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2012-09-20Merge branch 'nd/maint-remote-remove' into maintLibravatar Junio C Hamano2-3/+3
* nd/maint-remote-remove: remote: prefer subcommand name 'remove' to 'rm'
2012-09-17t/perf: add "trash directory" to .gitignoreLibravatar Ramkumar Ramachandra1-2/+3
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-09-14Merge branch 'mz/cherry-pick-cmdline-order' into maintLibravatar Junio C Hamano2-0/+25
* mz/cherry-pick-cmdline-order: cherry-pick/revert: respect order of revisions to pick demonstrate broken 'git cherry-pick three one two' teach log --no-walk=unsorted, which avoids sorting
2012-09-14Sync with 1.7.11.7Libravatar Junio C Hamano2-0/+17
2012-09-14Merge branch 'jk/maint-quiet-is-synonym-to-s-in-log' into maint-1.7.11Libravatar Junio C Hamano1-0/+12
* jk/maint-quiet-is-synonym-to-s-in-log: log: fix --quiet synonym for -s
2012-09-14Merge branch 'rj/test-regex' into maint-1.7.11Libravatar Junio C Hamano1-0/+5
* rj/test-regex: test-regex: Add a test to check for a bug in the regex routines
2012-09-12Merge branch 'maint-1.7.11' into maintLibravatar Junio C Hamano10-96/+191
2012-09-12Merge branch 'jc/apply-binary-p0' into maint-1.7.11Libravatar Junio C Hamano1-21/+33
"git apply -p0" did not parse pathnames on "diff --git" line correctly. This caused patches that had pathnames in no other places to be mistakenly rejected (most notably, binary patch that does not rename nor change mode). Textual patches, renames or mode changes have preimage and postimage pathnames in different places in a form that can be parsed unambiguously and did not suffer from this problem. * jc/apply-binary-p0: apply: compute patch->def_name correctly under -p0
2012-09-12Merge branch 'jc/dotdot-is-parent-directory' into maint-1.7.11Libravatar Junio C Hamano2-0/+21
"git log .." errored out saying it is both rev range and a path when there is no disambiguating "--" is on the command line. Update the command line parser to interpret ".." as a path in such a case. * jc/dotdot-is-parent-directory: specifying ranges: we did not mean to make ".." an empty set
2012-09-12Merge branch 'jk/maint-http-half-auth-push' into maint-1.7.11Libravatar Junio C Hamano6-75/+127
Pushing to smart HTTP server with recent Git fails without having the username in the URL to force authentication, if the server is configured to allow GET anonymously, while requiring authentication for POST. * jk/maint-http-half-auth-push: http: prompt for credentials on failed POST http: factor out http error code handling t: test http access to "half-auth" repositories t: test basic smart-http authentication t/lib-httpd: recognize */smart/* repos as smart-http t/lib-httpd: only route auth/dumb to dumb repos t5550: factor out http auth setup t5550: put auth-required repo in auth/dumb
2012-09-12Merge branch 'kk/maint-for-each-ref-multi-sort' into maint-1.7.11Libravatar Junio C Hamano1-0/+10
"git for-each-ref" did not honor multiple "--sort=<key>" arguments correctly. * kk/maint-for-each-ref-multi-sort: for-each-ref: Fix sort with multiple keys t6300: test sort with multiple keys
2012-09-11Sync with 1.7.11.6Libravatar Junio C Hamano5-13/+127
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-09-11Merge branch 'sz/submodule-force-update' into maint-1.7.11Libravatar Junio C Hamano1-0/+12
* sz/submodule-force-update: Make 'git submodule update --force' always check out submodules.
2012-09-11Merge branch 'ph/stash-rerere' into maint-1.7.11Libravatar Junio C Hamano1-0/+38
* ph/stash-rerere: stash: invoke rerere in case of conflict test: git-stash conflict sets up rerere
2012-09-11Merge branch 'hv/submodule-path-unmatch' into maint-1.7.11Libravatar Junio C Hamano1-4/+22
* hv/submodule-path-unmatch: Let submodule command exit with error status if path does not exist
2012-09-11Merge branch 'mz/empty-rebase-test' into maint-1.7.11Libravatar Junio C Hamano1-1/+17
* mz/empty-rebase-test: add tests for 'git rebase --keep-empty'
2012-09-11Merge branch 'ab/diff-write-incomplete-line' into maint-1.7.11Libravatar Junio C Hamano1-0/+30
* ab/diff-write-incomplete-line: Fix '\ No newline...' annotation in rewrite diffs
2012-09-11Merge branch 'jc/maint-t7406-rev-parse-max-count-huh' into maint-1.7.11Libravatar Junio C Hamano1-8/+8
* jc/maint-t7406-rev-parse-max-count-huh: t7406: fix misleading "rev-parse --max-count=1 HEAD"
2012-09-11Merge branch 'jc/test-prereq' into maintLibravatar Junio C Hamano6-205/+233
* jc/test-prereq: t3910: use the UTF8_NFD_TO_NFC test prereq test-lib: provide UTF8 behaviour as a prerequisite t0050: use the SYMLINKS test prereq t0050: use the CASE_INSENSITIVE_FS test prereq test-lib: provide case insensitivity as a prerequisite test: allow prerequisite to be evaluated lazily test: rename $satisfied to $satisfied_prereq
2012-09-10Merge branch 'maint-1.7.11' into maintLibravatar Junio C Hamano5-0/+176
* maint-1.7.11: Almost 1.7.11.6 gitweb: URL-decode $my_url/$my_uri when stripping PATH_INFO rebase -i: use full onto sha1 in reflog sh-setup: protect from exported IFS receive-pack: do not leak output from auto-gc to standard output t/t5400: demonstrate breakage caused by informational message from prune setup: clarify error messages for file/revisions ambiguity send-email: improve RFC2047 quote parsing fsck: detect null sha1 in tree entries do not write null sha1s to on-disk index diff: do not use null sha1 as a sentinel value
2012-09-10Merge branch 'bc/receive-pack-stdout-protection' into maint-1.7.11Libravatar Junio C Hamano1-0/+35
When "git push" triggered the automatic gc on the receiving end, a message from "git prune" that said it was removing cruft leaked to the standard output, breaking the communication protocol. * bc/receive-pack-stdout-protection: receive-pack: do not leak output from auto-gc to standard output t/t5400: demonstrate breakage caused by informational message from prune
2012-09-10Merge branch 'jk/maint-null-in-trees' into maint-1.7.11Libravatar Junio C Hamano3-0/+128
"git diff" had a confusion between taking data from a path in the working tree and taking data from an object that happens to have name 0{40} recorded in a tree. * jk/maint-null-in-trees: fsck: detect null sha1 in tree entries do not write null sha1s to on-disk index diff: do not use null sha1 as a sentinel value
2012-09-10Merge branch 'tr/maint-send-email-2047' into maint-1.7.11Libravatar Junio C Hamano1-0/+13
"git send-email" did not unquote encoded words that appear on the header correctly, and lost "_" from strings. * tr/maint-send-email-2047: send-email: improve RFC2047 quote parsing
2012-09-06remote: prefer subcommand name 'remove' to 'rm'Libravatar Nguyễn Thái Ngọc Duy2-3/+3
All remote subcommands are spelled out words except 'rm'. 'rm', being a popular UNIX command name, may mislead users that there are also 'ls' or 'mv'. Use 'remove' to fit with the rest of subcommands. 'rm' is still supported and used in the test suite. It's just not widely advertised. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-09-02test-regex: Add a test to check for a bug in the regex routinesLibravatar Ramsay Jones1-0/+5
Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-30cherry-pick/revert: respect order of revisions to pickLibravatar Martin von Zweigbergk1-1/+1
When giving multiple individual revisions to cherry-pick or revert, as in 'git cherry-pick A B' or 'git revert B A', one would expect them to be picked/reverted in the order given on the command line. They are instead ordered by their commit timestamp -- in chronological order for "cherry-pick" and in reverse chronological order for "revert". This matches the order in which one would usually give them on the command line, making this bug somewhat hard to notice. Still, it has been reported at least once before [1]. It seems like the chronological sorting happened by accident because the revision walker has traditionally always sorted commits in reverse chronological order when rev_info.no_walk was enabled. In the case of 'git revert B A' where B is newer than A, this sorting is a no-op. For 'git cherry-pick A B', the sorting would reverse the arguments, but because the sequencer also flips the rev_info.reverse flag when picking (as opposed to reverting), the end result is a chronological order. The rev_info.reverse flag was probably flipped so that the revision walker emits B before C in 'git cherry-pick A..C'; that it happened to effectively undo the unexpected sorting done when not walking, was probably a coincidence that allowed this bug to happen at all. Fix the bug by telling the revision walker not to sort the commits when not walking. The only case we want to reverse the order is now when cherry-picking and walking revisions (rev_info.no_walk = 0). [1] http://thread.gmane.org/gmane.comp.version-control.git/164794 Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-30demonstrate broken 'git cherry-pick three one two'Libravatar Martin von Zweigbergk1-0/+15
Cherry-picking commits out of order (w.r.t. commit time stamp) doesn't currently work. Add a test case to demonstrate it. Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-30teach log --no-walk=unsorted, which avoids sortingLibravatar Martin von Zweigbergk1-0/+10
When 'git log' is passed the --no-walk option, no revision walk takes place, naturally. Perhaps somewhat surprisingly, however, the provided revisions still get sorted by commit date. So e.g 'git log --no-walk HEAD HEAD~1' and 'git log --no-walk HEAD~1 HEAD' give the same result (unless the two revisions share the commit date, in which case they will retain the order given on the command line). As the commit that introduced --no-walk (8e64006 (Teach revision machinery about --no-walk, 2007-07-24)) points out, the sorting is intentional, to allow things like git log --abbrev-commit --pretty=oneline --decorate --all --no-walk to show all refs in order by commit date. But there are also other cases where the sorting is not wanted, such as <command producing revisions in order> | git log --oneline --no-walk --stdin To accomodate both cases, leave the decision of whether or not to sort up to the caller, by allowing --no-walk={sorted,unsorted}, defaulting to 'sorted' for backward-compatibility reasons. Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-28log: fix --quiet synonym for -sLibravatar Jeff King1-0/+12
Originally the "--quiet" option was parsed by the diff-option parser into the internal QUICK option. This had the effect of silencing diff output from the log (which was not intended, but happened to work and people started to use it). But it also had other odd side effects at the diff level (for example, it would suppress the second commit in "git show A B"). To fix this, commit 1c40c36 converted log to parse-options and handled the "quiet" option separately, not passing it on to the diff code. However, it simply ignored the option, which was a regression for people using it as a synonym for "-s". Commit 01771a8 then fixed that by interpreting the option to add DIFF_FORMAT_NO_OUTPUT to the list of output formats. However, that commit did not fix it in all cases. It sets the flag after setup_revisions is called. Naively, this makes sense because you would expect the setup_revisions parser to overwrite our output format flag if "-p" or another output format flag is seen. However, that is not how the NO_OUTPUT flag works. We actually store it in the bit-field as just another format. At the end of setup_revisions, we call diff_setup_done, which post-processes the bitfield and clears any other formats if we have set NO_OUTPUT. By setting the flag after setup_revisions is done, diff_setup_done does not have a chance to make this tweak, and we end up with other format options still set. As a result, the flag would have no effect in "git log -p --quiet" or "git show --quiet". Fix it by setting the format flag before the call to setup_revisions. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-27http: prompt for credentials on failed POSTLibravatar Jeff King1-1/+1
All of the smart-http GET requests go through the http_get_* functions, which will prompt for credentials and retry if we see an HTTP 401. POST requests, however, do not go through any central point. Moreover, it is difficult to retry in the general case; we cannot assume the request body fits in memory or is even seekable, and we don't know how much of it was consumed during the attempt. Most of the time, this is not a big deal; for both fetching and pushing, we make a GET request before doing any POSTs, so typically we figure out the credentials during the first request, then reuse them during the POST. However, some servers may allow a client to get the list of refs from receive-pack without authentication, and then require authentication when the client actually tries to POST the pack. This is not ideal, as the client may do a non-trivial amount of work to generate the pack (e.g., delta-compressing objects). However, for a long time it has been the recommended example configuration in git-http-backend(1) for setting up a repository with anonymous fetch and authenticated push. This setup has always been broken without putting a username into the URL. Prior to commit 986bbc0, it did work with a username in the URL, because git would prompt for credentials before making any requests at all. However, post-986bbc0, it is totally broken. Since it has been advertised in the manpage for some time, we should make sure it works. Unfortunately, it is not as easy as simply calling post_rpc again when it fails, due to the input issue mentioned above. However, we can still make this specific case work by retrying in two specific instances: 1. If the request is large (bigger than LARGE_PACKET_MAX), we will first send a probe request with a single flush packet. Since this request is static, we can freely retry it. 2. If the request is small and we are not using gzip, then we have the whole thing in-core, and we can freely retry. That means we will not retry in some instances, including: 1. If we are using gzip. However, we only do so when calling git-upload-pack, so it does not apply to pushes. 2. If we have a large request, the probe succeeds, but then the real POST wants authentication. This is an extremely unlikely configuration and not worth worrying about. While it might be nice to cover those instances, doing so would be significantly more complex for very little real-world gain. In the long run, we will be much better off when curl learns to internally handle authentication as a callback, and we can cleanly handle all cases that way. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-27t: test http access to "half-auth" repositoriesLibravatar Jeff King3-0/+28
Some sites set up http access to repositories such that fetching is anonymous and unauthenticated, but pushing is authenticated. While there are multiple ways to do this, the technique advertised in the git-http-backend manpage is to block access to locations matching "/git-receive-pack$". Let's emulate that advice in our test setup, which makes it clear that this advice does not actually work. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-27t: test basic smart-http authenticationLibravatar Jeff King2-0/+25
We do not currently test authentication over smart-http at all. In theory, it should work exactly as it does for dumb http (which we do test). It does indeed work for these simple tests, but this patch lays the groundwork for more complex tests in future patches. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-27t/lib-httpd: recognize */smart/* repos as smart-httpLibravatar Jeff King1-9/+7
We do not currently test authentication for smart-http repos at all. Part of the infrastructure to do this is recognizing that auth/smart is indeed a smart-http repo. The current apache config recognizes only "^/smart/*" as smart-http. Let's instead treat anything with /smart/ in the URL as smart-http. This is obviously a stupid thing to do for a real production site, but for our test suite we know that our repositories will not have this magic string in the name. Note that we will route /foo/smart/bar.git directly to git-http-backend/bar.git; in other words, everything before the "/smart/" is irrelevant to finding the repo on disk (but may impact apache config, for example by triggering auth checks). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-27t/lib-httpd: only route auth/dumb to dumb reposLibravatar Jeff King1-1/+1
Our test apache config points all of auth/ directly to the on-disk repositories via an Alias directive. This works fine because everything authenticated is currently in auth/dumb, which is a subset. However, this would conflict with a ScriptAlias for auth/smart (which will come in future patches), so let's narrow the Alias. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-27t5550: factor out http auth setupLibravatar Jeff King3-54/+55
The t5550 script sets up a nice askpass helper for simulating user input and checking what git prompted for. Let's make it available to other http scripts by migrating it to lib-httpd. We can use this immediately in t5540 to make our tests more robust (previously, we did not check at all that hitting the password-protected repo actually involved a password). Unfortunately, we end up failing the test because the current code erroneously prompts twice (once for git-remote-http, and then again when the former spawns git-http-push). More importantly, though, it will let us easily add smart-http authentication tests in t5541 and t5551; we currently do not test smart-http authentication at all. As part of making it generic, let's always look for and store auxiliary askpass files at the top-level trash directory; this makes it compatible with t5540, which runs some tests from sub-repositories. We can abstract away the ugliness with a short helper function. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-27t5550: put auth-required repo in auth/dumbLibravatar Jeff King1-9/+9
In most of our tests, we put repos to be accessed by dumb protocols in /dumb, and repos to be accessed by smart protocols in /smart. In our test apache setup, the whole /auth hierarchy requires authentication. However, we don't bother to split it by smart and dumb here because we are not currently testing smart-http authentication at all. That will change in future patches, so let's be explicit that we are interested in testing dumb access here. This also happens to match what t5540 does for the push tests. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-24apply: compute patch->def_name correctly under -p0Libravatar Junio C Hamano1-21/+33
Back when "git apply" was written, we made sure that the user can skip more than the default number of path components (i.e. 1) by giving "-p<n>", but the logic for doing so was built around the notion of "we skip N slashes and stop". This obviously does not work well when running under -p0 where we do not want to skip any, but still want to skip SP/HT that separates the pathnames of preimage and postimage and want to reject absolute pathnames. Stop using "stop_at_slash()", and instead introduce a new helper "skip_tree_prefix()" with similar logic but works correctly even for the -p0 case. This is an ancient bug, but has been masked for a long time because most of the patches are text and have other clues to tell us the name of the preimage and the postimage. Noticed by Colin McCabe. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-24Merge branch 'maint-1.7.11' into maintLibravatar Junio C Hamano3-2/+23
* maint-1.7.11: Prepare for 1.7.11.6 Make the ciabot scripts completely self-configuring in the normal case. Improved documentation for the ciabot scripts. man: git pull -r is a short for --rebase gitcli: describe abbreviation of long options rev-list docs: clarify --topo-order description Documentation/CodingGuidelines: spell out more shell guidelines Documentation: do not mention .git/refs/* directories tests: Introduce test_seq
2012-08-24Merge branch 'mk/test-seq' into maint-1.7.11Libravatar Junio C Hamano3-2/+23
Add a compatibility/utility function to the test framework. * mk/test-seq: tests: Introduce test_seq
2012-08-24Make 'git submodule update --force' always check out submodules.Libravatar Stefan Zager1-0/+12
Currently, it will only do a checkout if the sha1 registered in the containing repository doesn't match the HEAD of the submodule, regardless of whether the submodule is dirty. As discussed on the mailing list, the '--force' flag is a strong indicator that the state of the submodule is suspect, and should be reset to HEAD. Signed-off-by: Stefan Zager <szager@google.com> Acked-by: Jens Lehmann <Jens.Lehmann@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-23specifying ranges: we did not mean to make ".." an empty setLibravatar Junio C Hamano2-0/+21
Either end of revision range operator can be omitted to default to HEAD, as in "origin.." (what did I do since I forked) or "..origin" (what did they do since I forked). But the current parser interprets ".." as an empty range "HEAD..HEAD", and worse yet, because ".." does exist on the filesystem, we get this annoying output: $ cd Documentation/howto $ git log .. ;# give me recent commits that touch Documentation/ area. fatal: ambiguous argument '..': both revision and filename Use '--' to separate filenames from revisions Surely we could say "git log ../" or even "git log -- .." to disambiguate, but we shouldn't have to. Helped-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-22t3910: use the UTF8_NFD_TO_NFC test prereqLibravatar Michael J Gruber1-146/+135
Besides reusing the new test prerequisite, this fixes also the issue that the current output is not TAP compliant and produces the output "no reason given" [for skipping]. Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-21for-each-ref: Fix sort with multiple keysLibravatar Kacper Kornet1-1/+1
The linked list describing sort options was not correctly set up in opt_parse_sort. In the result, contrary to the documentation, only the last of multiple --sort options to git-for-each-ref was taken into account. This commit fixes it. Signed-off-by: Kacper Kornet <draenog@pld-linux.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-21t6300: test sort with multiple keysLibravatar Kacper Kornet1-0/+10
Documentation of git-for-each-ref says that --sort=<key> option can be used multiple times, in which case the last key becomes the primary key. However this functionality was never checked in test suite and is currently broken. This commit adds appropriate test in preparation for fix. Signed-off-by: Kacper Kornet <draenog@pld-linux.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-17stash: invoke rerere in case of conflictLibravatar Phil Hord1-1/+1
"stash apply" directly calls a backend merge function which does not automatically invoke rerere. This confuses mergetool when leftover rerere state is left behind from previous merges. Invoke rerere explicitly when we encounter a conflict during stash apply. This turns the test introduced by the previous commit to succeed. Signed-off-by: Phil Hord <hordp@cisco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-17test: git-stash conflict sets up rerereLibravatar Phil Hord1-0/+38
Add a test to make sure that a conflicted "stash apply" invokes rerere to record the conflicts and resolve the the files it can (the current code doesn't, so the test is marked as failing). Without correct state recorded for rerere, mergetool may be confused, causing it to think no files have conflicts even though they do. This condition is not verified by this test since a subsequent commit will change the behavior to enable rerere for stash conflicts. Also, the next test expected us to finish up with a reset, which is impossible to do if we fail (as we must) and it's an unreasonable expectation anyway. Begin the next test with a reset of its own instead. Signed-off-by: Phil Hord <hordp@cisco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-15Merge branch 'rj/maint-grep-remove-redundant-test' into maintLibravatar Junio C Hamano1-11/+0
* rj/maint-grep-remove-redundant-test: t7810-*.sh: Remove redundant test
2012-08-14Let submodule command exit with error status if path does not existLibravatar Heiko Voigt1-4/+22
Various subcommands of the "git submodule" command exited with 0 status even though the path given by the user did not exist. The reason behind that was that they all pipe the output of module_list into the while loop which then does the action on the paths specified by the commandline. Since the exit code of the command on the upstream side of the pipe is ignored by the shell, the status code of "ls-files --error-unmatch" nor "module_list" was not propagated. In case ls-files returns with an error code, we write a special string that is not possible in non error situations, and no other output, so that the downstream can detect the error and die with an error code. The error message that there is an unmatched pathspec comes through stderr directly from ls-files. So the user still gets a hint whats going on. Signed-off-by: Heiko Voigt <hvoigt@hvoigt.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-10git svn: reset invalidates the memoized mergeinfo cachesLibravatar Peter Baumann1-0/+78
Since v1.7.0-rc2~11 (git-svn: persistent memoization, 2010-01-30), git-svn has maintained some private per-repository caches in .git/svn/.caches to avoid refetching and recalculating some mergeinfo-related information with every 'git svn fetch'. This memoization can cause problems, e.g consider the following case: SVN repo: ... - a - b - c - m <- trunk \ / d - e <- branch1 The Git import of the above repo is at commit 'a' and doesn't know about the branch1. In case of an 'git svn rebase', only the trunk of the SVN repo is imported. During the creation of the git commit 'm', git svn uses the svn:mergeinfo property and tries to find the corresponding git commit 'e' to create 'm' with 'c' and 'e' as parents. But git svn rebase only imports the current branch so commit 'e' is not imported. Therefore git svn fails to create commit 'm' as a merge commit, because one of its parents is not known to git. The imported history looks like this: ... - a - b - c - m <- trunk A later 'git svn fetch' to import all branches can't rewrite the commit 'm' to add 'e' as a parent and to make it a real git merge commit, because it was already imported. That's why the imported history misses the merge and looks like this: ... - a - b - c - m <- trunk \ d - e <- branch1 Right now the only known workaround for importing 'm' as a merge is to force reimporting 'm' again from SVN, e.g. via $ git svn reset --revision $(git find-rev $c) $ git svn fetch Sadly, this is where the behavior has regressed: git svn reset doesn't invalidate the old mergeinfo cache, which is no longer valid for the reimport, which leads to 'm' beeing imprted with only 'c' as parent. As solution to this problem, this commit invalidates the mergeinfo cache to force correct recalculation of the parents. During development of this patch, several ways for invalidating the cache where considered. One of them is to use Memoize::flush_cache, which will call the CLEAR method on the underlying Memoize persistency implementation. Sadly, neither Memoize::Storable nor the newer Memoize::YAML module introduced in 68f532f4ba888 could optionally be used implement the CLEAR method, so this is not an option. Reseting the internal hash used to store the memoized values has the same problem, because it calls the non-existing CLEAR method of the underlying persistency layer, too. Considering this and taking into account the different implementations of the memoization modules, where Memoize::Storable is not in our control, implementing the missing CLEAR method is not an option, at least not if Memoize::Storable is still used. Therefore the easiest solution to clear the cache is to delete the files on disk in 'git svn reset'. Normally, deleting the files behind the back of the memoization module would be problematic, because the in-memory representation would still exist and contain wrong data. Fortunately, the memoization is active in memory only for a small portion of the code. Invalidating the cache by deleting the files on disk if it isn't active should be safe. Signed-off-by: Peter Baumann <waste.manager@gmx.de> Signed-off-by: Steven Walter <stevenrwalter@gmail.com> Signed-off-by: Eric Wong <normalperson@yhbt.net>
2012-08-10git svn: handle errors and concurrent commits in dcommitLibravatar Robert Luberda1-0/+216
dcommit didn't handle errors returned by SVN and coped very poorly with concurrent commits that appear in SVN repository while dcommit was running. In both cases it left git repository in inconsistent state: index (which was reset with `git reset --mixed' after a successful commit to SVN) no longer matched the checkouted tree, when the following commit failed or needed to be rebased. See http://bugs.debian.org/676904 for examples. This patch fixes the issues by: - introducing error handler for dcommit. The handler will try to rebase or reset working tree before returning error to the end user. dcommit_rebase function was extracted out of cmd_dcommit to ensure consistency between cmd_dcommit and the error handler. - calling `git reset --mixed' only once after all patches are successfully committed to SVN. This ensures index is not touched for most of the time of dcommit run. Signed-off-by: Eric Wong <normalperson@yhbt.net>