The "git apply" standalone program is being libified; this is the
first step to move many state variables into a structure that can
be explicitly (re)initialized to make the machinery callable more
than once.
The next step that moves some remaining state variables into the
structure and turns die()s into an error return that propagates up
to the caller is not queued yet but in flight. It would be good to
review the above first and give the remainder of the series a solid
base to build on.
* cc/apply-introduce-state: (50 commits)
builtin/apply: remove misleading comment on lock_file field
builtin/apply: move 'newfd' global into 'struct apply_state'
builtin/apply: add 'lock_file' pointer into 'struct apply_state'
builtin/apply: move applying patches into apply_all_patches()
builtin/apply: move 'state' check into check_apply_state()
builtin/apply: move 'symlink_changes' global into 'struct apply_state'
builtin/apply: move 'fn_table' global into 'struct apply_state'
builtin/apply: move 'state_linenr' global into 'struct apply_state'
builtin/apply: move 'max_change' and 'max_len' into 'struct apply_state'
builtin/apply: move 'ws_ignore_action' into 'struct apply_state'
builtin/apply: move 'ws_error_action' into 'struct apply_state'
builtin/apply: move 'applied_after_fixing_ws' into 'struct apply_state'
builtin/apply: move 'squelch_whitespace_errors' into 'struct apply_state'
builtin/apply: remove whitespace_option arg from set_default_whitespace_mode()
builtin/apply: move 'whitespace_option' into 'struct apply_state'
builtin/apply: move 'whitespace_error' global into 'struct apply_state'
builtin/apply: move 'root' global into 'struct apply_state'
builtin/apply: move 'p_value_known' global into 'struct apply_state'
builtin/apply: move 'p_value' global into 'struct apply_state'
builtin/apply: move 'has_include' global into 'struct apply_state'
...
"git rev-list --count" whose walk-length is limited with "-n"
option did not work well with the counting optimized to look at the
bitmap index.
* jk/rev-list-count-with-bitmap:
rev-list: disable bitmaps when "-n" is used with listing objects
rev-list: "adjust" results of "--count --use-bitmap-index -n"
We usually call a function that clears the contents a data
structure X without freeing the structure itself clear_X(), and
call a function that does clear_X() and also frees it free_X().
free_pathspec() function has been renamed to clear_pathspec()
to avoid confusion.
* jc/clear-pathspec:
pathspec: rename free_pathspec() to clear_pathspec()
"git worktree add" learned that '-' can be used as a short-hand for
"@{-1}", the previous branch.
* jg/dash-is-last-branch-in-worktree-add:
worktree: allow "-" short-hand for @{-1} in add command
An upstream project can make a recommendation to shallowly clone
some submodules in the .gitmodules file it ships.
* sb/submodule-recommend-shallowness:
submodule update: learn `--[no-]recommend-shallow` option
submodule-config: keep shallow recommendation around
"git pull --rebase --verify-signature" learned to warn the user
that "--verify-signature" is a no-op when rebasing.
* ah/no-verify-signature-with-pull-rebase:
pull: warn on --verify-signatures with --rebase
A bash-ism "local" has been removed from "git submodule" scripted
Porcelain.
* sb/submodule-helper-relative-path:
submodule: remove bashism from shell script
The way how "submodule--helper list" signals unmatch error to its
callers has been updated.
* sb/submodule-helper-list-signal-unmatch-via-exit-status:
submodule--helper: offer a consistent API
Just like pointer field like prefix, the piece of memory pointed at
by lock_file field is not owned by the apply_state structure. It is
true that the caller needs to be careful about the lifetime rule for
lockfile instances, but that is none of this API's business.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
To libify the apply functionality the 'newfd' variable should
not be static and global to the file. Let's move it into
'struct apply_state'.
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We cannot have a 'struct lock_file' allocated on the stack, as lockfile.c
keeps a linked list of all created lock_file structures.
Also 'struct apply_state' users might later want the same 'struct lock_file'
instance to be reused by different series of calls to the apply api.
So let's add a 'struct lock_file *lock_file' pointer into 'struct apply_state'
and have the user of 'struct apply_state' allocate memory for the actual
'struct lock_file' instance.
Let's also add an argument to init_apply_state(), so that the caller can
easily supply a pointer to the allocated instance.
Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
You can ask rev-list to use bitmaps to speed up an --objects
traversal, which should generally give you your answers much
faster.
Likewise, you can ask rev-list to limit such a traversal
with `-n`, in which case we'll show only a limited set of
commits (and only the tree and commit objects directly
reachable from those commits).
But if you do both together, the results are nonsensical. We
end up limiting any fallback traversal we do to _find_ the
bitmaps, but the actual set of objects we output will be
picked arbitrarily from the union of any bitmaps we do find,
and will involve the objects of many more commits.
It's possible that somebody might want this as a "show me
what you can, but limit the amount of work you do" flag.
But as with the prior commit clamping "--count", the results
are basically non-deterministic; you'll get the values from
some commits between `n` and the total number, and you can't
tell which.
And unlike the `--count` case, we can't easily generate the
"real" value from the bitmap values (you can't just walk
back `-n` commits and subtract out the reachable objects
from the boundary commits; the bitmaps for `X` record its
total reachability, so you don't know which objects are
directly from `X` itself, which from `X^`, and so on).
So let's just fallback to the non-bitmap code path in this
case, so we always give a sane answer.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If you ask rev-list for:
git rev-list --count --use-bitmap-index HEAD
we optimize out the actual traversal and just give you the
number of bits set in the commit bitmap. This is faster,
which is good.
But if you ask to limit the size of the traversal, like:
git rev-list --count --use-bitmap-index -n 100 HEAD
we'll still output the full bitmapped number we found. On
the surface, that might even seem OK. You explicitly asked
to use the bitmap index, and it was cheap to compute the
real answer, so we gave it to you.
But there's something much more complicated going on under
the hood. If we don't have a bitmap directly for HEAD, then
we have to actually traverse backwards, looking for a
bitmapped commit. And _that_ traversal is bounded by our
`-n` count.
This is a good thing, because it bounds the work we have to
do, which is probably what the user wanted by asking for
`-n`. But now it makes the output quite confusing. You might
get many values:
- your `-n` value, if we walked back and never found a
bitmap (or fewer if there weren't that many commits)
- the actual full count, if we found a bitmap root for
every path of our traversal with in the `-n` limit
- any number in between! We might have walked back and
found _some_ bitmaps, but then cut off the traversal
early with some commits not accounted for in the result.
So you cannot even see a value higher than your `-n` and say
"OK, bitmaps kicked in, this must be the real full count".
The only sane thing is for git to just clamp the value to a
maximum of the `-n` value, which means we should output the
exact same results whether bitmaps are in use or not.
The test in t5310 demonstrates this by using `-n 1`.
Without this patch we fail in the full-bitmap case (where we
do not have to traverse at all) but _not_ in the
partial-bitmap case (where we have to walk down to find an
actual bitmap). With this patch, both cases just work.
I didn't implement the crazy in-between case, just because
it's complicated to set up, and is really a subset of the
full-count case, which we do cover.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The function takes a pointer to a pathspec structure, and releases
the resources held by it, but does not free() the structure itself.
Such a function should be called "clear", not "free".
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio pointed out `relative_path` was using bashisms via the
local variables. As the longer term goal is to rewrite most of the
submodule code in C, do it now.
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In 48308681 (2016-02-29, git submodule update: have a dedicated helper
for cloning), the helper communicated errors back only via exit code,
and dance with printing '#unmatched' in case of error was left to
git-submodule.sh as it uses the output of the helper and pipes it into
shell commands. This change makes the helper consistent by never
printing '#unmatched' in the helper but always handling these piping
issues in the actual shell script.
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
To libify the apply functionality we should provide a function to
apply many patches. Let's move the code to do that into a new
apply_all_patches() function.
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
To libify the apply functionality we should provide a function
to check that the values in a 'struct apply_state' instance are
coherent. Let's move the code to do that into a new
check_apply_state() function.
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
To libify the apply functionality the 'symlink_changes' variable should
not be static and global to the file. Let's move it into
'struct apply_state'.
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
To libify the apply functionality the 'fn_table' variable should
not be static and global to the file. Let's move it into
'struct apply_state'.
As fn_table is cleared at the end of apply_patch(), it is not
necessary to clear it in clear_apply_state().
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
To libify the apply functionality the 'state_linenr' variable should
not be static and global to the file. Let's move it into
'struct apply_state'.
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
To libify the apply functionality the 'max_change' and 'max_len'
variables should not be static and global to the file. Let's move
them into 'struct apply_state'.
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
To libify the apply functionality the 'ws_ignore_action' variable should
not be static and global to the file. Let's move it into
'struct apply_state'.
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
To libify the apply functionality the 'ws_error_action' variable should
not be static and global to the file. Let's move it into
'struct apply_state'.
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
To libify the apply functionality the 'applied_after_fixing_ws' variable should
not be static and global to the file. Let's move it into
'struct apply_state'.
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
To libify the apply functionality the 'squelch_whitespace_errors' variable should
not be static and global to the file. Let's move it into
'struct apply_state'.
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
A previous change has move the whitespace_option variable from cmd_apply
into 'struct apply_state', so that we can now avoid passing it separately
to set_default_whitespace_mode().
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This will enable further refactoring, and it is more coherent and
simpler if all the option_parse_*() functions are passed a
'struct apply_state' instance in opt->value.
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
To libify the apply functionality the 'whitespace_error' variable should
not be static and global to the file. Let's move it into
'struct apply_state'.
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
To libify the apply functionality the 'root' variable should
not be static and global to the file. Let's move it into
'struct apply_state'.
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
To libify the apply functionality the 'p_value_known' variable should
not be static and global to the file. Let's move it into
'struct apply_state'.
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
To libify the apply functionality the 'p_value' variable should
not be static and global to the file. Let's move it into
'struct apply_state'.
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
To libify the apply functionality the 'has_include' variable should
not be static and global to the file. Let's move it into
'struct apply_state'.
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
To libify the apply functionality the 'limit_by_name' variable should
not be static and global to the file. Let's move it into
'struct apply_state'.
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
To libify the apply functionality the 'patch_input_file' variable should
not be static and global to the file. Let's move it into
'struct apply_state'.
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
To libify the apply functionality the 'apply' variable should
not be static and global to the file. Let's move it into
'struct apply_state'.
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
To libify the apply functionality the 'p_context' variable should
not be static and global to the file. Let's move it into
'struct apply_state'.
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
To libify the apply functionality the 'fake_ancestor' variable should
not be static and global to the file. Let's move it into
'struct apply_state'.
By the way remove a comment about '--index-info' that was renamed
'--build-fake-ancestor' in commit 26b2800768
(apply: get rid of --index-info in favor of --build-fake-ancestor,
Sep 17 2007).
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
To libify the apply functionality the 'line_termination' variable should
not be static and global to the file. Let's move it into
'struct apply_state'.
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
To libify the apply functionality the 'unsafe_paths' variable should
not be static and global to the file. Let's move it into
'struct apply_state'.
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
To libify the apply functionality the 'no_add' variable should
not be static and global to the file. Let's move it into
'struct apply_state'.
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
To libify the apply functionality the 'threeway' variable should
not be static and global to the file. Let's move it into
'struct apply_state'.
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
To libify the apply functionality the 'summary' variable should
not be static and global to the file. Let's move it into
'struct apply_state'.
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
To libify the apply functionality the 'numstat' variable should
not be static and global to the file. Let's move it into
'struct apply_state'.
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
To libify the apply functionality the 'diffstat' variable should
not be static and global to the file. Let's move it into
'struct apply_state'.
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
To libify the apply functionality the 'cached' variable should
not be static and global to the file. Let's move it into
'struct apply_state'.
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
To libify the apply functionality the 'allow_overlap' variable should
not be static and global to the file. Let's move it into
'struct apply_state'.
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
To libify the apply functionality the 'update_index' variable should
not be static and global to the file. Let's move it into
'struct apply_state'.
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
