Commit Graph

18232 Commits

Author SHA1 Message Date
Heba Waly
bf66db37f1 add: use advise function to display hints
Use the advise function in advice.c to display hints to the users, as
it provides a neat and a standard format for hint messages, i.e: the
text is colored in yellow and the line starts by the word "hint:".

Also this will enable us to control the messages using advice.*
configuration variables.

Signed-off-by: Heba Waly <heba.waly@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-01-15 12:15:04 -08:00
Derrick Stolee
c958d3bd0a graph: fix collapse of multiple edges
This fix resolves the previously-added test_expect_failure in
t4215-log-skewed-merges.sh.

The issue lies in the "else" condition while updating the mapping
inside graph_output_collapsing_line(). In 0f0f389f (graph: tidy up
display of left-skewed merges, 2019-10-15), the output of left-
skewed merges was changed to allow an immediate horizontal edge in
the first parent, output by graph_output_post_merge_line() instead
of by graph_output_collapsing_line(). This condensed the first line
behavior as follows:

Before 0f0f389f:

	| | | | | | *-.
	| | | | | | |\ \
	| |_|_|_|_|/ | |
	|/| | | | | / /

After 0f0f389f:

	| | | | | | *
	| |_|_|_|_|/|\
	|/| | | | |/ /
	| | | | |/| /

However, a very subtle issue arose when the second and third parent
edges are collapsed in later steps. The second parent edge is now
immediately adjacent to a vertical edge. This means that the
condition

	} else if (graph->mapping[i - 1] < 0) {

in graph_output_collapsing_line() evaluates as false. The block for
this condition was the only place where we connected the target
column with the current position with horizontal edge markers.

In this case, the final "else" block is run, and the edge is marked
as horizontal, but did not back-fill the blank columns between the
target and the current edge. Since the second parent edge is marked
as horizontal, the third parent edge is not marked as horizontal.
This causes the output to continue as follows:

Before this change:

	| | | | | | *
	| |_|_|_|_|/|\
	|/| | | | |/ /
	| | | | |/| /
	| | | |/| |/
	| | |/| |/|
	| |/| |/| |
	| | |/| | |

By adding the logic for "filling" a horizontal edge between the
target column and the current column, we are able to resolve the
issue.

After this change:

	| | | | | | *
	| |_|_|_|_|/|\
	|/| | | | |/ /
	| | |_|_|/| /
	| |/| | | |/
	| | | |_|/|
	| | |/| | |

This output properly matches the expected blend of the edge
behavior before 0f0f389f and the merge commit rendering from
0f0f389f.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-01-15 12:14:51 -08:00
Derrick Stolee
8588932e20 graph: add test to demonstrate horizontal line bug
A previous test in t4215-log-skewed-merges.sh was added to demonstrate
exactly the topology of a reported failure in "git log --graph". While
investigating the fix, we realized that multiple edges that could
collapse with horizontal lines were not doing so.

Specifically, examine this section of the graph:

	| | | | | | *
	| |_|_|_|_|/|\
	|/| | | | |/ /
	| | | | |/| /
	| | | |/| |/
	| | |/| |/|
	| |/| |/| |
	| | |/| | |
	| | * | | |

Document this behavior with a test. This behavior is new, as the
behavior in v2.24.1 has the following output:

	| | | | | | *-.
	| | | | | | |\ \
	| |_|_|_|_|/ / /
	|/| | | | | / /
	| | |_|_|_|/ /
	| |/| | | | /
	| | | |_|_|/
	| | |/| | |
	| | * | | |

The behavior changed logically in 479db18b ("graph: smooth appearance
of collapsing edges on commit lines", 2019-10-15), but was actually
broken due to an assert() bug in 458152cc ("graph: example of graph
output that can be simplified", 2019-10-15). A future change could
modify this behavior to do the following instead:

	| | | | | | *
	| |_|_|_|_|/|\
	|/| | | | |/ /
	| | |_|_|/| /
	| |/| | | |/
	| | | |_|/|
	| | |/| | |
	| | * | | |

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-01-15 12:14:51 -08:00
Alexandr Miloslavskiy
d0d0a357a1 t: directly test parse_pathspec_file()
Previously, `parse_pathspec_file()` was tested indirectly by invoking
git commands with properly crafted inputs. As demonstrated by the
previous bugfix, testing complicated black boxes indirectly can lead to
tests that silently test the wrong thing.

Introduce direct tests for `parse_pathspec_file()`.

Signed-off-by: Alexandr Miloslavskiy <alexandr.miloslavskiy@syntevo.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-01-15 12:14:20 -08:00
Alexandr Miloslavskiy
568cabb2fe t: fix quotes tests for --pathspec-from-file
While working on the next patch, I also noticed that quotes testing via
`"\"file\\101.t\""` was somewhat incorrect: I escaped `\` one time while
I had to escape it two times! Tests still worked due to `"` being
preserved which in turn prevented pathspec from matching files.

Fix this by using here-doc instead.

Signed-off-by: Alexandr Miloslavskiy <alexandr.miloslavskiy@syntevo.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-01-15 12:14:20 -08:00
Alexandr Miloslavskiy
f94f7bd00d t: add tests for error conditions with --pathspec-from-file
Also move some old tests into the new tests: it doesn't seem reasonable
to have individual error condition tests.

Old test for `git commit` was corrected, previously it was instructed
to use stdin but wasn't provided with any stdin. While this works at
the moment, it's not exactly perfect.

Old tests for `git reset` were improved to test for a specific error
message.

Suggested-By: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Alexandr Miloslavskiy <alexandr.miloslavskiy@syntevo.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-01-15 12:14:15 -08:00
Johannes Schindelin
1e4ffc765d t3701: adjust difffilter test
In 42f7d45428 (add--interactive: detect bogus diffFilter output,
2018-03-03), we added a test case that verifies that the diffFilter
feature complains appropriately when the output is too short.

In preparation for the upcoming change where the built-in `add -p` is
taught to respect that setting, let's adjust that test a little. The
problem is that `echo too-short` is configured as diffFilter, and it
does not read the `stdin`. When calling it through `pipe_command()`, it
is therefore possible that we try to feed the `diff` to it while it is
no longer listening, and we receive a `SIGPIPE`.

The Perl code apparently handles this in a way similar to an
end-of-file, but taking a step back, we realize that a diffFilter that
does not even _look_ at its standard input is very unrealistic. The
entire point of this feature is to transform the diff, not to ignore it
altogether.

So let's modify the test case to reflect that insight: instead of
printing some bogus text, let's use a diffFilter that deletes the first
line of the diff instead.

This still tests for the same thing, but it does not confuse the
built-in `add -p` with that `SIGPIPE`.

Helped-by: SZEDER Gábor <szeder.dev@gmail.com>
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-01-15 12:06:16 -08:00
Kyle Meyer
c81638541c submodule add: show 'add --dry-run' stderr when aborting
Unless --force is specified, 'submodule add' checks if the destination
path is ignored by calling 'git add --dry-run --ignore-missing', and,
if that call fails, aborts with a custom "path is ignored" message (a
slight variant of what 'git add' shows).  Aborting early rather than
letting the downstream 'git add' call fail is done so that the command
exits before cloning into the destination path.  However, in rare
cases where the dry-run call fails for a reason other than the path
being ignored---for example, due to a preexisting index.lock
file---displaying the "ignored path" error message hides the real
source of the failure.

Instead of displaying the tailored "ignored path" message, let's
report the standard error from the dry run to give the caller more
accurate information about failures that are not due to an ignored
path.

For the ignored path case, this leads to the following change in the
error message:

  The following [-path is-]{+paths are+} ignored by one of your .gitignore files:
  <destination path>
  Use -f if you really want to add [-it.-]{+them.+}

The new phrasing is a bit awkward, because 'submodule add' is only
dealing with one destination path.  Alternatively, we could continue
to use the tailored message when the exit code is 1 (the expected
status for a failure due to an ignored path) and relay the standard
error for all other non-zero exits.  That, however, risks hiding the
message of unrelated failures that share an exit code of 1, so it
doesn't seem worth doing just to avoid a clunkier, but still clear,
error message.

Signed-off-by: Kyle Meyer <kyle@kyleam.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-01-15 10:22:24 -08:00
Kevin Willford
8da2c57629 fsmonitor: handle version 2 of the hooks that will use opaque token
Some file monitors like watchman will use something other than a timestamp
to keep better track of what changes happen in between calls to query
the fsmonitor. The clockid in watchman is a string. Now that the index
is storing an opaque token for the last update the code needs to be
updated to pass that opaque token to a verion 2 of the fsmonitor hook.

Because there are repos that already have version 1 of the hook and we
want them to continue to work when git is updated, we need to handle
both version 1 and version 2 of the hook. In order to do that a
config value is being added core.fsmonitorHookVersion to force what
version of the hook should be used.  When this is not set it will default
to -1 and then the code will attempt to call version 2 of the hook first.
If that fails it will fallback to trying version 1.

Signed-off-by: Kevin Willford <Kevin.Willford@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-01-13 14:58:43 -08:00
Kevin Willford
56c6910028 fsmonitor: change last update timestamp on the index_state to opaque token
Some file system monitors might not use or take a timestamp for processing
and in the case of watchman could have race conditions with using a
timestamp. Watchman uses something called a clockid that is used for race
free queries to it. The clockid for watchman is simply a string.

Change the fsmonitor_last_update from being a uint64_t to a char pointer
so that any arbitrary data can be stored in it and passed back to the
fsmonitor.

Signed-off-by: Kevin Willford <Kevin.Willford@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-01-13 14:58:43 -08:00
Junio C Hamano
4d924528d8 Revert "Merge branch 'ra/rebase-i-more-options'"
This reverts commit 5d9324e0f4, reversing
changes made to c58ae96fc4.

The topic turns out to be too buggy for real use.

cf. <f2fe7437-8a48-3315-4d3f-8d51fe4bb8f1@gmail.com>
2020-01-12 13:25:18 -08:00
Junio C Hamano
1cf4836865 Merge branch 'js/mingw-loosen-overstrict-tree-entry-checks'
Further tweak to a "no backslash in indexed paths" for Windows port
we applied earlier.

* js/mingw-loosen-overstrict-tree-entry-checks:
  mingw: safeguard better against backslashes in file names
2020-01-10 14:45:27 -08:00
Johannes Schindelin via GitGitGadget
49e268e23e mingw: safeguard better against backslashes in file names
In 224c7d70fa (mingw: only test index entries for backslashes, not tree
entries, 2019-12-31), we relaxed the check for backslashes in tree
entries to check only index entries.

However, the code change was incorrect: it was added to
`add_index_entry_with_check()`, not to `add_index_entry()`, so under
certain circumstances it was possible to side-step the protection.

Besides, the description of that commit purported that all index entries
would be checked when in fact they were only checked when being added to
the index (there are code paths that do not do that, constructing
"transient" index entries).

In any case, it was pointed out in one insightful review at
https://github.com/git-for-windows/git/pull/2437#issuecomment-566771835
that it would be a much better idea to teach `verify_path()` to perform
the check for a backslash. This is safer, even if it comes with two
notable drawbacks:

- `verify_path()` cannot say _what_ is wrong with the path, therefore
  the user will no longer be told that there was a backslash in the
  path, only that the path was invalid.

- The `git apply` command also calls the `verify_path()` function, and
  might have been able to handle Windows-style paths (i.e. with
  backslashes instead of forward slashes). This will no longer be
  possible unless the user (temporarily) sets `core.protectNTFS=false`.

Note that `git add <windows-path>` will _still_ work because
`normalize_path_copy_len()` will convert the backslashes to forward
slashes before hitting the code path that creates an index entry.

The clear advantage is that `verify_path()`'s purpose is to check the
validity of the file name, therefore we naturally tap into all the code
paths that need safeguarding, also implicitly into future code paths.

The benefits of that approach outweigh the downsides, so let's move the
check from `add_index_entry_with_check()` to `verify_path()`.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-01-10 12:29:07 -08:00
Derrick Stolee
a1087c9367 graph: fix lack of color in horizontal lines
In some cases, horizontal lines in rendered graphs can lose their
coloring. This is due to a use of graph_line_addch() instead of
graph_line_write_column(). Using a ternary operator to pick the
character is nice for compact code, but we actually need a column to
provide the color.

Add a test to t4215-log-skewed-merges.sh to prevent regression.

Reported-by: Jeff King <peff@peff.net>
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-01-08 09:37:18 -08:00
Derrick Stolee
0d251c3291 graph: drop assert() for merge with two collapsing parents
When "git log --graph" shows a merge commit that has two collapsing
lines, like:

    | | | | *
    | |_|_|/|
    |/| | |/
    | | |/|
    | |/| |
    | * | |
    * | | |

we trigger an assert():

        graph.c:1228: graph_output_collapsing_line: Assertion
                      `graph->mapping[i - 3] == target' failed.

The assert was introduced by eaf158f8 ("graph API: Use horizontal
lines for more compact graphs", 2009-04-21), which is quite old.
This assert is trying to say that when we complete a horizontal
line with a single slash, it is because we have reached our target.

It is actually the _second_ collapsing line that hits this assert.
The reason we are in this code path is because we are collapsing
the first line, and in that case we are hitting our target now
that the horizontal line is complete. However, the second line
cannot be a horizontal line, so it will collapse without horizontal
lines. In this case, it is inappropriate to assert that we have
reached our target, as we need to continue for another column
before reaching the target. Dropping the assert is safe here.

The new behavior in 0f0f389f12 (graph: tidy up display of
left-skewed merges, 2019-10-15) caused the behavior change that
made this assertion failure possible. In addition to making the
assert possible, it also changed how multiple edges collapse.

In a larger example, the current code will output a collapse
as follows:

	| | | | | | *
	| |_|_|_|_|/|\
	|/| | | | |/ /
	| | | | |/| /
	| | | |/| |/
	| | |/| |/|
	| |/| |/| |
	| | |/| | |
	| | * | | |

However, the intended collapse should allow multiple horizontal lines
as follows:

	| | | | | | *
	| |_|_|_|_|/|\
	|/| | | | |/ /
	| | |_|_|/| /
	| |/| | | |/
	| | | |_|/|
	| | |/| | |
	| | * | | |

This behavior is not corrected by this change, but is noted for a later
update.

Helped-by: Jeff King <peff@peff.net>
Reported-by: Bradley Smith <brad@brad-smith.co.uk>
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-01-08 09:35:07 -08:00
Jeff King
4d8cab95cc transport: don't flush when disconnecting stateless-rpc helper
Since ba227857d2 (Reduce the number of connects when fetching,
2008-02-04), when we disconnect a git transport, we send a final flush
packet. This cleanly tells the other side that we're done, and avoids
the other side complaining "the remote end hung up unexpectedly" (though
we'd only see that for transports that pass along the server stderr,
like ssh or local-host).

But when we've initiated a v2 stateless-connect session over a transport
helper, there's no point in sending this flush packet. Each operation
we've performed is self-contained, and the other side is fine with us
hanging up between operations.

But much worse, by sending the flush packet we may cause the helper to
issue an entirely new request _just_ to send the flush packet. So we can
incur an extra network request just to say "by the way, we have nothing
more to send".

Let's drop this extra flush packet. As the test shows, this reduces the
number of POSTs required for a v2 ls-remote over http from 2 to 1.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-01-08 09:32:38 -08:00
Jeff King
e701bab3e9 restore: invalidate cache-tree when removing entries with --staged
When "git restore --staged <path>" removes a path that's in the index,
it marks the entry with CE_REMOVE, but we don't do anything to
invalidate the cache-tree. In the non-staged case, we end up in
checkout_worktree(), which calls remove_marked_cache_entries(). That
actually drops the entries from the index, as well as invalidating the
cache-tree and untracked-cache.

But with --staged, we never call checkout_worktree(), and the CE_REMOVE
entries remain. Interestingly, they are dropped when we write out the
index, but that means the resulting index is inconsistent: its
cache-tree will not match the actual entries, and running "git commit"
immediately after will create the wrong tree.

We can solve this by calling remove_marked_cache_entries() ourselves
before writing out the index. Note that we can't just hoist it out of
checkout_worktree(); that function needs to iterate over the CE_REMOVE
entries (to drop their matching worktree files) before removing them.

One curiosity about the test: without this patch, it actually triggers a
BUG() when running git-restore:

  BUG: cache-tree.c:810: new1 with flags 0x4420000 should not be in cache-tree

But in the original problem report, which used a similar recipe,
git-restore actually creates the bogus index (and the commit is created
with the wrong tree). I'm not sure why the test here behaves differently
than my out-of-suite reproduction, but what's here should catch either
symptom (and the fix corrects both cases).

Reported-by: Torsten Krah <krah.tm@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-01-08 09:03:36 -08:00
Alexandr Miloslavskiy
fa74180d08 checkout: don't revert file on ambiguous tracking branches
For easier understanding, here are the existing good scenarios:

  1) Have *no* file 'foo', *no* local branch 'foo' and a *single*
     remote branch 'foo'
  2) `git checkout foo` will create local branch foo, see [1]

  and

  1) Have *a* file 'foo', *no* local branch 'foo' and a *single*
     remote branch 'foo'
  2) `git checkout foo` will complain, see [3]

This patch prevents the following scenario:

  1) Have *a* file 'foo', *no* local branch 'foo' and *multiple*
     remote branches 'foo'
  2) `git checkout foo` will successfully... revert contents of
     file `foo`!

That is, adding another remote suddenly changes behavior significantly,
which is a surprise at best and could go unnoticed by user at worst.
Please see [3] which gives some real world complaints.

To my understanding, fix in [3] overlooked the case of multiple remotes,
and the whole behavior of falling back to reverting file was never
intended:

  [1] introduces the unexpected behavior. Before, there was fallback
  from not-a-ref to pathspec. This is reasonable fallback. After, there
  is another fallback from ambiguous-remote to pathspec. I understand
  that it was a copy&paste oversight.

  [2] noticed the unexpected behavior but chose to semi-document it
  instead of forbidding, because the goal of the patch series was
  focused on something else.

  [3] adds `die()` when there is ambiguity between branch and file. The
  case of multiple tracking branches is seemingly overlooked.

The new behavior: if there is no local branch and multiple remote
candidates, just die() and don't try reverting file whether it
exists (prevents surprise) or not (improves error message).

[1] Commit 70c9ac2f ("DWIM "git checkout frotz" to "git checkout -b frotz origin/frotz"" 2009-10-18)
    https://public-inbox.org/git/7vaazpxha4.fsf_-_@alter.siamese.dyndns.org/
[2] Commit ad8d5104 ("checkout: add advice for ambiguous "checkout <branch>"", 2018-06-05)
    https://public-inbox.org/git/20180502105452.17583-1-avarab@gmail.com/
[3] Commit be4908f1 ("checkout: disambiguate dwim tracking branches and local files", 2018-11-13)
    https://public-inbox.org/git/20181110120707.25846-1-pclouds@gmail.com/

Signed-off-by: Alexandr Miloslavskiy <alexandr.miloslavskiy@syntevo.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-01-07 13:15:38 -08:00
Denton Liu
5020f6806a t2018: improve style of if-statement
Convert `[]` to `test` and break if-then into separate lines, both of
which bring the style in line with Git's coding guidelines.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-01-07 12:23:32 -08:00
Denton Liu
7ffb54618b t2018: add space between function name and ()
Add a space between the function name and () which brings the style in
line with Git's coding guidelines.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-01-07 12:23:32 -08:00
Junio C Hamano
c20d4fd44a Merge branch 'ds/sparse-list-in-cone-mode'
"git sparse-checkout list" subcommand learned to give its output in
a more concise form when the "cone" mode is in effect.

* ds/sparse-list-in-cone-mode:
  sparse-checkout: document interactions with submodules
  sparse-checkout: list directories in cone mode
2020-01-06 14:17:51 -08:00
Junio C Hamano
a578ef9e63 Merge branch 'js/mingw-loosen-overstrict-tree-entry-checks'
An earlier update to Git for Windows declared that a tree object is
invalid if it has a path component with backslash in it, which was
overly strict, which has been corrected.  The only protection the
Windows users need is to prevent such path (or any path that their
filesystem cannot check out) from entering the index.

* js/mingw-loosen-overstrict-tree-entry-checks:
  mingw: only test index entries for backslashes, not tree entries
2020-01-06 14:17:50 -08:00
Johannes Schindelin
224c7d70fa mingw: only test index entries for backslashes, not tree entries
During a clone of a repository that contained a file with a backslash in
its name in the past, as of v2.24.1(2), Git for Windows prints errors
like this:

	error: filename in tree entry contains backslash: '\'

The idea is to prevent Git from even trying to write files with
backslashes in their file names: while these characters are valid in
file names on other platforms, on Windows it is interpreted as directory
separator (which would obviously lead to ambiguities, e.g. when there is
a file `a\b` and there is also a file `a/b`).

Arguably, this is the wrong layer for that error: As long as the user
never checks out the files whose names contain backslashes, there should
not be any problem in the first place.

So let's loosen the requirements: we now leave tree entries with
backslashes in their file names alone, but we do require any entries
that are added to the Git index to contain no backslashes on Windows.

Note: just as before, the check is guarded by `core.protectNTFS` (to
allow overriding the check by toggling that config setting), and it
is _only_ performed on Windows, as the backslash is not a directory
separator elsewhere, even when writing to NTFS-formatted volumes.

An alternative approach would be to try to prevent creating files with
backslashes in their file names. However, that comes with its own set of
problems. For example, `git config -f C:\ProgramData\Git\config ...` is
a very valid way to specify a custom config location, and we obviously
do _not_ want to prevent that. Therefore, the approach chosen in this
patch would appear to be better.

This addresses https://github.com/git-for-windows/git/issues/2435

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-01-02 12:56:08 -08:00
Junio C Hamano
a82027e9e6 Merge branch 'js/use-test-tool-on-path'
Test fix.

* js/use-test-tool-on-path:
  t3008: find test-tool through path lookup
2020-01-02 12:38:30 -08:00
Junio C Hamano
13432fc6dd Merge branch 'js/mingw-reserved-filenames'
Forbid pathnames that the platform's filesystem cannot represent on
MinGW.

* js/mingw-reserved-filenames:
  mingw: refuse paths containing reserved names
  mingw: short-circuit the conversion of `/dev/null` to UTF-16
2020-01-02 12:38:30 -08:00
Derrick Stolee
4fd683b6a3 sparse-checkout: document interactions with submodules
Using 'git submodule (init|deinit)' a user can select a subset of
submodules to populate. This behaves very similar to the sparse-checkout
feature, but those directories contain their own .git directory
including an object database and ref space. To have the sparse-checkout
file also determine if those files should exist would easily cause
problems. Therefore, keeping these features independent in this way
is the best way forward.

Also create a test that demonstrates this behavior to make sure
it doesn't change as the sparse-checkout feature evolves.

Reported-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-30 09:07:20 -08:00
Derrick Stolee
de11951b03 sparse-checkout: list directories in cone mode
When core.sparseCheckoutCone is enabled, the 'git sparse-checkout set'
command takes a list of directories as input, then creates an ordered
list of sparse-checkout patterns such that those directories are
recursively included and all sibling entries along the parent directories
are also included. Listing the patterns is less user-friendly than the
directories themselves.

In cone mode, and as long as the patterns match the expected cone-mode
pattern types, change the output of 'git sparse-checkout list' to only
show the directories that created the patterns.

With this change, the following piped commands would not change the
working directory:

	git sparse-checkout list | git sparse-checkout set --stdin

The only time this would not work is if core.sparseCheckoutCone is
true, but the sparse-checkout file contains patterns that do not
match the expected pattern types for cone mode.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-30 09:07:18 -08:00
Denton Liu
f1842ff531 t2018: remove trailing space from test description
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-27 14:40:43 -08:00
Johannes Sixt
20a67e8ce9 t3008: find test-tool through path lookup
Do not use $GIT_BUILD_DIR without quotes; it may contain spaces and be
split into fields. But it is not necessary to access test-tool with an
absolute path in the first place as it can be found via path lookup.
Remove the explicit path.

Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-27 14:15:01 -08:00
Junio C Hamano
d2189a721c Merge branch 'en/fill-directory-fixes'
Assorted fixes to the directory traversal API.

* en/fill-directory-fixes:
  dir.c: use st_add3() for allocation size
  dir: consolidate similar code in treat_directory()
  dir: synchronize treat_leading_path() and read_directory_recursive()
  dir: fix checks on common prefix directory
  dir: break part of read_directory_recursive() out for reuse
  dir: exit before wildcard fall-through if there is no wildcard
  dir: remove stray quote character in comment
  Revert "dir.c: make 'git-status --ignored' work within leading directories"
  t3011: demonstrate directory traversal failures
2019-12-25 11:22:02 -08:00
Junio C Hamano
8be0a428d6 Merge branch 'rs/test-cleanup'
Test cleanup.

* rs/test-cleanup:
  t6030: don't create unused file
  t5580: don't create unused file
  t3501: don't create unused file
  t7004: don't create unused file
  t4256: don't create unused file
2019-12-25 11:22:01 -08:00
Junio C Hamano
c0c6a74594 Merge branch 'rs/xdiff-ignore-ws-w-func-context'
Extend test coverage for a recent fix.

* rs/xdiff-ignore-ws-w-func-context:
  t4015: improve coverage of function context test
2019-12-25 11:22:01 -08:00
Junio C Hamano
45b96a6fa1 Merge branch 'js/add-p-in-c'
The effort to move "git-add--interactive" to C continues.

* js/add-p-in-c:
  built-in add -p: show helpful hint when nothing can be staged
  built-in add -p: only show the applicable parts of the help text
  built-in add -p: implement the 'q' ("quit") command
  built-in add -p: implement the '/' ("search regex") command
  built-in add -p: implement the 'g' ("goto") command
  built-in add -p: implement hunk editing
  strbuf: add a helper function to call the editor "on an strbuf"
  built-in add -p: coalesce hunks after splitting them
  built-in add -p: implement the hunk splitting feature
  built-in add -p: show different prompts for mode changes and deletions
  built-in app -p: allow selecting a mode change as a "hunk"
  built-in add -p: handle deleted empty files
  built-in add -p: support multi-file diffs
  built-in add -p: offer a helpful error message when hunk navigation failed
  built-in add -p: color the prompt and the help text
  built-in add -p: adjust hunk headers as needed
  built-in add -p: show colored hunks by default
  built-in add -i: wire up the new C code for the `patch` command
  built-in add -i: start implementing the `patch` functionality in C
2019-12-25 11:22:01 -08:00
Junio C Hamano
bd72a08d6c Merge branch 'ds/sparse-cone'
Management of sparsely checked-out working tree has gained a
dedicated "sparse-checkout" command.

* ds/sparse-cone: (21 commits)
  sparse-checkout: improve OS ls compatibility
  sparse-checkout: respect core.ignoreCase in cone mode
  sparse-checkout: check for dirty status
  sparse-checkout: update working directory in-process for 'init'
  sparse-checkout: cone mode should not interact with .gitignore
  sparse-checkout: write using lockfile
  sparse-checkout: use in-process update for disable subcommand
  sparse-checkout: update working directory in-process
  sparse-checkout: sanitize for nested folders
  unpack-trees: add progress to clear_ce_flags()
  unpack-trees: hash less in cone mode
  sparse-checkout: init and set in cone mode
  sparse-checkout: use hashmaps for cone patterns
  sparse-checkout: add 'cone' mode
  trace2: add region in clear_ce_flags
  sparse-checkout: create 'disable' subcommand
  sparse-checkout: add '--stdin' option to set subcommand
  sparse-checkout: 'set' subcommand
  clone: add --sparse mode
  sparse-checkout: create 'init' subcommand
  ...
2019-12-25 11:21:58 -08:00
Junio C Hamano
f3c520e17f Merge branch 'sg/name-rev-wo-recursion'
Redo "git name-rev" to avoid recursive calls.

* sg/name-rev-wo-recursion:
  name-rev: cleanup name_ref()
  name-rev: eliminate recursion in name_rev()
  name-rev: use 'name->tip_name' instead of 'tip_name'
  name-rev: drop name_rev()'s 'generation' and 'distance' parameters
  name-rev: restructure creating/updating 'struct rev_name' instances
  name-rev: restructure parsing commits and applying date cutoff
  name-rev: pull out deref handling from the recursion
  name-rev: extract creating/updating a 'struct name_rev' into a helper
  t6120: add a test to cover inner conditions in 'git name-rev's name_rev()
  name-rev: use sizeof(*ptr) instead of sizeof(type) in allocation
  name-rev: avoid unnecessary cast in name_ref()
  name-rev: use strbuf_strip_suffix() in get_rev_name()
  t6120-describe: modernize the 'check_describe' helper
  t6120-describe: correct test repo history graph in comment
2019-12-25 11:21:58 -08:00
Junio C Hamano
6514ad40a1 Merge branch 'ra/t5150-depends-on-perl'
Some Porcelain commands are written in Perl, and tests on them are
expected not to work when the platform lacks a working perl.

* ra/t5150-depends-on-perl:
  t5150: skip request-pull test if Perl is disabled
2019-12-25 11:21:58 -08:00
Junio C Hamano
17066bea38 Merge branch 'dl/format-patch-notes-config-fixup'
"git format-patch" can take a set of configured format.notes values
to specify which notes refs to use in the log message part of the
output.  The behaviour of this was not consistent with multiple
--notes command line options, which has been corrected.

* dl/format-patch-notes-config-fixup:
  notes.h: fix typos in comment
  notes: break set_display_notes() into smaller functions
  config/format.txt: clarify behavior of multiple format.notes
  format-patch: move git_config() before repo_init_revisions()
  format-patch: use --notes behavior for format.notes
  notes: extract logic into set_display_notes()
  notes: create init_display_notes() helper
  notes: rename to load_display_notes()
2019-12-25 11:21:58 -08:00
Junio C Hamano
135365dd99 Merge branch 'am/pathspec-f-f-checkout'
A few more commands learned the "--pathspec-from-file" command line
option.

* am/pathspec-f-f-checkout:
  checkout, restore: support the --pathspec-from-file option
  doc: restore: synchronize <pathspec> description
  doc: checkout: synchronize <pathspec> description
  doc: checkout: fix broken text reference
  doc: checkout: remove duplicate synopsis
  add: support the --pathspec-from-file option
  cmd_add: prepare for next patch
2019-12-25 11:21:57 -08:00
Junio C Hamano
ff0cb70d45 Merge branch 'am/pathspec-from-file'
An earlier series to teach "--pathspec-from-file" to "git commit"
forgot to make the option incompatible with "--all", which has been
corrected.

* am/pathspec-from-file:
  commit: forbid --pathspec-from-file --all
2019-12-25 11:21:57 -08:00
Johannes Schindelin
4dc42c6c18 mingw: refuse paths containing reserved names
There are a couple of reserved names that cannot be file names on
Windows, such as `AUX`, `NUL`, etc. For an almost complete list, see
https://docs.microsoft.com/en-us/windows/win32/fileio/naming-a-file

If one would try to create a directory named `NUL`, it would actually
"succeed", i.e. the call would return success, but nothing would be
created.

Worse, even adding a file extension to the reserved name does not make
it a valid file name. To understand the rationale behind that behavior,
see https://devblogs.microsoft.com/oldnewthing/20031022-00/?p=42073

Let's just disallow them all.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-21 16:09:07 -08:00
Ed Maste
761e3d26bb sparse-checkout: improve OS ls compatibility
On FreeBSD, when executed by root ls enables the '-A' option:

  -A  Include directory entries whose names begin with a dot (`.')
      except for . and ...  Automatically set for the super-user unless
      -I is specified.

As a result the .git directory appeared in the output when run as root.
Simulate no-dotfile ls behaviour using a shell glob.

Helped-by: Eric Wong <e@80x24.org>
Helped-by: Junio C Hamano <gitster@pobox.com>
Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Ed Maste <emaste@FreeBSD.org>
Acked-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-20 12:47:08 -08:00
Denton Liu
b441717256 t1507: inline full_name()
Before, we were running `test_must_fail full_name`. However,
`test_must_fail` should only be used on git commands. Inline full_name()
so that we can use test_must_fail on the git command directly.

When full_name() was introduced in 28fb84382b (Introduce
<branch>@{upstream} notation, 2009-09-10), the `git -C` option wasn't
available yet (since it was introduced in 44e1e4d67d (git: run in a
directory given with -C option, 2013-09-09)). As a result, the helper
function removed the need to manually cd each time. However, since
`git -C` is available now, we can just use that instead and inline
full_name().

An alternate approach was taken where we taught full_name() to accept an
optional `!` arg to trigger test_must_fail behavior. However, this added
more unnecessary complexity than inlining so we inline instead.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-20 11:30:45 -08:00
Denton Liu
9291e6329e t1507: run commands within test_expect_success
The expected test style is to have all commands tested within a
test_expect_success block. Move the generation of the 'expect' text into
their corresponding blocks. While we're at it, insert a second
`commit=$(git rev-parse HEAD)` into the next test case so that it's
clear where $commit is coming from.

The biggest advantage of doing this is that we now check the return code
of `git rev-parse HEAD` so we can catch it in case it fails.

This patch is best viewed with `--color-moved --ignore-all-space`.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-20 11:30:45 -08:00
Denton Liu
5236fce6b4 t1507: stop losing return codes of git commands
The return code of git commands are lost when a command is in a
non-assignment command substitution in favour of the surrounding
command's. Rewrite instances of this so that git commands run
on their own.

In commit_subject(), use a `tformat` instead of `format` since,
previously, we were testing the output of a command substitution which
didn't care if there was a trailing newline since it was automatically
stripped. Since we use test_cmp() now, the trailing newline matters so
use `tformat` to always output it.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-20 11:30:45 -08:00
Denton Liu
10812c2337 t1501: remove use of test_might_fail cp
The test_must_fail() family of functions (including test_might_fail())
should only be used on git commands. Replace test_might_fail() with
a compound command wrapping the old cp invocation that always returns 0.

The `test_might_fail cp` line was introduced in 466e8d5d66 (t1501: fix
test with split index, 2015-03-24). It is necessary because there might
exist some index files in `repo.git/sharedindex.*` and, if they exist,
we want to copy them over. However, if they don't exist, we don't want
to error out because we expect that possibility. As a result, we want to
keep the "might fail" semantics so we always return 0, even if the
underlying cp errors out.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-20 11:30:45 -08:00
Denton Liu
62d58cda69 t1409: use test_path_is_missing()
The test_must_fail() function should only be used for git commands since
we should assume that external commands work sanely. Replace
`test_must_fail test -f` with `test_path_is_missing` since we expect
these paths to not exist.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-20 11:30:45 -08:00
Denton Liu
b87b02cfe6 t1409: let sed open its own input file
In one case, we were using a redirection operator to feed input into
sed. However, since sed is capable of opening its own input file, make
sed do that instead of redirecting input into it.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-20 11:30:45 -08:00
Denton Liu
9b92070e52 t1307: reorder nongit test_must_fail
In the future, we plan on only allowing `test_must_fail` to work on a
restricted subset of commands, including `git`. Reorder the commands so
that `nongit` comes before `test_must_fail`. This way, `test_must_fail`
operates on a git command.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-20 11:30:44 -08:00
Denton Liu
3595d10c26 t1306: convert test_might_fail rm to rm -f
The test_must_fail() family of functions (including test_might_fail())
should only be used on git commands. Replace `test_might_fail rm` with
`rm -f` so that we don't use `test_might_fail` on a non-git command.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-20 11:30:44 -08:00
Denton Liu
f511bc02ed t0020: use ! check_packed_refs_marked
The test_must_fail function should only be used for git commands since
we should assume that external commands work sanely. Since
check_packed_refs_marked() just wraps a grep invocation, replace
`test_must_fail check_packed_refs_marked` with
`! check_packed_refs_marked`.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-20 11:30:44 -08:00