| Commit message (Collapse) | Author | Age |
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In ba227857(Reduce the number of connects when fetching), we checked
the return value of git_connect() to see if the connection was
successful.
However, for the git:// protocol, there is no need to have another
process, so the return value was NULL.
Now, it makes sense to assume the rule that git_connect() will return
NULL if it fails (at the moment, it die()s if it fails), so return
a dummy child process.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Acked-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This shares the connection between getting the remote ref list and
getting objects in the first batch. (A second connection is still used
to follow tags).
When we do not fetch objects (i.e. either ls-remote disconnects after
getting list of refs, or we decide we are already up-to-date), we
clean up the connection properly; otherwise the connection is left
open in need of cleaning up to avoid getting an error message from
the remote end when ssh is used.
Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* mw/send-email:
git-send-email: Better handling of EOF
git-send-email: SIG{TERM,INT} handlers
git-send-email: ssh/login style password requests
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Before, when the user sent the EOF control character, the
prompts would be repeated on the same line as the previous
prompt.
Now, repeat prompts display on separate lines.
Signed-off-by: Michael Witten <mfwitten@mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A single signal handler is used for both SIGTERM and
SIGINT in order to clean up after an uncouth termination
of git-send-email.
In particular, the handler resets the text color (this cleanup
was already present), turns on tty echoing (in case termination
occurrs during a masked Password prompt), and informs the user
of of any temporary files created by --compose.
Signed-off-by: Michael Witten <mfwitten@mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Whilst convenient, it is most unwise to record passwords
in any place but one's brain. Moreover, it is especially
foolish to store them in configuration files, even with
access permissions set accordingly.
git-send-email has been amended, so that if it detects
an smtp username without a password, it promptly prompts
for the password and masks the input for privacy.
Furthermore, the argument to --smtp-pass has been rendered
optional.
The documentation has been updated to reflect these changes.
Signed-off-by: Michael Witten <mfwitten@mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* db/send-email-omit-cc:
git-send-email: Generalize auto-cc recipient mechanism.
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There are a few options to git-send-email to suppress the automatic
generation of 'Cc' fields: --suppress-from, and --signed-off-cc.
However, there are other times that git-send-email automatically
includes Cc'd recipients. This is not desirable for all development
environments.
Add a new option --suppress-cc, which can be specified one or more
times to list the categories of auto-cc fields that should be
suppressed. If not specified, it defaults to values to give the same
behavior as specified by --suppress-from, and --signed-off-cc. The
categories are:
self - patch sender. Same as --suppress-from.
author - patch author.
cc - cc lines mentioned in the patch.
cccmd - avoid running the cccmd.
sob - signed off by lines.
all - all non-explicit recipients
Signed-off-by: David Brown <git@davidb.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* jc/error-message-in-cherry-pick:
Make error messages from cherry-pick/revert more sensible
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The original "rewrite in C" did somewhat a sloppy job while
stealing code from git-write-tree.
The caller pretends as if the write_tree() function would return
an error code and being able to issue a sensible error message
itself, but write_tree() function just calls die() and never
returns an error. Worse yet, the function claims that it was
running git-write-tree (which is no longer true after
cherry-pick stole it).
Tested-by: Björn Steinbrink <B.Steinbrink@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* lt/in-core-index:
lazy index hashing
Create pathname-based hash-table lookup into index
read-cache.c: introduce is_racy_timestamp() helper
read-cache.c: fix a couple more CE_REMOVE conversion
Also use unpack_trees() in do_diff_cache()
Make run_diff_index() use unpack_trees(), not read_tree()
Avoid running lstat(2) on the same cache entry.
index: be careful when handling long names
Make on-disk index representation separate from in-core one
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This delays the hashing of index names until it becomes necessary for
the first time.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This creates a hash index of every single file added to the index.
Right now that hash index isn't actually used for much: I implemented a
"cache_name_exists()" function that uses it to efficiently look up a
filename in the index without having to do the O(logn) binary search,
but quite frankly, that's not why this patch is interesting.
No, the whole and only reason to create the hash of the filenames in the
index is that by modifying the hash function, you can fairly easily do
things like making it always hash equivalent names into the same bucket.
That, in turn, means that suddenly questions like "does this name exist
in the index under an _equivalent_ name?" becomes much much cheaper.
Guiding principles behind this patch:
- it shouldn't be too costly. In fact, my primary goal here was to
actually speed up "git commit" with a fully populated kernel tree, by
being faster at checking whether a file already existed in the index. I
did succeed, but only barely:
Best before:
[torvalds@woody linux]$ time git commit > /dev/null
real 0m0.255s
user 0m0.168s
sys 0m0.088s
Best after:
[torvalds@woody linux]$ time ~/git/git commit > /dev/null
real 0m0.233s
user 0m0.144s
sys 0m0.088s
so some things are actually faster (~8%).
Caveat: that's really the best case. Other things are invariably going
to be slightly slower, since we populate that index cache, and quite
frankly, few things really use it to look things up.
That said, the cost is really quite small. The worst case is probably
doing a "git ls-files", which will do very little except puopulate the
index, and never actually looks anything up in it, just lists it.
Before:
[torvalds@woody linux]$ time git ls-files > /dev/null
real 0m0.016s
user 0m0.016s
sys 0m0.000s
After:
[torvalds@woody linux]$ time ~/git/git ls-files > /dev/null
real 0m0.021s
user 0m0.012s
sys 0m0.008s
and while the thing has really gotten relatively much slower, we're
still talking about something almost unmeasurable (eg 5ms). And that
really should be pretty much the worst case.
So we lose 5ms on one "benchmark", but win 22ms on another. Pick your
poison - this patch has the advantage that it will _likely_ speed up
the cases that are complex and expensive more than it slows down the
cases that are already so fast that nobody cares. But if you look at
relative speedups/slowdowns, it doesn't look so good.
- It should be simple and clean
The code may be a bit subtle (the reasons I do hash removal the way I
do etc), but it re-uses the existing hash.c files, so it really is
fairly small and straightforward apart from a few odd details.
Now, this patch on its own doesn't really do much, but I think it's worth
looking at, if only because if done correctly, the name hashing really can
make an improvement to the whole issue of "do we have a filename that
looks like this in the index already". And at least it gets real testing
by being used even by default (ie there is a real use-case for it even
without any insane filesystems).
NOTE NOTE NOTE! The current hash is a joke. I'm ashamed of it, I'm just
not ashamed of it enough to really care. I took all the numbers out of my
nether regions - I'm sure it's good enough that it works in practice, but
the whole point was that you can make a really much fancier hash that
hashes characters not directly, but by their upper-case value or something
like that, and thus you get a case-insensitive hash, while still keeping
the name and the index itself totally case sensitive.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This moves a common boolean expression into a helper function,
and makes the comparison between filesystem timestamp and index
timestamp done in the function in line with the other places.
st.st_mtime should be casted to (unsigned int) when compared to
an index timestamp ce_mtime.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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It is a D/F conflict if you want to add "foo/bar" to the index
when "foo" already exists. Also it is a conflict if you want to
add a file "foo" when "foo/bar" exists.
An exception is when the existing entry is there only to mark "I
used to be here but I am being removed". This is needed for
operations such as "git read-tree -m -u" that update the index
and then reflect the result to the work tree --- we need to
remember what to remove somewhere, and we use the index for
that. In such a case, an existing file "foo" is being removed
and we can create "foo/" directory and hang "bar" underneath it
without any conflict.
We used to use (ce->ce_mode == 0) to mark an entry that is being
removed, but (CE_REMOVE & ce->ce_flags) is used for that purpose
these days. An earlier commit forgot to convert the logic in
the code that checks D/F conflict condition.
The old code knew that "to be removed" entries cannot be at
higher stage and actively checked that condition, but it was an
unnecessary check. This patch removes the extra check as well.
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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As in run_diff_index(), we call unpack_trees() with the oneway_diff()
function in do_diff_cache() now. This makes the function diff_cache()
obsolete.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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A plain "git commit" would still run lstat() a lot more than necessary,
because wt_status_print() would cause the index to be repeatedly flushed
and re-read by wt_read_cache(), and that would cause the CE_UPTODATE bit
to be lost, resulting in the files in the index being lstat'ed three
times each.
The reason why wt-status.c ended up invalidating and re-reading the
cache multiple times was that it uses "run_diff_index()", which in turn
uses "read_tree()" to populate the index with *both* the old index and
the tree we want to compare against.
So this patch re-writes run_diff_index() to not use read_tree(), but
instead use "unpack_trees()" to diff the index to a tree. That, in
turn, means that we don't need to modify the index itself, which then
means that we don't need to invalidate it and re-read it!
This, together with the lstat() optimizations, means that "git commit"
on the kernel tree really only needs to lstat() the index entries once.
That noticeably cuts down on the cached timings.
Best time before:
[torvalds@woody linux]$ time git commit > /dev/null
real 0m0.399s
user 0m0.232s
sys 0m0.164s
Best time after:
[torvalds@woody linux]$ time git commit > /dev/null
real 0m0.254s
user 0m0.140s
sys 0m0.112s
so it's a noticeable improvement in addition to being a nice conceptual
cleanup (it's really not that pretty that "run_diff_index()" dirties the
index!)
Doing an "strace -c" on it also shows that as it cuts the number of
lstat() calls by two thirds, it goes from being lstat()-limited to being
limited by getdents() (which is the readdir system call):
Before:
% time seconds usecs/call calls errors syscall
------ ----------- ----------- --------- --------- ----------------
60.69 0.000704 0 69230 31 lstat
23.62 0.000274 0 5522 getdents
8.36 0.000097 0 5508 2638 open
2.59 0.000030 0 2869 close
2.50 0.000029 0 274 write
1.47 0.000017 0 2844 fstat
After:
% time seconds usecs/call calls errors syscall
------ ----------- ----------- --------- --------- ----------------
45.17 0.000276 0 5522 getdents
26.51 0.000162 0 23112 31 lstat
19.80 0.000121 0 5503 2638 open
4.91 0.000030 0 2864 close
1.48 0.000020 0 274 write
1.34 0.000018 0 2844 fstat
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It passes the test-suite for me, but this is another of one of those
really core functions, and certainly pretty subtle, so..
NOTE! The Linux lstat() system call is really quite cheap when everything
is cached, so the fact that this is quite noticeable on Linux is likely to
mean that it is *much* more noticeable on other operating systems. I bet
you'll see a much bigger performance improvement from this on Windows in
particular.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Aside from the lstat(2) done for work tree files, there are
quite many lstat(2) calls in refname dwimming codepath. This
patch is not about reducing them.
* It adds a new ce_flag, CE_UPTODATE, that is meant to mark the
cache entries that record a regular file blob that is up to
date in the work tree. If somebody later walks the index and
wants to see if the work tree has changes, they do not have
to be checked with lstat(2) again.
* fill_stat_cache_info() marks the cache entry it just added
with CE_UPTODATE. This has the effect of marking the paths
we write out of the index and lstat(2) immediately as "no
need to lstat -- we know it is up-to-date", from quite a lot
fo callers:
- git-apply --index
- git-update-index
- git-checkout-index
- git-add (uses add_file_to_index())
- git-commit (ditto)
- git-mv (ditto)
* refresh_cache_ent() also marks the cache entry that are clean
with CE_UPTODATE.
* write_index is changed not to write CE_UPTODATE out to the
index file, because CE_UPTODATE is meant to be transient only
in core. For the same reason, CE_UPDATE is not written to
prevent an accident from happening.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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We currently use lower 12-bit (masked with CE_NAMEMASK) in the
ce_flags field to store the length of the name in cache_entry,
without checking the length parameter given to
create_ce_flags(). This can make us store incorrect length.
Currently we are mostly protected by the fact that many
codepaths first copy the path in a variable of size PATH_MAX,
which typically is 4096 that happens to match the limit, but
that feels like a bug waiting to happen. Besides, that would
not allow us to shorten the width of CE_NAMEMASK to use the bits
for new flags.
This redefines the meaning of the name length stored in the
cache_entry. A name that does not fit is represented by storing
CE_NAMEMASK in the field, and the actual length needs to be
computed by actually counting the bytes in the name[] field.
This way, only the unusually long paths need to suffer.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This converts the index explicitly on read and write to its on-disk
format, allowing the in-core format to contain more flags, and be
simpler.
In particular, the in-core format is now host-endian (as opposed to the
on-disk one that is network endian in order to be able to be shared
across machines) and as a result we can dispense with all the
htonl/ntohl on accesses to the cache_entry fields.
This will make it easier to make use of various temporary flags that do
not exist in the on-disk format.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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* ph/describe-match:
git-name-rev: add a --(no-)undefined option.
git-describe: Add a --match option to limit considered tags.
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Rework get_rev_name to return NULL rather than "undefined" when a
reference is undefined. If --undefined is passed (default), git-name-rev
prints "undefined" for the name, else it die()s.
Make git-describe use --no-undefined when calling git-name-rev so
that --contains behavior matches the standard git-describe one.
Signed-off-by: Pierre Habouzit <madcoder@debian.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Pierre Habouzit <madcoder@debian.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Change the default operation to show 'when (day the commit was made),
who (who made the commit), what (what the commit log was)' in the
minibuffer instead of SHA1 and title of the commit log.
Since the user may prefer other displaying options, it is made as a
user-configurable option.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This establishes what the "bad" whitespaces are for this
project.
The rules are:
- Unless otherwise specified, indent with SP that could be
replaced with HT are not "bad". But SP before HT in the
indent is "bad", and trailing whitespaces are "bad".
- For C source files, initial indent by SP that can be replaced
with HT is also "bad".
- Test scripts in t/ and test vectors in its subdirectories can
contain anything, so we make it unrestricted for now.
Anything "bad" will be shown in WHITESPACE error indicator in
diff output, and "apply --whitespace=warn" will warn about it.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This command is identical to `git blame', but it shows SVN revision
numbers instead of git commit hashes.
[ew: support "^initial commit" and minor formatting fixes]
Signed-off-by: Tim Stoakes <tim@stoakes.net>
Acked-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* maint: (35 commits)
config.c: guard config parser from value=NULL
builtin-log.c: guard config parser from value=NULL
imap-send.c: guard config parser from value=NULL
wt-status.c: guard config parser from value=NULL
setup.c: guard config parser from value=NULL
remote.c: guard config parser from value=NULL
merge-recursive.c: guard config parser from value=NULL
http.c: guard config parser from value=NULL
help.c: guard config parser from value=NULL
git.c: guard config parser from value=NULL
diff.c: guard config parser from value=NULL
convert.c: guard config parser from value=NULL
connect.c: guard config parser from value=NULL
builtin-tag.c: guard config parser from value=NULL
builtin-show-branch.c: guard config parser from value=NULL
builtin-reflog.c: guard config parser from value=NULL
builtin-log.c: guard config parser from value=NULL
builtin-config.c: guard config parser from value=NULL
builtin-commit.c: guard config parser from value=NULL
builtin-branch.c: guard config parser from value=NULL
...
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user.{name,email}, core.{pager,editor,excludesfile,whitespace} and
i18n.{commit,logoutput}encoding all expect string values.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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format.suffix expects a string value. format.numbered is bool plus "auto"
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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None of the configuration variables this expects is boolean.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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status.color.* and color.status.* expect a string value
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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core.worktree expects a string value
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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branch.*.{remote,merge} expect a string value
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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merge.default, merge.*.{name,driver} expect a string value
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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http.sslcert and friends expect a string value
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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help.format configuration expects a string value
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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alias.* configuration expects a string value
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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diff.external, diff.*.command, diff.color.*, color.diff.* and
diff.*.funcname configuration variables expect a string value.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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filter.*.smudge and filter.*.clean configuration variables expect a
string value.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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core.gitproxy configuration expects a string value.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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user.signingkey configuration expects a string value.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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showbranch.default configuration expects a string value.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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gc.reflogexpire and gc.reflogexpireunreachable configuration expect
a string value suitable for calling approxidate() with.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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format.subjectprefix configuration expects a string value.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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color configuration variables expect a string value.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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commit.template configuration expects a string value.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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color.branch.* configuration variables expect a string value.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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apply.whitespace configuration expects a string value.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This is used to report misconfigured configuration file that does not
give any value to a non-boolean variable, e.g.
[section]
var
It is perfectly fine to say it if the section.var is a boolean (it means
true), but if a variable expects a string value it should be flagged as
a configuration error.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Miklos Vajna <vmiklos@frugalware.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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