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Commit Graph

311 Commits

Author SHA1 Message Date
Junio C Hamano
792e22e3fd Merge branch 'bw/push-submodule-only'
"git submodule push" learned "--recurse-submodules=only option to
push submodules out without pushing the top-level superproject.

* bw/push-submodule-only:
  push: add option to push only submodules
  submodules: add RECURSE_SUBMODULES_ONLY value
  transport: reformat flag #defines to be more readable
2017-01-31 13:14:56 -08:00
Junio C Hamano
55d128ae06 Merge branch 'bw/grep-recurse-submodules'
"git grep" has been taught to optionally recurse into submodules.

* bw/grep-recurse-submodules:
  grep: search history of moved submodules
  grep: enable recurse-submodules to work on <tree> objects
  grep: optionally recurse into submodules
  grep: add submodules as a grep source type
  submodules: load gitmodules file from commit sha1
  submodules: add helper to determine if a submodule is initialized
  submodules: add helper to determine if a submodule is populated
  real_path: canonicalize directory separators in root parts
  real_path: have callers use real_pathdup and strbuf_realpath
  real_path: create real_pathdup
  real_path: convert real_path_internal to strbuf_realpath
  real_path: resolve symlinks by hand
2017-01-18 15:12:11 -08:00
Junio C Hamano
9d540e9726 Merge branch 'bw/transport-protocol-policy'
Finer-grained control of what protocols are allowed for transports
during clone/fetch/push have been enabled via a new configuration
mechanism.

* bw/transport-protocol-policy:
  http: respect protocol.*.allow=user for http-alternates
  transport: add from_user parameter to is_transport_allowed
  http: create function to get curl allowed protocols
  transport: add protocol policy config option
  http: always warn if libcurl version is too old
  lib-proto-disable: variable name fix
2016-12-27 00:11:41 -08:00
Brandon Williams
225e8bf778 push: add option to push only submodules
Teach push the --recurse-submodules=only option.  This enables push
to recursively push all unpushed submodules while leaving the
superproject unpushed.

This is a desirable feature in a scenario where updates to the
superproject are handled automatically by some other means, perhaps
a tool like Gerrit code review.  In this scenario, a developer could
make a change which spans multiple submodules and then push their
commits for code review.  Upon completion of the code review, their
commits can be accepted and applied to their respective submodules
while the code review tool can then automatically update the
superproject to the most recent SHA1 of each submodule.  This would
reduce the merge conflicts in the superproject that could occur if
multiple people are contributing to the same submodule.

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-20 12:26:34 -08:00
Junio C Hamano
12cf1135df Merge branch 'bw/push-dry-run'
"git push --dry-run --recurse-submodule=on-demand" wasn't
"--dry-run" in the submodules.

* bw/push-dry-run:
  push: fix --dry-run to not push submodules
  push: --dry-run updates submodules when --recurse-submodules=on-demand
2016-12-16 15:27:48 -08:00
Junio C Hamano
af952dac7a Merge branch 'hv/submodule-not-yet-pushed-fix'
The code in "git push" to compute if any commit being pushed in the
superproject binds a commit in a submodule that hasn't been pushed
out was overly inefficient, making it unusable even for a small
project that does not have any submodule but have a reasonable
number of refs.

* hv/submodule-not-yet-pushed-fix:
  submodule_needs_pushing(): explain the behaviour when we cannot answer
  batch check whether submodule needs pushing into one call
  serialize collection of refs that contain submodule changes
  serialize collection of changed submodules
2016-12-16 15:27:47 -08:00
Brandon Williams
a768a02265 transport: add from_user parameter to is_transport_allowed
Add a from_user parameter to is_transport_allowed() to allow http to be
able to distinguish between protocol restrictions for redirects versus
initial requests.  CURLOPT_REDIR_PROTOCOLS can now be set differently
from CURLOPT_PROTOCOLS to disallow use of protocols with the "user"
policy in redirects.

This change allows callers to query if a transport protocol is allowed,
given that the caller knows that the protocol is coming from the user
(1) or not from the user (0) such as redirects in libcurl.  If unknown a
-1 should be provided which falls back to reading
`GIT_PROTOCOL_FROM_USER` to determine if the protocol came from the
user.

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-15 09:29:13 -08:00
Brandon Williams
f1762d772e transport: add protocol policy config option
Previously the `GIT_ALLOW_PROTOCOL` environment variable was used to
specify a whitelist of protocols to be used in clone/fetch/push
commands.  This patch introduces new configuration options for more
fine-grained control for allowing/disallowing protocols.  This also has
the added benefit of allowing easier construction of a protocol
whitelist on systems where setting an environment variable is
non-trivial.

Now users can specify a policy to be used for each type of protocol via
the 'protocol.<name>.allow' config option.  A default policy for all
unconfigured protocols can be set with the 'protocol.allow' config
option.  If no user configured default is made git will allow known-safe
protocols (http, https, git, ssh, file), disallow known-dangerous
protocols (ext), and have a default policy of `user` for all other
protocols.

The supported policies are `always`, `never`, and `user`.  The `user`
policy can be used to configure a protocol to be usable when explicitly
used by a user, while disallowing it for commands which run
clone/fetch/push commands without direct user intervention (e.g.
recursive initialization of submodules).  Commands which can potentially
clone/fetch/push from untrusted repositories without user intervention
can export `GIT_PROTOCOL_FROM_USER` with a value of '0' to prevent
protocols configured to the `user` policy from being used.

Fix remote-ext tests to use the new config to allow the ext
protocol to be tested.

Based on a patch by Jeff King <peff@peff.net>

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-15 09:29:13 -08:00
Brandon Williams
f962ddf6ed http: always warn if libcurl version is too old
Always warn if libcurl version is too old because:

1. Even without a protocol whitelist, newer versions of curl have all
   non-standard protocols disabled by default.
2. A future patch will introduce default "known-good" and "known-bad"
   protocols which are allowed/disallowed by 'is_transport_allowed'
   which older version of libcurl can't respect.

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-15 09:28:37 -08:00
Brandon Williams
4ac9006f83 real_path: have callers use real_pathdup and strbuf_realpath
Migrate callers of real_path() who duplicate the retern value to use
real_pathdup or strbuf_realpath.

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-12 15:22:32 -08:00
Brandon Williams
0301c821c5 push: fix --dry-run to not push submodules
Teach push to respect the --dry-run option when configured to
recursively push submodules 'on-demand'.  This is done by passing the
--dry-run flag to the child process which performs a push for a
submodules when performing a dry-run.

In order to preserve good user experience, the additional check for
unpushed submodules is skipped during a dry-run when
--recurse-submodules=on-demand.  The check is skipped because the submodule
pushes were performed as dry-runs and this check would always fail as the
submodules would still need to be pushed.

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-11-23 08:39:14 -08:00
Heiko Voigt
9cfa1c260f serialize collection of refs that contain submodule changes
We are iterating over each pushed ref and want to check whether it
contains changes to submodules. Instead of immediately checking each ref
lets first collect them and then do the check for all of them in one
revision walk.

Signed-off-by: Heiko Voigt <hvoigt@hvoigt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-11-16 11:12:50 -08:00
Junio C Hamano
f9db0c055c Merge branch 'jc/abbrev-auto'
"git push" and "git fetch" reports from what old object to what new
object each ref was updated, using abbreviated refnames, and they
attempt to align the columns for this and other pieces of
information.  The way these codepaths compute how many display
columns to allocate for the object names portion of this output has
been updated to match the recent "auto scale the default
abbreviation length" change.

* jc/abbrev-auto:
  transport: compute summary-width dynamically
  transport: allow summary-width to be computed dynamically
  fetch: pass summary_width down the callchain
  transport: pass summary_width down the callchain
2016-10-27 14:58:48 -07:00
Junio C Hamano
db98d9bafa transport: compute summary-width dynamically
Now all that is left to do is to actually iterate over the refs
and measure the display width needed to show their abbreviation.

Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-10-22 09:37:29 -07:00
Junio C Hamano
11fd66de9b transport: allow summary-width to be computed dynamically
Now we have identified three callchains that have a set of refs that
they want to show their <old, new> object names in an aligned output,
we can replace their reference to the constant TRANSPORT_SUMMARY_WIDTH
with a helper function call to transport_summary_width() that takes
the set of ref as a parameter.  This step does not yet iterate over
the refs and compute, which is left as an exercise to the readers.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-10-21 15:28:07 -07:00
Junio C Hamano
7101e10ce7 transport: pass summary_width down the callchain
The callchain that originates at transport_print_push_status()
eventually hits a single leaf function, print_ref_status(), that is
used to show from what old object to what new object a ref got
updated, and the width of the part that shows old and new object
names used a constant TRANSPORT_SUMMARY_WIDTH.

Teach the callchain to pass the width down from the top instead.
This allows a future enhancement to compute the necessary display
width before calling down this callchain.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-10-21 14:39:41 -07:00
Junio C Hamano
dec040192f Merge branch 'jk/alt-odb-cleanup'
Codepaths involved in interacting alternate object store have
been cleaned up.

* jk/alt-odb-cleanup:
  alternates: use fspathcmp to detect duplicates
  sha1_file: always allow relative paths to alternates
  count-objects: report alternates via verbose mode
  fill_sha1_file: write into a strbuf
  alternates: store scratch buffer as strbuf
  fill_sha1_file: write "boring" characters
  alternates: use a separate scratch space
  alternates: encapsulate alt->base munging
  alternates: provide helper for allocating alternate
  alternates: provide helper for adding to alternates list
  link_alt_odb_entry: refactor string handling
  link_alt_odb_entry: handle normalize_path errors
  t5613: clarify "too deep" recursion tests
  t5613: do not chdir in main process
  t5613: whitespace/style cleanups
  t5613: use test_must_fail
  t5613: drop test_valid_repo function
  t5613: drop reachable_via function
2016-10-17 13:25:20 -07:00
Junio C Hamano
a460ea4a3c Merge branch 'nd/shallow-deepen'
The existing "git fetch --depth=<n>" option was hard to use
correctly when making the history of an existing shallow clone
deeper.  A new option, "--deepen=<n>", has been added to make this
easier to use.  "git clone" also learned "--shallow-since=<date>"
and "--shallow-exclude=<tag>" options to make it easier to specify
"I am interested only in the recent N months worth of history" and
"Give me only the history since that version".

* nd/shallow-deepen: (27 commits)
  fetch, upload-pack: --deepen=N extends shallow boundary by N commits
  upload-pack: add get_reachable_list()
  upload-pack: split check_unreachable() in two, prep for get_reachable_list()
  t5500, t5539: tests for shallow depth excluding a ref
  clone: define shallow clone boundary with --shallow-exclude
  fetch: define shallow boundary with --shallow-exclude
  upload-pack: support define shallow boundary by excluding revisions
  refs: add expand_ref()
  t5500, t5539: tests for shallow depth since a specific date
  clone: define shallow clone boundary based on time with --shallow-since
  fetch: define shallow boundary with --shallow-since
  upload-pack: add deepen-since to cut shallow repos based on time
  shallow.c: implement a generic shallow boundary finder based on rev-list
  fetch-pack: use a separate flag for fetch in deepening mode
  fetch-pack.c: mark strings for translating
  fetch-pack: use a common function for verbose printing
  fetch-pack: use skip_prefix() instead of starts_with()
  upload-pack: move rev-list code out of check_non_tip()
  upload-pack: make check_non_tip() clean things up on error
  upload-pack: tighten number parsing at "deepen" lines
  ...
2016-10-10 14:03:50 -07:00
Jeff King
597f9134de alternates: use a separate scratch space
The alternate_object_database struct uses a single buffer
both for storing the path to the alternate, and as a scratch
buffer for forming object names. This is efficient (since
otherwise we'd end up storing the path twice), but it makes
life hard for callers who just want to know the path to the
alternate. They have to remember to stop reading after
"alt->name - alt->base" bytes, and to subtract one for the
trailing '/'.

It would be much simpler if they could simply access a
NUL-terminated path string. We could encapsulate this in a
function which puts a NUL in the scratch buffer and returns
the string, but that opens up questions about the lifetime
of the result. The first time another caller uses the
alternate, the scratch buffer may get other data tacked onto
it.

Let's instead just store the root path separately from the
scratch buffer. There aren't enough alternates being stored
for the duplicated data to matter for performance, and this
keeps things simple and safe for the callers.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-10-10 13:52:36 -07:00
Junio C Hamano
5e469ab66c Merge branch 'rs/use-strbuf-add-unique-abbrev' into maint
A small code clean-up.

* rs/use-strbuf-add-unique-abbrev:
  use strbuf_add_unique_abbrev() for adding short hashes
2016-09-08 21:36:00 -07:00
Stefan Beller
5cb5fe4ae0 transport: report missing submodule pushes consistently on stderr
The surrounding advice is printed to stderr, but the list of submodules
is not. Make the report consistent by reporting everything to stderr.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-08 13:28:15 -07:00
Junio C Hamano
0a315befa7 Merge branch 'rs/use-strbuf-add-unique-abbrev'
A small code clean-up.

* rs/use-strbuf-add-unique-abbrev:
  use strbuf_add_unique_abbrev() for adding short hashes
2016-08-12 09:47:37 -07:00
Junio C Hamano
1a5f1a3f25 Merge branch 'js/am-3-merge-recursive-direct'
"git am -3" calls "git merge-recursive" when it needs to fall back
to a three-way merge; this call has been turned into an internal
subroutine call instead of spawning a separate subprocess.

* js/am-3-merge-recursive-direct:
  merge-recursive: flush output buffer even when erroring out
  merge_trees(): ensure that the callers release output buffer
  merge-recursive: offer an option to retain the output in 'obuf'
  merge-recursive: write the commit title in one go
  merge-recursive: flush output buffer before printing error messages
  am -3: use merge_recursive() directly again
  merge-recursive: switch to returning errors instead of dying
  merge-recursive: handle return values indicating errors
  merge-recursive: allow write_tree_from_memory() to error out
  merge-recursive: avoid returning a wholesale struct
  merge_recursive: abort properly upon errors
  prepare the builtins for a libified merge_recursive()
  merge-recursive: clarify code in was_tracked()
  die(_("BUG")): avoid translating bug messages
  die("bug"): report bugs consistently
  t5520: verify that `pull --rebase` shows the helpful advice when failing
2016-08-10 12:33:20 -07:00
Junio C Hamano
71076e11cd Merge branch 'jk/push-scrub-url' into maint
"git fetch http://user:pass@host/repo..." scrubbed the userinfo
part, but "git push" didn't.

* jk/push-scrub-url:
  t5541: fix url scrubbing test when GPG is not set
  push: anonymize URL in status output
2016-08-08 14:21:34 -07:00
René Scharfe
1eb47f167d use strbuf_add_unique_abbrev() for adding short hashes
Call strbuf_add_unique_abbrev() to add abbreviated hashes to strbufs
instead of taking detours through find_unique_abbrev() and its static
buffer.  This is shorter and a bit more efficient.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-08-06 10:33:57 -07:00
Junio C Hamano
cf27c7996e Merge branch 'sb/push-options'
"git push" learned to accept and pass extra options to the
receiving end so that hooks can read and react to them.

* sb/push-options:
  add a test for push options
  push: accept push options
  receive-pack: implement advertising and receiving push options
  push options: {pre,post}-receive hook learns about push options
2016-08-03 15:10:24 -07:00
Johannes Schindelin
ef1177d18e die("bug"): report bugs consistently
The vast majority of error messages in Git's source code which report a
bug use the convention to prefix the message with "BUG:".

As part of cleaning up merge-recursive to stop die()ing except in case of
detected bugs, let's just make the remainder of the bug reports consistent
with the de facto rule.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-26 11:13:44 -07:00
Junio C Hamano
0d54ad9cd4 Merge branch 'jk/push-scrub-url'
"git fetch http://user:pass@host/repo..." scrubbed the userinfo
part, but "git push" didn't.

* jk/push-scrub-url:
  t5541: fix url scrubbing test when GPG is not set
  push: anonymize URL in status output
2016-07-25 14:13:43 -07:00
Stefan Beller
f6a4e61fbb push: accept push options
This implements everything that is required on the client side to make use
of push options from the porcelain push command.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-14 15:50:41 -07:00
Jeff King
882d49ca5c push: anonymize URL in status output
Commit 47abd85 (fetch: Strip usernames from url's before
storing them, 2009-04-17) taught fetch to anonymize URLs.
The primary purpose there was to avoid sticking passwords in
merge-commit messages, but as a side effect, we also avoid
printing them to stderr.

The push side does not have the merge-commit problem, but it
probably should avoid printing them to stderr. We can reuse
the same anonymizing function.

Note that for this to come up, the credentials would have to
appear either on the command line or in a git config file,
neither of which is particularly secure. So people _should_
be switching to using credential helpers instead, which
makes this problem go away. But that's no excuse not to
improve the situation for people who for whatever reason end
up using credentials embedded in the URL.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-14 09:23:20 -07:00
Vasco Almeida
7ab1d44f33 i18n: transport: mark strings for translation
Mark one printf string and one error string for translation.

Signed-off-by: Vasco Almeida <vascomalmeida@sapo.pt>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-17 15:45:48 -07:00
Nguyễn Thái Ngọc Duy
cccf74e2da fetch, upload-pack: --deepen=N extends shallow boundary by N commits
In git-fetch, --depth argument is always relative with the latest
remote refs. This makes it a bit difficult to cover this use case,
where the user wants to make the shallow history, say 3 levels
deeper. It would work if remote refs have not moved yet, but nobody
can guarantee that, especially when that use case is performed a
couple months after the last clone or "git fetch --depth". Also,
modifying shallow boundary using --depth does not work well with
clones created by --since or --not.

This patch fixes that. A new argument --deepen=<N> will add <N> more (*)
parent commits to the current history regardless of where remote refs
are.

Have/Want negotiation is still respected. So if remote refs move, the
server will send two chunks: one between "have" and "want" and another
to extend shallow history. In theory, the client could send no "want"s
in order to get the second chunk only. But the protocol does not allow
that. Either you send no want lines, which means ls-remote; or you
have to send at least one want line that carries deep-relative to the
server..

The main work was done by Dongcan Jiang. I fixed it up here and there.
And of course all the bugs belong to me.

(*) We could even support --deepen=<N> where <N> is negative. In that
case we can cut some history from the shallow clone. This operation
(and --depth=<shorter depth>) does not require interaction with remote
side (and more complicated to implement as a result).

Helped-by: Duy Nguyen <pclouds@gmail.com>
Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Dongcan Jiang <dongcan.jiang@gmail.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-13 14:38:16 -07:00
Nguyễn Thái Ngọc Duy
a45a260086 fetch: define shallow boundary with --shallow-exclude
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-13 14:38:16 -07:00
Nguyễn Thái Ngọc Duy
508ea88226 fetch: define shallow boundary with --shallow-since
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-13 14:38:16 -07:00
Junio C Hamano
9e689802e3 Merge branch 'cn/deprecate-ssh-git-url'
The two alternative ways to spell "ssh://" transport have been
deprecated for a long time.  The last mention of them has finally
removed from the documentation.

* cn/deprecate-ssh-git-url:
  Disown ssh+git and git+ssh
2016-03-16 13:16:40 -07:00
Carlos Martín Nieto
07c7782cc8 Disown ssh+git and git+ssh
Some people argue that these were silly from the beginning (see
http://thread.gmane.org/gmane.comp.version-control.git/285590/focus=285601
for example), but we have to support them for compatibility.

That doesn't mean we have to show them in the documentation.  These
were already left out of the main list, but a reference in the main
manpage was left, so remove that.

Also add a note to discourage their use if anybody goes looking for them
in the source code.

Signed-off-by: Carlos Martín Nieto <cmn@dwim.me>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-03-09 13:54:38 -08:00
Junio C Hamano
11529ecec9 Merge branch 'jk/tighten-alloc'
Update various codepaths to avoid manually-counted malloc().

* jk/tighten-alloc: (22 commits)
  ewah: convert to REALLOC_ARRAY, etc
  convert ewah/bitmap code to use xmalloc
  diff_populate_gitlink: use a strbuf
  transport_anonymize_url: use xstrfmt
  git-compat-util: drop mempcpy compat code
  sequencer: simplify memory allocation of get_message
  test-path-utils: fix normalize_path_copy output buffer size
  fetch-pack: simplify add_sought_entry
  fast-import: simplify allocation in start_packfile
  write_untracked_extension: use FLEX_ALLOC helper
  prepare_{git,shell}_cmd: use argv_array
  use st_add and st_mult for allocation size computation
  convert trivial cases to FLEX_ARRAY macros
  use xmallocz to avoid size arithmetic
  convert trivial cases to ALLOC_ARRAY
  convert manual allocations to argv_array
  argv-array: add detach function
  add helpers for allocating flex-array structs
  harden REALLOC_ARRAY and xcalloc against size_t overflow
  tree-diff: catch integer overflow in combine_diff_path allocation
  ...
2016-02-26 13:37:16 -08:00
Junio C Hamano
e84d5e9fa1 Merge branch 'ew/force-ipv4'
"git fetch" and friends that make network connections can now be
told to only use ipv4 (or ipv6).

* ew/force-ipv4:
  connect & http: support -4 and -6 switches for remote operations
2016-02-24 13:25:54 -08:00
Jeff King
21f9d0f6f2 transport_anonymize_url: use xstrfmt
This function uses xcalloc and two memcpy calls to
concatenate two strings. We can do this as an xstrfmt
one-liner, and then it is more clear that we are allocating
the correct amount of memory.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-02-22 14:51:09 -08:00
Jeff King
b32fa95fd8 convert trivial cases to ALLOC_ARRAY
Each of these cases can be converted to use ALLOC_ARRAY or
REALLOC_ARRAY, which has two advantages:

  1. It automatically checks the array-size multiplication
     for overflow.

  2. It always uses sizeof(*array) for the element-size,
     so that it can never go out of sync with the declared
     type of the array.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-02-22 14:51:09 -08:00
Junio C Hamano
9f03176ef6 Merge branch 'jk/drop-rsync-transport'
It turns out "git clone" over rsync transport has been broken when
the source repository has packed references for a long time, and
nobody noticed nor complained about it.

* jk/drop-rsync-transport:
  transport: drop support for git-over-rsync
2016-02-17 10:13:28 -08:00
Eric Wong
c915f11eb4 connect & http: support -4 and -6 switches for remote operations
Sometimes it is necessary to force IPv4-only or IPv6-only operation
on networks where name lookups may return a non-routable address and
stall remote operations.

The ssh(1) command has an equivalent switches which we may pass when
we run them.  There may be old ssh(1) implementations out there
which do not support these switches; they should report the
appropriate error in that case.

rsync support is untouched for now since it is deprecated and
scheduled to be removed.

Signed-off-by: Eric Wong <normalperson@yhbt.net>
Reviewed-by: Torsten Bögershausen <tboegi@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-02-12 11:34:14 -08:00
Jeff King
0d0bac67ce transport: drop support for git-over-rsync
The git-over-rsync protocol is inefficient and broken, and
has been for a long time. It transfers way more objects than
it needs (grabbing all of the remote's "objects/",
regardless of which objects we need). It does its own ad-hoc
parsing of loose and packed refs from the remote, but
doesn't properly override packed refs with loose ones,
leading to garbage results (e.g., expecting the other side
to have an object pointed to by a stale packed-refs entry,
or complaining that the other side has two copies of the
refs[1]).

This latter breakage means that nobody could have
successfully pulled from a moderately active repository
since cd547b4 (fetch/push: readd rsync support, 2007-10-01).

We never made an official deprecation notice in the release
notes for git's rsync protocol, but the tutorial has marked
it as such since 914328a (Update tutorial., 2005-08-30).
And on the mailing list as far back as Oct 2005, we can find
Junio mentioning it as having "been deprecated for quite
some time."[2,3,4]. So it was old news then; cogito had
deprecated the transport in July of 2005[5] (though it did
come back briefly when Linus broke git-http-pull!).

Of course some people professed their love of rsync through
2006, but Linus clarified in his usual gentle manner[6]:

  > Thanks!  This is why I still use rsync, even though
  > everybody and their mother tells me "Linus says rsync is
  > deprecated."

  No. You're using rsync because you're actively doing
  something _wrong_.

The deprecation sentiment was reinforced in 2008, with a
mention that cloning via rsync is broken (with no fix)[7].

Even the commit porting rsync over to C from shell (cd547b4)
lists it as deprecated! So between the 10 years of informal
warnings, and the fact that it has been severely broken
since 2007, it's probably safe to simply remove it without
further deprecation warnings.

[1] http://article.gmane.org/gmane.comp.version-control.git/285101
[2] http://article.gmane.org/gmane.comp.version-control.git/10093
[3] http://article.gmane.org/gmane.comp.version-control.git/17734
[4] http://article.gmane.org/gmane.comp.version-control.git/18911
[5] http://article.gmane.org/gmane.comp.version-control.git/5617
[6] http://article.gmane.org/gmane.comp.version-control.git/19354
[7] http://article.gmane.org/gmane.comp.version-control.git/103635

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-02-01 13:07:41 -08:00
Eric Wong
f3ee9ca53b pass transport verbosity down to git_connect
While working in connect.c to perform non-blocking connections,
I noticed calling "git fetch -v" was not causing the progress
messages inside git_tcp_connect_sock to be emitted as I
expected.

Looking at history, it seems connect_setup has never been called
with the verbose parameter.  Since transport already has a
"verbose" field, use that field instead of another parameter
in connect_setup.

Signed-off-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-01-28 15:43:08 -08:00
Junio C Hamano
844a9ce472 Merge branch 'bc/object-id'
More transition from "unsigned char[40]" to "struct object_id".

This needed a few merge fixups, but is mostly disentangled from other
topics.

* bc/object-id:
  remote: convert functions to struct object_id
  Remove get_object_hash.
  Convert struct object to object_id
  Add several uses of get_object_hash.
  object: introduce get_object_hash macro.
  ref_newer: convert to use struct object_id
  push_refs_with_export: convert to struct object_id
  get_remote_heads: convert to struct object_id
  parse_fetch: convert to use struct object_id
  add_sought_entry_mem: convert to struct object_id
  Convert struct ref to use object_id.
  sha1_file: introduce has_object_file helper.
2015-12-10 12:36:13 -08:00
Jeff King
40fdcc5357 Merge branch 'maint'
* maint:
  http: treat config options sslCAPath and sslCAInfo as paths
  Documentation/diff: give --word-diff-regex=. example
  filter-branch: deal with object name vs. pathname ambiguity in tree-filter
  check-ignore: correct documentation about output
  git-p4: clean up after p4 submit failure
  git-p4: work with a detached head
  git-p4: add option to system() to return subshell status
  git-p4: add failing test for submit from detached head
  remote-http(s): support SOCKS proxies
  t5813: avoid creating urls that break on cygwin
  Escape Git's exec path in contrib/rerere-train.sh script
  allow hooks to ignore their standard input stream
  rebase-i-exec: Allow space in SHELL_PATH
  Documentation: make environment variable formatting more consistent
2015-12-01 17:32:38 -05:00
brian m. carlson
f4e54d02b8 Convert struct ref to use object_id.
Use struct object_id in three fields in struct ref and convert all the
necessary places that use it.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Jeff King <peff@peff.net>
2015-11-20 08:02:05 -05:00
Clemens Buchacher
af65f68cdf allow hooks to ignore their standard input stream
Since ec7dbd145 (receive-pack: allow hooks to ignore its
standard input stream) the pre-receive and post-receive
hooks ignore SIGPIPE. Do the same for the remaining hooks
pre-push and post-rewrite, which read from standard input.
The same arguments for ignoring SIGPIPE apply.

Include test by Jeff King which checks that SIGPIPE does not
cause pre-push hook failure. With the use of git update-ref
--stdin it is fast enough to be enabled by default.

Signed-off-by: Clemens Buchacher <clemens.buchacher@intel.com>
Signed-off-by: Jeff King <peff@peff.net>
2015-11-16 08:59:19 -05:00
Junio C Hamano
78891795df Merge branch 'jk/war-on-sprintf'
Many allocations that is manually counted (correctly) that are
followed by strcpy/sprintf have been replaced with a less error
prone constructs such as xstrfmt.

Macintosh-specific breakage was noticed and corrected in this
reroll.

* jk/war-on-sprintf: (70 commits)
  name-rev: use strip_suffix to avoid magic numbers
  use strbuf_complete to conditionally append slash
  fsck: use for_each_loose_file_in_objdir
  Makefile: drop D_INO_IN_DIRENT build knob
  fsck: drop inode-sorting code
  convert strncpy to memcpy
  notes: document length of fanout path with a constant
  color: add color_set helper for copying raw colors
  prefer memcpy to strcpy
  help: clean up kfmclient munging
  receive-pack: simplify keep_arg computation
  avoid sprintf and strcpy with flex arrays
  use alloc_ref rather than hand-allocating "struct ref"
  color: add overflow checks for parsing colors
  drop strcpy in favor of raw sha1_to_hex
  use sha1_to_hex_r() instead of strcpy
  daemon: use cld->env_array when re-spawning
  stat_tracking_info: convert to argv_array
  http-push: use an argv_array for setup_revisions
  fetch-pack: use argv_array for index-pack / unpack-objects
  ...
2015-10-20 15:24:01 -07:00
Jeff King
bd22d4ffbc transport: use strbufs for status table "quickref" strings
We generate range strings like "1234abcd...5678efab" for use
in the the fetch and push status tables. We use fixed-size
buffers along with strcat to do so. These aren't buggy, as
our manual size computation is correct, but there's nothing
checking that this is so.  Let's switch them to strbufs
instead, which are obviously correct, and make it easier to
audit the code base for problematic calls to strcat().

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-10-05 11:08:04 -07:00