Commit Graph

7877 Commits

Author SHA1 Message Date
be27fb7b28 mktree: drop unused length parameter
The mktree_line() function does not actually look at the "len" parameter
it is passed, and assumes the buffer it receives is NUL-terminated.
Since the caller always passes a strbuf, this will be true. Let's drop
the useless parameter.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-13 14:22:54 +09:00
3c1dce8835 clone: drop dest parameter from copy_alternates()
Ever since the inception of this function in e6baf4a1ae (clone: clone
from a repository with relative alternates, 2011-08-22), the "dest"
parameter has been unused. Instead, we use add_to_alternates_file(),
which relies on git_pathdup() to find the right file. That in turn works
because we will have initialized and entered the destination repo by
this point.

It's a bit subtle, but this is how it has always worked. And if our
assumptions change, the test in t5601 from e6baf4a1ae should let us
know.

In the meantime, let's drop this unused and confusing parameter from
copy_alternates().

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-13 14:22:54 +09:00
cf7a901ae4 submodule: drop unused prefix parameter from some functions
We stopped using the "prefix" parameter of
relocate_single_git_dir_into_superproject() and its callers in
202275b96b (submodule.c: get_super_prefix_or_empty, 2017-03-14), where
we switched to using the environment global directly.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-13 14:22:54 +09:00
d64db5b334 builtin: consistently pass cmd_* prefix to parse_options
If a builtin uses RUN_SETUP to request that git.c enter the repository
directory, we'll get passed in a "prefix" variable with the path to the
original directory.  It's important to pass this to parse_options(),
since we may use it to fix up relative OPT_FILENAME() options. Some
builtins don't bother; let's make sure we do so consistently.

There may not be any particular bugs fixed here; OPT_FILENAME is
actually pretty rare, and none of these commands use it directly.
However, this does future-proof us against somebody adding an option
that uses it and creating a subtle bug that only shows up when you're in
a subdirectory of the repository.

In some cases, like hash-object and upload-pack, we don't specify
RUN_SETUP, so we know the prefix will always be empty. It's still worth
passing the variable along to keep the idiom consistent across all
builtins (and of course it protects us if they ever _did_ switch to
using RUN_SETUP).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-13 14:22:53 +09:00
76a7bc092e cmd_{read,write}_tree: rename "unused" variable that is used
The "prefix" variable passed by git.c into the builtin cmd_read_tree()
and cmd_write_tree() functions is named "unused_prefix". But we do in
fact pass it to parse_options(), which may use the prefix to adjust any
filename options. Let's get rid of this confusing name.

However, we can't just call it "prefix". The reason these variables were
renamed in the first place is that they shadowed local variables named
"prefix", because these commands both take a "--prefix" option.

So let's rename the parameters, but try to reduce further confusion:

  1. In both cases we'll call them "cmd_prefix" to mark that they're
     part of the cmd_* interface.

  2. In cmd_write_tree(), we'll rename the local prefix variable to
     "tree_prefix" to make it more clear that we're talking about the
     prefix to be used for the tree we're writing.

  3. In cmd_read_tree(), the "prefix" local has since migrated into
     "struct unpack_trees_options". We'll leave that alone, as the
     context within the struct makes its meaning clear (we actually
     _could_ just call the parameter "prefix" now, but that invites
     confusion in the other direction).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-13 14:22:53 +09:00
b64335554a merge: remove drop_save() in favor of remove_merge_branch_state()
Both remove_branch_state() and drop_save() delete almost the same set of
files about the current merge state. The only difference is MERGE_RR but
it should also be cleaned up after a successful merge, which is what
drop_save() is for.

Make a new function that deletes all merge-related state files and use
it instead of drop_save(). This function will also be used in the next
patch that introduces --quit.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-13 11:49:14 +09:00
f3a3a021c7 difftool --no-index: error out on --dir-diff (and don't crash)
In `--no-index` mode, we now no longer require a worktree nor a
repository. But some code paths in `difftool` expect those to be
present.

The most notable such code path is the `--dir-diff` one: we use the
existing checkout machinery to copy the files, and that machinery looks
up replacement refs, looks at alternate ODBs, wants to use the worktree
path, etc.

Rather than running into segmentation faults, let's die with an
informative error message.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-09 16:29:27 +09:00
a54b2ab345 tag: fix typo in nested tagging hint
In eea9c1e78f (tag: advise on nested tags, 2019-04-04), tag was taught
to hint at the user if a nested tag is made. However, this message had a
typo and it said "The object referred to by your new is...", which was
missing a "tag" after "new". Fix this message by adding the "tag".

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-09 15:10:38 +09:00
caa227ff45 Merge branch 'js/misc-doc-fixes'
"make check-docs", "git help -a", etc. did not account for cases
where a particular build may deliberately omit some subcommands,
which has been corrected.

* js/misc-doc-fixes:
  Turn `git serve` into a test helper
  test-tool: handle the `-C <directory>` option just like `git`
  check-docs: do not bother checking for legacy scripts' documentation
  docs: exclude documentation for commands that have been excluded
  check-docs: allow command-list.txt to contain excluded commands
  help -a: do not list commands that are excluded from the build
  Makefile: drop the NO_INSTALL variable
  remote-testgit: move it into the support directory for t5801
2019-05-09 00:37:27 +09:00
6d3df8ef01 Merge branch 'jt/clone-server-option'
"git clone" learned a new --server-option option when talking over
the protocol version 2.

* jt/clone-server-option:
  clone: send server options when using protocol v2
  transport: die if server options are unsupported
2019-05-09 00:37:25 +09:00
ea2dab1abb Merge branch 'tb/unexpected'
Code tightening against a "wrong" object appearing where an object
of a different type is expected, instead of blindly assuming that
the connection between objects are correctly made.

* tb/unexpected:
  rev-list: detect broken root trees
  rev-list: let traversal die when --missing is not in use
  get_commit_tree(): return NULL for broken tree
  list-objects.c: handle unexpected non-tree entries
  list-objects.c: handle unexpected non-blob entries
  t: introduce tests for unexpected object types
  t: move 'hex2oct' into test-lib-functions.sh
2019-05-09 00:37:25 +09:00
0b179f3175 Merge branch 'nd/sha1-name-c-wo-the-repository'
Further code clean-up to allow the lowest level of name-to-object
mapping layer to work with a passed-in repository other than the
default one.

* nd/sha1-name-c-wo-the-repository: (34 commits)
  sha1-name.c: remove the_repo from get_oid_mb()
  sha1-name.c: remove the_repo from other get_oid_*
  sha1-name.c: remove the_repo from maybe_die_on_misspelt_object_name
  submodule-config.c: use repo_get_oid for reading .gitmodules
  sha1-name.c: add repo_get_oid()
  sha1-name.c: remove the_repo from get_oid_with_context_1()
  sha1-name.c: remove the_repo from resolve_relative_path()
  sha1-name.c: remove the_repo from diagnose_invalid_index_path()
  sha1-name.c: remove the_repo from handle_one_ref()
  sha1-name.c: remove the_repo from get_oid_1()
  sha1-name.c: remove the_repo from get_oid_basic()
  sha1-name.c: remove the_repo from get_describe_name()
  sha1-name.c: remove the_repo from get_oid_oneline()
  sha1-name.c: add repo_interpret_branch_name()
  sha1-name.c: remove the_repo from interpret_branch_mark()
  sha1-name.c: remove the_repo from interpret_nth_prior_checkout()
  sha1-name.c: remove the_repo from get_short_oid()
  sha1-name.c: add repo_for_each_abbrev()
  sha1-name.c: store and use repo in struct disambiguate_state
  sha1-name.c: add repo_find_unique_abbrev_r()
  ...
2019-05-09 00:37:25 +09:00
ce2a18f2b1 Merge branch 'cc/replace-graft-peel-tags'
When given a tag that points at a commit-ish, "git replace --graft"
failed to peel the tag before writing a replace ref, which did not
make sense because the old graft mechanism the feature wants to
mimick only allowed to replace one commit object with another.
This has been fixed.

* cc/replace-graft-peel-tags:
  replace: peel tag when passing a tag first to --graft
  replace: peel tag when passing a tag as parent to --graft
  t6050: redirect expected error output to a file
  t6050: use test_line_count instead of wc -l
2019-05-09 00:37:24 +09:00
b877cb4a7e Merge branch 'dl/merge-cleanup-scissors-fix'
The list of conflicted paths shown in the editor while concluding a
conflicted merge was shown above the scissors line when the
clean-up mode is set to "scissors", even though it was commented
out just like the list of updated paths and other information to
help the user explain the merge better.

* dl/merge-cleanup-scissors-fix:
  cherry-pick/revert: add scissors line on merge conflict
  sequencer.c: save and restore cleanup mode
  merge: add scissors line on merge conflict
  merge: cleanup messages like commit
  parse-options.h: extract common --cleanup option
  commit: extract cleanup_mode functions to sequencer
  t7502: clean up style
  t7604: clean up style
  t3507: clean up style
  t7600: clean up style
2019-05-09 00:37:24 +09:00
3d67555744 Merge branch 'jk/pack-objects-reports-num-objects-to-trace2'
The "git pack-objects" command learned to report the number of
objects it packed via the trace2 mechanism.

* jk/pack-objects-reports-num-objects-to-trace2:
  pack-objects: write objects packed to trace2
2019-05-09 00:37:23 +09:00
4ab701b2ee Merge branch 'km/empty-repo-is-still-a-repo'
Running "git add" on a repository created inside the current
repository is an explicit indication that the user wants to add it
as a submodule, but when the HEAD of the inner repository is on an
unborn branch, it cannot be added as a submodule.  Worse, the files
in its working tree can be added as if they are a part of the outer
repository, which is not what the user wants.  These problems are
being addressed.

* km/empty-repo-is-still-a-repo:
  add: error appropriately on repository with no commits
  dir: do not traverse repositories with no commits
  submodule: refuse to add repository with no commits
2019-05-09 00:37:23 +09:00
a198562341 Merge branch 'dl/warn-tagging-a-tag'
"git tag" learned to give an advice suggesting it might be a
mistake when creating an annotated or signed tag that points at
another tag.

* dl/warn-tagging-a-tag:
  tag: advise on nested tags
  tag: fix formatting
2019-05-09 00:37:22 +09:00
96379f043f Merge branch 'en/merge-directory-renames'
"git merge-recursive" backend recently learned a new heuristics to
infer file movement based on how other files in the same directory
moved.  As this is inherently less robust heuristics than the one
based on the content similarity of the file itself (rather than
based on what its neighbours are doing), it sometimes gives an
outcome unexpected by the end users.  This has been toned down to
leave the renamed paths in higher/conflicted stages in the index so
that the user can examine and confirm the result.

* en/merge-directory-renames:
  merge-recursive: switch directory rename detection default
  merge-recursive: give callers of handle_content_merge() access to contents
  merge-recursive: track information associated with directory renames
  t6043: fix copied test description to match its purpose
  merge-recursive: switch from (oid,mode) pairs to a diff_filespec
  merge-recursive: cleanup handle_rename_* function signatures
  merge-recursive: track branch where rename occurred in rename struct
  merge-recursive: remove ren[12]_other fields from rename_conflict_info
  merge-recursive: shrink rename_conflict_info
  merge-recursive: move some struct declarations together
  merge-recursive: use 'ci' for rename_conflict_info variable name
  merge-recursive: rename locals 'o' and 'a' to 'obuf' and 'abuf'
  merge-recursive: rename diff_filespec 'one' to 'o'
  merge-recursive: rename merge_options argument from 'o' to 'opt'
  Use 'unsigned short' for mode, like diff_filespec does
2019-05-09 00:37:22 +09:00
1a8787144d submodule--helper: add a missing \n
This is a complete line. We're not expecting the next function to add
anything to the same line.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-08 19:36:19 +09:00
a8f6855f48 format-patch: make --base patch-id output stable
We weren't flushing the context each time we processed a hunk in the
patch-id generation code in diff.c, but we were doing that when we
generated "stable" patch-ids with the 'patch-id' tool. Let's port that
similar logic over from patch-id.c into diff.c so we can get the same
hash when we're generating patch-ids for 'format-patch --base=' types of
command invocations.

Cc: Xiaolong Ye <xiaolong.ye@intel.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-08 19:27:43 +09:00
64404a24cf midx: pass a repository pointer
Much of the multi-pack-index code focuses on the multi_pack_index
struct, and so we only pass a pointer to the current one. However,
we will insert a dependency on the packed_git linked list in a
future change, so we will need a repository reference. Inserting
these parameters is a significant enough change to split out.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-07 13:48:41 +09:00
6e9381469e branch: add worktree info on verbose output
To display worktree path for refs checked out in a linked worktree

Signed-off-by: Nickolai Belakovski <nbelakovski@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-07 13:45:55 +09:00
ab3138146f branch: update output to include worktree info
The output of git branch is modified to mark branches checked out in a
linked worktree with a "+" and color them in cyan (in contrast to the
current branch, which will still be denoted with a "*" and colored in green)

This is meant to communicate to the user that the branches that are
marked or colored will behave differently from other branches if the user
attempts to check them out or delete them, since branches checked out in
another worktree cannot be checked out or deleted.

Signed-off-by: Nickolai Belakovski <nbelakovski@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-07 13:45:54 +09:00
80f537f79c doc: promote "git restore"
The new command "git restore" (together with "git switch") are added
to avoid the confusion of one-command-do-all "git checkout" for new
users. They are also helpful to avoid ambiguous context.

For these reasons, promote it everywhere possible. This includes
documentation, suggestions/advice from other commands.

One nice thing about git-restore is the ability to restore
"everything", so it can be used in "git status" advice instead of both
"git checkout" and "git reset".  The three commands suggested by "git
status" are add, rm and restore.

"git checkout" is also removed from "git help" (i.e. it's no longer
considered a commonly used command)

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-07 13:04:48 +09:00
2f0896ec3a restore: support --patch
git-restore is different from git-checkout that it only restores the
worktree by default, not both worktree and index. add--interactive
needs some update to support this mode.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-07 13:04:47 +09:00
a5e5f399ca restore: replace --force with --ignore-unmerged
Use a more specific option name to express its purpose. --force may come
back as an alias of --ignore-unmerged and possibly more. But since this
is a destructive operation, I don't see why we need to "force" anything
more. We already don't hold back.

When 'checkout --force' or 'restore --ignore-unmerged' is used, we may
also print warnings about unmerged entries being ignore. Since this is
not exactly warning (people tell us to do so), more informational, let
it be suppressed if --quiet is given. This is a behavior change for
git-checkout.

PS. The diff looks a bit iffy since --force is moved to
add_common_switch_branch_options() (i.e. for switching). But
git-checkout is also doing switching and inherits this --force.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-07 13:04:47 +09:00
3a733ce523 restore: default to --source=HEAD when only --staged is specified
"git restore --staged" without --source does not make much sense since
by default we restore from the index.  Instead of copying the index to
itself, set the default source to HEAD in this case, yielding behavior
that matches "git reset -- <paths>".

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-07 13:04:47 +09:00
e3ddd3b5e5 restore: reject invalid combinations with --staged
git-checkout rejects plenty of invalid option combinations. Since
git-checkout is equivalent of either

    git restore --source --staged --worktree

or

    git restore --worktree

that still leaves the new mode 'git restore --index' unprotected. Reject
some more invalid option combinations.

The other new mode 'restore --source --worktree' does not need anything
else.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-07 13:04:47 +09:00
183fb44fd2 restore: add --worktree and --staged
'git checkout <tree-ish> <pathspec>' updates both index and
worktree. But updating the index when you want to restore worktree
files is non-intuitive. The index contains the data ready for the next
commit, and there's no indication that the user will want to commit
the restored versions.

'git restore' therefore by default only touches worktree. The user has
the option to update either the index with

    git restore --staged --source=<tree> <path>  (1)

or update both with

    git restore --staged --worktree --source=<tree> <path> (2)

PS. Orignally I wanted to make worktree update default and form (1)
would add index update while also updating the worktree, and the user
would need to do "--staged --no-worktree" to update index only. But it
looks really confusing that "--staged" option alone updates both. So
now form (2) is used for both, which reads much more obvious.

PPS. Yes form (1) overlaps with "git reset <rev> <path>". I don't know
if we can ever turn "git reset" back to "_always_ reset HEAD and
optionally do something else".

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-07 13:04:47 +09:00
4058199c0e checkout: factor out worktree checkout code
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-07 13:04:47 +09:00
a6cfb9ba36 restore: disable overlay mode by default
Overlay mode is considered confusing when the command is about
restoring files on worktree. Disable it by default. The user can still
turn it on, or use 'git checkout' which still has overlay mode on by
default.

While at it, make the check in checkout_branch() stricter. Neither
--overlay or --no-overlay should be accepted in branch switching mode.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-07 13:04:47 +09:00
be8ed5022b restore: make pathspec mandatory
"git restore" without arguments does not make much sense when
it's about restoring files (what files now?). We could default to
either

    git restore .

or

    git restore :/

Neither is intuitive. Make the user always give pathspec, force the
user to think the scope of restore they want because this is a
destructive operation.

"git restore -p" without pathspec is an exception to this
because it really is a separate mode. It will be treated as running
patch mode on the whole worktree.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-07 13:04:47 +09:00
c9c935f6d4 restore: take tree-ish from --source option instead
This is another departure from 'git checkout' syntax, which uses -- to
separate ref and pathspec. The observation is restore (or "git
checkout -- <pathspec>") is most often used to restore some files from
the index. If this is correct, we can simplify it by taking away the
ref, so that we can write

    git restore some-file

without worrying about some-file being a ref and whether we need to do

    git restore -- some-file

for safety. If the source of the restore comes from a tree, it will be
in the form of an option with value, e.g.

    git restore --source=this-tree some-file

This is of course longer to type than using "--". But hopefully it
will not be used as often, and it is clearly easier to understand.

dwim_new_local_branch is no longer set (or unset) in cmd_restore_files()
because it's irrelevant because we don't really care about dwim-ing.
With accept_ref being unset, dwim can't happen.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-07 13:04:47 +09:00
46e91b663b checkout: split part of it to new command 'restore'
Previously the switching branch business of 'git checkout' becomes a
new command 'switch'. This adds the restore command for the checking
out paths path.

Similar to git-switch, a new man page is added to describe what the
command will become. The implementation will be updated shortly to
match the man page.

A couple main differences from 'git checkout <paths>':

- 'restore' by default will only update worktree. This matters more
  when --source is specified ('checkout <tree> <paths>' updates both
  worktree and index).

- 'restore --staged' can be used to restore the index. This command
  overlaps with 'git reset <paths>'.

- both worktree and index could also be restored at the same time
  (from a tree) when both --staged and --worktree are specified. This
  overlaps with 'git checkout <tree> <paths>'

- default source for restoring worktree and index is the index and
  HEAD respectively. A different (tree) source could be specified as
  with --source (*).

- when both index and worktree are restored, --source must be
  specified since the default source for these two individual targets
  are different (**)

- --no-overlay is enabled by default, if an entry is missing in the
  source, restoring means deleting the entry

(*) I originally went with --from instead of --source. I still think
  --from is a better name. The short option -f however is already
  taken by force. And I do think short option is good to have, e.g. to
  write -s@ or -s@^ instead of --source=HEAD.

(**) If you sit down and think about it, moving worktree's source from
  the index to HEAD makes sense, but nobody is really thinking it
  through when they type the commands.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-07 13:04:47 +09:00
5c387428f1 parse-options: don't emit "ambiguous option" for aliases
Change the option parsing machinery so that e.g. "clone --recurs ..."
doesn't error out because "clone" understands both "--recursive" and
"--recurse-submodules" to mean the same thing.

Initially "clone" just understood --recursive until the
--recurses-submodules alias was added in ccdd3da652 ("clone: Add the
--recurse-submodules option as alias for --recursive",
2010-11-04). Since bb62e0a99f ("clone: teach --recurse-submodules to
optionally take a pathspec", 2017-03-17) the longer form has been
promoted to the default.

But due to the way the options parsing machinery works this resulted
in the rather absurd situation of:

    $ git clone --recurs [...]
    error: ambiguous option: recurs (could be --recursive or --recurse-submodules)

Add OPT_ALIAS() to express this link between two or more options and use
it in git-clone. Multiple aliases of an option could be written as

    OPT_ALIAS(0, "alias1", "original-name"),
    OPT_ALIAS(0, "alias2", "original-name"),
    ...

The current implementation is not exactly optimal in this case. But we
can optimize it when it becomes a problem. So far we don't even have two
aliases of any option.

A big chunk of code is actually from Junio C Hamano.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-07 12:23:22 +09:00
8e712ef6fc Honor core.precomposeUnicode in more places
On Mac's HFS where git sets core.precomposeUnicode to true automatically
by git init/clone, when a user creates a simple unicode refname (in NFC
format) such as españa:

  $ git branch españa

different commands would display the branch name differently.  For
example, git branch, git log --decorate, and git fast-export all used

  65 73 70 61 c3 b1 61  (or "espa\xc3\xb1a")

(NFC form) while show-ref would use

  65 73 70 61 6e cc 83 61  (or "espan\xcc\x83a")

(NFD form).  A stress test for git filter-repo was tripped up by this
inconsistency, though digging in I found that the problems could
compound; for example, if the user ran

  $ git pack-refs --all

and then tried to check out the branch, they would be met with:

  $ git checkout españa
  error: pathspec 'españa' did not match any file(s) known to git

  $ git checkout españa --
  fatal: invalid reference: españa

  $ git branch
    españa
  * master

Note that the user could run the `git branch` command first and copy and
paste the `españa` portion of the output and still see the same two
errors.  Also, if the user added --no-prune to the pack-refs command,
then they would see three branches: master, españa, and españa (those
last two are NFC vs. NFD forms, even if they render the same).

Further, if the user had the `españa` branch checked out before
running `git pack-refs --all`, the user would be greeted with (note
that I'm trimming trailing output with an ellipsis):

  $ git rev-parse HEAD
  fatal: ambiguous argument 'HEAD': unknown revision or path...

  $ git status
  On branch españa

  No commits yet...

Or worse, if the user didn't check this stuff first, running `git
commit` will create a new commit with all changes of all of history
being squashed into it.

In addition to pack-refs, one could also get into this state with
upload-pack or anything that calls either pack-refs or upload-pack (e.g.
gc or clone).

Add code in a few places (pack-refs, show-ref, upload-pack) to check and
honor the setting of core.precomposeUnicode to avoid these bugs.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-04-26 10:54:03 +09:00
f1c9f6ce38 Merge branch 'nd/submodule-foreach-quiet'
"git submodule foreach <command> --quiet" did not pass the option
down correctly, which has been corrected.

* nd/submodule-foreach-quiet:
  submodule foreach: fix "<command> --quiet" not being respected
2019-04-25 16:41:24 +09:00
d8620d3ca7 Merge branch 'sg/blame-in-bare-start-at-head'
"git blame -- path" in a non-bare repository starts blaming from
the working tree, and the same command in a bare repository errors
out because there is no working tree by definition.  The command
has been taught to instead start blaming from the commit at HEAD,
which is more useful.

* sg/blame-in-bare-start-at-head:
  blame: default to HEAD in a bare repo when no start commit is given
2019-04-25 16:41:21 +09:00
503f5809e8 Merge branch 'tg/ls-files-debug-format-fix'
Debugging code fix.

* tg/ls-files-debug-format-fix:
  ls-files: use correct format string
2019-04-25 16:41:20 +09:00
01f8d78887 Merge branch 'dl/submodule-set-branch'
"git submodule" learns "set-branch" subcommand that allows the
submodule.*.branch settings to be modified.

* dl/submodule-set-branch:
  submodule: teach set-branch subcommand
  submodule--helper: teach config subcommand --unset
  git-submodule.txt: "--branch <branch>" option defaults to 'master'
2019-04-25 16:41:18 +09:00
d4e568b2a3 Merge branch 'bc/hash-transition-16'
Conversion from unsigned char[20] to struct object_id continues.

* bc/hash-transition-16: (35 commits)
  gitweb: make hash size independent
  Git.pm: make hash size independent
  read-cache: read data in a hash-independent way
  dir: make untracked cache extension hash size independent
  builtin/difftool: use parse_oid_hex
  refspec: make hash size independent
  archive: convert struct archiver_args to object_id
  builtin/get-tar-commit-id: make hash size independent
  get-tar-commit-id: parse comment record
  hash: add a function to lookup hash algorithm by length
  remote-curl: make hash size independent
  http: replace sha1_to_hex
  http: compute hash of downloaded objects using the_hash_algo
  http: replace hard-coded constant with the_hash_algo
  http-walker: replace sha1_to_hex
  http-push: remove remaining uses of sha1_to_hex
  http-backend: allow 64-character hex names
  http-push: convert to use the_hash_algo
  builtin/pull: make hash-size independent
  builtin/am: make hash size independent
  ...
2019-04-25 16:41:17 +09:00
da924b58ed Merge branch 'sg/index-pack-progress'
A progress indicator has been added to the "index-pack" step, which
often makes users wait for completion during "git clone".

* sg/index-pack-progress:
  index-pack: show progress while checking objects
2019-04-25 16:41:15 +09:00
a5e4be2f68 Merge branch 'ab/commit-graph-fixes'
Code cleanup with more careful error checking before using data
read from the commit-graph file.

* ab/commit-graph-fixes:
  commit-graph: improve & i18n error messages
  commit-graph write: don't die if the existing graph is corrupt
  commit-graph verify: detect inability to read the graph
  commit-graph: don't pass filename to load_commit_graph_one_fd_st()
  commit-graph: don't early exit(1) on e.g. "git status"
  commit-graph: fix segfault on e.g. "git status"
  commit-graph tests: test a graph that's too small
  commit-graph tests: split up corrupt_graph_and_verify()
2019-04-25 16:41:15 +09:00
4a3ed2bec6 Merge branch 'nd/checkout-m'
"git checkout -m <other>" was about carrying the differences
between HEAD and the working-tree files forward while checking out
another branch, and ignored the differences between HEAD and the
index.  The command has been taught to abort when the index and the
HEAD are different.

* nd/checkout-m:
  checkout: prevent losing staged changes with --merge
  read-tree: add --quiet
  unpack-trees: rename "gently" flag to "quiet"
  unpack-trees: keep gently check inside add_rejected_path
2019-04-25 16:41:14 +09:00
f3c19f85c5 Merge branch 'ab/gc-reflog'
Fix various glitches in "git gc" around reflog handling.

* ab/gc-reflog:
  gc: handle & check gc.reflogExpire config
  reflog tests: assert lack of early exit with expiry="never"
  reflog tests: test for the "points nowhere" warning
  reflog tests: make use of "test_config" idiom
  gc: refactor a "call me once" pattern
  gc: convert to using the_hash_algo
  gc: remove redundant check for gc_auto_threshold
2019-04-25 16:41:14 +09:00
b72e90712e Merge branch 'js/difftool-no-index'
"git difftool" can now run outside a repository.

* js/difftool-no-index:
  difftool: allow running outside Git worktrees with --no-index
  parse-options: make OPT_ARGUMENT() more useful
  difftool: remove obsolete (and misleading) comment
2019-04-25 16:41:14 +09:00
e313c768e0 Merge branch 'nd/commit-a-with-paths-msg-update'
The message given when "git commit -a <paths>" errors out has been
updated.

* nd/commit-a-with-paths-msg-update:
  commit: improve error message in "-a <paths>" case
2019-04-25 16:41:13 +09:00
dcd6a8c09a Merge branch 'nd/diff-parseopt-4'
Fourth batch to teach the diff machinery to use the parse-options
API.

* nd/diff-parseopt-4:
  am: avoid diff_opt_parse()
  diff --no-index: use parse_options() instead of diff_opt_parse()
  range-diff: use parse_options() instead of diff_opt_parse()
  diff.c: allow --no-color-moved-ws
  diff-parseopt: convert --color-moved-ws
  diff-parseopt: convert --[no-]color-moved
  diff-parseopt: convert --inter-hunk-context
  diff-parseopt: convert --no-prefix
  diff-parseopt: convert --line-prefix
  diff-parseopt: convert --[src|dst]-prefix
  diff-parseopt: convert --[no-]abbrev
  diff-parseopt: convert --diff-filter
  diff-parseopt: convert --find-object
  diff-parseopt: convert -O
  diff-parseopt: convert --pickaxe-all|--pickaxe-regex
  diff-parseopt: convert -S|-G
  diff-parseopt: convert -l
  diff-parseopt: convert -z
  diff-parseopt: convert --ita-[in]visible-in-index
  diff-parseopt: convert --ws-error-highlight
2019-04-25 16:41:12 +09:00
4284497396 Merge branch 'jk/unused-params-even-more'
Code cleanup.

* jk/unused-params-even-more:
  parse_opt_ref_sorting: always use with NONEG flag
  pretty: drop unused strbuf from parse_padding_placeholder()
  pretty: drop unused "type" parameter in needs_rfc2047_encoding()
  parse-options: drop unused ctx parameter from show_gitcomp()
  fetch_pack(): drop unused parameters
  report_path_error(): drop unused prefix parameter
  unpack-trees: drop unused error_type parameters
  unpack-trees: drop name_entry from traverse_by_cache_tree()
  test-date: drop unused "now" parameter from parse_dates()
  update-index: drop unused prefix_length parameter from do_reupdate()
  log: drop unused "len" from show_tagger()
  log: drop unused rev_info from early output
  revision: drop some unused "revs" parameters
2019-04-25 16:41:12 +09:00
e62e68d359 Merge branch 'ag/sequencer-reduce-rewriting-todo'
The scripted version of "git rebase -i" wrote and rewrote the todo
list many times during a single step of its operation, and the
recent C-rewrite made a faithful conversion of the logic to C.  The
implementation has been updated to carry necessary information
around in-core to avoid rewriting the same file over and over
unnecessarily.

* ag/sequencer-reduce-rewriting-todo:
  rebase--interactive: move transform_todo_file()
  sequencer: use edit_todo_list() in complete_action()
  rebase-interactive: rewrite edit_todo_list() to handle the initial edit
  rebase-interactive: append_todo_help() changes
  rebase-interactive: use todo_list_write_to_file() in edit_todo_list()
  sequencer: refactor skip_unnecessary_picks() to work on a todo_list
  rebase--interactive: move rearrange_squash_in_todo_file()
  rebase--interactive: move sequencer_add_exec_commands()
  sequencer: change complete_action() to use the refactored functions
  sequencer: make sequencer_make_script() write its script to a strbuf
  sequencer: refactor rearrange_squash() to work on a todo_list
  sequencer: refactor sequencer_add_exec_commands() to work on a todo_list
  sequencer: refactor check_todo_list() to work on a todo_list
  sequencer: introduce todo_list_write_to_file()
  sequencer: refactor transform_todos() to work on a todo_list
  sequencer: remove the 'arg' field from todo_item
  sequencer: make the todo_list structure public
  sequencer: changes in parse_insn_buffer()
2019-04-25 16:41:11 +09:00