetch: avoid quadratic loop
checking for updated submodules) all ref-tips are collected first and then
fed to a single rev-list.
Spotted-by: Jeff King <peff@peff.net> Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
http: use newer curl options for setting credentials
We give the username and password to curl by sticking them
in a buffer of the form "user:pass" and handing the result
to CURLOPT_USERPWD. Since curl 7.19.1, there is a split
mechanism, where you can specify each element individually.
This has the advantage that a username can contain a ":"
character. It also is less code for us, since we can hand
our strings over to curl directly. And since curl 7.17.0 and
higher promise to copy the strings for us, we we don't even
have to worry about memory ownership issues.
Unfortunately, we have to keep the ugly code for old curl
around, but as it is now nicely #if'd out, we can easily get
rid of it when we decide that 7.19.1 is "old enough".
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
When we have a credential to give to curl, we must copy it
into a "user:pass" buffer and then hand the buffer to curl.
Old versions of curl did not copy the buffer, and we were
expected to keep it valid. Newer versions of curl will copy
the buffer.
Our solution was to use a strbuf and detach it, giving
ownership of the resulting buffer to curl. However, this
meant that we were leaking the buffer on newer versions of
curl, since curl was just copying it and throwing away the
string we passed. Furthermore, when we replaced a
credential (e.g., because our original one was rejected), we
were also leaking on both old and new versions of curl.
This got even worse in the last patch, which started
replacing the credential (and thus leaking) on every http
request.
Instead, let's use a static buffer to make the ownership
more clear and less leaky. We already keep a static "struct
credential", so we are only handling a single credential at
a time, anyway.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
remote-curl: main test case for the OS command line overflow
This is main test case for the original problem that triggered this
patch series. We create a repo with 50k tags and then test whether
git-clone over the smart HTTP protocol succeeds.
Note that we construct the repo in a slightly different way than the
original script used to reproduce the problem. This is because the
original script just created 50k tags all pointing to the same commit,
so if there was a bug where remote-curl.c was not passing all the refs
to fetch-pack we wouldn't know. The clone would succeed even if only one
tag was passed, because all the other tags were pointing at the same SHA
and would be considered present.
Instead we create a repo with 50k independent (dangling) commits and
then tag each of those commits with a unique tag. This way if one of the
tags is not given to fetch-pack, later stages of the clone would
complain about it.
This allows us to test both that the command line overflow was fixed, as
well as that it was fixed in a way that doesn't leave out any of the
refs.
Signed-off-by: Ivan Todoroski <grnch@gmx.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
These test cases focus only on testing the parsing of refs on stdin,
without bothering with the rest of the fetch-pack machinery. We pass in
the refs using different combinations of command line and stdin and then
we watch fetch-pack's stdout to see whether it prints all the refs we
specified (but we ignore their order).
Signed-off-by: Ivan Todoroski <grnch@gmx.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Now that we can throw an arbitrary number of refs at fetch-pack using
its --stdin option, we use it in the remote-curl helper to bypass the
OS command line length limit.
Signed-off-by: Ivan Todoroski <grnch@gmx.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
The syntax for the use of mark references in fast-import
demands either a SP (space) or LF (end-of-line) after
a mark reference. Fast-import does not complain when garbage
appears after a mark reference in some cases.
Factor out parsing of mark references and complain if
errant characters are found. Also be a little more careful
when parsing "inline" and SHA1s, complaining if extra
characters appear or if the form of the dataref is unrecognized.
Buggy input can cause fast-import to produce the wrong output,
silently, without error. This makes it difficult to track
down buggy generators of fast-import streams. An example is
seen in the last line of this commit command:
commit refs/heads/S2
committer Name <name@example.com> 1112912893 -0400
data <<COMMIT
commit message
COMMIT
from :1M 100644 :103 hello.c
It is missing a newline and should be:
[...]
from :1
M 100644 :103 hello.c
What fast-import does is to produce a commit with the same
contents for hello.c as in refs/heads/S2^. What the buggy
program was expecting was the contents of blob :103. While
the resulting commit graph looked correct, the contents in
some commits were wrong.
Signed-off-by: Pete Wyckoff <pw@padd.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>