In struct packed_ref_cache, keep a count of the number of users of the
data structure. Only free the packed ref cache when the reference
count goes to zero rather than when the packed ref cache is cleared.
This mechanism will be used to prevent the cache data structure from
being freed while it is being iterated over.
So far, only the reference in struct ref_cache::packed is counted;
other users will be adjusted in separate commits.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Handle simple transactions for the packed-refs file at the
packed_ref_cache level via new functions lock_packed_refs(),
commit_packed_refs(), and rollback_packed_refs().
Only allow the packed ref cache to be modified (via add_packed_ref())
while the packed refs file is locked.
Change clone to add the new references within a transaction.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
As we know, we can solve any problem in this manner. In this case,
the problem is to avoid freeing a packed refs cache while somebody is
using it. So add a level of indirection as a prelude to
reference-counting the packed refs cache.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Split pack_refs() into multiple passes:
* Iterate over loose refs. For each one that can be turned into a
packed ref, create a corresponding entry in the packed refs cache.
* Write the packed refs to the packed-refs file.
This change isolates the mutation of the packed-refs file to a single
place.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The repack_without_ref() function first removes the deleted ref from
the internal packed-refs list, then writes the packed-refs list to
disk, omitting any broken or stale entries. This patch splits that
second step into multiple passes:
* collect the list of refnames that should be deleted from packed_refs
* delete those refnames from the cache
* write the remainder to the packed-refs file
The purpose of this change is to make the "write the remainder" part
reusable.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Define memory ownership and lifetime rules for what for-each-ref
feeds to its callbacks (in short, "you do not own it, so make a
copy if you want to keep it").
* mh/reflife: (25 commits)
refs: document the lifetime of the args passed to each_ref_fn
register_ref(): make a copy of the bad reference SHA-1
exclude_existing(): set existing_refs.strdup_strings
string_list_add_refs_by_glob(): add a comment about memory management
string_list_add_one_ref(): rename first parameter to "refname"
show_head_ref(): rename first parameter to "refname"
show_head_ref(): do not shadow name of argument
add_existing(): do not retain a reference to sha1
do_fetch(): clean up existing_refs before exiting
do_fetch(): reduce scope of peer_item
object_array_entry: fix memory handling of the name field
find_first_merges(): remove unnecessary code
find_first_merges(): initialize merges variable using initializer
fsck: don't put a void*-shaped peg in a char*-shaped hole
object_array_remove_duplicates(): rewrite to reduce copying
revision: use object_array_filter() in implementation of gc_boundary()
object_array: add function object_array_filter()
revision: split some overly-long lines
cmd_diff(): make it obvious which cases are exclusive of each other
cmd_diff(): rename local variable "list" -> "entry"
...
Major update to the revision traversal logic to improve culling of
irrelevant parents while traversing a mergy history.
* kb/full-history-compute-treesame-carefully-2:
revision.c: make default history consider bottom commits
revision.c: don't show all merges for --parents
revision.c: discount side branches when computing TREESAME
revision.c: add BOTTOM flag for commits
simplify-merges: drop merge from irrelevant side branch
simplify-merges: never remove all TREESAME parents
t6012: update test for tweaked full-history traversal
revision.c: Make --full-history consider more merges
Documentation: avoid "uninteresting"
rev-list-options.txt: correct TREESAME for P
t6111: add parents to tests
t6111: allow checking the parents as well
t6111: new TREESAME test set
t6019: test file dropped in -s ours merge
decorate.c: compact table when growing
When a file (or a directory) called HEAD exists in the working tree,
internal calls git svn makes trigger "did you mean a revision or a
path?" ambiguity check.
$ git svn rebase
fatal: ambiguous argument 'HEAD': both revision and filename
Use '--' to separate paths from revisions, like this:
'git <command> [<revision>...] -- [<file>...]'
rev-list --first-parent --pretty=medium HEAD: command returned error: 128
Explicitly disambiguate by adding "--" after the revision.
Signed-off-by: Slava Kardakov <ojab@ojab.ru>
Reviewed-by: Jeff King <peff@peff.net>
Acked-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Blameview was a quick-and-dirty demonstration of how blame's
incremental output could be used in an interface. These days
one can find much better (and less ugly!) demonstrations in
"git gui blame" and "tig blame".
The only advantage blameview has is that its code is perhaps
simpler to read. However, that is balanced by the fact that
it probably has bugs, as nobody uses it nor has touched the
code in 6 years. An implementor is probably better off just
reading the "incremental output" section of "man git-blame".
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Use the SANITY prerequisite when testing if a temp file can
be created in a read only directory.
Skip the test under CYGWIN, or skip it under Unix/Linux when
it is run as root.
Signed-off-by: Torsten Bögershausen <tboegi@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"gitweb" forgot to clear a global variable $search_regexp upon each
request, mistakenly carrying over the previous search to a new one
when used as a persistent CGI.
* cm/gitweb-project-list-persistent-cgi-fix:
gitweb: fix problem causing erroneous project list
* rr/rebase-autostash:
rebase: implement --[no-]autostash and rebase.autostash
rebase --merge: return control to caller, for housekeeping
rebase -i: return control to caller, for housekeeping
am: return control to caller, for housekeeping
rebase: prepare to do generic housekeeping
rebase -i: don't error out if $state_dir already exists
am: tighten a conditional that checks for $dotest
"git cmd <name>", when <name> happens to be a 40-hex string,
directly uses the 40-hex string as an object name, even if a ref
"refs/<some hierarchy>/<name>" exists. This disambiguation order
is unlikely to change, but we should warn about the ambiguity just
like we warn when more than one refs/ hierachies share the same
name.
* nd/warn-ambiguous-object-name:
get_sha1: warn about full or short object names that look like refs
Update the low-level diffcore documentation on -S/-G and --pickaxe-all.
* rr/diffcore-pickaxe-doc:
diffcore-pickaxe doc: document -S and -G properly
diffcore-pickaxe: make error messages more consistent
These days, "git --work-tree=there cmd" without specifying an
explicit --git-dir=here will do the usual discovery, but we had a
description of older behaviour in the documentation.
* cr/git-work-tree-sans-git-dir:
git.txt: remove stale comment regarding GIT_WORK_TREE
Hint users when https:// connection failed to check the certificate.
* mm/mediawiki-https-fail-message:
git-remote-mediawiki: better error message when HTTP(S) access fails
* fc/remote-bzr:
remote-bzr: add fallback check for a partial clone
remote-bzr: reorganize the way 'wanted' works
remote-bzr: trivial cleanups
remote-bzr: change global repo
remote-bzr: delay cloning/pulling
remote-bzr: simplify get_remote_branch()
remote-bzr: fix for files with spaces
remote-bzr: recover from failed clones
Update build for Cygwin 1.[57]. Torsten Bögershausen reports that
this is fine with Cygwin 1.7 ($gmane/225824) so let's try moving it
ahead.
* rj/mingw-cygwin:
cygwin: Remove the CYGWIN_V15_WIN32API build variable
mingw: rename WIN32 cpp macro to GIT_WINDOWS_NATIVE
* rs/unpack-trees-plug-leak:
unpack-trees: free cache_entry array members for merges
diff-lib, read-tree, unpack-trees: mark cache_entry array paramters const
diff-lib, read-tree, unpack-trees: mark cache_entry pointers const
unpack-trees: create working copy of merge entry in merged_entry
unpack-trees: factor out dup_entry
read-cache: mark cache_entry pointers const
cache: mark cache_entry pointers const
When a reflog notation is used for implicit "current branch", we
did not say which branch and worse said "branch ''".
* rr/die-on-missing-upstream:
sha1_name: fix error message for @{<N>}, @{<date>}
sha1_name: fix error message for @{u}
githooks(5) says that "[...]the .sample files are executable by default"
which was not true.
Signed-off-by: Wieland Hoffmann <themineo@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Primarily to push out two regression issues that seem to affect many
people, namely, the ".gitignore !directory" bug and "daemon cannot
read from $HOME owned by root" bug.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Returning the SIGALRM handler for SIGINT is not very useful.
Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
A git daemon that starts as "root" and then drops privilege often
leaves $HOME set to that of the root user, which is unreadable by
the daemon process, which was diagnosed as a configuration error.
Make per-user configuration files that are inaccessible due to
EACCES as though these files do not exist to avoid this issue, as
the tightening which was originally meant as an additional security
has annoyed enough sysadmins.
* jn/config-ignore-inaccessible:
config: allow inaccessible configuration under $HOME
Fix recent regression of .gitignore files that list !directory to
mark it not-ignored.
* kb/status-ignored-optim-2:
dir.c: fix ignore processing within not-ignored directories
read_cache already performs the same check and returns immediately if
the cache has already been loaded.
Signed-off-by: René Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
A note in the beginning of this document describes the behavior already.
This patch just adds where to find the repositories.
Signed-off-by: Fredrik Gustafsson <iveqy@iveqy.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The bug is manifest when running gitweb in a persistent process (e.g.
FastCGI, PSGI), and it's easy to reproduce. If a gitweb request
includes the searchtext parameter (i.e. s), subsequent requests using
the project_list action--which is the default action--and without
a searchtext parameter will be filtered by the searchtext value of the
first request. This is because the value of the $search_regexp global
(the value of which is based on the searchtext parameter) is currently
being persisted between requests.
Instead, clear $search_regexp before dispatching each request.
Signed-off-by: Charles McGarvey <chazmcgarvey@brokenzipper.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When explaining the "--tags" option as an equivalent to giving an
explicit "refs/tags/*:refs/tags/*" refspec, the two asterisks were
misinterpreted by AsciiDoc as a request to typeset the string
segment between them in bold.
We could fix it in two ways. We can replace them with {asterisk}s
while keeping the string as body text, or we can mark it as a
literal string with backquotes around it.
Let's do the latter, as it is teaching the user an "exactly as
typed" alternative.
Noticed-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This set of patches collects a number of build fixes that have been
used on the msysgit port for a while and merging upstream should
simplify future maintenance.
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Merge tag 'post183-for-junio' of http://github.com/msysgit/git
Collected msysgit build patches for upstream
This set of patches collects a number of build fixes that have been
used on the msysgit port for a while and merging upstream should
simplify future maintenance.
* tag 'post183-for-junio' of http://github.com/msysgit/git:
Set the default help format to html for msys builds.
Ensure the resource file is rebuilt when the version changes.
Windows resource: handle dashes in the Git version gracefully
Provide a Windows version resource for the git executables.
msysgit: Add the --large-address-aware linker directive to the makefile.
Define NO_GETTEXT for Git for Windows
Makefile: Do not use OLD_ICONV on MINGW anymore
"git push $there HEAD:branch" did not resolve HEAD early enough, so
it was easy to flip it around while push is still going on and push
out a branch that the user did not originally intended when the
command was started.
* rr/push-head:
push: make push.default = current use resolved HEAD
push: fail early with detached HEAD and current
push: factor out the detached HEAD error message
