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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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a08bd547
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2020-04-05T16:24:26
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fetchhead: use GIT_ASSERT
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93a9044f
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2020-01-31T08:49:34
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fetchhead: strip credentials from remote URL
If fetching from an anonymous remote via its URL, then the URL gets
written into the FETCH_HEAD reference. This is mainly done to give
valuable context to some commands, like for example git-merge(1), which
will put the URL into the generated MERGE_MSG. As a result, what gets
written into FETCH_HEAD may become public in some cases. This is
especially important considering that URLs may contain credentials, e.g.
when cloning 'https://foo:bar@example.com/repo' we persist the complete
URL into FETCH_HEAD and put it without any kind of sanitization into the
MERGE_MSG. This is obviously bad, as your login data has now just leaked
as soon as you do git-push(1).
When writing the URL into FETCH_HEAD, upstream git does strip
credentials first. Let's do the same by trying to parse the remote URL
as a "real" URL, removing any credentials and then re-formatting the
URL. In case this fails, e.g. when it's a file path or not a valid URL,
we just fall back to using the URL as-is without any sanitization. Add
tests to verify our behaviour.
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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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f673e232
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2018-12-27T13:47:34
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git_error: use new names in internal APIs and usage
Move to the `git_error` name in the internal API for error-related
functions.
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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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1b4fbf2e
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2017-11-19T09:47:07
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remote: append to FETCH_HEAD rather than overwrite for each refspec
We treat each refspec on its own, but the code currently overwrites the contents
of FETCH_HEAD so we end up with the entries for the last refspec we processed.
Instead, truncate it before performing the updates and append to it when
updating the references.
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0c7f49dd
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2017-06-30T13:39:01
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Make sure to always include "common.h" first
Next to including several files, our "common.h" header also declares
various macros which are then used throughout the project. As such, we
have to make sure to always include this file first in all
implementation files. Otherwise, we might encounter problems or even
silent behavioural differences due to macros or defines not being
defined as they should be. So in fact, our header and implementation
files should make sure to always include "common.h" first.
This commit does so by establishing a common include pattern. Header
files inside of "src" will now always include "common.h" as its first
other file, separated by a newline from all the other includes to make
it stand out as special. There are two cases for the implementation
files. If they do have a matching header file, they will always include
this one first, leading to "common.h" being transitively included as
first file. If they do not have a matching header file, they instead
include "common.h" as first file themselves.
This fixes the outlined problems and will become our standard practice
for header and source files inside of the "src/" from now on.
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84f56cb0
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2016-11-04T11:59:52
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repository: rename `path_repository` and `path_gitlink`
The `path_repository` variable is actually confusing to think
about, as it is not always clear what the repository actually is.
It may either be the path to the folder containing worktree and
.git directory, the path to .git itself, a worktree or something
entirely different. Actually, the intent of the variable is to
hold the path to the gitdir, which is either the .git directory
or the bare repository.
Rename the variable to `gitdir` to avoid confusion. While at it,
also rename `path_gitlink` to `gitlink` to improve consistency.
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909d5494
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2016-12-29T12:25:15
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giterr_set: consistent error messages
Error messages should be sentence fragments, and therefore:
1. Should not begin with a capital letter,
2. Should not conclude with punctuation, and
3. Should not end a sentence and begin a new one
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c77a55a9
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2016-11-14T10:05:31
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common: use PRIuZ for size_t in `giterr_set` calls
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bdc82e1c
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2014-04-24T14:08:29
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fetchhead: deal with quotes in branch names
The current FETCH_HEAD parsing code assumes that a quote must end the
branch name. Git however allows for quotes as part of a branch name,
which causes us to consider the FETCH_HEAD file as invalid.
Instead of searching for a single quote char, search for a quote char
followed by SP, which is not a valid part of a ref name.
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c7b3e1b3
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2013-12-06T15:42:20
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Some callback error check style cleanups
I find this easier to read...
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26c1cb91
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2013-12-09T09:44:03
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One more rename/cleanup for callback err functions
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dab89f9b
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2013-12-04T21:22:57
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Further EUSER and error propagation fixes
This continues auditing all the places where GIT_EUSER is being
returned and making sure to clear any existing error using the
new giterr_user_cancel helper. As a result, places that relied
on intercepting GIT_EUSER but having the old error preserved also
needed to be cleaned up to correctly stash and then retrieve the
actual error.
Additionally, as I encountered places where error codes were not
being propagated correctly, I tried to fix them up. A number of
those fixes are included in the this commit as well.
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25e0b157
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2013-12-06T15:07:57
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Remove converting user error to GIT_EUSER
This changes the behavior of callbacks so that the callback error
code is not converted into GIT_EUSER and instead we propagate the
return value through to the caller. Instead of using the
giterr_capture and giterr_restore functions, we now rely on all
functions to pass back the return value from a callback.
To avoid having a return value with no error message, the user
can call the public giterr_set_str or some such function to set
an error message. There is a new helper 'giterr_set_callback'
that functions can invoke after making a callback which ensures
that some error message was set in case the callback did not set
one.
In places where the sign of the callback return value is
meaningful (e.g. positive to skip, negative to abort), only the
negative values are returned back to the caller, obviously, since
the other values allow for continuing the loop.
The hardest parts of this were in the checkout code where positive
return values were overloaded as meaningful values for checkout.
I fixed this by adding an output parameter to many of the internal
checkout functions and removing the overload. This added some
code, but it is probably a better implementation.
There is some funkiness in the network code where user provided
callbacks could be returning a positive or a negative value and
we want to rely on that to cancel the loop. There are still a
couple places where an user error might get turned into GIT_EUSER
there, I think, though none exercised by the tests.
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6414fd33
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2013-11-11T06:47:15
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Merge pull request #1956 from libgit2/cmn/fetch-default-head
Remote revamp (director's cut)
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1d3a8aeb
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2013-11-04T18:28:57
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move mode_t to filebuf_open instead of _commit
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968c7d07
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2013-10-26T17:35:12
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remote: create FETCH_HEAD with a refspecless remote
When downloading the default branch due to lack of refspecs, we still
need to write out FETCH_HEAD with the tip we downloaded, unfortunately
with a format that doesn't match what we already have.
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d00d5464
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2013-03-01T15:37:33
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immutable references and a pluggable ref database
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359fc2d2
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2013-01-08T17:07:25
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update copyrights
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7382551f
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2012-12-22T16:29:59
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Fix -Wmaybe-uninitialized warning
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7fcec834
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2012-12-11T22:31:21
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fetchhead reading/iterating
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b0f6e45d
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2012-11-01T15:47:18
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create FETCH_HEAD specially instead of as a ref file
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