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2015-08-25pull: pass upload_pack only when it was givenLibravatar Junio C Hamano1-1/+1
The upload_pack shell variable is initialized to an empty string, so conditional expansion with ${upload_pack+"$upload_pack"} would not work very well. You need a colon there. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-30pull.sh: quote $upload_pack when passing it to git-fetchLibravatar Matthieu Moy1-1/+1
The previous code broke for example git pull --upload-pack 'echo --foo' Reported-by: Joey Hess <id@joeyh.name> Fix-suggested-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-02pull: use git-rev-parse --parseopt for option parsingLibravatar Paul Tan1-40/+57
To enable unambiguous parsing of abbreviated options, bundled short options, separate form options and to provide consistent usage help, use git-rev-parse --parseopt for option parsing. With this, simplify the option parsing code. Signed-off-by: Paul Tan <pyokagan@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-02pull: handle git-fetch's options as wellLibravatar Paul Tan4-6/+68
While parsing the command-line arguments, git-pull stops parsing at the first unrecognized option, assuming that any subsequent options are for git-fetch, and can thus be kept in the shell's positional parameters list, so that it can be passed to git-fetch via the expansion of "$@". However, certain functions in git-pull assume that the positional parameters do not contain any options: * error_on_no_merge_candidates() uses the number of positional parameters to determine which error message to print out, and will thus print the wrong message if git-fetch's options are passed in as well. * the call to get_remote_merge_branch() assumes that the positional parameters only contains the optional repo and refspecs, and will thus silently fail if git-fetch's options are passed in as well. * --dry-run is a valid git-fetch option, but if provided after any git-fetch options, it is not recognized by git-pull and thus git-pull will continue to run the merge or rebase. Fix these bugs by teaching git-pull to parse git-fetch's options as well. Add tests to prevent regressions. This removes the limitation where git-fetch's options have to come after git-merge's and git-rebase's options on the command line. Update the documentation to reflect this. Signed-off-by: Paul Tan <pyokagan@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-02Merge branch 'pt/pull-tests' into pt/pull-optparseLibravatar Junio C Hamano2-36/+175
* pt/pull-tests: t5520: check reflog action in fast-forward merge t5521: test --dry-run does not make any changes t5520: test --rebase failure on unborn branch with index t5520: test --rebase with multiple branches t5520: test work tree fast-forward when fetch updates head t5520: test for failure if index has unresolved entries t5520: test no merge candidates cases t5520: prevent field splitting in content comparisons
2015-06-01Sixth batch for 2.5 cycleLibravatar Junio C Hamano1-1/+50
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-01Merge branch 'sb/test-bitmap-free-at-end'Libravatar Junio C Hamano1-1/+1
An earlier leakfix to bitmap testing code was incomplete. * sb/test-bitmap-free-at-end: test_bitmap_walk: free bitmap with bitmap_free
2015-06-01Merge branch 'mm/rebase-i-post-rewrite-exec'Libravatar Junio C Hamano2-41/+58
"git rebase -i" fired post-rewrite hook when it shouldn't (namely, when it was told to stop sequencing with 'exec' insn). * mm/rebase-i-post-rewrite-exec: t5407: use <<- to align the expected output rebase -i: fix post-rewrite hook with failed exec command rebase -i: demonstrate incorrect behavior of post-rewrite
2015-06-01Merge branch 'fm/fetch-raw-sha1'Libravatar Junio C Hamano6-16/+116
"git upload-pack" that serves "git fetch" can be told to serve commits that are not at the tip of any ref, as long as they are reachable from a ref, with uploadpack.allowReachableSHA1InWant configuration variable. * fm/fetch-raw-sha1: upload-pack: optionally allow fetching reachable sha1 upload-pack: prepare to extend allow-tip-sha1-in-want config.txt: clarify allowTipSHA1InWant with camelCase
2015-06-01Merge branch 'sg/help-group'Libravatar Junio C Hamano7-51/+117
Group list of commands shown by "git help" along the workflow elements to help early learners. * sg/help-group: help: respect new common command grouping command-list.txt: drop the "common" tag generate-cmdlist: parse common group commands command-list.txt: add the common groups block command-list: prepare machinery for upcoming "common groups" section
2015-06-01Merge branch 'mm/log-format-raw-doc'Libravatar Junio C Hamano2-2/+14
Clarify that "log --raw" and "log --format=raw" are unrelated concepts. * mm/log-format-raw-doc: Documentation/log: clarify sha1 non-abbreviation in log --raw Documentation/log: clarify what --raw means
2015-06-01Merge branch 'dt/cat-file-follow-symlinks'Libravatar Junio C Hamano7-19/+601
"git cat-file --batch(-check)" learned the "--follow-symlinks" option that follows an in-tree symbolic link when asked about an object via extended SHA-1 syntax, e.g. HEAD:RelNotes that points at Documentation/RelNotes/2.5.0.txt. With the new option, the command behaves as if HEAD:Documentation/RelNotes/2.5.0.txt was given as input instead. * dt/cat-file-follow-symlinks: cat-file: add --follow-symlinks to --batch sha1_name: get_sha1_with_context learns to follow symlinks tree-walk: learn get_tree_entry_follow_symlinks
2015-06-01Merge branch 'rs/janitorial'Libravatar Junio C Hamano7-26/+9
Code clean-up. * rs/janitorial: dir: remove unused variable sb clean: remove unused variable buf use file_exists() to check if a file exists in the worktree
2015-06-01Merge branch 'jk/stash-options'Libravatar Junio C Hamano2-1/+20
Make "git stash something --help" error out, so that users can safely say "git stash drop --help". * jk/stash-options: stash: recognize "--help" for subcommands stash: complain about unknown flags
2015-06-01Merge branch 'da/mergetool-winmerge'Libravatar Junio C Hamano3-2/+39
"git mergetool" learned to drive WinMerge as a backend. * da/mergetool-winmerge: mergetools: add winmerge as a builtin tool mergetool--lib: set IFS for difftool and mergetool
2015-06-01Merge branch 'mc/commit-doc-grammofix'Libravatar Junio C Hamano1-1/+1
Doc grammar fix. * mc/commit-doc-grammofix: Documentation/git-commit: grammofix
2015-06-01Merge branch 'jh/filter-empty-contents'Libravatar Junio C Hamano2-1/+27
The clean/smudge interface did not work well when filtering an empty contents (failed and then passed the empty input through). It can be argued that a filter that produces anything but empty for an empty input is nonsense, but if the user wants to do strange things, then why not? * jh/filter-empty-contents: sha1_file: pass empty buffer to index empty file
2015-06-01Merge branch 'ah/usage-strings'Libravatar Junio C Hamano2-2/+2
A few usage string updates. * ah/usage-strings: blame, log: format usage strings similarly to those in documentation
2015-06-01Merge branch 'jk/http-backend-deadlock'Libravatar Junio C Hamano3-29/+139
Communication between the HTTP server and http_backend process can lead to a dead-lock when relaying a large ref negotiation request. Diagnose the situation better, and mitigate it by reading such a request first into core (to a reasonable limit). * jk/http-backend-deadlock: http-backend: spool ref negotiation requests to buffer t5551: factor out tag creation http-backend: fix die recursion with custom handler
2015-06-01Merge branch 'dt/clean-pathspec-filter-then-lstat'Libravatar Junio C Hamano1-3/+3
"git clean pathspec..." tried to lstat(2) and complain even for paths outside the given pathspec. * dt/clean-pathspec-filter-then-lstat: clean: only lstat files in pathspec
2015-05-29t5520: check reflog action in fast-forward mergeLibravatar Paul Tan1-3/+10
When testing a fast-forward merge with git-pull, check to see if the reflog action is "pull" with the arguments passed to git-pull. While we are in the vicinity, remove the empty line as well. Signed-off-by: Paul Tan <pyokagan@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-29t5521: test --dry-run does not make any changesLibravatar Paul Tan1-0/+13
Test that when --dry-run is provided to git-pull, it does not make any changes, namely: * --dry-run gets passed to git-fetch, so no FETCH_HEAD will be created and no refs will be fetched. * The index and work tree will not be modified. Signed-off-by: Paul Tan <pyokagan@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-29t5520: test --rebase failure on unborn branch with indexLibravatar Paul Tan1-0/+15
Commit 19a7fcb (allow pull --rebase on branch yet to be born, 2009-08-11) special cases git-pull on an unborn branch in a different code path such that git-pull --rebase is still valid even though there is no HEAD yet. This code path still ensures that there is no index in order not to lose any staged changes. Implement a test to ensure that this check is triggered. Signed-off-by: Paul Tan <pyokagan@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-29t5520: test --rebase with multiple branchesLibravatar Paul Tan1-0/+9
Since rebasing on top of multiple upstream branches does not make sense, since 51b2ead (disallow providing multiple upstream branches to rebase, pull --rebase, 2009-02-18), git-pull explicitly disallowed specifying multiple branches in the rebase case. Implement tests to ensure that git-pull fails and prints out the user-friendly error message in such a case. Signed-off-by: Paul Tan <pyokagan@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-29t5520: test work tree fast-forward when fetch updates headLibravatar Paul Tan1-0/+21
Since b10ac50 (Fix pulling into the same branch., 2005-08-25), git-pull, upon detecting that git-fetch updated the current head, will fast-forward the working tree to the updated head commit. Implement tests to ensure that the fast-forward occurs in such a case, as well as to ensure that the user-friendly advice is printed upon failure. Signed-off-by: Paul Tan <pyokagan@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-29t5520: test for failure if index has unresolved entriesLibravatar Paul Tan1-0/+19
Commit d38a30d (Be more user-friendly when refusing to do something because of conflict., 2010-01-12) introduced code paths to git-pull which will error out with user-friendly advices if the user is in the middle of a merge or has unmerged files. Implement tests to ensure that git-pull will not run, and will print these advices, if the user is in the middle of a merge or has unmerged files in the index. Signed-off-by: Paul Tan <pyokagan@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-27Merge branch 'nd/untracked-cache'Libravatar Junio C Hamano1-2/+6
* nd/untracked-cache: t7063: hide stderr from setup inside prereq
2015-05-27t7063: hide stderr from setup inside prereqLibravatar Jeff King1-2/+6
When t7063 starts, it runs "update-index --untracked-cache" to see if we support the untracked cache. Its output goes straight to stderr, even if the test is not run with "-v". Let's wrap it in a prereq that will hide the output by default, but show it with "-v". Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-26Sync with 2.4.2Libravatar Junio C Hamano2-1/+47
2015-05-26Git 2.4.2Libravatar Junio C Hamano4-3/+49
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-26Merge branch 'jk/still-interesting' into maintLibravatar Junio C Hamano1-4/+19
"git rev-list --objects $old --not --all" to see if everything that is reachable from $old is already connected to the existing refs was very inefficient. * jk/still-interesting: limit_list: avoid quadratic behavior from still_interesting
2015-05-26Merge branch 'jc/hash-object' into maintLibravatar Junio C Hamano5-9/+43
"hash-object --literally" introduced in v2.2 was not prepared to take a really long object type name. * jc/hash-object: write_sha1_file(): do not use a separate sha1[] array t1007: add hash-object --literally tests hash-object --literally: fix buffer overrun with extra-long object type git-hash-object.txt: document --literally option
2015-05-26Merge branch 'jk/rebase-quiet-noop' into maintLibravatar Junio C Hamano1-1/+1
"git rebase --quiet" was not quite quiet when there is nothing to do. * jk/rebase-quiet-noop: rebase: silence "git checkout" for noop rebase
2015-05-26Merge branch 'sg/complete-decorate-full-not-long' into maintLibravatar Junio C Hamano1-1/+1
The completion for "log --decorate=" parameter value was incorrect. * sg/complete-decorate-full-not-long: completion: fix and update 'git log --decorate=' options
2015-05-26Merge branch 'jk/filter-branch-use-of-sed-on-incomplete-line' into maintLibravatar Junio C Hamano2-1/+19
"filter-branch" corrupted commit log message that ends with an incomplete line on platforms with some "sed" implementations that munge such a line. Work it around by avoiding to use "sed". * jk/filter-branch-use-of-sed-on-incomplete-line: filter-branch: avoid passing commit message through sed
2015-05-26Merge branch 'jc/daemon-no-ipv6-for-2.4.1' into maintLibravatar Junio C Hamano1-1/+1
"git daemon" fails to build from the source under NO_IPV6 configuration (regression in 2.4). * jc/daemon-no-ipv6-for-2.4.1: daemon: unbreak NO_IPV6 build regression
2015-05-26Merge branch 'jk/stash-require-clean-index' into maintLibravatar Junio C Hamano2-7/+16
"git stash pop/apply" forgot to make sure that not just the working tree is clean but also the index is clean. The latter is important as a stash application can conflict and the index will be used for conflict resolution. * jk/stash-require-clean-index: stash: require a clean index to apply t3903: avoid applying onto dirty index t3903: stop hard-coding commit sha1s
2015-05-26Merge branch 'jk/git-no-more-argv0-path-munging' into maintLibravatar Junio C Hamano1-1/+0
We have prepended $GIT_EXEC_PATH and the path "git" is installed in (typically "/usr/bin") to $PATH when invoking subprograms and hooks for almost eternity, but the original use case the latter tried to support was semi-bogus (i.e. install git to /opt/foo/git and run it without having /opt/foo on $PATH), and more importantly it has become less and less relevant as Git grew more mainstream (i.e. the users would _want_ to have it on their $PATH). Stop prepending the path in which "git" is installed to users' $PATH, as that would interfere the command search order people depend on (e.g. they may not like versions of programs that are unrelated to Git in /usr/bin and want to override them by having different ones in /usr/local/bin and have the latter directory earlier in their $PATH). * jk/git-no-more-argv0-path-munging: stop putting argv[0] dirname at front of PATH
2015-05-26Fifth batch for 2.5 cycleLibravatar Junio C Hamano1-6/+28
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-26Merge branch 'nd/untracked-cache'Libravatar Junio C Hamano21-58/+1822
Teach the index to optionally remember already seen untracked files to speed up "git status" in a working tree with tons of cruft. * nd/untracked-cache: (24 commits) git-status.txt: advertisement for untracked cache untracked cache: guard and disable on system changes mingw32: add uname() t7063: tests for untracked cache update-index: test the system before enabling untracked cache update-index: manually enable or disable untracked cache status: enable untracked cache untracked-cache: temporarily disable with $GIT_DISABLE_UNTRACKED_CACHE untracked cache: mark index dirty if untracked cache is updated untracked cache: print stats with $GIT_TRACE_UNTRACKED_STATS untracked cache: avoid racy timestamps read-cache.c: split racy stat test to a separate function untracked cache: invalidate at index addition or removal untracked cache: load from UNTR index extension untracked cache: save to an index extension ewah: add convenient wrapper ewah_serialize_strbuf() untracked cache: don't open non-existent .gitignore untracked cache: mark what dirs should be recursed/saved untracked cache: record/validate dir mtime and reuse cached output untracked cache: make a wrapper around {open,read,close}dir() ...
2015-05-26Merge branch 'rs/plug-leak-in-pack-bitmaps'Libravatar Junio C Hamano1-5/+3
The code to read pack-bitmap wanted to allocate a few hundred pointers to a structure, but by mistake allocated and leaked memory enough to hold that many actual structures. Correct the allocation size and also have it on stack, as it is small enough. * rs/plug-leak-in-pack-bitmaps: pack-bitmaps: plug memory leak, fix allocation size for recent_bitmaps
2015-05-26Merge branch 'pt/pull-ff-vs-merge-ff'Libravatar Junio C Hamano3-2/+13
The pull.ff configuration was supposed to override the merge.ff configuration, but it didn't. * pt/pull-ff-vs-merge-ff: pull: parse pull.ff as a bool or string pull: make pull.ff=true override merge.ff
2015-05-26Merge branch 'pt/pull-log-n'Libravatar Junio C Hamano2-2/+19
"git pull --log" and "git pull --no-log" worked as expected, but "git pull --log=20" did not. * pt/pull-log-n: pull: handle --log=<n>
2015-05-26Merge branch 'jk/rerere-forget-check-enabled'Libravatar Junio C Hamano1-0/+2
"git rerere forget" in a repository without rerere enabled gave a cryptic error message; it should be a silent no-op instead. * jk/rerere-forget-check-enabled: rerere: exit silently on "forget" when rerere is disabled
2015-05-25Merge branch 'jk/http-backend-deadlock-2.3' into jk/http-backend-deadlockLibravatar Junio C Hamano3-29/+139
* jk/http-backend-deadlock-2.3: http-backend: spool ref negotiation requests to buffer t5551: factor out tag creation http-backend: fix die recursion with custom handler
2015-05-25Merge branch 'jk/http-backend-deadlock-2.2' into jk/http-backend-deadlock-2.3Libravatar Junio C Hamano3-29/+139
* jk/http-backend-deadlock-2.2: http-backend: spool ref negotiation requests to buffer t5551: factor out tag creation http-backend: fix die recursion with custom handler
2015-05-25http-backend: spool ref negotiation requests to bufferLibravatar Jeff King3-11/+105
When http-backend spawns "upload-pack" to do ref negotiation, it streams the http request body to upload-pack, who then streams the http response back to the client as it reads. In theory, git can go full-duplex; the client can consume our response while it is still sending the request. In practice, however, HTTP is a half-duplex protocol. Even if our client is ready to read and write simultaneously, we may have other HTTP infrastructure in the way, including the webserver that spawns our CGI, or any intermediate proxies. In at least one documented case[1], this leads to deadlock when trying a fetch over http. What happens is basically: 1. Apache proxies the request to the CGI, http-backend. 2. http-backend gzip-inflates the data and sends the result to upload-pack. 3. upload-pack acts on the data and generates output over the pipe back to Apache. Apache isn't reading because it's busy writing (step 1). This works fine most of the time, because the upload-pack output ends up in a system pipe buffer, and Apache reads it as soon as it finishes writing. But if both the request and the response exceed the system pipe buffer size, then we deadlock (Apache blocks writing to http-backend, http-backend blocks writing to upload-pack, and upload-pack blocks writing to Apache). We need to break the deadlock by spooling either the input or the output. In this case, it's ideal to spool the input, because Apache does not start reading either stdout _or_ stderr until we have consumed all of the input. So until we do so, we cannot even get an error message out to the client. The solution is fairly straight-forward: we read the request body into an in-memory buffer in http-backend, freeing up Apache, and then feed the data ourselves to upload-pack. But there are a few important things to note: 1. We limit the in-memory buffer to prevent an obvious denial-of-service attack. This is a new hard limit on requests, but it's unlikely to come into play. The default value is 10MB, which covers even the ridiculous 100,000-ref negotation in the included test (that actually caps out just over 5MB). But it's configurable on the off chance that you don't mind spending some extra memory to make even ridiculous requests work. 2. We must take care only to buffer when we have to. For pushes, the incoming packfile may be of arbitrary size, and we should connect the input directly to receive-pack. There's no deadlock problem here, though, because we do not produce any output until the whole packfile has been read. For upload-pack's initial ref advertisement, we similarly do not need to buffer. Even though we may generate a lot of output, there is no request body at all (i.e., it is a GET, not a POST). [1] http://article.gmane.org/gmane.comp.version-control.git/269020 Test-adapted-from: Dennis Kaarsemaker <dennis@kaarsemaker.net> Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-22upload-pack: optionally allow fetching reachable sha1Libravatar Fredrik Medley6-6/+97
With uploadpack.allowReachableSHA1InWant configuration option set on the server side, "git fetch" can make a request with a "want" line that names an object that has not been advertised (likely to have been obtained out of band or from a submodule pointer). Only objects reachable from the branch tips, i.e. the union of advertised branches and branches hidden by transfer.hideRefs, will be processed. Note that there is an associated cost of having to walk back the history to check the reachability. This feature can be used when obtaining the content of a certain commit, for which the sha1 is known, without the need of cloning the whole repository, especially if a shallow fetch is used. Useful cases are e.g. repositories containing large files in the history, fetching only the needed data for a submodule checkout, when sharing a sha1 without telling which exact branch it belongs to and in Gerrit, if you think in terms of commits instead of change numbers. (The Gerrit case has already been solved through allowTipSHA1InWant as every Gerrit change has a ref.) Signed-off-by: Fredrik Medley <fredrik.medley@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-22upload-pack: prepare to extend allow-tip-sha1-in-wantLibravatar Fredrik Medley2-10/+19
To allow future extensions, e.g. allowing non-tip sha1, replace the boolean allow_tip_sha1_in_want variable with the flag-style allow_request_with_bare_object_name variable. Signed-off-by: Fredrik Medley <fredrik.medley@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-22Fourth batch for 2.5 cycleLibravatar Junio C Hamano1-0/+75
Signed-off-by: Junio C Hamano <gitster@pobox.com>