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Make reflog part of refdb
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The iconv init was accidentally clearing the default error state
during reference normalization. This resets so that normalization
errors will be detected correctly.
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Before these changes, looking up a reference would return the
same precomposed or decomposed form of the reference name that
was used to look it up, so on MacOS which ignores the difference
between the two, a single reference could be looked up either way
and git_reference_name would return the form of the name that was
used to look it up! This change makes lookup always return the
precomposed name if core.precomposeunicode is set regardless of
which version was used to look it up. The reference iterator was
already returning the precomposed form from earlier work.
This also updates the CMakeLists.txt rules for enabling iconv
usage because the clar tests for this code were actually not being
activated properly with the old version.
Finally, this moves git_repository_reset_filesystem from include/
git2/repository.h to include/git2/sys/repository.h since it is not
really a function that normal library users should have to think
about very often.
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References and their logs are logically coupled, let's make it so in
the code by moving the fs-based reflog implementation to live next to
the fs-based refs one.
As part of the change, make the function take names rather than
references, as only the names are relevant when looking up and
handling reflogs.
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Thread safety for the refdb_fs
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The refdb_fs implementation calls realloc directly on a reference
object when it wants to rename it. It is not a public object, so
this doesn't mess with the immutability of references, but it does
assume certain constraints on the reference representation. This
commit wraps that assumption in an isolated API to isolate it.
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This is a significant reorganization of the diff code to break it
into a set of more clearly distinct files and to document the new
organization. Hopefully this will make the diff code easier to
understand and to extend.
This adds a new `git_diff_driver` object that looks of diff driver
information from the attributes and the config so that things like
function content in diff headers can be provided. The full driver
spec is not implemented in the commit - this is focused on the
reorganization of the code and putting the driver hooks in place.
This also removes a few #includes from src/repository.h that were
overbroad, but as a result required extra #includes in a variety
of places since including src/repository.h no longer results in
pulling in the whole world.
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Breaking RefDB changes
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Introduce git_reference_shorthand
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Introduce a refs iterator
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If the backend doesn't provide support for it, the matching is done in
refdb on top of a normal iterator.
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Nobody should ever be using anything other than ALL at this level, so
remove the option altogether.
As part of this, git_reference_foreach_glob is now implemented in the
frontend using an iterator. Backends will later regain the ability of
doing the glob filtering in the backend.
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This allows us to get a list of reference names in a loop instead of callbacks.
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Generate a shorthand name out of the full refname.
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Extract this function out of the rev-parse code to be able to DWIM a
reference instead of its target.
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Remove most inlines from the public API
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Relax the ONELEVEL ref naming rules so the refspec parsing code can
ask for 'master' to be considered valid.
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Create a new include/git2/sys/refs.h and move the reference alloc
functions there. Also fix some documentation issues and some
minor code cleanups.
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This moves most of the refdb stuff over to the include/git2/sys
directory, with some minor shifts in function organization.
While I was making the necessary updates, I also removed the
trailing whitespace in a few files that I modified just because I
was there and it was bugging me.
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Implicit type conversion argument of function to size_t type
Suspicious sequence of types castings: size_t -> int -> size_t
Consider reviewing the expression of the 'A = B == C' kind. The expression is calculated as following: 'A = (B == C)'
Unsigned type is never < 0
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This fixes various build warnings on Mac and Windows (64-bit).
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It's somewhat common to try to write "/refs/tags/something". There is
no easy way to catch it during the main body of the function, as there
is no way to distinguish whether it's a leading slash or a double
slash somewhere in the middle.
Catch this at the beginning so we don't trigger the assert in
is_all_caps_and_underscore().
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The new tests were not taking core.filemode into account when
testing file modes after repo initialization. Fixed that and some
other Windows warnings that have crept in.
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The cppcheck static analyzer generates warnings for a bunch of
places in the libgit2 code base. All the ones fixed in this
commit are actually false positives, but I've reorganized the
code to hopefully make it easier for static analysis tools to
correctly understand the structure. I wouldn't do this if I
felt like it was making the code harder to read or worse for
humans, but in this case, these fixes don't seem too bad and will
hopefully make it easier for better analysis tools to get at any
real issues.
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Fix libgit2/libgit2sharp#318
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A leading slash confuses the name normalization code when the flags
include ALLOW_ONELEVEL. Catch this case in particular to avoid
triggering an assertion in the uppercase check which expects us not to
pass it an empty string.
The existing tests don't catch this as they simply use the NORMAL
flag.
This fixes #1300.
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Also ammends one of the tag tests to make sure it's working.
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This reverts commit 28b1cdf3a1bdcd37cf9d550c92b8c19b1782ea6b.
//cc #1262 #1267
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Fixes #1262
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I saw a repo in the wild today which had a master branch ref which was packed, but had no trailing newline. Git handled it fine, but libgit2 choked on it. Fix seems simple enough. If we don't see a newline, assume the end of the buffer is the end of the ref line.
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When normalizing a reference name, if there is an error because
the name is invalid, then the memory allocated for storing the
name could be leaked if the caller was not careful and assumed
that the error return code meant that no allocation had occurred.
This fixes that by explicitly deallocating the reference name
buffer if there is an error in normalizing the name.
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