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f0e693b1
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2021-09-07T17:53:49
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str: introduce `git_str` for internal, `git_buf` is external
libgit2 has two distinct requirements that were previously solved by
`git_buf`. We require:
1. A general purpose string class that provides a number of utility APIs
for manipulating data (eg, concatenating, truncating, etc).
2. A structure that we can use to return strings to callers that they
can take ownership of.
By using a single class (`git_buf`) for both of these purposes, we have
confused the API to the point that refactorings are difficult and
reasoning about correctness is also difficult.
Move the utility class `git_buf` to be called `git_str`: this represents
its general purpose, as an internal string buffer class. The name also
is an homage to Junio Hamano ("gitstr").
The public API remains `git_buf`, and has a much smaller footprint. It
is generally only used as an "out" param with strict requirements that
follow the documentation. (Exceptions exist for some legacy APIs to
avoid breaking callers unnecessarily.)
Utility functions exist to convert a user-specified `git_buf` to a
`git_str` so that we can call internal functions, then converting it
back again.
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ecf4f33a
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2018-02-08T11:14:48
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Convert usage of `git_buf_free` to new `git_buf_dispose`
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08e1fd65
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2015-04-07T14:44:08
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describe: only abort without tags if fallback is not allowed.
When no reference names could be found we did error out when trying to describe
a commit. This is wrong, though, when the option to fall back to a commit's
object ID is set.
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25345c0c
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2014-09-30T09:18:22
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describe: rename git_describe_opts to git_describe_options
And implement the option init functions for this and the format options.
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5431c46a
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2014-09-30T09:04:04
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describe: use globs in the tests
This makes us be closer to git's tests, and lets us better describe what
we expect from the output.
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3b6534b8
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2014-09-30T07:19:14
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describe: split into gather and format steps
Instead of printing out to the buffer inside the information-gathering
phase, write the data to a intermediate result structure.
This allows us to split the options into gathering options and
formatting options, simplifying the gathering code.
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1f501a08
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2014-09-30T04:58:02
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describe: rename _object() to _commit()
We don't describe arbitrary object, so let's give it the name of the one
object type we accept.
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3a728fb5
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2012-11-13T16:35:24
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object: introduce git_describe_object()
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