summaryrefslogtreecommitdiff
Commit message (Collapse)AuthorAgeFilesLines
* t4102: test renaming and rewriting the same filejc/apply-atomicJunio C Hamano2014-10-231-0/+29
| | | | Signed-off-by: Junio C Hamano <gitster@pobox.com>
* t4102: modernise styleJunio C Hamano2014-10-231-47/+51
| | | | Signed-off-by: Junio C Hamano <gitster@pobox.com>
* WIPJunio C Hamano2014-10-232-19/+38
|
* WIP: fix BMC in the diffJunio C Hamano2014-10-233-3/+11
|
* Update draft release notes to 2.2Junio C Hamano2014-10-211-4/+17
| | | | Signed-off-by: Junio C Hamano <gitster@pobox.com>
* Merge branch 'js/completion-hide-not-a-repo'Junio C Hamano2014-10-211-1/+2
|\ | | | | | | | | | | | | | | | | Some internal error messages leaked out of the bash completion when typing "git cmd <TAB>" and the machinery tried to complete refnames. * js/completion-hide-not-a-repo: completion: silence "fatal: Not a git repository" error
| * completion: silence "fatal: Not a git repository" errorjs/completion-hide-not-a-repoJohn Szakmeister2014-10-141-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | It is possible that a user is trying to run a git command and fail to realize that they are not in a git repository or working tree. When trying to complete an operation, __git_refs would fall to a degenerate case and attempt to use "git for-each-ref", which would emit the error. Hide this error message coming from "git for-each-ref". Signed-off-by: John Szakmeister <john@szakmeister.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | Merge branch 'da/mergetool-meld'Junio C Hamano2014-10-212-2/+16
|\ \ | | | | | | | | | | | | | | | | | | | | | Newer versions of 'meld' breaks the auto-detection we use to see if they are new enough to support the `--output` option. * da/mergetool-meld: mergetools/meld: make usage of `--output` configurable and more robust
| * | mergetools/meld: make usage of `--output` configurable and more robustda/mergetool-meldDavid Aguilar2014-10-162-2/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Older versions of meld listed --output in `meld --help`. Newer versions only mention `meld [OPTIONS...]`. Improve the checks to catch these newer versions. Add a `mergetool.meld.hasOutput` configuration to allow overriding the heuristic. Reported-by: Andrey Novoseltsev <novoselt@gmail.com> Helped-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | Merge branch 'da/mergetool-temporary-directory'Junio C Hamano2014-10-213-4/+60
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Allow a temporary directory specified to be used while running "git mergetool" backend. * da/mergetool-temporary-directory: t7610-mergetool: add test cases for mergetool.writeToTemp mergetool: add an option for writing to a temporary directory
| * | | t7610-mergetool: add test cases for mergetool.writeToTempda/mergetool-temporary-directoryDavid Aguilar2014-10-161-0/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add tests to ensure that filenames start with "./" when mergetool.writeToTemp is false and do not start with "./" when mergetool.writeToTemp is true. Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | mergetool: add an option for writing to a temporary directoryDavid Aguilar2014-10-162-4/+37
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Teach mergetool to write files in a temporary directory when 'mergetool.writeToTemp' is true. This is helpful for tools such as Eclipse which cannot cope with multiple copies of the same file in the worktree. Suggested-by: Charles Bailey <charles@hashpling.org> Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | | Merge branch 'da/mergetool-tool-help'Junio C Hamano2014-10-214-14/+21
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Allow "git mergetool --help" to run outside a Git repository. * da/mergetool-tool-help: difftool: don't assume that default sh is sane mergetool: don't require a work tree for --tool-help git-sh-setup: move GIT_DIR initialization into a function mergetool: use more conservative temporary filenames test-lib-functions: adjust style to match CodingGuidelines t7610-mergetool: prefer test_config over git config
| * | | | difftool: don't assume that default sh is saneda/mergetool-tool-helpCharles Bailey2014-10-152-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git-difftool used to create a command list script containing $( ... ) and explicitly calls "sh -c" with this list. Instead, allow mergetool --tool-help to take a mode parameter and call mergetool directly to invoke the show_tool_help function. This mode parameter is intented for use solely by difftool. Signed-off-by: Charles Bailey <cbailey32@bloomberg.net> Helped-by: John Keeping <john@keeping.me.uk> Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | | mergetool: don't require a work tree for --tool-helpCharles Bailey2014-10-151-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Charles Bailey <cbailey32@bloomberg.net> Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | | git-sh-setup: move GIT_DIR initialization into a functionDavid Aguilar2014-10-151-2/+6
| | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | | mergetool: use more conservative temporary filenamesDavid Aguilar2014-10-151-5/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Avoid filenames with multiple dots so that overly-picky tools do not misinterpret their extension. Previously, foo/bar.ext in the worktree would result in e.g. ./foo/bar.ext.BASE.1234.ext This can be improved by having only a single .ext and using underscore instead of dot so that the extension cannot be misinterpreted. The resulting path becomes: ./foo/bar_BASE_1234.ext Suggested-by: Sergio Ferrero <sferrero@ensoftcorp.com> Helped-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | | test-lib-functions: adjust style to match CodingGuidelinesDavid Aguilar2014-10-151-12/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Prefer "test" over "[ ]" for conditionals. Prefer "$()" over backticks for command substitutions. Avoid control structures on a single line with semicolons. Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | | t7610-mergetool: prefer test_config over git configDavid Aguilar2014-10-151-11/+9
| | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | | | Merge branch 'da/mergetool-temporary-filename'Junio C Hamano2014-10-211-5/+11
|\ \ \ \ \ | | |/ / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Tweak the names of the three throw-away files "git mergetool" comes up with to feed the merge tool backend, so that a file with a single dot in its name in the original (e.g. "hello.c") will have only one dot in these variants (e.g. "hello_BASE_4321.c"). * da/mergetool-temporary-filename: mergetool: use more conservative temporary filenames
| * | | | mergetool: use more conservative temporary filenamesda/mergetool-temporary-filenameDavid Aguilar2014-10-161-5/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Avoid filenames with multiple dots so that overly-picky tools do not misinterpret their extension. Previously, foo/bar.ext in the worktree would result in e.g. ./foo/bar.ext.BASE.1234.ext This can be improved by having only a single .ext and using underscore instead of dot so that the extension cannot be misinterpreted. The resulting path becomes: ./foo/bar_BASE_1234.ext Suggested-by: Sergio Ferrero <sferrero@ensoftcorp.com> Helped-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | | | Merge branch 'da/mergetool-tests'Junio C Hamano2014-10-212-471/+469
|\ \ \ \ \ | |/ / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The clean-up of this test script was long overdue and is a very welcome change. * da/mergetool-tests: test-lib-functions: adjust style to match CodingGuidelines t7610-mergetool: use test_config to isolate tests t7610-mergetool: add missing && and remove commented-out code t7610-mergetool: use tabs instead of a mix of tabs and spaces
| * | | | test-lib-functions: adjust style to match CodingGuidelinesda/mergetool-testsDavid Aguilar2014-10-161-12/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Prefer "test" over "[ ]" for conditionals. Prefer "$()" over backticks for command substitutions. Avoid control structures on a single line with semicolons. Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | | t7610-mergetool: use test_config to isolate testsDavid Aguilar2014-10-161-5/+3
| |/ / / | | | | | | | | | | | | | | | | Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | t7610-mergetool: add missing && and remove commented-out codeDavid Aguilar2014-10-151-8/+2
| | | | | | | | | | | | | | | | | | | | Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | t7610-mergetool: use tabs instead of a mix of tabs and spacesDavid Aguilar2014-10-151-459/+459
| | | | | | | | | | | | | | | | | | | | Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | | Merge branch 'rs/ref-transaction'Junio C Hamano2014-10-2145-350/+849
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The API to update refs have been restructured to allow introducing a true transactional updates later. We would even allow storing refs in backends other than the traditional filesystem-based one. * rs/ref-transaction: (25 commits) ref_transaction_commit: bail out on failure to remove a ref lockfile: remove unable_to_lock_error refs.c: do not permit err == NULL remote rm/prune: print a message when writing packed-refs fails for-each-ref: skip and warn about broken ref names refs.c: allow listing and deleting badly named refs test: put tests for handling of bad ref names in one place packed-ref cache: forbid dot-components in refnames branch -d: simplify by using RESOLVE_REF_READING branch -d: avoid repeated symref resolution reflog test: test interaction with detached HEAD refs.c: change resolve_ref_unsafe reading argument to be a flags field refs.c: make write_ref_sha1 static fetch.c: change s_update_ref to use a ref transaction refs.c: ref_transaction_commit: distinguish name conflicts from other errors refs.c: pass a list of names to skip to is_refname_available refs.c: call lock_ref_sha1_basic directly from commit refs.c: refuse to lock badly named refs in lock_ref_sha1_basic rename_ref: don't ask read_ref_full where the ref came from refs.c: pass the ref log message to _create/delete/update instead of _commit ...
| * | | | ref_transaction_commit: bail out on failure to remove a refrs/ref-transactionJonathan Nieder2014-10-151-2/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When removal of a loose or packed ref fails, bail out instead of trying to finish the transaction. This way, a single error message can be printed (instead of multiple messages being concatenated by mistake) and the operator can try to solve the underlying problem before there is a chance to muck things up even more. In particular, when git fails to remove a ref, git goes on to try to delete the reflog. Exiting early lets us keep the reflog. When git succeeds in deleting a ref A and fails to remove a ref B, it goes on to try to delete both reflogs. It would be better to just remove the reflog for A, but that would be a more invasive change. Failing early means we keep both reflogs, which puts the operator in a good position to understand the problem and recover. A long term goal is to avoid these problems altogether and roll back the transaction on failure. That kind of transactionality will have to wait for a later series (the plan for which is to make all destructive work happen in a single update of the packed-refs file). Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Reviewed-by: Ronnie Sahlberg <sahlberg@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | | lockfile: remove unable_to_lock_errorJonathan Nieder2014-10-152-11/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The former caller uses unable_to_lock_message now. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Reviewed-by: Ronnie Sahlberg <sahlberg@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | | refs.c: do not permit err == NULLJonathan Nieder2014-10-151-19/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some functions that take a strbuf argument to append an error treat !err as an indication that the message should be suppressed (e.g., ref_update_reject_duplicates). Others write the message to stderr on !err (e.g., repack_without_refs). Others crash (e.g., ref_transaction_update). Some of these behaviors are for historical reasons and others were accidents. Luckily no callers pass err == NULL any more. Simplify by consistently requiring the strbuf argument. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Reviewed-by: Ronnie Sahlberg <sahlberg@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | | remote rm/prune: print a message when writing packed-refs failsRonnie Sahlberg2014-10-151-4/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Until v2.1.0-rc0~22^2~11 (refs.c: add an err argument to repack_without_refs, 2014-06-20), repack_without_refs forgot to provide an error message when commit_packed_refs fails. Even today, it only provides a message for callers that pass a non-NULL err parameter. Internal callers in refs.c pass non-NULL err but "git remote" does not. That means that "git remote rm" and "git remote prune" can fail without printing a message about why. Fix them by passing in a non-NULL err parameter and printing the returned message. This is the last caller to a ref handling function passing err == NULL. A later patch can drop support for err == NULL, avoiding such problems in the future. Signed-off-by: Ronnie Sahlberg <sahlberg@google.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Reviewed-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | | for-each-ref: skip and warn about broken ref namesRonnie Sahlberg2014-10-151-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Print a warning message for any bad ref names we find in the repo and skip them so callers don't have to deal with parsing them. It might be useful in the future to have a flag where we would not skip these refs for those callers that want to and are prepared (for example by using a --format argument with %0 as a delimiter after the ref name). Signed-off-by: Ronnie Sahlberg <sahlberg@google.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | | refs.c: allow listing and deleting badly named refsRonnie Sahlberg2014-10-155-38/+273
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We currently do not handle badly named refs well: $ cp .git/refs/heads/master .git/refs/heads/master.....@\*@\\. $ git branch fatal: Reference has invalid format: 'refs/heads/master.....@*@\.' $ git branch -D master.....@\*@\\. error: branch 'master.....@*@\.' not found. Users cannot recover from a badly named ref without manually finding and deleting the loose ref file or appropriate line in packed-refs. Making that easier will make it easier to tweak the ref naming rules in the future, for example to forbid shell metacharacters like '`' and '"', without putting people in a state that is hard to get out of. So allow "branch --list" to show these refs and allow "branch -d/-D" and "update-ref -d" to delete them. Other commands (for example to rename refs) will continue to not handle these refs but can be changed in later patches. Details: In resolving functions, refuse to resolve refs that don't pass the git-check-ref-format(1) check unless the new RESOLVE_REF_ALLOW_BAD_NAME flag is passed. Even with RESOLVE_REF_ALLOW_BAD_NAME, refuse to resolve refs that escape the refs/ directory and do not match the pattern [A-Z_]* (think "HEAD" and "MERGE_HEAD"). In locking functions, refuse to act on badly named refs unless they are being deleted and either are in the refs/ directory or match [A-Z_]*. Just like other invalid refs, flag resolved, badly named refs with the REF_ISBROKEN flag, treat them as resolving to null_sha1, and skip them in all iteration functions except for for_each_rawref. Flag badly named refs (but not symrefs pointing to badly named refs) with a REF_BAD_NAME flag to make it easier for future callers to notice and handle them specially. For example, in a later patch for-each-ref will use this flag to detect refs whose names can confuse callers parsing for-each-ref output. In the transaction API, refuse to create or update badly named refs, but allow deleting them (unless they try to escape refs/ and don't match [A-Z_]*). Signed-off-by: Ronnie Sahlberg <sahlberg@google.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | | test: put tests for handling of bad ref names in one placeRonnie Sahlberg2014-10-153-74/+84
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There's no straightforward way to grep for all tests dealing with invalid refs. Put them in a single test script so it is easy to see what functionality has not been exercised with bad ref names yet. Signed-off-by: Ronnie Sahlberg <sahlberg@google.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | | packed-ref cache: forbid dot-components in refnamesJonathan Nieder2014-10-152-16/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since v1.7.9-rc1~10^2 (write_head_info(): handle "extra refs" locally, 2012-01-06), this trick to keep track of ".have" refs that are only valid on the wire and not on the filesystem is not needed any more. Simplify by removing support for the REFNAME_DOT_COMPONENT flag. This means we'll be slightly stricter with invalid refs found in a packed-refs file or during clone. read_loose_refs() already checks for and skips refnames with .components so it is not affected. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Reviewed-by: Ronnie Sahlberg <sahlberg@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | | branch -d: simplify by using RESOLVE_REF_READINGRonnie Sahlberg2014-10-151-3/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When "git branch -d" reads the branch it is about to delete, it used to avoid passing the RESOLVE_REF_READING ('treat missing ref as error') flag because a symref pointing to a nonexistent ref would show up as missing instead of as something that could be deleted. To check if a ref is actually missing, we then check - is it a symref? - if not, did it resolve to null_sha1? Now we pass RESOLVE_REF_NO_RECURSE and the correct information is returned for a symref even when it points to a missing ref. Simplify by relying on RESOLVE_REF_READING. No functional change intended. Signed-off-by: Ronnie Sahlberg <sahlberg@google.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | | branch -d: avoid repeated symref resolutionJonathan Nieder2014-10-156-3/+68
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If a repository gets in a broken state with too much symref nesting, it cannot be repaired with "git branch -d": $ git symbolic-ref refs/heads/nonsense refs/heads/nonsense $ git branch -d nonsense error: branch 'nonsense' not found. Worse, "git update-ref --no-deref -d" doesn't work for such repairs either: $ git update-ref -d refs/heads/nonsense error: unable to resolve reference refs/heads/nonsense: Too many levels of symbolic links Fix both by teaching resolve_ref_unsafe a new RESOLVE_REF_NO_RECURSE flag and passing it when appropriate. Callers can still read the value of a symref (for example to print a message about it) with that flag set --- resolve_ref_unsafe will resolve one level of symrefs and stop there. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Reviewed-by: Ronnie Sahlberg <sahlberg@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | | reflog test: test interaction with detached HEADJunio C Hamano2014-10-151-0/+70
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A proposed patch produced broken HEAD reflog entries when checking out anything other than a branch. The testsuite still passed, so it took a few days for the bug to be noticed. Add tests checking the content of the reflog after detaching and reattaching HEAD so we don't have to rely on manual testing to catch such problems in the future. [jn: using 'log -g --format=%H' instead of parsing --oneline output, resetting state in each test so they can be safely reordered or skipped] Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Reviewed-by: Ronnie Sahlberg <sahlberg@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | | refs.c: change resolve_ref_unsafe reading argument to be a flags fieldRonnie Sahlberg2014-10-1528-92/+124
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | resolve_ref_unsafe takes a boolean argument for reading (a nonexistent ref resolves successfully for writing but not for reading). Change this to be a flags field instead, and pass the new constant RESOLVE_REF_READING when we want this behaviour. While at it, swap two of the arguments in the function to put output arguments at the end. As a nice side effect, this ensures that we can catch callers that were unaware of the new API so they can be audited. Give the wrapper functions resolve_refdup and read_ref_full the same treatment for consistency. Signed-off-by: Ronnie Sahlberg <sahlberg@google.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | | refs.c: make write_ref_sha1 staticRonnie Sahlberg2014-10-152-5/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | No external users call write_ref_sha1 any more so let's declare it static. Signed-off-by: Ronnie Sahlberg <sahlberg@google.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | | fetch.c: change s_update_ref to use a ref transactionRonnie Sahlberg2014-10-151-10/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change s_update_ref to use a ref transaction for the ref update. Signed-off-by: Ronnie Sahlberg <sahlberg@google.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | | refs.c: ref_transaction_commit: distinguish name conflicts from other errorsRonnie Sahlberg2014-10-152-12/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In _commit, ENOTDIR can happen in the call to lock_ref_sha1_basic, either when we lstat the new refname or if the name checking function reports that the same type of conflict happened. In both cases, it means that we can not create the new ref due to a name conflict. Start defining specific return codes for _commit. TRANSACTION_NAME_CONFLICT refers to a failure to create a ref due to a name conflict with another ref. TRANSACTION_GENERIC_ERROR is for all other errors. When "git fetch" is creating refs, name conflicts differ from other errors in that they are likely to be resolved by running "git remote prune <remote>". "git fetch" currently inspects errno to decide whether to give that advice. Once it switches to the transaction API, it can check for TRANSACTION_NAME_CONFLICT instead. Signed-off-by: Ronnie Sahlberg <sahlberg@google.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | | refs.c: pass a list of names to skip to is_refname_availableRonnie Sahlberg2014-10-151-18/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change is_refname_available to take a list of strings to exclude when checking for conflicts instead of just one single name. We can already exclude a single name for the sake of renames. This generalizes that support. ref_transaction_commit already tracks a set of refs that are being deleted in an array. This array is then used to exclude refs from being written to the packed-refs file. At some stage we will want to change this array to a struct string_list and then we can pass it to is_refname_available via the call to lock_ref_sha1_basic. That will allow us to perform transactions that perform multiple renames as long as there are no conflicts within the starting or ending state. For example, that would allow a single transaction that contains two renames that are both individually conflicting: m -> n/n n -> m/m No functional change intended yet. Signed-off-by: Ronnie Sahlberg <sahlberg@google.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | | refs.c: call lock_ref_sha1_basic directly from commitRonnie Sahlberg2014-10-151-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Skip using the lock_any_ref_for_update wrapper and call lock_ref_sha1_basic directly from the commit function. Signed-off-by: Ronnie Sahlberg <sahlberg@google.com> Reviewed-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | | refs.c: refuse to lock badly named refs in lock_ref_sha1_basicRonnie Sahlberg2014-10-151-2/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move the check for check_refname_format from lock_any_ref_for_update to lock_ref_sha1_basic. At some later stage we will get rid of lock_any_ref_for_update completely. This has no visible impact to callers except for the inability to lock badly named refs, which is not possible today already for other reasons.(*) Keep lock_any_ref_for_update as a no-op wrapper. It is the public facing version of this interface and keeping it as a separate function will make it easier to experiment with the internal lock_ref_sha1_basic signature. (*) For example, if lock_ref_sha1_basic checks the refname format and refuses to lock badly named refs, it will not be possible to delete such refs because the first step of deletion is to lock the ref. We currently already fail in that case because these refs are not recognized to exist: $ cp .git/refs/heads/master .git/refs/heads/echo...\*\* $ git branch -D .git/refs/heads/echo...\*\* error: branch '.git/refs/heads/echo...**' not found. This has been broken for a while. Later patches in the series will start repairing the handling of badly named refs. Signed-off-by: Ronnie Sahlberg <sahlberg@google.com> Reviewed-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | | rename_ref: don't ask read_ref_full where the ref came fromRonnie Sahlberg2014-10-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We call read_ref_full with a pointer to flags from rename_ref but since we never actually use the returned flags we can just pass NULL here instead. Signed-off-by: Ronnie Sahlberg <sahlberg@google.com> Reviewed-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | | refs.c: pass the ref log message to _create/delete/update instead of _commitRonnie Sahlberg2014-10-1511-44/+54
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change the ref transaction API so that we pass the reflog message to the create/delete/update functions instead of to ref_transaction_commit. This allows different reflog messages for each ref update in a multi-ref transaction. Signed-off-by: Ronnie Sahlberg <sahlberg@google.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | | refs.c: add an err argument to delete_ref_looseRonnie Sahlberg2014-10-151-4/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add an err argument to delete_ref_loose so that we can pass a descriptive error string back to the caller. Pass the err argument from transaction commit to this function so that transaction users will have a nice error string if the transaction failed due to delete_ref_loose. Signed-off-by: Ronnie Sahlberg <sahlberg@google.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | | wrapper.c: add a new function unlink_or_msgRonnie Sahlberg2014-10-152-0/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This behaves like unlink_or_warn except that on failure it writes the message to its 'err' argument, which the caller can display in an appropriate way or ignore. Signed-off-by: Ronnie Sahlberg <sahlberg@google.com> Reviewed-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | | refs.c: lock_ref_sha1_basic is used for all refsRonnie Sahlberg2014-10-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | lock_ref_sha1_basic is used to lock refs that sit directly in the .git dir such as HEAD and MERGE_HEAD in addition to the more ordinary refs under "refs/". Remove the note claiming otherwise. Signed-off-by: Ronnie Sahlberg <sahlberg@google.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>