read_revisions_from_stdin() has passed pointers to its read buffer
down to handle_revision_arg() since its inception way back in 42cabc3
(Teach rev-list an option to read revs from the standard input.,
2006-09-05). Even back then, this was a bug: through
add_pending_object, the argument was recorded in the object_array's
'name' field.
Fix it by making a copy whenever read_revisions_from_stdin() passes an
argument down the callchain. The other caller runs handle_revision_arg()
on argv[], where it would be redundant to make a copy.
Signed-off-by: Thomas Rast <trast@inf.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Because we reuse curl handles for multiple requests, the
setup of a handle happens in two stages: stable, global
setup and per-request setup. The lifecycle of a handle is
something like:
1. get_curl_handle; do basic global setup that will last
through the whole program (e.g., setting the user
agent, ssl options, etc)
2. get_active_slot; set up a per-request baseline (e.g.,
clearing the read/write functions, making it a GET
request, etc)
3. perform the request with curl_*_perform functions
4. goto step 2 to perform another request
Breaking it down this way means we can avoid doing global
setup from step (1) repeatedly, but we still finish step (2)
with a predictable baseline setup that callers can rely on.
Until commit 6d052d7 (http: add HTTP_KEEP_ERROR option,
2013-04-05), setting curl's FAILONERROR option was a global
setup; we never changed it. However, 6d052d7 introduced an
option where some requests might turn off FAILONERROR. Later
requests using the same handle would have the option
unexpectedly turned off, which meant they would not notice
http failures at all.
This could easily be seen in the test-suite for the
"half-auth" cases of t5541 and t5551. The initial requests
turned off FAILONERROR, which meant it was erroneously off
for the rpc POST. That worked fine for a successful request,
but meant that we failed to react properly to the HTTP 401
(instead, we treated whatever the server handed us as a
successful message body).
The solution is simple: now that FAILONERROR is a
per-request setting, we move it to get_active_slot to make
sure it is reset for each request.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In the current transport-helper code, refs without namespaced refspecs don't
work correctly, so let's always use them.
Some people reported issues with 'git clone --mirror', and this fixes them, as
well as possibly others.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git diff --diff-algorithm algo" is also understood as "git diff
--diff-algorithm=algo".
* jk/diff-algo-finishing-touches:
diff: allow unstuck arguments with --diff-algorithm
git-merge(1): document diff-algorithm option to merge-recursive
The new core.commentchar configuration was not applied to a few
places.
* rt/commentchar-fmt-merge-msg:
fmt-merge-msg: use core.commentchar in tag signatures completely
fmt-merge-msg: respect core.commentchar in people credits
"git bundle" did not like a bundle created using a commit without
any message as its one of the prerequistes.
* lf/bundle-with-tip-wo-message:
bundle: Accept prerequisites without commit messages
"git show-branch" was not prepared to show a very long run of
ancestor operators e.g. foobar^2~2^2^2^2...^2~4 correctly.
* jk/show-branch-strbuf:
show-branch: use strbuf instead of static buffer
Improve error reporting from the http transfer clients.
* jk/http-error-messages:
http: drop http_error function
remote-curl: die directly with http error messages
http: re-word http error message
http: simplify http_error helper function
remote-curl: consistently report repo url for http errors
remote-curl: always show friendlier 404 message
remote-curl: let servers override http 404 advice
remote-curl: show server content on http errors
http: add HTTP_KEEP_ERROR option
Closing (not redirecting to /dev/null) the standard error stream is
not a very smart thing to do. Later open may return file
descriptor #2 for unrelated purpose, and error reporting code may
write into them.
* tr/perl-keep-stderr-open:
t9700: do not close STDERR
perl: redirect stderr to /dev/null instead of closing
'git-status --ignored' still scans the work tree twice to collect
untracked and ignored files, respectively.
fill_directory / read_directory already supports collecting untracked and
ignored files in a single directory scan. However, the DIR_COLLECT_IGNORED
flag to enable this has some git-add specific side-effects (e.g. it
doesn't recurse into ignored directories, so listing ignored files with
--untracked=all doesn't work).
The DIR_SHOW_IGNORED flag doesn't list untracked files and returns ignored
files in dir_struct.entries[] (instead of dir_struct.ignored[] as
DIR_COLLECT_IGNORED). DIR_SHOW_IGNORED is used all throughout git.
We don't want to break the existing API, so lets introduce a new flag
DIR_SHOW_IGNORED_TOO that lists untracked as well as ignored files similar
to DIR_COLLECT_FILES, but will recurse into sub-directories based on the
other flags as DIR_SHOW_IGNORED does.
In dir.c::read_directory_recursive, add ignored files to either
dir_struct.entries[] or dir_struct.ignored[] based on the flags. Also move
the DIR_COLLECT_IGNORED case here so that filling result lists is in a
common place.
In wt-status.c::wt_status_collect_untracked, use the new flag and read
results from dir_struct.ignored[]. Remove the extra fill_directory call.
builtin/check-ignore.c doesn't call fill_directory, setting the git-add
specific DIR_COLLECT_IGNORED flag has no effect here. Remove for clarity.
Update API documentation to reflect the changes.
Performance: with this patch, 'git-status --ignored' is typically as fast
as 'git-status'.
Signed-off-by: Karsten Blees <blees@dcon.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
'git-status --ignored' recursively scans directories up to three times:
1. To collect untracked files.
2. To collect ignored files.
3. When collecting ignored files, to check that an untracked directory
that potentially contains ignored files doesn't also contain untracked
files (i.e. isn't already listed as untracked).
Let's get rid of case 3 first.
Currently, read_directory_recursive returns a boolean whether a directory
contains the requested files or not (actually, it returns the number of
files, but no caller actually needs that), and DIR_SHOW_IGNORED specifies
what we're looking for.
To be able to test for both untracked and ignored files in a single scan,
we need to return a bit more info, and the result must be independent of
the DIR_SHOW_IGNORED flag.
Reuse the path_treatment enum as return value of read_directory_recursive.
Split path_handled in two separate values path_excluded and path_untracked
that don't change their meaning with the DIR_SHOW_IGNORED flag. We don't
need an extra value path_untracked_and_excluded, as directories with both
untracked and ignored files should be listed as untracked.
Rename path_ignored to path_none for clarity (i.e. "don't treat that path"
in contrast to "the path is ignored and should be treated according to
DIR_SHOW_IGNORED").
Replace enum directory_treatment with path_treatment. That's just another
enum with the same meaning, no need to translate back and forth.
In treat_directory, get rid of the extra read_directory_recursive call and
all the DIR_SHOW_IGNORED-specific code.
In read_directory_recursive, decide whether to dir_add_name path_excluded
or path_untracked paths based on the DIR_SHOW_IGNORED flag.
The return value of read_directory_recursive is the maximum path_treatment
of all files and sub-directories. In the check_only case, abort when we've
reached the most significant value (path_untracked).
Signed-off-by: Karsten Blees <blees@dcon.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Checking if a file is in the index is much faster (hashtable lookup) than
checking if the file is excluded (linear search over exclude patterns).
Skip is_excluded checks for files: move the cache_name_exists check from
treat_file to treat_one_path and return early if the file is tracked.
This can safely be done as all other code paths also return path_ignored
for tracked files, and dir_add_ignored skips tracked files as well.
There's just one line left in treat_file, so move this to treat_one_path
as well.
Here's some performance data for git-status from the linux and WebKit
repos (best of 10 runs on a Debian Linux on SSD, core.preloadIndex=true):
| status | status --ignored
| linux | WebKit | linux | WebKit
-------+-------+--------+-------+---------
before | 0.218 | 1.583 | 0.321 | 2.579
after | 0.156 | 0.988 | 0.202 | 1.279
gain | 1.397 | 1.602 | 1.589 | 2.016
Signed-off-by: Karsten Blees <blees@dcon.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The is_excluded and is_path_excluded APIs are very similar, except for a
few noteworthy differences:
is_excluded doesn't handle ignored directories, results for paths within
ignored directories are incorrect. This is probably based on the premise
that recursive directory scans should stop at ignored directories, which
is no longer true (in certain cases, read_directory_recursive currently
calls is_excluded *and* is_path_excluded to get correct ignored state).
is_excluded caches parsed .gitignore files of the last directory in struct
dir_struct. If the directory changes, it finds a common parent directory
and is very careful to drop only as much state as necessary. On the other
hand, is_excluded will also read and parse .gitignore files in already
ignored directories, which are completely irrelevant.
is_path_excluded correctly handles ignored directories by checking if any
component in the path is excluded. As it uses is_excluded internally, this
unfortunately forces is_excluded to drop and re-read all .gitignore files,
as there is no common parent directory for the root dir.
is_path_excluded tracks state in a separate struct path_exclude_check,
which is essentially a wrapper of dir_struct with two more fields. However,
as is_path_excluded also modifies dir_struct, it is not possible to e.g.
use multiple path_exclude_check structures with the same dir_struct in
parallel. The additional structure just unnecessarily complicates the API.
Teach is_excluded / prep_exclude about ignored directories: whenever
entering a new directory, first check if the entire directory is excluded.
Remember the excluded state in dir_struct. Don't traverse into already
ignored directories (i.e. don't read irrelevant .gitignore files).
Directories could also be excluded by exclude patterns specified on the
command line or .git/info/exclude, so we cannot simply skip prep_exclude
entirely if there's no .gitignore file name (dir_struct.exclude_per_dir).
Move this check to just before actually reading the file.
is_path_excluded is now equivalent to is_excluded, so we can simply
redirect to it (the public API is cleaned up in the next patch).
The performance impact of the additional ignored check per directory is
hardly noticeable when reading directories recursively (e.g. 'git status').
However, performance of git commands using the is_path_excluded API (e.g.
'git ls-files --cached --ignored --exclude-standard') is greatly improved
as this no longer re-reads .gitignore files on each call.
Here's some performance data from the linux and WebKit repos (best of 10
runs on a Debian Linux on SSD, core.preloadIndex=true):
| ls-files -ci | status | status --ignored
| linux | WebKit | linux | WebKit | linux | WebKit
-------+-------+--------+-------+--------+-------+---------
before | 0.506 | 6.539 | 0.212 | 1.555 | 0.323 | 2.541
after | 0.080 | 1.191 | 0.218 | 1.583 | 0.321 | 2.579
gain | 6.325 | 5.490 | 0.972 | 0.982 | 1.006 | 0.985
Signed-off-by: Karsten Blees <blees@dcon.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The notion of "ignored tracked" directories introduced in 721ac4ed "dir.c:
Make git-status --ignored more consistent" has a few unwanted side effects:
- git-clean -d -X: deletes ignored tracked directories. git-clean should
never delete tracked content.
- git-ls-files --ignored --other --directory: lists ignored tracked
directories instead of "other" directories.
- git-status --ignored: lists ignored tracked directories while contained
files may be listed as modified. Paths listed by git-status should be
disjoint (except in long format where a path may be listed in both the
staged and unstaged section).
Additionally, the current behaviour violates documentation in gitignore(5)
("Specifies intentionally *untracked* files to ignore") and Documentation/
technical/api-directory-listing.txt ("DIR_SHOW_OTHER_DIRECTORIES: Include
a directory that is *not tracked*.").
In dir.c::treat_directory, remove the special handling of ignored tracked
directories, so that the DIR_SHOW_OTHER_DIRECTORIES flag only affects
"other" (i.e. untracked) directories. In dir.c::dir_add_name, check that
added paths are untracked even if DIR_SHOW_IGNORED is set.
Signed-off-by: Karsten Blees <blees@dcon.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
'git-status --ignored path/' doesn't list ignored files and directories
within 'path' if some component of 'path' is classified as untracked.
Disable the DIR_SHOW_OTHER_DIRECTORIES flag while traversing leading
directories. This prevents treat_leading_path() with DIR_SHOW_IGNORED flag
from aborting at the top level untracked directory.
As a side effect, this also eliminates a recursive directory scan per
leading directory level, as treat_directory() can no longer call
read_directory_recursive() when called from treat_leading_path().
Signed-off-by: Karsten Blees <blees@dcon.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
'git-status --ignored' lists empty untracked directories as ignored, even
though they don't have any ignored files.
When checking if a directory is already listed as untracked (i.e. shouldn't
be listed as ignored as well), don't assume that the directory has only
ignored files if it doesn't have untracked files, as the directory may be
empty.
Signed-off-by: Karsten Blees <blees@dcon.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
'git-ls-files --ignored --directories' hides empty directories even though
--no-empty-directory was not specified.
Treat the DIR_HIDE_EMPTY_DIRECTORIES flag independently from
DIR_SHOW_IGNORED to make all git-ls-files options work as expected.
Signed-off-by: Karsten Blees <blees@dcon.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
'git-status --ignored' lists ignored tracked directories without any
ignored files if a tracked file happens to match an exclude pattern.
Always exclude tracked files.
Signed-off-by: Karsten Blees <blees@dcon.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
'git-status --ignored' lists both the ignored directory and the ignored
files if the files are in a tracked sub directory.
When recursing into sub directories in read_directory_recursive, pass on
the check_only parameter so that we don't accidentally add the files.
Signed-off-by: Karsten Blees <blees@dcon.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
'git-status --ignored' drops ignored directories if they contain untracked
files in an untracked sub directory.
Fix it by getting exact (recursive) excluded status in treat_directory.
Signed-off-by: Karsten Blees <blees@dcon.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The exact definition of "refspec" can be found in git-fetch and
git-push manpages. So don't duplicate this here in the glossary.
Actually the definition of "pathspec" should be moved to a separate
file akin to the way it's done with "refspec". But this will only be
wortwhile when there's more to say about it. So for the time being
just improve the first sentence a little bit; fix the indentation of
the first paragraph after the bullet list and remove the one-item
list of magic signatures with its - for the user - unnecessary
introduction of "magic word 'top'".
Signed-off-by: Thomas Ackermann <th.acker@arcor.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Use "SHA-1" instead of "SHA1" whenever we talk about the hash function.
When used as a programming symbol, we keep "SHA1".
Signed-off-by: Thomas Ackermann <th.acker@arcor.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The name of the hash function is "SHA-1", not "SHA1".
Also to people who look up "object name" in the glossary,
the details of which hash function is applied on what to
compute "object name" is not important but the fact that the
name is meant to be an unique identifier for the contents
stored in the object is.
Signed-off-by: Thomas Ackermann <th.acker@arcor.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Otherwise when using 'git branch -vv' it's hard to see them among so
much output.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When bisect successfully finds a single revision, the first bad commit
should be shown to human readers of 'git bisect log'.
This resolves the apparent disconnect between the bisection result and
the log when a bug reporter says "I know that the first bad commit is
$rev, as you can see from $(git bisect log)".
Signed-off-by: Torstein Hegge <hegge@resisty.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This allows a remote helper using the 'export' protocol to specify that
it supports signed tags, changing the handing from 'warn-strip' to
'verbatim'.
Signed-off-by: John Keeping <john@keeping.me.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Currently, attempting to push a signed tag to a remote helper which uses
fast-export results in the remote helper failing because the default
fast-export action for signed tags is "abort". This is not helpful for
users because there is no way to pass additional arguments to
fast-export here, either from the remote helper or from the command
line.
In general, the signature will be invalidated by whatever transformation
a remote helper performs on a tag to push it to a repository in a
different format so the correct behaviour is to strip the tag. Doing
this silently may surprise people, so use "warn-strip" to issue a
warning when a signed tag is encountered.
Signed-off-by: John Keeping <john@keeping.me.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This issues a warning while stripping signatures from signed tags, which
allows us to use it as default behaviour for remote helpers which cannot
specify how to handle signed tags.
Signed-off-by: John Keeping <john@keeping.me.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git checkout -- <paths>" is usually used to restore all modified
files in <paths>. In sparse checkout mode, this command is overloaded
with another meaning: to add back all files in <paths> that are
excluded by sparse patterns.
As the former makes more sense for day-to-day use. Switch it to the
default and the latter enabled with --ignore-skip-worktree-bits.
While at there, add info/sparse-checkout to gitrepository-layout.txt
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The flow of the text describing GITWEB_CONFIG_SYSTEM and
GITWEB_CONFIG_COMMON in gitweb/INSTALL is awkward. "This is bad. Oh
the other hand, better is broken. Therefore we do this." forces
readers to make multiple guesses while reading: "ok, bad, so you
plan to change it and warn us about upcoming change? oh, not that,
changing it is bad, so we have to live with it? oh, not that, there
is another one that is common and that is what we can use".
Better rewrite said paragraph to avoid such a mental roller-coaster in
the first place.
Signed-off-by: Junio Hamano <gitster@pobox.com>
Signed-off-by: Jakub Narebski <jnareb@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The $test variable is used as an interim buffer for
constructing $TRASH_DIRECTORY, and is almost compatible with
it (the exception being that $test has not been converted to
an absolute path). Let's get rid of it entirely so that
later code does not accidentally use it, thinking the two
are interchangeable.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
After the location of $TRASH_DIRECTORY is adjusted by
$TEST_OUTPUT_DIRECTORY, we go on to use the $test variable to make the
trash directory and cd into it. This means that when
$TEST_OUTPUT_DIRECTORY is not "." and an absolute --root has not been
specified, we do not remove the trash directory once the tests are
complete (remove_trash is set to $TRASH_DIRECTORY).
Fix this by always referring to the trash directory as $TRASH_DIRECTORY.
Signed-off-by: John Keeping <john@keeping.me.uk>
Acked-by: Jeff King <peff@peff.net>
Acked-by: Thomas Rast <trast@inf.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
No need to calculate a new $c with a space if we are not going to do
anything it with it.
There should be no functional changes, except that a word "foo " with no
suffixes can't be matched. But $cur cannot have a space at the end
anyway. So it's safe.
Based on the code from SZEDER Gábor.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
There is no point in calling a separate function that is only used
in one place. Especially considering that there's no need to call
compgen, and we traverse the words ourselves both in __gitcompadd,
and __gitcomp_1.
Let's squash the functions together, and traverse only once.
This improves performance. For N number of words:
== 1 ==
original: 0.002s
new: 0.000s
== 10 ==
original: 0.005s
new: 0.001s
== 100 ==
original: 0.009s
new: 0.006s
== 1000 ==
original: 0.027s
new: 0.019s
== 10000 ==
original: 0.163s
new: 0.151s
== 100000 ==
original: 1.555s
new: 1.497s
No functional changes.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The functionality we use from compgen is not much, we can do the same
manually, with drastic improvements in speed, especially when dealing
with only a few words.
This patch also has the sideffect that brekage reported by Jeroen Meijer
and SZEDER Gábor gets fixed because we no longer expand the resulting
words.
Here are some numbers filtering N amount of words:
== 1 ==
original: 0.002s
new: 0.000s
== 10 ==
original: 0.002s
new: 0.000s
== 100 ==
original: 0.003s
new: 0.002s
== 1000 ==
original: 0.012s
new: 0.011s
== 10000 ==
original: 0.056s
new: 0.066s
== 100000 ==
original: 2.669s
new: 0.622s
If the results are not narrowed:
== 1 ==
original: 0.002s
new: 0.000s
== 10 ==
original: 0.002s
new: 0.001s
== 100 ==
original: 0.004s
new: 0.004s
== 1000 ==
original: 0.020s
new: 0.015s
== 10000 ==
original: 0.101s
new: 0.355s
== 100000 ==
original: 2.850s
new: 31.941s
So, unless 'git checkout <tab>' usually gives you more than 10000
results, you'll get an improvement :)
Other possible solutions perform better after 1000 words, but worst if
less than that:
COMPREPLY=($(awk -v cur="$3" -v pre="$2" -v suf="$4"
'$0 ~ cur { print pre$0suf }' <<< "$1" ))
COMPREPLY=($(printf -- "$2%s$4\n" $1 | grep "^$2$3"))
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The idea is to never touch the COMPREPLY variable directly.
This allows other completion systems (i.e. zsh) to override
__gitcompadd, and do something different instead.
Also, this allows further optimizations down the line.
There should be no functional changes.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If the user has a cover-letter configuration set to anything other
than 'false', 'git format-patch' may generate a cover letter, which
has no place in "format-patch | am" pipeline.
The internal invocation of format-patch must explicitly override the
configuration from the command line, just like --src-prefix and other
options already do.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When setting up a "half-auth" repository in which reads can
be done anonymously but writes require authentication, it is
best if the server can require authentication for both the
ref advertisement and the actual receive-pack POSTs. This
alleviates the need for the admin to set http.receivepack in
the repositories, and means that the client is challenged
for credentials immediately, instead of partway through the
push process (and git clients older than v1.7.11.7 had
trouble handling these challenges).
Since detecting a push during the ref advertisement requires
matching the query string, and this is non-trivial to do in
Apache, we have traditionally punted and instructed users to
just protect "/git-receive-pack$". This patch provides the
mod_rewrite recipe to actually match the ref advertisement,
which is preferred.
While we're at it, let's add the recipe to our test scripts
so that we can be sure that it works, and doesn't get broken
(either by our changes or by changes in Apache).
Signed-off-by: Jeff King <peff@peff.net>
Acked-by: Jakub Narębski <jnareb@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Make the shell script more portable:
- Split export X=Y into 2 lines
- Use printf instead of echo -e
Use UTF-8 code points which are not decomposed by the filesystem:
Code points like "á" will be decomposed by Mac OS X.
bzr is unable to find the file "á" on disk.
Use code points from unicode which can not be decomposed.
In other words, the precompsed form use the same bytes as decomposed.
Signed-off-by: Torsten Bögershausen <tboegi@web.de>
Acked-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* maint:
Correct common spelling mistakes in comments and tests
kwset: fix spelling in comments
precompose-utf8: fix spelling of "want" in error message
compat/nedmalloc: fix spelling in comments
compat/regex: fix spelling and grammar in comments
obstack: fix spelling of similar
contrib/subtree: fix spelling of accidentally
git-remote-mediawiki: spelling fixes
doc: various spelling fixes
fast-export: fix argument name in error messages
Documentation: distinguish between ref and offset deltas in pack-format
i18n: make the translation of -u advice in one go
