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2011-09-06Merge branch 'mh/check-ref-format-print-normalize'Junio C Hamano
* mh/check-ref-format-print-normalize: Forbid DEL characters in reference names check-ref-format --print: Normalize refnames that start with slashes
2011-08-29Merge branch 'nd/maint-clone-gitdir'Junio C Hamano
* nd/maint-clone-gitdir: clone: allow to clone from .git file read_gitfile_gently(): rename misnamed function to read_gitfile()
2011-08-27Forbid DEL characters in reference namesMichael Haggerty
DEL is an ASCII control character and therefore should not be permitted in reference names. Add tests for this and other unusual characters. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-22read_gitfile_gently(): rename misnamed function to read_gitfile()Junio C Hamano
The function was not gentle at all to the callers and died without giving them a chance to deal with possible errors. Rename it to read_gitfile(), and update all the callers. As no existing caller needs a true "gently" variant, we do not bother adding one at this point. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-18Merge branch 'js/ref-namespaces'Junio C Hamano
* js/ref-namespaces: ref namespaces: tests ref namespaces: documentation ref namespaces: Support remote repositories via upload-pack and receive-pack ref namespaces: infrastructure Fix prefix handling in ref iteration functions
2011-07-06ref namespaces: infrastructureJosh Triplett
Add support for dividing the refs of a single repository into multiple namespaces, each of which can have its own branches, tags, and HEAD. Git can expose each namespace as an independent repository to pull from and push to, while sharing the object store, and exposing all the refs to operations such as git-gc. Storing multiple repositories as namespaces of a single repository avoids storing duplicate copies of the same objects, such as when storing multiple branches of the same source. The alternates mechanism provides similar support for avoiding duplicates, but alternates do not prevent duplication between new objects added to the repositories without ongoing maintenance, while namespaces do. To specify a namespace, set the GIT_NAMESPACE environment variable to the namespace. For each ref namespace, git stores the corresponding refs in a directory under refs/namespaces/. For example, GIT_NAMESPACE=foo will store refs under refs/namespaces/foo/. You can also specify namespaces via the --namespace option to git. Note that namespaces which include a / will expand to a hierarchy of namespaces; for example, GIT_NAMESPACE=foo/bar will store refs under refs/namespaces/foo/refs/namespaces/bar/. This makes paths in GIT_NAMESPACE behave hierarchically, so that cloning with GIT_NAMESPACE=foo/bar produces the same result as cloning with GIT_NAMESPACE=foo and cloning from that repo with GIT_NAMESPACE=bar. It also avoids ambiguity with strange namespace paths such as foo/refs/heads/, which could otherwise generate directory/file conflicts within the refs directory. Add the infrastructure for ref namespaces: handle the GIT_NAMESPACE environment variable and --namespace option, and support iterating over refs in a namespace. Signed-off-by: Josh Triplett <josh@joshtriplett.org> Signed-off-by: Jamey Sharp <jamey@minilop.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-07-06Fix prefix handling in ref iteration functionsJosh Triplett
The do_for_each_ref iteration function accepts a prefix and a trim, and checks for the prefix on each ref before passing in that ref; it also supports trimming off part of the ref before passing it. However, do_for_each_ref used trim as the length of the prefix to check, ignoring the actual length of the prefix. Switch to using prefixcmp, checking the entire length of the prefix string, to properly support a trim value different than the length of the prefix. Several callers passed a prefix of "refs/" to filter out everything outside of refs/, but a trim of 0 to avoid trimming off the "refs/"; the trim of 0 meant that the filter of "refs/" no longer applied. Change these callers to pass an empty prefix instead, to avoid changing the existing behavior. Various callers count on this lack of filtering, such as receive-pack which uses add_extra_ref to add alternates as refs named ".have"; adding filtering would break that, causing t5501-fetch-push-alternates.sh to fail. That lack of filtering doesn't currently have any other effect, since the loose ref functions can never supply refs outside of "refs/", and packed-refs will not normally include such refs unless manually edited. Signed-off-by: Josh Triplett <josh@joshtriplett.org> Signed-off-by: Jamey Sharp <jamey@minilop.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-06-30Merge branch 'jc/maint-1.7.3-checkout-describe'Junio C Hamano
* jc/maint-1.7.3-checkout-describe: checkout -b <name>: correctly detect existing branch
2011-06-16Fix typo: existant->existentDmitry Ivankov
refs.c had a error message "Trying to write ref with nonexistant object". And no tests relied on the wrong spelling. Also typo was present in some test scripts internals, these tests still pass. Signed-off-by: Dmitry Ivankov <divanorama@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-06-06checkout -b <name>: correctly detect existing branchJunio C Hamano
When create a new branch, we fed "refs/heads/<proposed name>" as a string to get_sha1() and expected it to fail when a branch already exists. The right way to check if a ref exists is to check with resolve_ref(). A naïve solution that might appear attractive but does not work is to forbid slashes in get_describe_name() but that will not work. A describe name is is in the form of "ANYTHING-g<short sha1>", and that ANYTHING part comes from a original tag name used in the repository the user ran the describe command. A sick user could have a confusing hierarchical tag whose name is "refs/heads/foobar" (stored as refs/tags/refs/heads/foobar") to generate a describe name "refs/heads/foobar-6-g02ac983", and we should be able to use that name to refer to the object whose name is 02ac983. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-08-22Merge branch 'hv/submodule-find-ff-merge'Junio C Hamano
* hv/submodule-find-ff-merge: Implement automatic fast-forward merge for submodules setup_revisions(): Allow walking history in a submodule Teach ref iteration module about submodules Conflicts: submodule.c
2010-07-07Merge branch 'maint'Junio C Hamano
* maint: backmerge a few more fixes to 1.7.1.X series rev-parse: fix --parse-opt --keep-dashdash --stop-at-non-option fix git branch -m in presence of cross devices Conflicts: RelNotes builtin/rev-parse.c
2010-07-07setup_revisions(): Allow walking history in a submoduleHeiko Voigt
By passing the path to a submodule in opt->submodule, the function can be used to walk history in the named submodule repository, instead of the toplevel repository. Signed-off-by: Heiko Voigt <hvoigt@hvoigt.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-07-07Teach ref iteration module about submodulesHeiko Voigt
We will use this in a later patch to extend setup_revisions() to load revisions directly from a submodule. Signed-off-by: Heiko Voigt <hvoigt@hvoigt.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-07-07fix git branch -m in presence of cross devicesPierre Habouzit
When you have for example a bare repository stored on NFS, and that you create new workdirs locally (using contrib's git-new-workdir), logs/refs is a symlink to a different device. Hence when the reflogs are renamed, all must happen below logs/refs or one gets cross device rename errors like: git branch -m foo error: unable to move logfile logs/refs/heads/master to tmp-renamed-log: Invalid cross-device link fatal: Branch rename failed The fix is hence to use logs/refs/.tmp-renamed-log as a temporary log name, instead of just tmp-renamed-log. Signed-off-by: Pierre Habouzit <madcoder@debian.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-06-21Merge branch 'gv/portable'Junio C Hamano
* gv/portable: test-lib: use DIFF definition from GIT-BUILD-OPTIONS build: propagate $DIFF to scripts Makefile: Tru64 portability fix Makefile: HP-UX 10.20 portability fixes Makefile: HPUX11 portability fixes Makefile: SunOS 5.6 portability fix inline declaration does not work on AIX Allow disabling "inline" Some platforms lack socklen_t type Make NO_{INET_NTOP,INET_PTON} configured independently Makefile: some platforms do not have hstrerror anywhere git-compat-util.h: some platforms with mmap() lack MAP_FAILED definition test_cmp: do not use "diff -u" on platforms that lack one fixup: do not unconditionally disable "diff -u" tests: use "test_cmp", not "diff", when verifying the result Do not use "diff" found on PATH while building and installing enums: omit trailing comma for portability Makefile: -lpthread may still be necessary when libc has only pthread stubs Rewrite dynamic structure initializations to runtime assignment Makefile: pass CPPFLAGS through to fllow customization Conflicts: Makefile wt-status.h
2010-06-12log_ref_setup: don't return stack-allocated arrayThomas Rast
859c301 (refs: split log_ref_write logic into log_ref_setup, 2010-05-21) refactors the stack allocation of the log_file array into the new log_ref_setup() function, but passes it back to the caller. Since the original intent seems to have been to split the work between log_ref_setup and log_ref_write, make it the caller's responsibility to allocate the buffer. Signed-off-by: Thomas Rast <trast@student.ethz.ch> Reported-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-06-02refs: split log_ref_write logic into log_ref_setupErick Mattos
Separation of the logic for testing and preparing the reflogs from function log_ref_write to a new non static new function: log_ref_setup. This allows to be performed from outside the first all reasonable checks and procedures for writing reflogs. Signed-off-by: Erick Mattos <erick.mattos@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-05-31Rewrite dynamic structure initializations to runtime assignmentGary V. Vaughan
Unfortunately, there are still plenty of production systems with vendor compilers that choke unless all compound declarations can be determined statically at compile time, for example hpux10.20 (I can provide a comprehensive list of our supported platforms that exhibit this problem if necessary). This patch simply breaks apart any compound declarations with dynamic initialisation expressions, and moves the initialisation until after the last declaration in the same block, in all the places necessary to have the offending compilers accept the code. Signed-off-by: Gary V. Vaughan <gary@thewrittenword.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-03-30refs.c: Write reflogs for notes just like for branch headsMichael J Gruber
The notes code intends to write reflog entries, but currently they are not written because log_ref_write() checks for the refname path explicitly. Add refs/notes to the list of allowed paths so that notes references are treated just like branch heads, i.e. according to core.logAllRefUpdates and core.bare. Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net> Acked-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-03-24Merge branch 'tr/notes-display'Junio C Hamano
* tr/notes-display: git-notes(1): add a section about the meaning of history notes: track whether notes_trees were changed at all notes: add shorthand --ref to override GIT_NOTES_REF commit --amend: copy notes to the new commit rebase: support automatic notes copying notes: implement helpers needed for note copying during rewrite notes: implement 'git notes copy --stdin' rebase -i: invoke post-rewrite hook rebase: invoke post-rewrite hook commit --amend: invoke post-rewrite hook Documentation: document post-rewrite hook Support showing notes from more than one notes tree test-lib: unset GIT_NOTES_REF to stop it from influencing tests Conflicts: git-am.sh refs.c
2010-03-24Merge branch 'jc/maint-refs-dangling'Junio C Hamano
* jc/maint-refs-dangling: refs: ref entry with NULL sha1 is can be a dangling symref
2010-03-16refs: ref entry with NULL sha1 is can be a dangling symrefJunio C Hamano
Brandon Casey noticed that t5505 had accidentally broken its && chain, hiding inconsistency between the code that writes the warning to the standard output and the test that expects to see the warning on the standard error, which was introduced by f8948e2 (remote prune: warn dangling symrefs, 2009-02-08). It turns out that the issue is deeper than that. After f8948e2, a symref that is dangling is marked with a NULL sha1, and the idea of using NULL sha1 to mean a deleted ref was scrapped, but somehow a follow-up eafb452 (do_one_ref(): null_sha1 check is not about broken ref, 2009-07-22) incorrectly reorganized do_one_ref(), still thinking NULL sha1 is never used in the code. Fix this by: - adopt Brandon's fix to t5505 test; - introduce REF_BROKEN flag to mark a ref that fails to resolve (dangling symref); - move the check for broken ref back inside the "if we are skipping dangling refs" code block. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-03-13for_each_recent_reflog_ent(): use strbuf, fix offset handlingRené Scharfe
As Vladimir reported, "git log -g refs/stash" surprisingly showed the reflog of HEAD if the message in the reflog file was too long. To fix this, convert for_each_recent_reflog_ent() to use strbuf_getwholeline() instead of fgets(), for safety and to avoid any size limits for reflog entries. Also reverse the logic of the part of the function that only looks at file tails. It used to close the file if fgets() succeeded. The following fgets() call in the while loop was likely to fail in this case, too, so passing an offset to for_each_recent_reflog_ent() never worked. Change it to error out if strbuf_getwholeline() fails instead. Reported-by: Vladimir Panteleev <vladimir@thecybershadow.net> Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-03-13Support showing notes from more than one notes treeThomas Rast
With this patch, you can set notes.displayRef to a glob that points at your favourite notes refs, e.g., [notes] displayRef = refs/notes/* Then git-log and friends will show notes from all trees. Thanks to Junio C Hamano for lots of feedback, which greatly influenced the design of the entire series and this commit in particular. Signed-off-by: Thomas Rast <trast@student.ethz.ch> Acked-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-04Typofixes outside documentation areaJunio C Hamano
begining -> beginning canonicalizations -> canonicalization comand -> command dewrapping -> unwrapping dirtyness -> dirtiness DISCLAMER -> DISCLAIMER explicitely -> explicitly feeded -> fed impiled -> implied madatory -> mandatory mimick -> mimic preceeding -> preceding reqeuest -> request substition -> substitution Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-20rev-parse --branches/--tags/--remotes=patternIlari Liusvaara
Since local branch, tags and remote tracking branch namespaces are most often used, add shortcut notations for globbing those in manner similar to --glob option. With this, one can express the "what I have but origin doesn't?" as: 'git log --branches --not --remotes=origin' Original-idea-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Ilari Liusvaara <ilari.liusvaara@elisanet.fi> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-20rev-parse --globIlari Liusvaara
Add --glob=<glob-pattern> option to rev-parse and everything that accepts its options. This option matches all refs that match given shell glob pattern (complete with some DWIM logic). Example: 'git log --branches --not --glob=remotes/origin' To show what you have that origin doesn't. Signed-off-by: Ilari Liusvaara <ilari.liusvaara@elisanet.fi> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-11-10teach warn_dangling_symref to take a FILE argumentJay Soffian
Different callers of warn_dangling_symref() may want to control whether its output goes to stdout or stderr so let it take a FILE argument. Signed-off-by: Jay Soffian <jaysoffian@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-09-29git branch -D: give a better error message when lockfile creation failsMiklos Vajna
Previously the old error message just told the user that it was not possible to delete the ref from the packed-refs file. Give instructions on how to resolve the problem. Signed-off-by: Miklos Vajna <vmiklos@frugalware.org> Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2009-08-22Merge branch 'cc/replace'Junio C Hamano
* cc/replace: t6050: check pushing something based on a replaced commit Documentation: add documentation for "git replace" Add git-replace to .gitignore builtin-replace: use "usage_msg_opt" to give better error messages parse-options: add new function "usage_msg_opt" builtin-replace: teach "git replace" to actually replace Add new "git replace" command environment: add global variable to disable replacement mktag: call "check_sha1_signature" with the replacement sha1 replace_object: add a test case object: call "check_sha1_signature" with the replacement sha1 sha1_file: add a "read_sha1_file_repl" function replace_object: add mechanism to replace objects found in "refs/replace/" refs: add a "for_each_replace_ref" function
2009-07-29clean: require double -f options to nuke nested git repository and work treeJunio C Hamano
When you have an embedded git work tree in your work tree (be it an orphaned submodule, or an independent checkout of an unrelated project), "git clean -d -f" blindly descended into it and removed everything. This is rarely what the user wants. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-24Merge branch 'maint'Junio C Hamano
* maint: SunOS grep does not understand -C<n> nor -e Fix export_marks() error handling. git branch: clean up detached branch handling git branch: avoid unnecessary object lookups git branch: fix performance problem do_one_ref(): null_sha1 check is not about broken ref Conflicts: Makefile
2009-07-23do_one_ref(): null_sha1 check is not about broken refJunio C Hamano
f8948e2 (remote prune: warn dangling symrefs, 2009-02-08) introduced a more dangerous variant of for_each_ref() family that skips the check for dangling refs, but it also made another unrelated check optional by mistake. The check to see if a ref points at 0{40} is not about brokenness, but is about a possible future plan to represent a deleted ref by writing 40 "0" in a loose ref when there is a stale version of the same ref already in .git/packed-refs, so that we can implement deletion of a ref without having to rewrite the packed refs file excluding the ref being deleted. This check has to live outside of the conditional. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-18Merge branch 'maint'Junio C Hamano
* maint: checkout -f: deal with a D/F conflict entry correctly sha1_name.c: avoid unnecessary strbuf_release refs.c: release file descriptor on error return
2009-07-16refs.c: release file descriptor on error returnBrandon Casey
Signed-off-by: Brandon Casey <drafnel@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-27Convert existing die(..., strerror(errno)) to die_errno()Thomas Rast
Change calls to die(..., strerror(errno)) to use the new die_errno(). In the process, also make slight style adjustments: at least state _something_ about the function that failed (instead of just printing the pathname), and put paths in single quotes. Signed-off-by: Thomas Rast <trast@student.ethz.ch> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-01refs: add a "for_each_replace_ref" functionChristian Couder
This is some preparation work for the following patches that are using the "refs/replace/" ref namespace. Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-05-26Merge branch 'maint'Junio C Hamano
* maint: Prepare for 1.6.3.2 fix cat-file usage message and documentation fetch: report ref storage DF errors more accurately lock_ref: inform callers of unavailable ref merge-options.txt: Clarify merge --squash Conflicts: RelNotes
2009-05-26Merge branch 'ar/unlink-err' into maintJunio C Hamano
* ar/unlink-err: print unlink(2) errno in copy_or_link_directory replace direct calls to unlink(2) with unlink_or_warn Introduce an unlink(2) wrapper which gives warning if unlink failed
2009-05-25lock_ref: inform callers of unavailable refJeff King
One of the ways that locking might fail is that there is a DF conflict between two refs (e.g., you want to lock "foo/bar" but "foo" already exists). In this case, we return an error, but there is no way for the caller to know the specific problem. This patch sets errno to ENOTDIR, which is the most sensible code. It's what we would see if the refs were stored purely in the filesystem (but these days we must check the namespace manually due to packed refs). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-05-23Merge branch 'fc/decorate-tag'Junio C Hamano
* fc/decorate-tag: Prettify log decorations even more Change prettify_ref to prettify_refname
2009-05-23Merge branch 'rr/forbid-bs-in-ref'Junio C Hamano
* rr/forbid-bs-in-ref: Disallow '\' in ref names
2009-05-14Change prettify_ref to prettify_refnameFelipe Contreras
In preparation to be used when the ref object is not available Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com> Acked-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-05-09Disallow '\' in ref namesRobin Rosenberg
This is asking for trouble since '\' is a directory separator in Windows and thus may produce unpredictable results. Signed-off-by: Robin Rosenberg <robin.rosenberg@dewire.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-04-30replace direct calls to unlink(2) with unlink_or_warnAlex Riesen
This helps to notice when something's going wrong, especially on systems which lock open files. I used the following criteria when selecting the code for replacement: - it was already printing a warning for the unlink failures - it is in a function which already printing something or is called from such a function - it is in a static function, returning void and the function is only called from a builtin main function (cmd_) - it is in a function which handles emergency exit (signal handlers) - it is in a function which is obvously cleaning up the lockfiles Signed-off-by: Alex Riesen <raa.lkml@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-04-13shorten_unambiguous_ref(): add strict modeBert Wesarg
Add the strict mode of abbreviation to shorten_unambiguous_ref(), i.e. the resulting ref won't trigger the ambiguous ref warning. All users of shorten_unambiguous_ref() still use the loose mode. Signed-off-by: Bert Wesarg <bert.wesarg@googlemail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-04-12Merge branch 'jk/show-upstream'Junio C Hamano
* jk/show-upstream: branch: show upstream branch when double verbose make get_short_ref a public function for-each-ref: add "upstream" format field for-each-ref: refactor refname handling for-each-ref: refactor get_short_ref function
2009-04-12Merge branch 'cc/bisect-filter'Junio C Hamano
* cc/bisect-filter: (21 commits) rev-list: add "int bisect_show_flags" in "struct rev_list_info" rev-list: remove last static vars used in "show_commit" list-objects: add "void *data" parameter to show functions bisect--helper: string output variables together with "&&" rev-list: pass "int flags" as last argument of "show_bisect_vars" t6030: test bisecting with paths bisect: use "bisect--helper" and remove "filter_skipped" function bisect: implement "read_bisect_paths" to read paths in "$GIT_DIR/BISECT_NAMES" bisect--helper: implement "git bisect--helper" bisect: use the new generic "sha1_pos" function to lookup sha1 rev-list: call new "filter_skip" function patch-ids: use the new generic "sha1_pos" function to lookup sha1 sha1-lookup: add new "sha1_pos" function to efficiently lookup sha1 rev-list: pass "revs" to "show_bisect_vars" rev-list: make "show_bisect_vars" non static rev-list: move code to show bisect vars into its own function rev-list: move bisect related code into its own file rev-list: make "bisect_list" variable local to "cmd_rev_list" refs: add "for_each_ref_in" function to refactor "for_each_*_ref" functions quote: add "sq_dequote_to_argv" to put unwrapped args in an argv array ...
2009-04-08make get_short_ref a public functionJeff King
Often we want to shorten a full ref name to something "prettier" to show a user. For example, "refs/heads/master" is often shown simply as "master", or "refs/remotes/origin/master" is shown as "origin/master". Many places in the code use a very simple formula: skip common prefixes like refs/heads, refs/remotes, etc. This is codified in the prettify_ref function. for-each-ref has a more correct (but more expensive) approach: consider the ref lookup rules, and try shortening as much as possible while remaining unambiguous. This patch makes the latter strategy globally available as shorten_unambiguous_ref. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>