Do not call get_ref_dir() from within free_ref_entry(), because that
triggers the reading of loose refs, only for them to be freed
immediately.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The function used to return NULL when asked to find the containing
directory for a ref that does not exist, allowing the caller to
omit iteration altogether. But a misconversion in an earlier change
"refs.c: extract function search_for_subdir()" started returning the
top-level directory entry, forcing callers to walk everything.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Instead of reading the whole directory of loose references the first
time any are needed, only read them on demand, one directory at a
time.
Use a new ref_entry flag bit REF_INCOMPLETE to indicate that the entry
represents a REF_DIR that hasn't been read yet. Whenever any entries
from such a directory are needed, read all of the loose references
from that directory.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The ref_cache can now be read from the ref_dir.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This means that a directory ref_entry contains all of the information
needed by read_loose_refs().
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
That is what all the callers want, so give it to them.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Convert all accesses of a ref_dir within a ref_entry to use this
function. This function will later be responsible for reading loose
references from disk on demand.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The new name better describes the function's purpose, and also makes
the old name available for a more suitable purpose.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Make it turtles all the way down. This affects the loose and packed
fields of ref_cache instances.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Prevent the string from being overwritten by other callers of
git_path() and friends before we are done using it.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This simplifies the bookkeeping and allows an (artificial) restriction
on refname component length to be removed.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Previously, the "dir" argument to get_ref_dir() was a pointer to the
top-level ref_dir. Change the function to expect a pointer to the
ref_dir corresponding to dirname. This allows entries to be added
directly to dir, without having to recurse through the reference trie
each time (i.e., we can use add_entry_to_dir() instead of add_ref()).
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This removes some conditional code and makes it consistent with the
way that direntry names are stored. Please note that this function is
never used on the top-level .git directory; it is always called for
directories at level .git/refs or deeper.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This simplifies the bookkeeping and allows an (artificial) restriction
on refname component length to be removed.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Allows walking only a sub-hierarchy in refs/*.
By Michael Haggerty
* mh/ref-api:
do_for_each_ref(): only iterate over the subtree that was requested
refs: store references hierarchically
sort_ref_dir(): simplify logic
refs.c: rename ref_array -> ref_dir
struct ref_entry: nest the value part in a union
check_refname_component(): return 0 for zero-length components
free_ref_entry(): new function
names_conflict(): simplify implementation
repack_without_ref(): reimplement using do_for_each_ref_in_array()
do_for_each_ref_in_arrays(): new function
do_for_each_ref_in_array(): new function
refs: manage current_ref within do_one_ref()
refs.c: reorder definitions more logically
"git push --recurse-submodules" learns to optionally look into the
histories of submodules bound to the superproject and push them out.
By Heiko Voigt
* hv/submodule-recurse-push:
push: teach --recurse-submodules the on-demand option
Refactor submodule push check to use string list instead of integer
Teach revision walking machinery to walk multiple times sequencially
In HTTP with keep-alive it's not uncommon for the client to notice that
the server decided to stop maintaining the current connection only when
sending a new request. This naturally results in -EPIPE and possibly
SIGPIPE.
The subversion library itself makes no provision for SIGPIPE. Some
combinations of the underlying libraries do (typically SIG_IGN-ing it),
some don't.
Presumably for that reason all subversion commands set SIGPIPE to
SIG_IGN early in their main()-s.
So should we.
This, together with the previous patch, fixes the notorious "git-svn
died of signal 13" problem (see e.g.
http://thread.gmane.org/gmane.comp.version-control.git/134936).
Signed-off-by: Roman Kagan <rkagan@mail.ru>
Acked-by: Eric Wong <normalperson@yhbt.net>
In order to maintain consistency of the database mapping svn revision
numbers to git commit ids, rev_map_set() defers signal processing until
it's finished with an append transaction.[*]
The conventional way to achieve this is through sigprocmask(), which is
available in perl in the standard POSIX module.
This is implemented by this patch. One important consequence of it is
that the signal handlers won't be unconditionally set to SIG_DFL anymore
upon the first invocation of rev_map_set() as they used to. As a
result, the signals ignored by git-svn parent will remain ignored;
otherwise the behavior remains the same.
This patch paves the way to ignoring SIGPIPE throughout git-svn which
will be done in the followup patch.
[*] Deferring signals is not enough to ensure the database consistency:
the program may die on SIGKILL or power loss, run out of disk space,
etc. However that's a separate issue that this patch doesn't address.
Signed-off-by: Roman Kagan <rkagan@mail.ru>
Acked-by: Eric Wong <normalperson@yhbt.net>
Fix two places that were the only place in the test suite that gave "a\+"
to platform grep and expected it to mean one or more "a", which is a
blatant GNUism.
* bw/test-fix-grep-gnuism:
t9400: fix gnuism in grep
By Jonathan Nieder
* jn/more-i18ncmp:
test: am of empty patch should not succeed
test: use test_i18ncmp for "Patch format detection failed" message
test: do not rely on US English tracking-info messages
"git fetch" that recurses into submodules on demand did not check if
it needs to go into submodules when non branches (most notably, tags)
are fetched.
By Jens Lehmann
* jl/maint-submodule-recurse-fetch:
submodules: recursive fetch also checks new tags for submodule commits
"git blame" started missing quite a few changes from the origin since we
stopped using the diff minimalization by default in v1.7.2 era.
* jc/maint-blame-minimal:
blame: accept --need-minimal
"log -p --graph" used with "--stat" had a few formatting error.
By Lucian Poston
* lp/maint-diff-three-dash-with-graph:
t4202: add test for "log --graph --stat -p" separator lines
log --graph: fix break in graph lines
log --graph --stat: three-dash separator should come after graph lines
Setting up a revision traversal with many starting points was inefficient
as these were placed in a date-order priority queue one-by-one.
By René Scharfe (3) and Junio C Hamano (1)
* rs/commit-list-sort-in-batch:
mergesort: rename it to llist_mergesort()
revision: insert unsorted, then sort in prepare_revision_walk()
commit: use mergesort() in commit_list_sort_by_date()
add mergesort() for linked lists
Valgrind reports quite a lot of discarded memory inside apply.
Fix them, audit and document the buffer ownership rules.
By Junio C Hamano (8) and Jared Hance (1)
* jh/apply-free-patch:
apply: document buffer ownership rules across functions
apply: tighten constness of line buffer
apply: drop unused macro
apply: free unused fragments for submodule patch
apply: free patch->result
apply: release memory for fn_table
apply: free patch->{def,old,new}_name fields
apply: rename free_patch() to free_patch_list()
apply: do not leak patches and fragments
Make it easier for distros to document custom pager and editor they
used when building their binary releases in "git var" documentation.
By Jonathan Nieder
* jn/debian-customizes-default-editor:
var doc: advertise current DEFAULT_PAGER and DEFAULT_EDITOR settings
var doc: default editor and pager are configurable at build time
"git rev-parse --show-prefix" emitted nothing when run at the
top-level of the working tree, while "git rev-parse --show-cdup" gave
an empty line. Make them consistent.
By Ross Lagerwall
* rl/show-empty-prefix:
rev-parse --show-prefix: add in trailing newline
Adds some subcommands that were not listed in "git remote --help"
usage strings.
As an independent follow-up, we may want to rethink how the overall
usage string and subcommand usage strings are maintained.
By Michael Schubert
* ms/remote-usage-string:
remote: update builtin usage
Giving "--continue" to a conflicted "rebase -i" session skipped a commit
that only results in changes to submodules.
By John Keeping
* jk/rebase-i-submodule-conflict-only:
rebase -i continue: don't skip commits that only change submodules
Mops up an unfortunate fallout from bw/spawn-via-shell-path topic.
By Johannes Sixt
* js/spawn-via-shell-path-fix:
Do not use SHELL_PATH from build system in prepare_shell_cmd on Windows
Break down the cases in which "git push" fails due to non-ff into
three categories, and give separate advise messages for each case.
By Christopher Tiwald (2) and Jeff King (1)
* ct/advise-push-default:
Fix httpd tests that broke when non-ff push advice changed
clean up struct ref's nonfastforward field
push: Provide situational hints for non-fast-forward errors
When PATH contains an unreadable directory, alias expansion code did not
kick in, and failed with an error that said "git-subcmd" was not found.
By Jeff King (1) and Ramsay Jones (1)
* jk/run-command-eacces:
run-command: treat inaccessible directories as ENOENT
compat/mingw.[ch]: Change return type of exec functions to int
Fix broken 'push to upstream' implementation. "git push $there" without
refspec, when the current branch is set to push to a remote different from
$there, used to push to $there using the upstream information to a remote
unreleated to $there.
* jc/push-upstream-sanity:
push: error out when the "upstream" semantics does not make sense
When "git am -3" needs to fall back to an application to a synthesized
preimage followed by a 3-way merge, the paths that needed such treatment
are now reported to the end user, so that the result in them can be
eyeballed with extra care.
* jc/am-report-3way:
am -3: list the paths that needed 3-way fallback
"git am" learned the "--include" option, which is an opposite of existing
the "--exclude" option.
By Johannes Berg
* jb/am-include:
am: support --include option
Michael Haggerty