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e54343a4
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2019-06-29T09:17:32
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fileops: rename to "futils.h" to match function signatures
Our file utils functions all have a "futils" prefix, e.g.
`git_futils_touch`. One would thus naturally guess that their
definitions and implementation would live in files "futils.h" and
"futils.c", respectively, but in fact they live in "fileops.h".
Rename the files to match expectations.
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6f6340af
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2019-07-18T11:57:55
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ignore: fix determining whether a shorter pattern negates another
When computing whether we need to store a negative pattern, we iterate
through all previously known patterns and check whether the negative
pattern undoes any of the previous ones. In doing so we call `wildmatch`
and check it's return for any negative error values. If there was a
negative return, we will abort and bubble up that error to the caller.
In fact, this check for negative values stems from the time where we
still used `fnmatch` instead of `wildmatch`. For `fnmatch`, negative
values indicate a "real" error, while for `wildmatch` a negative value
may be returned if the matching was prematurely aborted. A premature
abort may for example also happen if the pattern matches a prefix of the
haystack if the pattern is shorter. Returning an error in that case is
the wrong thing to do.
Fix the code to compare for equality with `WM_MATCH`, only. Negative
values returned by `wildmatch` are perfectly fine and thus should be
ignored. Add a test that verifies we do not see the error.
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05f9986a
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2019-06-14T08:06:05
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attr_file: convert to use `wildmatch`
Upstream git has converted to use `wildmatch` instead of
`fnmatch`. Convert our gitattributes logic to use `wildmatch` as
the last user of `fnmatch`. Please, don't expect I know what I'm
doing here: the fnmatch parser is one of the most fun things to
play around with as it has a sh*tload of weird cases. In all
honesty, I'm simply relying on our tests that are by now rather
comprehensive in that area.
The conversion actually fixes compatibility with how git.git
parser "**" patterns when the given path does not contain any
directory separators. Previously, a pattern "**.foo" erroneously
wouldn't match a file "x.foo", while git.git would match.
Remove the new-unused LEADINGDIR/NOLEADINGDIR flags for
`git_attr_fnmatch`.
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b3b6a39d
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2019-06-07T11:12:54
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attr_file: account for escaped escapes when searching trailing space
When determining the trailing space length, we need to honor
whether spaces are escaped or not. Currently, we do not check
whether the escape itself is escaped, though, which might
generate an off-by-one in that case as we will simply treat the
space as escaped.
Fix this by checking whether the backslashes preceding the space
are themselves escaped.
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10ac298c
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2019-06-07T11:12:42
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attr_file: fix unescaping of escapes required for fnmatch
When parsing attribute patterns, we will eventually unescape the
parsed pattern. This is required because we require custom
escapes for whitespace characters, as normally they are used to
terminate the current pattern. Thing is, we don't only unescape
those whitespace characters, but in fact all escaped sequences.
So for example if the pattern was "\*", we unescape that to "*".
As this is directly passed to fnmatch(3) later, fnmatch would
treat it as a simple glob matching all files where it should
instead only match a file with name "*".
Fix the issue by unescaping spaces, only. Add a bunch of tests to
exercise escape parsing.
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01dda5ff
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2019-06-07T08:29:32
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tests: unify ignore tests into their own dir
We had several occasions where tests for the gitignore had been
added to status::ignore instead of the easier-to-handle
attr::ignore test suite. This most likely resulted from the fact
that the attr::ignore test suite is not easy to discover inside
of the attr folder. Furthermore, ignore being part of the
attributes code is an implementation detail, only, and thus
shouldn't be stressed as much.
Improve this by moving both attr::ignore and status::ignore tests
into a new ignore test suite.
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