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2019-02-22trace2:data: add trace2 transport child classificationLibravatar Jeff Hostetler1-0/+2
Add trace2 child classification for transport processes. Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-02-05Merge branch 'js/filter-options-should-use-plain-int'Libravatar Junio C Hamano1-4/+9
Update the protocol message specification to allow only the limited use of scaled quantities. This is ensure potential compatibility issues will not go out of hand. * js/filter-options-should-use-plain-int: filter-options: expand scaled numbers tree:<depth>: skip some trees even when collecting omits list-objects-filter: teach tree:# how to handle >0
2019-01-18Merge branch 'rb/hpe'Libravatar Junio C Hamano1-4/+3
Portability updates for the HPE NonStop platform. * rb/hpe: compat/regex/regcomp.c: define intptr_t and uintptr_t on NonStop git-compat-util.h: add FLOSS headers for HPE NonStop config.mak.uname: support for modern HPE NonStop config. transport-helper: drop read/write errno checks transport-helper: use xread instead of read
2019-01-15filter-options: expand scaled numbersLibravatar Josh Steadmon1-4/+9
When communicating with a remote server or a subprocess, use expanded numbers rather than numbers with scaling suffix in the object filter spec (e.g. "limit:blob=1k" becomes "limit:blob=1024"). Update the protocol docs to note that clients should always perform this expansion, to allow for more compatibility between server implementations. Signed-off-by: Josh Steadmon <steadmon@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-01-03transport-helper: drop read/write errno checksLibravatar Jeff King1-3/+2
Since we use xread() and xwrite() here, EINTR, EAGAIN, and EWOULDBLOCK retries are already handled for us, and we will never see these errno values ourselves. We can drop these conditions entirely, making the code easier to follow. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-01-03transport-helper: use xread instead of readLibravatar Randall S. Becker1-1/+1
This fix was needed on HPE NonStop NSE and NSX where SSIZE_MAX is less than BUFFERSIZE resulting in EINVAL. The call to read in transport-helper.c was the only place outside of wrapper.c where it is used instead of xread. Signed-off-by: Randall S. Becker <rsbecker@nexbridge.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-12-10style: the opening '{' of a function is in a separate lineLibravatar Nguyễn Thái Ngọc Duy1-1/+2
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-11-29Merge branch 'nd/n18n-fix'Libravatar Junio C Hamano1-1/+1
* nd/n18n-fix: transport-helper.c: do not translate a string twice
2018-11-29transport-helper.c: do not translate a string twiceLibravatar Nguyễn Thái Ngọc Duy1-1/+1
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-07transport: list refs before fetch if necessaryLibravatar Jonathan Tan1-0/+1
The built-in bundle transport and the transport helper interface do not work when transport_fetch_refs() is called immediately after transport creation. This will be needed in a subsequent patch, so fix this. Evidence: fetch_refs_from_bundle() relies on data->header being initialized in get_refs_from_bundle(), and fetch() in transport-helper.c relies on either data->fetch or data->import being set by get_helper(), but neither transport_helper_init() nor fetch() calls get_helper(). Up until the introduction of the partial clone feature, this has not been a problem, because transport_fetch_refs() is always called after transport_get_remote_refs(). With the introduction of the partial clone feature, which involves calling transport_fetch_refs() (to fetch objects by their OIDs) without transport_get_remote_refs(), this is still not a problem, but only coincidentally - we do not support partially cloning a bundle, and as for cloning using a transport-helper-using protocol, it so happens that before transport_fetch_refs() is called, fetch_refs() in fetch-object.c calls transport_set_option(), which means that the aforementioned get_helper() is invoked through set_helper_option() in transport-helper.c. This could be fixed by fixing the transports themselves, but it doesn't seem like a good idea to me to open up previously untested code paths; also, there may be transport helpers in the wild that assume that "list" is always called before "fetch". Instead, fix this by having transport_fetch_refs() call transport_get_remote_refs() to ensure that the latter is always called at least once, unless the transport explicitly states that it supports fetching without listing refs. Signed-off-by: Jonathan Tan <jonathantanmy@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-08-15Merge branch 'jt/connectivity-check-after-unshallow'Libravatar Junio C Hamano1-4/+2
"git fetch" sometimes failed to update the remote-tracking refs, which has been corrected. * jt/connectivity-check-after-unshallow: fetch-pack: unify ref in and out param
2018-08-15Merge branch 'nd/i18n'Libravatar Junio C Hamano1-44/+45
Many more strings are prepared for l10n. * nd/i18n: (23 commits) transport-helper.c: mark more strings for translation transport.c: mark more strings for translation sha1-file.c: mark more strings for translation sequencer.c: mark more strings for translation replace-object.c: mark more strings for translation refspec.c: mark more strings for translation refs.c: mark more strings for translation pkt-line.c: mark more strings for translation object.c: mark more strings for translation exec-cmd.c: mark more strings for translation environment.c: mark more strings for translation dir.c: mark more strings for translation convert.c: mark more strings for translation connect.c: mark more strings for translation config.c: mark more strings for translation commit-graph.c: mark more strings for translation builtin/replace.c: mark more strings for translation builtin/pack-objects.c: mark more strings for translation builtin/grep.c: mark strings for translation builtin/config.c: mark more strings for translation ...
2018-08-02Merge branch 'jt/fetch-nego-tip'Libravatar Junio C Hamano1-0/+3
"git fetch" learned a new option "--negotiation-tip" to limit the set of commits it tells the other end as "have", to reduce wasted bandwidth and cycles, which would be helpful when the receiving repository has a lot of refs that have little to do with the history at the remote it is fetching from. * jt/fetch-nego-tip: fetch-pack: support negotiation tip whitelist
2018-08-01fetch-pack: unify ref in and out paramLibravatar Jonathan Tan1-4/+2
When a user fetches: - at least one up-to-date ref and at least one non-up-to-date ref, - using HTTP with protocol v0 (or something else that uses the fetch command of a remote helper) some refs might not be updated after the fetch. This bug was introduced in commit 989b8c4452 ("fetch-pack: put shallow info in output parameter", 2018-06-28) which allowed transports to report the refs that they have fetched in a new out-parameter "fetched_refs". If they do so, transport_fetch_refs() makes this information available to its caller. Users of "fetched_refs" rely on the following 3 properties: (1) it is the complete list of refs that was passed to transport_fetch_refs(), (2) it has shallow information (REF_STATUS_REJECT_SHALLOW set if relevant), and (3) it has updated OIDs if ref-in-want was used (introduced after 989b8c4452). In an effort to satisfy (1), whenever transport_fetch_refs() filters the refs sent to the transport, it re-adds the filtered refs to whatever the transport supplies before returning it to the user. However, the implementation in 989b8c4452 unconditionally re-adds the filtered refs without checking if the transport refrained from reporting anything in "fetched_refs" (which it is allowed to do), resulting in an incomplete list, no longer satisfying (1). An earlier effort to resolve this [1] solved the issue by readding the filtered refs only if the transport did not refrain from reporting in "fetched_refs", but after further discussion, it seems that the better solution is to revert the API change that introduced "fetched_refs". This API change was first suggested as part of a ref-in-want implementation that allowed for ref patterns and, thus, there could be drastic differences between the input refs and the refs actually fetched [2]; we eventually decided to only allow exact ref names, but this API change remained even though its necessity was decreased. Therefore, revert this API change by reverting commit 989b8c4452, and make receive_wanted_refs() update the OIDs in the sought array (like how update_shallow() updates shallow information in the sought array) instead. A test is also included to show that the user-visible bug discussed at the beginning of this commit message no longer exists. [1] https://public-inbox.org/git/20180801171806.GA122458@google.com/ [2] https://public-inbox.org/git/86a128c5fb710a41791e7183207c4d64889f9307.1485381677.git.jonathantanmy@google.com/ Signed-off-by: Jonathan Tan <jonathantanmy@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-23transport-helper.c: mark more strings for translationLibravatar Nguyễn Thái Ngọc Duy1-43/+44
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-23Update messages in preparation for i18nLibravatar Nguyễn Thái Ngọc Duy1-24/+24
Many messages will be marked for translation in the following commits. This commit updates some of them to be more consistent and reduce diff noise in those commits. Changes are - keep the first letter of die(), error() and warning() in lowercase - no full stop in die(), error() or warning() if it's single sentence messages - indentation - some messages are turned to BUG(), or prefixed with "BUG:" and will not be marked for i18n - some messages are improved to give more information - some messages are broken down by sentence to be i18n friendly (on the same token, combine multiple warning() into one big string) - the trailing \n is converted to printf_ln if possible, or deleted if not redundant - errno_errno() is used instead of explicit strerror() Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-03fetch-pack: support negotiation tip whitelistLibravatar Jonathan Tan1-0/+3
During negotiation, fetch-pack eventually reports as "have" lines all commits reachable from all refs. Allow the user to restrict the commits sent in this way by providing a whitelist of tips; only the tips themselves and their ancestors will be sent. Both globs and single objects are supported. This feature is only supported for protocols that support connect or stateless-connect (such as HTTP with protocol v2). This will speed up negotiation when the repository has multiple relatively independent branches (for example, when a repository interacts with multiple repositories, such as with linux-next [1] and torvalds/linux [2]), and the user knows which local branch is likely to have commits in common with the upstream branch they are fetching. [1] https://kernel.googlesource.com/pub/scm/linux/kernel/git/next/linux-next/ [2] https://kernel.googlesource.com/pub/scm/linux/kernel/git/torvalds/linux/ Signed-off-by: Jonathan Tan <jonathantanmy@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-28fetch-pack: put shallow info in output parameterLibravatar Brandon Williams1-2/+4
Expand the transport fetch method signature, by adding an output parameter, to allow transports to return information about the refs they have fetched. Then communicate shallow status information through this mechanism instead of by modifying the input list of refs. This does require clients to sometimes generate the ref map twice: once from the list of refs provided by the remote (as is currently done) and potentially once from the new list of refs that the fetch mechanism provides. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-18remote: convert apply_refspecs to take a struct refspecLibravatar Brandon Williams1-3/+3
Convert 'apply_refspecs()' to take a 'struct refspec' as a parameter instead of a list of 'struct refspec_item'. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-18transport-helper: convert to use struct refspecLibravatar Brandon Williams1-26/+12
Convert the refspecs in transport-helper.c to be stored in a 'struct refspec'. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-18refspec: rename struct refspec to struct refspec_itemLibravatar Brandon Williams1-1/+1
In preparation for introducing an abstraction around a collection of refspecs (much like how a 'struct pathspec' is a collection of 'struct pathspec_item's) rename the existing 'struct refspec' to 'struct refspec_item'. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-18refspec: move refspec parsing logic into its own fileLibravatar Brandon Williams1-0/+1
In preparation for performing a refactor on refspec related code, move the refspec parsing logic into its own file. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-08Merge branch 'bw/protocol-v2'Libravatar Junio C Hamano1-33/+54
The beginning of the next-gen transfer protocol. * bw/protocol-v2: (35 commits) remote-curl: don't request v2 when pushing remote-curl: implement stateless-connect command http: eliminate "# service" line when using protocol v2 http: don't always add Git-Protocol header http: allow providing extra headers for http requests remote-curl: store the protocol version the server responded with remote-curl: create copy of the service name pkt-line: add packet_buf_write_len function transport-helper: introduce stateless-connect transport-helper: refactor process_connect_service transport-helper: remove name parameter connect: don't request v2 when pushing connect: refactor git_connect to only get the protocol version once fetch-pack: support shallow requests fetch-pack: perform a fetch using v2 upload-pack: introduce fetch server command push: pass ref prefixes when pushing fetch: pass ref prefixes when fetching ls-remote: pass ref prefixes when requesting a remote's refs transport: convert transport_get_remote_refs to take a list of ref prefixes ...
2018-03-15transport-helper: introduce stateless-connectLibravatar Brandon Williams1-0/+11
Introduce the transport-helper capability 'stateless-connect'. This capability indicates that the transport-helper can be requested to run the 'stateless-connect' command which should attempt to make a stateless connection with a remote end. Once established, the connection can be used by the git client to communicate with the remote end natively in a stateless-rpc manner as supported by protocol v2. This means that the client must send everything the server needs in a single request as the client must not assume any state-storing on the part of the server or transport. If a stateless connection cannot be established then the remote-helper will respond in the same manner as the 'connect' command indicating that the client should fallback to using the dumb remote-helper commands. A future patch will implement the 'stateless-connect' capability in our http remote-helper (remote-curl) so that protocol v2 can be used using the http transport. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-15transport-helper: refactor process_connect_serviceLibravatar Brandon Williams1-29/+38
A future patch will need to take advantage of the logic which runs and processes the response of the connect command on a remote helper so factor out this logic from 'process_connect_service()' and place it into a helper function 'run_connect()'. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-15transport-helper: remove name parameterLibravatar Brandon Williams1-3/+3
Commit 266f1fdfa (transport-helper: be quiet on read errors from helpers, 2013-06-21) removed a call to 'die()' which printed the name of the remote helper passed in to the 'recvline_fh()' function using the 'name' parameter. Once the call to 'die()' was removed the parameter was no longer necessary but wasn't removed. Clean up 'recvline_fh()' parameter list by removing the 'name' parameter. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-15transport: convert get_refs_list to take a list of ref prefixesLibravatar Brandon Williams1-2/+3
Convert the 'struct transport' virtual function 'get_refs_list()' to optionally take an argv_array of ref prefixes. When communicating with a server using protocol v2 these ref prefixes can be sent when requesting a listing of their refs allowing the server to filter the refs it sends based on the sent prefixes. This list will be ignored when not using protocol v2. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-02-13Merge branch 'jh/partial-clone'Libravatar Junio C Hamano1-0/+5
The machinery to clone & fetch, which in turn involves packing and unpacking objects, have been told how to omit certain objects using the filtering mechanism introduced by the jh/object-filtering topic, and also mark the resulting pack as a promisor pack to tolerate missing objects, taking advantage of the mechanism introduced by the jh/fsck-promisors topic. * jh/partial-clone: t5616: test bulk prefetch after partial fetch fetch: inherit filter-spec from partial clone t5616: end-to-end tests for partial clone fetch-pack: restore save_commit_buffer after use unpack-trees: batch fetching of missing blobs clone: partial clone partial-clone: define partial clone settings in config fetch: support filters fetch: refactor calculation of remote list fetch-pack: test support excluding large blobs fetch-pack: add --no-filter fetch-pack, index-pack, transport: partial clone upload-pack: add object filtering for partial clone
2017-12-28Merge branch 'jt/transport-hide-vtable'Libravatar Junio C Hamano1-9/+14
Code clean-up. * jt/transport-hide-vtable: transport: make transport vtable more private clone, fetch: remove redundant transport check
2017-12-27Merge branch 'rs/fmt-merge-msg-leakfix'Libravatar Junio C Hamano1-2/+5
Leakfix. * rs/fmt-merge-msg-leakfix: transport-helper: plug strbuf and string_list leaks
2017-12-14transport: make transport vtable more privateLibravatar Jonathan Tan1-9/+14
Move the definition of the transport-specific functions provided by transports, whether declared in transport.c or transport-helper.c, into an internal header. This means that transport-using code (as opposed to transport-declaring code) can no longer access these functions (without importing the internal header themselves), making it clear that they should use the transport_*() functions instead, and also allowing the interface between the transport mechanism and an individual transport to independently evolve. This is superficially a reversal of commit 824d5776c3f2 ("Refactor struct transport_ops inlined into struct transport", 2007-09-19). However, the scope of the involved variables was neither affected nor discussed in that commit, and I think that the advantages in making those functions more private outweigh the advantages described in that commit's commit message. A minor additional point is that the code has gotten more complicated since then, in that the function-pointer variables are potentially mutated twice (once initially and once if transport_take_over() is invoked), increasing the value of corralling them into their own struct. Signed-off-by: Jonathan Tan <jonathantanmy@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-08transport-helper: plug strbuf and string_list leaksLibravatar René Scharfe1-2/+5
Transfer ownership of detached strbufs to string_lists of the duplicating variety by calling string_list_append_nodup() instead of string_list_append() to avoid duplicating and then leaking the buffer. While at it make sure to release the string_list when done; push_refs_with_export() already does that. Reported-by: Jeff King <peff@peff.net> Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-08fetch-pack, index-pack, transport: partial cloneLibravatar Jeff Hostetler1-0/+5
Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-16refs: convert resolve_ref_unsafe to struct object_idLibravatar brian m. carlson1-4/+3
Convert resolve_ref_unsafe to take a pointer to struct object_id by converting one remaining caller to use struct object_id, removing the temporary NULL pointer check in expand_ref, converting the declaration and definition, and applying the following semantic patch: @@ expression E1, E2, E3, E4; @@ - resolve_ref_unsafe(E1, E2, E3.hash, E4) + resolve_ref_unsafe(E1, E2, &E3, E4) @@ expression E1, E2, E3, E4; @@ - resolve_ref_unsafe(E1, E2, E3->hash, E4) + resolve_ref_unsafe(E1, E2, E3, E4) Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-16refs: convert read_ref and read_ref_full to object_idLibravatar brian m. carlson1-3/+2
All but two of the call sites already have parameters using the hash parameter of struct object_id, so convert them to take a pointer to the struct directly. Also convert refs_read_refs_full, the underlying implementation. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-16refs: convert update_ref and refs_update_ref to use struct object_idLibravatar brian m. carlson1-1/+2
Convert update_ref, refs_update_ref, and write_pseudoref to use struct object_id. Update the existing callers as well. Remove update_ref_oid, as it is no longer needed. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-25Merge branch 'jk/write-in-full-fix'Libravatar Junio C Hamano1-3/+2
Many codepaths did not diagnose write failures correctly when disks go full, due to their misuse of write_in_full() helper function, which have been corrected. * jk/write-in-full-fix: read_pack_header: handle signed/unsigned comparison in read result config: flip return value of store_write_*() notes-merge: use ssize_t for write_in_full() return value pkt-line: check write_in_full() errors against "< 0" convert less-trivial versions of "write_in_full() != len" avoid "write_in_full(fd, buf, len) != len" pattern get-tar-commit-id: check write_in_full() return against 0 config: avoid "write_in_full(fd, buf, len) < len" pattern
2017-09-19Merge branch 'rs/strbuf-leakfix'Libravatar Junio C Hamano1-0/+1
Many leaks of strbuf have been fixed. * rs/strbuf-leakfix: (34 commits) wt-status: release strbuf after use in wt_longstatus_print_tracking() wt-status: release strbuf after use in read_rebase_todolist() vcs-svn: release strbuf after use in end_revision() utf8: release strbuf on error return in strbuf_utf8_replace() userdiff: release strbuf after use in userdiff_get_textconv() transport-helper: release strbuf after use in process_connect_service() sequencer: release strbuf after use in save_head() shortlog: release strbuf after use in insert_one_record() sha1_file: release strbuf on error return in index_path() send-pack: release strbuf on error return in send_pack() remote: release strbuf after use in set_url() remote: release strbuf after use in migrate_file() remote: release strbuf after use in read_remote_branches() refs: release strbuf on error return in write_pseudoref() notes: release strbuf after use in notes_copy_from_stdin() merge: release strbuf after use in write_merge_heads() merge: release strbuf after use in save_state() mailinfo: release strbuf on error return in handle_boundary() mailinfo: release strbuf after use in handle_from() help: release strbuf on error return in exec_woman_emacs() ...
2017-09-14avoid "write_in_full(fd, buf, len) != len" patternLibravatar Jeff King1-3/+2
The return value of write_in_full() is either "-1", or the requested number of bytes[1]. If we make a partial write before seeing an error, we still return -1, not a partial value. This goes back to f6aa66cb95 (write_in_full: really write in full or return error on disk full., 2007-01-11). So checking anything except "was the return value negative" is pointless. And there are a couple of reasons not to do so: 1. It can do a funny signed/unsigned comparison. If your "len" is signed (e.g., a size_t) then the compiler will promote the "-1" to its unsigned variant. This works out for "!= len" (unless you really were trying to write the maximum size_t bytes), but is a bug if you check "< len" (an example of which was fixed recently in config.c). We should avoid promoting the mental model that you need to check the length at all, so that new sites are not tempted to copy us. 2. Checking for a negative value is shorter to type, especially when the length is an expression. 3. Linus says so. In d34cf19b89 (Clean up write_in_full() users, 2007-01-11), right after the write_in_full() semantics were changed, he wrote: I really wish every "write_in_full()" user would just check against "<0" now, but this fixes the nasty and stupid ones. Appeals to authority aside, this makes it clear that writing it this way does not have an intentional benefit. It's a historical curiosity that we never bothered to clean up (and which was undoubtedly cargo-culted into new sites). So let's convert these obviously-correct cases (this includes write_str_in_full(), which is just a wrapper for write_in_full()). [1] A careful reader may notice there is one way that write_in_full() can return a different value. If we ask write() to write N bytes and get a return value that is _larger_ than N, we could return a larger total. But besides the fact that this would imply a totally broken version of write(), it would already invoke undefined behavior. Our internal remaining counter is an unsigned size_t, which means that subtracting too many byte will wrap it around to a very large number. So we'll instantly begin reading off the end of the buffer, trying to write gigabytes (or petabytes) of data. Signed-off-by: Jeff King <peff@peff.net> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-10Merge branch 'ma/ts-cleanups'Libravatar Junio C Hamano1-0/+7
Assorted bugfixes and clean-ups. * ma/ts-cleanups: ThreadSanitizer: add suppressions strbuf_setlen: don't write to strbuf_slopbuf pack-objects: take lock before accessing `remaining` convert: always initialize attr_action in convert_attrs
2017-09-07transport-helper: release strbuf after use in process_connect_service()Libravatar Rene Scharfe1-0/+1
Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-08-23ThreadSanitizer: add suppressionsLibravatar Martin Ågren1-0/+7
Add a file .tsan-suppressions and list two functions in it: want_color() and transfer_debug(). Both of these use the pattern static int foo = -1; if (foo < 0) foo = bar(); where bar always returns the same non-negative value. This can cause ThreadSanitizer to diagnose a race when foo is written from two threads. That is indeed a race, although it arguably doesn't matter in practice since it's always the same value that is written. Add NEEDSWORK-comments to the functions so that this problem is not forever swept way under the carpet. The suppressions-file is used by setting the environment variable TSAN_OPTIONS to, e.g., "suppressions=$(pwd)/.tsan-suppressions". Observe that relative paths such as ".tsan-suppressions" might not work. Signed-off-by: Martin Ågren <martin.agren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-07-17sha1_name: convert get_sha1* to get_oid*Libravatar brian m. carlson1-1/+1
Now that all the callers of get_sha1 directly or indirectly use struct object_id, rename the functions starting with get_sha1 to start with get_oid. Convert the internals in sha1_name.c to use struct object_id as well, and eliminate explicit length checks where possible. Convert a use of 40 in get_oid_basic to GIT_SHA1_HEXSZ. Outside of sha1_name.c and cache.h, this transition was made with the following semantic patch: @@ expression E1, E2; @@ - get_sha1(E1, E2.hash) + get_oid(E1, &E2) @@ expression E1, E2; @@ - get_sha1(E1, E2->hash) + get_oid(E1, E2) @@ expression E1, E2; @@ - get_sha1_committish(E1, E2.hash) + get_oid_committish(E1, &E2) @@ expression E1, E2; @@ - get_sha1_committish(E1, E2->hash) + get_oid_committish(E1, E2) @@ expression E1, E2; @@ - get_sha1_treeish(E1, E2.hash) + get_oid_treeish(E1, &E2) @@ expression E1, E2; @@ - get_sha1_treeish(E1, E2->hash) + get_oid_treeish(E1, E2) @@ expression E1, E2; @@ - get_sha1_commit(E1, E2.hash) + get_oid_commit(E1, &E2) @@ expression E1, E2; @@ - get_sha1_commit(E1, E2->hash) + get_oid_commit(E1, E2) @@ expression E1, E2; @@ - get_sha1_tree(E1, E2.hash) + get_oid_tree(E1, &E2) @@ expression E1, E2; @@ - get_sha1_tree(E1, E2->hash) + get_oid_tree(E1, E2) @@ expression E1, E2; @@ - get_sha1_blob(E1, E2.hash) + get_oid_blob(E1, &E2) @@ expression E1, E2; @@ - get_sha1_blob(E1, E2->hash) + get_oid_blob(E1, E2) @@ expression E1, E2, E3, E4; @@ - get_sha1_with_context(E1, E2, E3.hash, E4) + get_oid_with_context(E1, E2, &E3, E4) @@ expression E1, E2, E3, E4; @@ - get_sha1_with_context(E1, E2, E3->hash, E4) + get_oid_with_context(E1, E2, E3, E4) Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-16coccinelle: make use of the "type" FREE_AND_NULL() ruleLibravatar Ævar Arnfjörð Bjarmason1-18/+9
Apply the result of the just-added coccinelle rule. This manually excludes a few occurrences, mostly things that resulted in many FREE_AND_NULL() on one line, that'll be manually fixed in a subsequent change. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-30transport-helper: replace checked snprintf with xsnprintfLibravatar Jeff King1-4/+1
We can use xsnprintf to do our truncation check with less code. The error message isn't as specific, but the point is that this isn't supposed to trigger in the first place (because our buffer is big enough to handle any int). Signed-off-by: Jeff King <peff@peff.net>
2017-02-27Merge branch 'jn/remote-helpers-with-git-dir'Libravatar Junio C Hamano1-2/+3
"git ls-remote" and "git archive --remote" are designed to work without being in a directory under Git's control. However, recent updates revealed that we randomly look into a directory called .git/ without actually doing necessary set-up when working in a repository. Stop doing so. * jn/remote-helpers-with-git-dir: remote helpers: avoid blind fall-back to ".git" when setting GIT_DIR remote: avoid reading $GIT_DIR config in non-repo
2017-02-14remote helpers: avoid blind fall-back to ".git" when setting GIT_DIRLibravatar Jonathan Nieder1-2/+3
To push from or fetch to the current repository, remote helpers need to know what repository that is. Accordingly, Git sets the GIT_DIR environment variable to the path to the current repository when invoking remote helpers. There is a special case it does not handle: "git ls-remote" and "git archive --remote" can be run to inspect a remote repository without being run from any local repository. GIT_DIR is not useful in this scenario: - if we are not in a repository, we don't need to set GIT_DIR to override an existing GIT_DIR value from the environment. If GIT_DIR is present then we would be in a repository if it were valid and would have called die() if it weren't. - not setting GIT_DIR may cause a helper to do the usual discovery walk to find the repository. But we know we're not in one, or we would have found it ourselves. So in the worst case it may expend a little extra effort to try to find a repository and fail (for example, remote-curl would do this to try to find repository-level configuration). So leave GIT_DIR unset in this case. This makes GIT_DIR easier to understand for remote helper authors and makes transport code less of a special case for repository discovery. Noticed using b1ef400e (setup_git_env: avoid blind fall-back to ".git", 2016-10-20) from 'next': $ cd /tmp $ git ls-remote https://kernel.googlesource.com/pub/scm/git/git fatal: BUG: setup_git_env called without repository Helped-by: Jeff King <peff@peff.net> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-08push options: pass push options to the transport helperLibravatar Stefan Beller1-0/+7
When using non-builtin protocols relying on a transport helper (such as http), push options are not propagated to the helper. The user could ask for push options and a push would seemingly succeed, but the push options would never be transported to the server, misleading the users expectation. Fix this by propagating the push options to the transport helper. This is only addressing the first issue of (1) the helper protocol does not propagate push-option (2) the http helper is not prepared to handle push-option Once we fix (2), the http transport helper can make use of push options as well, but that happens as a follow up. (1) is a bug fix, whereas (2) is a feature, which is why we only do (1) here. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-10-10Merge branch 'nd/shallow-deepen'Libravatar Junio C Hamano1-14/+48
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 ...
2016-08-11Spelling fixesLibravatar Ville Skyttä1-4/+4
<BAD> <CORRECTED> accidently accidentally commited committed dependancy dependency emtpy empty existance existence explicitely explicitly git-upload-achive git-upload-archive hierachy hierarchy indegee indegree intial initial mulitple multiple non-existant non-existent precendence. precedence. priviledged privileged programatically programmatically psuedo-binary pseudo-binary soemwhere somewhere successfull successful transfering transferring uncommited uncommitted unkown unknown usefull useful writting writing Signed-off-by: Ville Skyttä <ville.skytta@iki.fi> Signed-off-by: Junio C Hamano <gitster@pobox.com>