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The PPC SHA1 routine had an overflow which meant that it gave
incorrect results for input buffers >= 512MB. This fixes it by
ensuring that the update of the total length in bits is done using
64-bit arithmetic.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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These two tests assume that "sed" will not modify the final line of a
stream if it does not end with a newline character. The assumption is
not true at least for FreeBSD and Solaris 9. FreeBSD's "sed" appends
a newline character; "sed" in Solaris 9 even removes the incomplete
final line. This patch makes the test use perl instead.
Signed-off-by: Dennis Stosberg <dennis@stosberg.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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This shrinks "struct object" to the absolutely minimal size possible.
It now contains /only/ the object flags and the SHA1 hash name of the
object.
The "refs" field, which is really needed only for fsck, is maintained in
a separate hashed lookup-table, allowing all normal users to totally
ignore it.
This helps memory usage, although not as much as I hoped: it looks like
the allocation overhead of malloc (and the alignment constraints in
particular) means that while the structure size shrinks, the actual
allocation overhead mostly does not.
[ That said: memory usage is actually down, but not as much as it should
be: I suspect just one of the object types actually ended up shrinking
its effective allocation size.
To get to the next level, we probably need specialized allocators that
don't pad the allocation more than necessary. ]
The separation makes for some code cleanup, though, and makes the ref
tracking that fsck wants a clearly separate thing.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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git-tar-tree adds an extended pax header to archives if its first
parameter points to a commit. It confuses older tars and isn't
very useful in the case of git anyway, so stop doing it.
Idea: Junio, implementation: Junio. I just wrote it up. :-)
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Noticed by Florian Forster: Use a char pointer when adding offsets,
because void pointer arithmetic is a GNU extension. Const'ify the
function arguments while we're at it.
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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* add example on how to avoid adding a global extended pax header
* don't mention linux anymore, use git itself as an example instead
* update to v1.4.0 ;-)
* append missing :: to the examples
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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We can write the trailer in one or at most two steps; it will always
fit within two blocks. With the last caller of get_record() gone we
can get rid of it.
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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This is really the dregs of my effort to not waste memory in git-rev-list,
and makes barely one percent of a difference in the memory footprint, but
hey, it's also a pretty small patch.
It discards the parent lists and the commit buffer after the commit has
been shown by git-rev-list (and "git log" - which already did the commit
buffer part), and frees the commit list entry that was used by the
revision walker.
The big win would be to get rid of the "refs" pointer in the object
structure (another 5%), because it's only used by fsck. That would require
some pretty major surgery to fsck, though, so I'm timid and did the less
interesting but much easier part instead.
This (percentually) makes a bigger difference to "git log" and friends,
since those are walking _just_ commits, and thus the list entries tend to
be a bigger percentage of the memory use. But the "list all objects" case
does improve too.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Every single user actually wanted this only for commit objects, and we
have no reason to waste space on it for other object types. So just move
the structure member from the low-level "struct object" into the "struct
commit".
This leaves the commit object the same size, and removes one unnecessary
pointer from all other object allocations.
This shrinks memory usage (still at a fairly hefty half-gig, admittedly)
of "git-rev-list --all --objects" on the mozilla repo by another 5% in my
tests.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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This shrinks "struct object" by a small amount, by getting rid of the
"struct type *" pointer and replacing it with a 3-bit bitfield instead.
In addition, we merge the bitfields and the "flags" field, which
incidentally should also remove a useless 4-byte padding from the object
when in 64-bit mode.
Now, our "struct object" is still too damn large, but it's now less
obviously bloated, and of the remaining fields, only the "util" (which is
not used by most things) is clearly something that should be eventually
discarded.
This shrinks the "git-rev-list --all" memory use by about 2.5% on the
kernel archive (and, perhaps more importantly, on the larger mozilla
archive). That may not sound like much, but I suspect it's more on a
64-bit platform.
There are other remaining inefficiencies (the parent lists, for example,
probably have horrible malloc overhead), but this was pretty obvious.
Most of the patch is just changing the comparison of the "type" pointer
from one of the constant string pointers to the appropriate new TYPE_xxx
small integer constant.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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If your repository have more roots than the remote repository
you ask an object for, the remote upload-pack keeps responding
"ack continue" until it fills up its received-have buffer
(currently 256 entries). Usually this is not a problem because
the requester stops traversing the ancestry chain from the commit
it gets "ack continue" for, but this mechanism does not work as
a roadblock when it traverses down the path to the root the
other side does not have.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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* jc/rw-prefix:
read-tree: reorganize bind_merge code.
write-tree: --prefix=<path>
read-tree: --prefix=<path>/ option.
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This does not change the logic but moves the order of checks
around so that merging of read-tree safety code would become
easier.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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The "bind" commit can express an aggregation of multiple
projects into a single commit.
In such an organization, there would be one project, root of
whose tree object is at the same level of the root of the
aggregated projects, and other projects have their toplevel in
separate subdirectories. Let's call that root level project the
"primary project", and call other ones just "subprojects".
You would first read-tree the primary project, and then graft
the subprojects under their appropriate location using read-tree
--prefix=<subdir>/ repeatedly.
To write out a tree object from such an index for a subproject,
write-tree --prefix=<subdir>/ is used.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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With "--prefix=<path>/" option, read-tree keeps the current
index contents, and reads the contents of named tree-ish under
directory at `<prefix>`. The original index file cannot have
anything at the path `<prefix>` itself, and have nothing in
`<prefix>/` directory. This can be used to graft an
independent tree into a subdirectory of the current index.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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* pe/date:
date.c: improve guess between timezone offset and year.
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When match_digit() guesses a four-digit string to tell if it is
a year or a timezone, it did not consider that some real-world
places have UTC offsets equal to +1400.
$ date; TZ=UTC0 date; TZ=Pacific/Kiritimati date
Wed Jun 7 23:25:42 PDT 2006
Thu Jun 8 06:25:42 UTC 2006
Thu Jun 8 20:25:42 LINT 2006
Signed-off-by: Paul Eggert <eggert@CS.UCLA.EDU>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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[jc: this is based on Eric's patch but also fixes up the parsed
subject headers].
Signed-off-by: Junio C Hamano <junkio@cox.net>
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It was pointed out that the current behaviour might mispart a patch comment
so remove this behaviour for now.
[jc: this fixes "From: line in the middle" check in t5100 test.]
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Currently the test passes with 1.3.3 but not with the tip of
"master". This is to verify the fixes from Eric W Biedermann.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Some versions of "diff" (e.g. on FreeBSD and older Linux systems) do
not support the "\ No newline at end of file" remark and are not
able to generate the patches needed for this test. This lets the
test fail, although git-apply is working perfectly. This patch adds
the pre-generated patches to t/t4100/ and makes the test use them.
Signed-off-by: Dennis Stosberg <dennis@stosberg.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Signed-off-by: Junio C Hamano <junkio@cox.net>
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Signed-off-by: Junio C Hamano <junkio@cox.net>
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This does:
- add a "rev.simplify_history" flag which defaults to on
- it turns it off for "git whatchanged" (which thus now has real
semantics outside of "git log")
- it adds a command line flag ("--full-history") to turn it off for
others (ie you can make "git log" and "gitk" etc get the semantics if
you want to.
Now, just as an example of _why_ you really really really want to simplify
history by default, apply this patch, install it, and try these two
command lines:
gitk --full-history -- git.c
gitk -- git.c
and compare the output.
So with this, you can also now do
git whatchanged -p -- gitweb.cgi
git log -p --full-history -- gitweb.cgi
and it will show the old history of gitweb.cgi, even though it's not
relevant to the _current_ state of the name "gitweb.cgi"
NOTE NOTE NOTE! It will still actually simplify away merges that didn't
change anything at all into either child. That creates these bogus strange
discontinuities if you look at it with "gitk" (look at the --full-history
gitk output for git.c, and you'll see a few strange cases).
So the whole "--parent" thing ends up somewhat bogus with --full-history
because of this, but I'm not sure it's worth even worrying about. I don't
think you'd ever want to really use "--full-history" with the graphical
representation, I just give it as an example exactly to show _why_ doing
so would be insane.
I think this is trivial enough and useful enough to be worth merging into
the stable branch.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Signed-off-by: Peter Eriksen <s022018@student.dtu.dk>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Since `git-annotate' is an expensive operation to run it may be
desirable to deactivate this functionality. This patch introduces
the `gitweb.blame' option to git-repo-config and disables the blame
support by default.
Signed-off-by: Florian Forster <octo@verplant.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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This patch adds an interface for `git-blame' to `gitweb.cgi'.
Links to it are placed in `git_blob'.
Internally the code uses `git-annotate' because `git-blame's output
differs for files that have been renamed in the past. However, I like
the term `blame' better.
[jc: blame can be told to produce the compatible format btw...]
Signed-off-by: Florian Forster <octo@verplant.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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With this patch we have a speedup and much lower IO when
importing trees with many branches. Instead of forcing
index re-population for each branch switch, we keep
many index files around, one per branch.
Signed-off-by: Martin Langhoff <martin@catalyst.net.nz>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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We now capture the output of cvsps to a tempfile, and then read it in.
cvsps 2.1 works quite a bit "in memory", and only prints its patchset
info once it has finished talking with cvs, but apparently retaining
all that memory allocation. With this patch, cvsps is finished and
reaped before cvsimport start working (and growing). So the footprint
of the whole process is much lower.
Signed-off-by: Martin Langhoff <martin@catalyst.net.nz>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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cvsps output often contains references to CVSPS_NO_BRANCH, commits
that it could not trace to a branch. Ignore that branch.
Additionally, cvsps will sometimes draw circular relationships
between branches -- where two branches are recorded as opening
from the other. In those cases, and where the ancestor branch
hasn't been seen, ignore it.
Signed-off-by: Martin Langhoff <martin@catalyst.net.nz>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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fix the usage string and clean up the docs while we are at it
Signed-off-by: Fredrik Kuivinen <freku045@student.liu.se>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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When extra command line arguments are given to a command that
was alias-expanded, the code generated a wrong argument list,
leaving the original alias in the result, and forgetting to
terminate the new argv list.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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P4import currently creates a git tag for every commit it imports.
When importing from a large repository too many tags can be created
for git to manage, so this provides an option to shut that feature
off if necessary.
Signed-off-by: Sean Estabrooks <seanlkml@sympatico.ca>
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* git://git.bogomips.org/git-svn: (25 commits)
git-svn: rebuild convenience and bugfixes
git-svn: svn (command-line) 1.0.x compatibility
git-svn: tests no longer fail if LC_ALL is not a UTF-8 locale
git-svn: bugfix and optimize the 'log' command
git-svn: Eliminate temp file usage in libsvn_get_file()
git-svn: fix several small bugs, enable branch optimization
git-svn: avoid creating some small files
git-svn: make the $GIT_DIR/svn/*/revs directory obsolete
git-svn: add support for Perl SVN::* libraries
git-svn: add 'log' command, a facsimile of basic `svn log'
git-svn: add UTF-8 message test
git-svn: add some functionality to better support branches in svn
git-svn: add --shared and --template= options to pass to init-db
git-svn: add --repack and --repack-flags= options
git-svn: minor cleanups, extra error-checking
git-svn: Move all git-svn-related paths into $GIT_DIR/svn
git-svn: support manually placed initial trees from fetch
git-svn: optimize --branch and --branch-all-ref
git-svn: --branch-all-refs / -B support
git-svn: support -C<num> passing to git-diff-tree
...
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We will now automatically fetch the refs/remotes/git-svn ref
from origin and store a Pull: line for it.
--remote=<origin> may be passed if your remote is named something
other than 'origin'
Also, remember to make GIT_SVN_DIR whenever we need to create
.rev_db
Signed-off-by: Eric Wong <normalperson@yhbt.net>
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Tested on a plain Ubuntu Warty installation
using subversion 1.0.6-1.2ubuntu3
svn add --force was never needed, as it only affected
directories, which git (thankfully) doesn't track
The 1.0.x also didn't support symlinks(!), so allow NO_SYMLINK
to be defined for running tests
Signed-off-by: Eric Wong <normalperson@yhbt.net>
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Signed-off-by: Eric Wong <normalperson@yhbt.net>
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Revisions with long commit messages were being skipped, since
the 'git-svn-id' metadata line was at the end and git-log uses a
32k buffer to print the commits.
Also the last 'git-svn-id' metadata line in a commit is always
the valid one, so make sure we use that, as well.
Made the verbose flag work by passing the correct option switch
('--summary') to git-log.
Finally, optimize -r/--revision argument handling by passing
the appropriate limits to revision
Signed-off-by: Eric Wong <normalperson@yhbt.net>
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This means we'll have a loose object when we encounter a symlink
but that's not the common case.
We also don't have to worry about svn:eol-style when using the
SVN libraries, either. So remove the code to deal with that.
Signed-off-by: Eric Wong <normalperson@yhbt.net>
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Share the repack counter between branches when doing
multi-fetch.
Pass the -d flag to git repack by default. That's the
main reason we will want automatic pack generation, to
save space and improve disk cache performance. I won't
add -a by default since it can generate extremely large
packs that make RAM-starved systems unhappy.
We no longer generate the .git/svn/$GIT_SVN_ID/info/uuid
file, either. It was never read in the first place.
Check for and create .rev_db if we need to during fetch (in case
somebody manually blew away their .rev_db and wanted to start
over. Mainly makes debugging easier).
Croak with $? instead of $! if there's an error closing pipes
Quiet down some of the chatter, too.
Signed-off-by: Eric Wong <normalperson@yhbt.net>
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repo_path_split() is already pretty fast, and is already
optimized via caching.
We also don't need to create an exclude file if we're
relying on the SVN libraries.
Signed-off-by: Eric Wong <normalperson@yhbt.net>
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This is a very intrusive change, so I've beefed up the tests
significantly. Added 'full-test' a target to the Makefile,
to test different possible configurations. This is intended
for maintainers only. Users should only be concerned with
'test' succeeding.
We now have a very simple custom database format for handling
mapping of svn revisions => git commits. Of course, we're
not really using it yet, either.
Also disabled automatic branch-finding on new trees for now.
It's too easily broken. revisions_eq() function should be
helpful for branch detection.
Also removed an extra assertion in fetch_cmd() that wasn't
correctly done. This bug was found by full-test.
Signed-off-by: Eric Wong <normalperson@yhbt.net>
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This means we no longer have to deal with having bloated SVN
working copies around and we get a nice performance increase as
well because we don't have to exec the SVN binary and start a
new server connection each time.
Of course we have to manually manage memory with SVN::Pool
whenever we can, and hack around cases where SVN just eats
memory despite pools (I blame Perl, too). I would like to
keep memory usage as stable as possible during long fetch/commit
processes since I still use computers with only 256-512M RAM.
commit should always be faster with the SVN library code. The
SVN::Delta interface is leaky (or I'm not using it with pools
correctly), so I'm forking on every commit, but that doesn't
seem to hurt performance too much (at least on normal Unix/Linux
systems where fork() is pretty cheap).
fetch should be faster in most common cases, but probably not all.
fetches will be faster where client/server delta generation is
the bottleneck and not bandwidth. Of course, full-files are
generated server-side via deltas, too. Full files are always
transferred when they're updated, just like git-svnimport and
unlike command-line svn. I'm also hacking around memory leaks
(see comments) here by using some more forks.
I've tested fetch with http://, https://, file://, and svn://
repositories, so we should be reasonably covered in terms of
error handling for fetching.
Of course, we'll keep plain command-line svn compatibility as a
fallback for people running SVN 1.1 (I'm looking into library
support for 1.1.x SVN, too). If you want to force command-line
SVN usage, set GIT_SVN_NO_LIB=1 in your environment.
We also require two simultaneous connections (just like
git-svnimport), but this shouldn't be a problem for most
servers.
Less important commands:
show-ignore is slower because it requires repository
access, but -r/--revision <num> can be specified.
graft-branches may use more memory, but it's a
short-term process and is funky-filename-safe.
Signed-off-by: Eric Wong <normalperson@yhbt.net>
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This quick feature should make it easy to look up svn log
messages when svn users refer to -r/--revision numbers.
The following features from `svn log' are supported:
--revision=<n>[:<n>] - is supported, non-numeric args are not:
HEAD, NEXT, BASE, PREV, etc ...
-v/--verbose - just maps to --raw (in git log), so
it's completely incompatible with
the --verbose output in svn log
--limit=<n> - is NOT the same as --max-count,
doesn't count merged/excluded commits
--incremental - supported (trivial :P)
New features:
--show-commit - shows the git commit sha1, as well
--oneline - our version of --pretty=oneline
Any other arguments are passed directly to `git log'
Signed-off-by: Eric Wong <normalperson@yhbt.net>
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Signed-off-by: Eric Wong <normalperson@yhbt.net>
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New commands:
graft-branches - The most interesting command of the bunch. It
detects branches in SVN via various techniques (currently
regexes and file copies). It can be later extended to handle
svk and other properties people may use to track merges in svk.
Basically, merge tracking is not standardized at all in the SVN
world, and git grafts are perfect for dealing with this
situation.
Existing branch support (via tree matches) is only handled at
fetch time.
The following tow were originally implemented as shell scripts
several months ago, but I just decided to streamline things a
bit and added them to the main script.
multi-init - supports git-svnimport-like command-line syntax for
importing repositories that are layed out as recommended by the
SVN folks. This is a bit more tolerant than the git-svnimport
command-line syntax and doesn't require the user to figure out
where the repository URL ends and where the repository path
begins.
multi-fetch - runs fetch on all known SVN branches we're
tracking. This will NOT discover new branches (unlike
git-svnimport), so multi-init will need to be re-run (it's
idempotent).
Consider these three to be auxilliary commands (like
show-ignore, and rebuild) so their behavior won't receive as
much testing or scrutiny as the core commands (fetch and
commit).
Signed-off-by: Eric Wong <normalperson@yhbt.net>
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Signed-off-by: Eric Wong <normalperson@yhbt.net>
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This should help keep disk usage sane for large imports.
--repack takes an optional argument for the interval, it
defaults to 1000 if no argument is specified.
Arguments to --repack-flags are passed directly to git-repack.
No arguments are passed by default.
Idea stolen from git-cvsimport :)
Signed-off-by: Eric Wong <normalperson@yhbt.net>
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While we're at it, read_repo_config has been added and
expanded to handle case where command-line arguments are
optional to Getopt::Long
Signed-off-by: Eric Wong <normalperson@yhbt.net>
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