|
f7c6795f
|
2019-06-07T10:20:35
|
|
path: only treat paths starting with '\' as absolute on Win32
Windows-based systems treat paths starting with '\' as absolute,
either referring to the current drive's root (e.g. "\foo" might
refer to "C:\foo") or to a network path (e.g. "\\host\foo"). On
the other hand, (most?) systems that are not based on Win32
accept backslashes as valid characters that may be part of the
filename, and thus we cannot treat them to identify absolute
paths.
Change the logic to only paths starting with '\' as absolute on
the Win32 platform. Add tests to avoid regressions and document
behaviour.
|
|
f673e232
|
2018-12-27T13:47:34
|
|
git_error: use new names in internal APIs and usage
Move to the `git_error` name in the internal API for error-related
functions.
|
|
be4717d2
|
2018-09-18T12:12:06
|
|
path: fix "comparison always true" warning
|
|
|
44291868
|
2018-09-12T10:53:03
|
|
path validation: `char` is not signed by default.
ARM treats its `char` type as `unsigned type` by default; as a result,
testing a `char` value as being `< 0` is always false. This is a
warning on ARM, which is promoted to an error given our use of
`-Werror`.
Per ISO 9899:199, section "6.2.5 Types":
> The three types char, signed char, and unsigned char are collectively
> called the character types. The implementation shall define char to
> have the same range, representation, and behavior as either signed
> char or unsigned char.
>
...
> Irrespective of the choice made, char is a separate type from the other
> two and is not compatible with either.
|
|
|
3be73011
|
2018-06-11T18:26:22
|
|
Merge pull request #4436 from pks-t/pks/packfile-stream-free
pack: rename `git_packfile_stream_free`
|
|
|
ecf4f33a
|
2018-02-08T11:14:48
|
|
Convert usage of `git_buf_free` to new `git_buf_dispose`
|
|
|
92159bd4
|
2018-05-30T12:18:04
|
|
path: unify `git_path_is_*` APIs
Right now, there's quite a lot of different function calls to determine
whether a path component matches a specific name after normalization
from the filesystem. We have a function for each of {gitattributes,
gitmodules, gitignore} multiplicated with {generic, NTFS, HFS} checks.
In the long time, this is unmaintainable in case there are e.g. new
filesystems with specific semantics, blowing up the number of functions
we need to implement.
Replace all functions with a simple `git_path_is_gitfile` function,
which accepts an enum pointing out the filename that is to be checked
against as well as the filesystem normalizations to check for. This
greatly simplifies implementation at the expense of the caller having to
invoke a somewhat longer function call.
|
|
1f570a29
|
2018-05-23T08:40:17
|
|
path: check for a symlinked .gitmodules in fs-agnostic code
We still compare case-insensitively to protect more thoroughly as we don't know
what specifics we'll see on the system and it's the behaviour from git.
|
|
|
a7168b47
|
2018-05-22T16:13:47
|
|
path: reject .gitmodules as a symlink
Any part of the library which asks the question can pass in the mode to have it
checked against `.gitmodules` being a symlink.
This is particularly relevant for adding entries to the index from the worktree
and for checking out files.
|
|
|
02c80ad7
|
2018-05-22T15:21:08
|
|
path: accept the name length as a parameter
We may take in names from the middle of a string so we want the caller to let us
know how long the path component is that we should be checking.
|
|
|
490cbaa9
|
2018-05-22T13:58:24
|
|
path: expose dotgit detection functions per filesystem
These will be used by the checkout code to detect them for the particular
filesystem they're on.
|
|
0aa65f8d
|
2018-05-16T15:56:04
|
|
path: add functions to detect .gitconfig and .gitattributes
|
|
|
9de97ae7
|
2018-05-16T15:42:08
|
|
path: add a function to detect an .gitmodules file
Given a path component it knows what to pass to the filesystem-specific
functions so we're protected even from trees which try to use the 8.3 naming
rules to get around us matching on the filename exactly.
The logic and test strings come from the equivalent git change.
|
|
|
22973e09
|
2018-05-16T14:47:04
|
|
path: provide a generic function for checking dogit files on NTFS
It checks against the 8.3 shortname variants, including the one which includes
the checksum as part of its name.
|
|
|
0283fc46
|
2018-05-16T11:56:04
|
|
path: provide a generic dogit checking function for HFS
This lets us check for other kinds of reserved files.
|
|
|
0c7f49dd
|
2017-06-30T13:39:01
|
|
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.
|
|
|
78a8f68f
|
2017-06-06T14:57:31
|
|
path: only set dotgit flags when configs were read
|
|
|
a76d7502
|
2017-03-28T09:12:34
|
|
path: short-circuit `git_path_apply_relative` on error
Short-circuit the call to `git_path_resolve_relative` in case
`git_buf_joinpath` returns an error. While this does not fix any
immediate errors, the resulting code is easier to read and handles
potential new error conditions raised by `git_buf_joinpath`.
|
|
|
cffd616a
|
2017-03-28T09:08:41
|
|
path: handle error returned by `git_buf_joinpath`
In the `_check_dir_contents` function, we first allocate memory for
joining the directory and subdirectory together and afterwards use
`git_buf_joinpath`. While this function in fact should not fail as
memory is already allocated, err on the safe side and check for returned
errors.
|
|
|
9e8d75c7
|
2017-02-08T11:41:10
|
|
path: ensure dirname on Win32 prefix always has a trailing '/'
When calling `git_path_dirname_r` on a Win32 prefix, e.g. a drive
or network share prefix, we always want to return the trailing
'/'. This does not work currently when passing in a path like
'C:', where the '/' would not be appended correctly.
Fix this by appending a '/' if we try to normalize a Win32 prefix
and there is no trailing '/'.
|
|
|
5d59520c
|
2017-02-07T20:30:11
|
|
path: get correct dirname for Windows root
Getting the dirname of a filesystem root should return the filesystem
root itself. E.g. the dirname of "/" is always "/". On Windows, we
emulate this behavior and as such, we should return e.g. "C:/" if
calling dirname on "C:/". But we currently fail to do so and instead
return ".", as we do not check if we actually have a Windows prefix
before stripping off the last directory component.
Fix this by calling out to `win32_prefix_length` immediately after
stripping trailing slashes, returning early if we have a prefix.
|
|
|
d8c06070
|
2017-02-07T20:21:38
|
|
path: extract `win32_path_prefix` function
Extract code which determines if a path is at a Windows system's root.
This incluses drive prefixes (e.g. "C:\") as well as network computer
names (e.g. "//computername/").
|
|
909d5494
|
2016-12-29T12:25:15
|
|
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
|
|
|
6cf575b1
|
2016-11-25T15:01:04
|
|
path: remove unused local variable
|
|
|
ce5553d4
|
2016-03-10T22:01:09
|
|
refdb: bubble up locked files on the read side
On Windows we can find locked files even when reading a reference or the
packed-refs file. Bubble up the error in this case as well to allow
callers on Windows to retry more intelligently.
|
|
|
b81fe7c9
|
2016-11-14T10:07:13
|
|
path: pass string instead of git_buf to giterr_set
|
|
d34f6826
|
2014-04-08T17:18:47
|
|
Patch parsing from patch files
|
|
|
ba6f86eb
|
2016-03-18T17:33:46
|
|
Introduce `git_path_common_dirlen`
|
|
|
42c05ed5
|
2016-02-23T10:02:44
|
|
path: use GITERR_CHECK_ALLOC_BUF to verify passed in buffer
|
|
|
318b825e
|
2016-02-16T17:11:46
|
|
index: allow read of index w/ illegal entries
Allow `git_index_read` to handle reading existing indexes with
illegal entries. Allow the low-level `git_index_add` to add
properly formed `git_index_entry`s even if they contain paths
that would be illegal for the current filesystem (eg, `AUX`).
Continue to disallow `git_index_add_bypath` from adding entries
that are illegal universally illegal (eg, `.git`, `foo/../bar`).
|
|
95746a57
|
2015-12-14T19:21:09
|
|
Fix a couple function signatures
|
|
|
0862ec2e
|
2015-09-17T09:58:38
|
|
core::mkdir tests: ensure we don't stomp symlinks in mkdir
In `mkdir` and `mkdir_r`, ensure that we don't try to remove symlinks
that are in our way.
|
|
|
9d905541
|
2015-09-13T14:18:08
|
|
diriter: don't double '/' on posix
The canonical directory path of the root directory of a volume on
POSIX already ends in a slash (eg, `/`). This is true only at the
root. Do not add a slash to paths in this case.
|
|
|
5a466bef
|
2015-09-13T13:59:41
|
|
diriter: don't double '/' on Windows
The canonical directory path of the root directory of a volume on
windows already ends in a slash (eg, `c:/`). This is true only
at the volume root. Do not add a slash to paths in this case.
|
|
eba784d2
|
2015-08-05T10:19:06
|
|
Fix duplicate basenames to support older VS
With Visual Studio versions 2008 and older they ignore the full path to files and only check
the basename of the file to find a collision. Additionally, having duplicate basenames can break
other build tools like GYP.
This fixes https://github.com/libgit2/libgit2/issues/3356
|
|
|
2dfd5eae
|
2015-07-24T15:05:16
|
|
Merge pull request #3307 from libgit2/cmn/submodule-backslash
Normalize submodule urls before looking at them
|
|
318bb763
|
2015-07-21T23:36:39
|
|
Make libgit2 work on Windows Vista again
(fixes issue #3316)
Signed-off-by: Sven Strickroth <email@cs-ware.de>
|
|
|
a58854a0
|
2015-07-13T17:11:19
|
|
submodule, path: extract slash conversion
Extract the backslash-to-slash conversion into a helper function.
|
|
|
caab22c0
|
2015-06-23T15:41:58
|
|
buffer: don't allow growing borrowed buffers
When we don't own a buffer (asize=0) we currently allow the usage of
grow to copy the memory into a buffer we do own. This muddles the
meaning of grow, and lets us be a bit cavalier with ownership semantics.
Don't allow this any more. Usage of grow should be restricted to buffers
which we know own their own memory. If unsure, we must not attempt to
modify it.
|
|
85a5e8eb
|
2015-06-17T09:00:23
|
|
Fixed Xcode 6.1 build warnings
|
|
|
0f4d9c03
|
2015-06-15T09:52:40
|
|
Fixed Xcode 6.1 build warnings
|
|
|
25bd0aaf
|
2015-06-15T13:28:08
|
|
path: remove unnecessary readdir_r usage
Arguably all uses of readdir_r are unnecessary, but in this case
especially so, as the directory handle only exists within this function,
so we don't race with anybody.
|
|
95639dbb
|
2015-06-12T08:50:48
|
|
Fix memory leak on windows in diriter.
|
|
|
82a7a24c
|
2015-06-08T15:22:01
|
|
Merge pull request #3165 from ethomson/downcase
Downcase
|
|
|
8da44047
|
2015-06-06T03:55:28
|
|
path: error out if the callback returns an error
When the callback returns an error, we should stop immediately. This
broke when trying to make sure we pass specific errors up the chain.
This broke cancelling out of the loose backend's foreach.
|
|
|
75a4636f
|
2015-05-29T16:56:38
|
|
git__tolower: a tolower() that isn't dumb
Some brain damaged tolower() implementations appear to want to
take the locale into account, and this may require taking some
insanely aggressive lock on the locale and slowing down what should
be the most trivial of trivial calls for people who just want to
downcase ASCII.
|
|
|
8a4d77f9
|
2015-05-15T12:15:45
|
|
path: don't let direach overwrite the callback's error message
This function deals with functions doing IO which means the amount of
errors that can happen is quit large. It does not help if it always
ovewrites the underlying error message with a less understandable
version of "something went wrong".
Instead, only use this generic message if there was no error set by the
callback.
|
|
|
be3f1049
|
2015-05-01T11:27:44
|
|
diriter: actually use iconv on mac
|
|
|
cd39e4e2
|
2015-04-29T18:12:51
|
|
git_buf_put_w: introduce utf16->utf8 conversion
|
|
|
f63a1b72
|
2015-04-29T17:23:02
|
|
git_path_diriter: use FindFirstFile in win32
Using FindFirstFile and FindNextFile in win32 allows us to
use the directory information that is returned, instead of
us having to get the file attributes all over again, which
is a distinct cost savings on win32.
|
|
|
5c387b6c
|
2015-04-29T14:31:59
|
|
git_path_diriter: next shouldn't take path ptr
The _next method shouldn't take a path pointer (and a path_len
pointer) as 100% of current users use the full path and ignore
the filename.
Plus let's add some docs and a unit test.
|
|
|
7ef005f1
|
2015-04-29T14:04:01
|
|
git_path_dirload_with_stat: moved to fs_iterator
|
|
|
ba8ef18a
|
2015-04-29T13:28:29
|
|
git_path_dirload_with_stat: use git_path_diriter
|
|
|
07bbc045
|
2015-04-29T11:58:10
|
|
git_path_dirload: use git_path_diriter
|
|
|
edbfc52c
|
2015-04-29T11:05:27
|
|
git_path: introduce 'git_path_diriter'
Introduce a new `git_path_diriter` that can iterate directories
efficiently for each platform.
|
|
2a069761
|
2015-04-08T16:30:44
|
|
ISO C90 forbids mixed declarations and code
GIT_UNUSED() macro generates code therefore it should be used after
variable declarations.
|
|
|
4196dd8e
|
2015-02-26T15:33:58
|
|
repository: Introduce "reserved names"
A repository can have multiple "reserved names" now, not just
a single "short name" for the repository folder itself. Refactor
to include a git_repository__reserved_names that returns all the
reserved names for a repository.
|
|
|
f1453c59
|
2015-02-12T12:19:37
|
|
Make our overflow check look more like gcc/clang's
Make our overflow checking look more like gcc and clang's, so that
we can substitute it out with the compiler instrinsics on platforms
that support it. This means dropping the ability to pass `NULL` as
an out parameter.
As a result, the macros also get updated to reflect this as well.
|
|
|
392702ee
|
2015-02-09T23:41:13
|
|
allocations: test for overflow of requested size
Introduce some helper macros to test integer overflow from arithmetic
and set error message appropriately.
|
|
|
1fbfcdfc
|
2015-01-12T15:48:53
|
|
git_path_join_unrooted: return base len
The documentation for `git_path_join_unrooted` states that the base
length will be returned, so that consumers like checkout know where
to start creating directories instead of always creating directories
at the directory root.
|
|
6fd00266
|
2014-12-19T23:54:01
|
|
COM0 is a valid path, although Windows Explorer does not allow to create this
|
|
|
ec74b40c
|
2014-12-16T18:53:55
|
|
Introduce core.protectHFS and core.protectNTFS
Validate HFS ignored char ".git" paths when `core.protectHFS` is
specified. Validate NTFS invalid ".git" paths when `core.protectNTFS`
is specified.
|
|
8e35527d
|
2014-12-16T13:03:02
|
|
path: Use UTF8 iteration for HFS chars
|
|
|
11d67b75
|
2014-12-10T19:12:16
|
|
checkout: disallow bad paths on HFS
HFS filesystems ignore some characters like U+200C. When these
characters are included in a path, they will be ignored for the
purposes of comparison with other paths. Thus, if you have a ".git"
folder, a folder of ".git<U+200C>" will also match. Protect our
".git" folder by ensuring that ".git<U+200C>" and friends do not match it.
|
|
|
a64119e3
|
2014-11-25T18:13:00
|
|
checkout: disallow bad paths on win32
Disallow:
1. paths with trailing dot
2. paths with trailing space
3. paths with trailing colon
4. paths that are 8.3 short names of .git folders ("GIT~1")
5. paths that are reserved path names (COM1, LPT1, etc).
6. paths with reserved DOS characters (colons, asterisks, etc)
These paths would (without \\?\ syntax) be elided to other paths - for
example, ".git." would be written as ".git". As a result, writing these
paths literally (using \\?\ syntax) makes them hard to operate with from
the shell, Windows Explorer or other tools. Disallow these.
|
|
|
5a7cd1bc
|
2014-10-25T19:53:53
|
|
iterator: free paths when skipping them
|
|
|
969b6a47
|
2014-10-11T11:23:34
|
|
is_empty_dir (wi32): cope with empty mount points
FindFirstFile will fail with INVALID_HANDLE_VALUE if there are no
children to the given path, which can happen if the given path is a
file (and obviously has no children) or if the given path is an empty
mount point. (Most directories have at least directory entries '.'
and '..', but ridiculously another volume mounted in another drive
letter's path space do not, and thus have nothing to enumerate.)
If FindFirstFile fails, check if this is a directory-like thing
(a mount point).
|
|
44802c55
|
2014-09-30T16:19:24
|
|
path: fix invalid access
|
|
276d9ea3
|
2014-09-17T15:39:57
|
|
Merge pull request #2571 from libgit2/vmg/walk-up-path
Fix `git_path_walk_up` to work with non-rooted paths
|
|
|
4592b62e
|
2014-09-17T15:26:48
|
|
Merge pull request #2572 from cirosantilli/factor-void
Replace void casts with GIT_UNUSED.
|
|
c5cf8cad
|
2014-09-17T15:19:08
|
|
Replace void casts with GIT_UNUSED.
|
|
|
bbb988a5
|
2014-09-17T14:52:31
|
|
path: Fix `git_path_walk_up` to work with non-rooted paths
|
|
|
25abbc27
|
2014-09-17T03:19:40
|
|
Clean up some leaks in the test suite
|
|
|
0ee9f31c
|
2014-08-20T10:23:39
|
|
Introduce git_path_make_relative
|
|
f18234fa
|
2014-08-08T13:17:50
|
|
Don't report status on named pipes
Git skips entries in directories that are not S_ISDIR, S_ISREG, or
S_ISLNK, so let's make libgit2 do the same thing.
|
|
7d0ab0fa
|
2014-07-22T15:08:24
|
|
Merge remote-tracking branch 'origin/master' into fix-git-status-list-new-unreadable-folder
|
|
|
529fd30d
|
2014-07-08T15:45:50
|
|
Handle local file:/// paths on Windows
Windows can't handle a path like `/c:/foo`; when turning file:///
URIs into local paths, we must strip the leading slash.
|
|
|
dc49e1b5
|
2014-06-04T15:36:28
|
|
Merge remote-tracking branch 'origin/development' into fix-git-status-list-new-unreadable-folder
Conflicts:
include/git2/diff.h
|
|
|
54c02d21
|
2014-06-04T15:27:00
|
|
Clear out the struct.
|
|
|
18d7896c
|
2014-06-03T21:47:53
|
|
clone: re-use the local transport's path resolution
Whe already worked out the kinks with the function used in the local
transport. Expose it and make use of it in the local clone method
instead of trying to work it out again.
|
|
|
86c9d3da
|
2014-05-21T22:54:34
|
|
Return GIT_FILEMODE_UNREADABLE for files that fail to stat.
|
|
|
90553479
|
2014-05-20T17:40:28
|
|
Rename GIT_ENOACCESS -> GIT_EUNREADABLE
|
|
|
dc4906f1
|
2014-05-15T17:40:28
|
|
Skip unreadable files for now.
|
|
|
158c8ba1
|
2014-05-15T16:54:46
|
|
Return a specific error for EACCES.
|
|
|
43a04135
|
2014-05-08T13:52:46
|
|
Pass unconverted data when iconv doesn't like it
When using Iconv to convert unicode data and iconv doesn't like
the source data (because it thinks that it's not actual UTF-8),
instead of stopping the operation, just use the unconverted data.
This will generally do the right thing on the filesystem, since
that is the source of the non-UTF-8 path data anyhow.
This adds some tests for creating and looking up branches with
messy Unicode names. Also, this takes the helper function that
was previously internal to `git_repository_init` and makes it
into `git_path_does_fs_decompose_unicode` which is a useful in
tests to understand what the expected results should be.
|
|
7110000d
|
2014-04-22T10:21:19
|
|
React to feedback for UTF-8 <-> WCHAR and reparse work
|
|
|
c2c81615
|
2014-04-19T18:05:31
|
|
Win32: UTF-8 <-> WCHAR conversion overhaul
|
|
|
6a0956e5
|
2014-04-18T10:32:35
|
|
Pop ignore only if whole relative path matches
When traversing the directory structure, the iterator pushes and
pops ignore files using a vector. Some directories don't have
ignore files, so it uses a path comparison to decide when it is
right to actually pop the last ignore file. This was only
comparing directory suffixes, though, so a subdirectory with the
same name as a parent could result in the parent's .gitignore
being popped off the list ignores too early. This changes the
logic to compare the entire relative path of the ignore file.
|
|
|
7167fd7e
|
2014-04-07T11:51:12
|
|
vmg is always right
|
|
|
c813b345
|
2014-04-07T11:45:32
|
|
Fix bug with multiple iconv conversions in one dir
The internal buffer in the `git_path_iconv_t` structure was not
being reset before the calls to `iconv` were made to convert data,
so if there were multiple decomposed Unicode paths in a single
directory, paths after the first one were being appended to the
first instead of treated as independent data.
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d3bc95fd
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2014-03-25T12:37:05
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Update behavior for untracked sub-repos
When a directory containing a .git directory (or even just a plain
gitlink) was found, libgit2 was going out of its way to treat it
specially. This seemed like it was necessary because the diff
code was not originally emulating Git's behavior for untracked
directories correctly (i.e. scanning for ignored vs untracked items
inside). Now that libgit2 diff mimics Git's untracked directory
behavior, the special handling for contained Git repos is actually
incorrect and this commit rips it out.
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a213a7bf
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2014-03-05T20:32:53
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refdb: catch a directory disappearing
If a directory disappears between the time we look up the entries of its
parent and the time when we go to look at it, we should ignore the error
and move forward.
This fixes #2046.
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4f46a98b
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2014-02-24T23:32:25
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Remove now-duplicated stdarg.h include
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7e3ed419
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2013-12-11T16:56:17
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Fix up some valgrind leaks and warnings
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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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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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96869a4e
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2013-12-03T16:45:39
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Improve GIT_EUSER handling
This adds giterr_user_cancel to return GIT_EUSER and clear any
error message that is sitting around. As a result of using that
in places, we need to be more thorough with capturing errors that
happen inside a callback when used internally. To help with that,
this also adds giterr_capture and giterr_restore so that when we
internally use a foreach-type function that clears errors and
converts them to GIT_EUSER, it is easier to restore not just the
return value, but the actual error message text.
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0bfa7323
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2013-11-01T17:07:44
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iconv: Do not fake an API when iconv is not available
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14997dc5
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2013-10-08T12:45:43
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More filemode cleanups for FAT on MacOS
This cleans up some additional issues. The main change is that
on a filesystem that doesn't support mode bits, libgit2 will now
create new blobs with GIT_FILEMODE_BLOB always instead of being
at the mercy to the filesystem driver to report executable or not.
This means that if "core.filemode" lies and claims that filemode
is not supported, then we will ignore the executable bit from the
filesystem. Previously we would have allowed it.
This adds an option to the new git_repository_reset_filesystem to
recurse through submodules if desired. There may be other types
of APIs that would like a "recurse submodules" option, but this
one is particularly useful.
This also has a number of cleanups, etc., for related things
including trying to give better error messages when problems come
up from the filesystem. For example, the FAT filesystem driver on
MacOS appears to return errno EINVAL if you attempt to write a
filename with invalid UTF-8 in it. We try to capture that with a
better error message now.
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