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3bc95cfe
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2017-06-07T14:42:12
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Merge pull request #4236 from pks-t/pks/index-v4-fixes
Fix path computations for compressed index entries
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6a13cf1e
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2017-06-07T13:56:22
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Merge pull request #4256 from libgit2/ethomson/unc_tests
(Temporarily) disable UNC tests
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f218508f
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2017-06-07T10:54:48
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ctest: temporarily disable UNC path tests
(Temporarily) disable UNC path tests to work around AppVeyor issues.
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40139fe6
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2017-06-07T07:38:06
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Merge pull request #4251 from Keruspe/master
Fix build with libressl
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f28744a5
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2017-06-05T10:11:20
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openssl_stream: fix building with libressl
OpenSSL v1.1 has introduced a new way of initializing the library
without having to call various functions of different subsystems. In
libgit2, we have been adapting to that change with 88520151f
(openssl_stream: use new initialization function on OpenSSL version
>=1.1, 2017-04-07), where we added an #ifdef depending on the OpenSSL
version. This change broke building with libressl, though, which has not
changed its API in the same way.
Fix the issue by expanding the #ifdef condition to use the old way of
initializing with libressl.
Signed-off-by: Marc-Antoine Perennou <Marc-Antoine@Perennou.com>
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82368b1b
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2017-05-12T10:04:42
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tests: index::version: add test to read index version v4
While we have a simple test to determine whether we can write an index
of version 4, we never verified that we are able to read this kind of
index (and in fact, we were not able to do so). Add a new repository
which has an index of version 4. This repository is then read from a new
test.
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fea0c81e
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2017-05-12T09:09:07
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tests: index::version: move up cleanup function
The init and cleanup functions for test suites are usually prepended to
our actual tests. The index::version test suite does not adhere to this
stile. Fix this.
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064a60e9
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2017-05-19T14:06:15
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index: verify we have enough space left when writing index entries
In our code writing index entries, we carry around a `disk_size`
representing how much memory we have in total and pass this value to
`git_encode_varint` to do bounds checks. This does not make much sense,
as at the time when passing on this variable it is already out of date.
Fix this by subtracting used memory from `disk_size` as we go along.
Furthermore, assert we've actually got enough space left to do the final
path memcpy.
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c71dff7e
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2017-05-19T13:49:34
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index: fix shared prefix computation when writing index entry
When using compressed index entries, each entry's path is preceded by a
varint encoding how long the shared prefix with the previous index entry
actually is. We currently encode a length of `(path_len - same_len)`,
which is doubly wrong. First, `path_len` is already set to `path_len -
same_len` previously. Second, we want to encode the shared prefix rather
than the un-shared suffix length.
Fix this by using `same_len` as the varint value instead.
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92d3ea4e
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2017-05-19T13:04:32
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tests: index::version: improve write test for index v4
The current write test does not trigger some edge-cases in the index
version 4 path compression code. Rewrite the test to start off the an
empty standard repository, creating index entries with interesting paths
itself. This allows for more fine-grained control over checked paths.
Furthermore, we now also verify that entry paths are actually
reconstructed correctly.
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83e0392c
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2017-05-19T13:39:05
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index: also sanity check entry size with compressed entries
We have a check in place whether the index has enough data left for the
required footer after reading an index entry, but this was only used for
uncompressed entries. Move the check down a bit so that it is executed
for both compressed and uncompressed index entries.
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350d2c47
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2017-05-19T14:22:35
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index: remove file-scope entry size macros
All index entry size computations are now performed in
`index_entry_size`. As such, we do not need the file-scope macros for
computing these sizes anymore. Remove them and move the `entry_size`
macro into the `index_entry_size` function.
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8fe33538
|
2017-05-19T12:45:48
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tests: index::version: verify we write compressed index entries
While we do have a test which checks whether a written index of version
4 has the correct version set, we do not check whether this actually
enables path compression for index entries. This commit adds a new test
by adding a number of index entries with equal path prefixes to the
index and subsequently flushing that to disk. With suffix compression
enabled by index version 4, only the last few bytes of these paths will
actually have to be written to the index, saving a lot of disk space.
For the test, differences are about an order of magnitude, allowing us
to easily verify without taking a deeper look at actual on-disk
contents.
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46b67034
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2017-05-19T13:59:53
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index: don't right-pad paths when writing compressed entries
Our code to write index entries to disk does not check whether the
entry that is to be written should use prefix compression for the path.
As such, we were overallocating memory and added bogus right-padding
into the resulting index entries. As there is no padding allowed in the
index version 4 format, this should actually result in an invalid index.
Fix this by re-using the newly extracted `index_entry_size` function.
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29f498e0
|
2017-05-19T13:38:34
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index: move index entry size computation into its own function
Create a new function `index_entry_size` which encapsulates the logic to
calculate how much space is needed for an index entry, whether it is
simple/extended or compressed/uncompressed. This can later be re-used by
our code writing index entries.
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8ceb890b
|
2017-05-19T12:35:21
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index: set last written index entry in foreach-entry-loop
The last written disk entry is currently being written inside of the
function `write_disk_entry`. Make behavior a bit more obviously by
instead setting it inside of `write_entries` while iterating all
entries.
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11d0be23
|
2017-05-12T10:01:43
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index: set last entry when reading compressed entries
To calculate the path of a compressed index entry, we need to know the
preceding entry's path. While we do actually set the first predecessor
correctly to "", we fail to update this while reading the entries.
Fix the issue by updating `last` inside of the loop. Previously, we've
been passing a double-pointer to `read_entry`, which it didn't update.
As it is more obvious to update the pointer inside the loop itself,
though, we can simply convert it to a normal pointer.
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febe8c14
|
2017-05-10T14:27:12
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index: fix confusion with shared prefix in compressed path names
The index version 4 introduced compressed path names for the entries.
From the git.git index-format documentation:
At the beginning of an entry, an integer N in the variable width
encoding [...] is stored, followed by a NUL-terminated string S.
Removing N bytes from the end of the path name for the previous
entry, and replacing it with the string S yields the path name for
this entry.
But instead of stripping N bytes from the previous path's string and
using the remaining prefix, we were instead simply concatenating the
previous path with the current entry path, which is obviously wrong.
Fix the issue by correctly copying the first N bytes of the previous
entry only and concatenating the result with our current entry's path.
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8a5e7aae
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2017-05-22T12:53:44
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varint: fix computation for remaining buffer space
When encoding varints to a buffer, we want to remain sure that the
required buffer space does not exceed what is actually available. Our
current check does not do the right thing, though, in that it does not
honor that our `pos` variable counts the position down instead of up. As
such, we will require too much memory for small varints and not enough
memory for big varints.
Fix the issue by correctly calculating the required size as
`(sizeof(varint) - pos)`. Add a test which failed before.
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dd0aa811
|
2017-06-04T22:46:07
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Merge branch 'pr/4228'
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f0848dd7
|
2017-06-04T22:44:30
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worktree: upgrade lock to an int
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82e929a8
|
2017-06-04T19:35:39
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Merge pull request #4239 from roblg/toplevel-dir-ignore-fix
Fix issue with directory glob ignore in subdirectories
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04de614b
|
2017-06-04T19:03:07
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Merge pull request #4243 from pks-t/pks/submodule-workdir
Submodule working directory
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a1023a43
|
2017-05-20T17:18:07
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Merge pull request #4179 from libgit2/ethomson/expand_tilde
Introduce home directory expansion function for config files, attribute files
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9b1260d3
|
2017-05-20T14:18:32
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Merge pull request #4097 from implausible/fix/auto-detect-proxy-callbacks
Fix proxy auto detect not utilizing callbacks
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e694e4e9
|
2017-05-20T14:17:36
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Merge pull request #4174 from libgit2/ethomson/set_head_to_tag
git_repository_set_head: use tag name in reflog
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119bdd86
|
2017-05-20T14:13:27
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Merge pull request #4231 from wabain/open-revrange
revparse: support open-ended ranges
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2696c5c3
|
2017-05-19T09:21:17
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|
repository: make check if repo is a worktree more strict
To determine if a repository is a worktree or not, we currently check
for the existence of a "gitdir" file inside of the repository's gitdir.
While this is sufficient for non-broken repositories, we have at least
one case of a subtly broken repository where there exists a gitdir file
inside of a gitmodule. This will cause us to misidentify the submodule
as a worktree.
While this is not really a fault of ours, we can do better here by
observing that a repository can only ever be a worktree iff its common
directory and dotgit directory are different. This allows us to make our
check whether a repo is a worktree or not more strict by doing a simple
string comparison of these two directories. This will also allow us to
do the right thing in the above case of a broken repository, as for
submodules these directories will be the same. At the same time, this
allows us to skip the `stat` check for the "gitdir" file for most
repositories.
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9f9fd05f
|
2017-05-19T08:59:46
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|
repository: factor out worktree check
The check whether a repository is a worktree or not is currently done
inside of `git_repository_open_ext`. As we want to extend this function
later on, pull it out into its own function `repo_is_worktree` to ease
working on it.
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32841973
|
2017-05-19T08:38:47
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repository: improve parameter names for `find_repo`
The out-parameters of `find_repo` containing found paths of a repository
are a tad confusing, as they are not as obvious as they could be. Rename
them like following to ease reading the code:
- `repo_path` -> `gitdir_path`
- `parent_path` -> `workdir_path`
- `link_path` -> `gitlink_path`
- `common_path` -> `commondir_path`
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57121a23
|
2017-05-19T08:34:32
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|
repository: clear out-parameter instead of freeing it
The `path` out-parameter of `find_repo` is being sanitized initially
such that we do not try to append to existing content. The sanitization
is done via `git_buf_free`, though, which forces us to needlessly
reallocate the buffer later in the function. Fix this by using
`git_buf_clear` instead.
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c3b8e8b3
|
2017-05-14T10:28:05
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|
Fix issue with directory glob ignore in subdirectories
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e526fbc7
|
2017-05-17T09:23:06
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tests: add test suite for opening submodules
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924f5d12
|
2017-05-16T18:02:13
|
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Merge pull request #4240 from pks-t/pks/fix-gcc-warnings
Fix GCC warnings
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98a5f081
|
2017-05-03T13:53:13
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tests: threads::basic: remove unused function `exit_abruptly`
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7d7f6d33
|
2017-05-03T13:52:55
|
|
tests: clone::local: compile UNC functions for Windows only
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8d93a11c
|
2017-05-03T12:38:55
|
|
odb: fix printf formatter for git_off_t
The fields `declared_size` and `received_bytes` of the `git_odb_stream`
are both of type `git_off_t` which is defined as a signed integer. When
passing these values to a printf-style string in
`git_odb_stream__invalid_length`, though, we format these as PRIuZ,
which is unsigned.
Fix the issue by using PRIdZ instead, silencing warnings on macOS.
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f0ca00e0
|
2017-05-03T12:25:48
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examples: network: refactor credentials callback
The credentials callback reads the username and password via scanf into
fixed-length arrays. While these are simply examples and as such not as
interesting, the unchecked return value of scanf causes GCC to emit
warnings. So while we're busy to shut up GCC, we also fix the possible
overflow of scanf by using getline instead.
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7776db51
|
2017-05-03T12:15:12
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|
odb: shut up gcc warnings regarding uninitilized variables
The `error` variable is used as a return value in the out-section of
both `odb_read_1` and `read_prefix_1`. While the value will actually
always be initialized inside of this section, GCC fails to realize this
due to interactions with the `found` variable: if `found` is set, the
error will always be initialized. If it is not, we return early without
reaching the out-statements.
Shut up the warnings by initializing the error variable, even though it
is unnecessary.
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87f5fbab
|
2017-05-11T21:22:20
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Merge pull request #4238 from libgit2/ethomson/vs_to_vsts
Update README: VS -> VSTS
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1e27b89f
|
2017-05-11T13:56:55
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|
Update README: VS -> VSTS
libgit2 is no longer used in Visual Studio Team Services, it's used in
Visual Studio Team Services.
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8b107dc5
|
2017-05-03T11:20:57
|
|
revparse: support open-ended ranges
Support '..' and '...' ranges where one side is not specified.
The unspecified side defaults to HEAD.
Closes #4223
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883eeb5f
|
2017-05-02T12:35:59
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|
worktree: switch over worktree pruning to an opts structure
The current signature of `git_worktree_prune` accepts a flags field to
alter its behavior. This is not as flexible as we'd like it to be when
we want to enable passing additional options in the future. As the
function has not been part of any release yet, we are still free to
alter its current signature. This commit does so by using our usual
pattern of an options structure, which is easily extendable without
breaking the API.
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8264a30f
|
2017-05-02T10:11:28
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|
worktree: support creating locked worktrees
When creating a new worktree, we do have a potential race with us
creating the worktree and another process trying to delete the same
worktree as it is being created. As such, the upstream git project has
introduced a flag `git worktree add --locked`, which will cause the
newly created worktree to be locked immediately after its creation. This
mitigates the race condition.
We want to be able to mirror the same behavior. As such, a new flag
`locked` is added to the options structure of `git_worktree_add` which
allows the user to enable this behavior.
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1b6ab16f
|
2017-05-04T10:20:33
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Merge pull request #4232 from pks-t/pks/schroot-test-fixes
tests: repo: fix repo discovery tests on overlayfs
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ffd264d9
|
2017-05-03T14:51:23
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|
tests: repo: fix repo discovery tests on overlayfs
Debian and Ubuntu often use schroot to build their DEB packages in a
controlled environment. Depending on how schroot is configured, our
tests regarding repository discovery break due to not being able to find
the repositories anymore. It turns out that these errors occur when the
schroot is configured to use an overlayfs on the directory structures.
The reason for this failure is that we usually refrain from discovering
repositories across devices. But unfortunately, overlayfs does not have
consistent device identifiers for all its files but will instead use the
device number of the filesystem the file stems from. So whenever we
cross boundaries between the upper and lower layer of the overlay, we
will fail to properly detect the repository and bail out.
This commit fixes the issue by enabling cross-device discovery in our
tests. While it would be preferable to have this turned off, it probably
won't do much harm anyway as we set up our tests in a temporary location
outside of the parent repository.
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7849e467
|
2017-05-02T16:03:41
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Merge pull request #4229 from pks-t/pks/ssh-memleaks
libssh2 shutdown
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2ce2a48f
|
2017-05-02T13:37:15
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|
transports: ssh: clean up after libssh2 on exit
After calling `libssh2_init`, we need to clean up after the library by
executing `libssh2_exit` as soon as we exit. Register a shutdown handler
to do so which simply calls `libssh2_exit`. This fixes several memory
leaks.
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8c027351
|
2017-05-02T13:35:09
|
|
transports: ssh: report failure initializing libssh2
We unconditionally return success when initializing libssh2, regardless
of whether `libgssh2_init` signals success or an error. Fix this by
checking its return code.
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a7aa73a5
|
2017-05-02T10:02:36
|
|
worktree: introduce git_worktree_add options
The `git_worktree_add` function currently accepts only a path and name
for the new work tree. As we may want to expand these parameters in
future versions without adding additional parameters to the function for
every option, this commit introduces our typical pattern of an options
struct. Right now, this structure is still empty, which will change with
the next commit.
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9cc0ba6b
|
2017-05-02T09:25:20
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Merge pull request #4226 from libgit2/ethomson/memleak
WIP: squash some memleaks
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1dc89aab
|
2017-05-01T21:34:21
|
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object validation: free some memleaks
|
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34c13106
|
2017-05-01T21:32:24
|
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signature: free dup'd buffers on parse error
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4dbcf0e6
|
2017-05-01T19:34:04
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|
remote: free the config snapshot
This reverts commit 5552237 and frees the snapshot properly.
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be343b88
|
2017-05-01T18:56:55
|
|
worktrees: cleanup some memory leaks
Be sure to clean up looked up references. Free buffers instead of
merely clearing them. Use `git__free` instead of `free`.
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13c1bf07
|
2017-05-01T16:17:48
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Merge pull request #4197 from pks-t/pks/verify-object-hashes
Verify object hashes
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d8702843
|
2017-05-01T16:11:56
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Merge pull request #4206 from libgit2/cmn/transport-get-proxy
transport: provide a getter for the proxy options
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5700ee9c
|
2017-05-01T16:10:50
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Merge pull request #4216 from pks-t/pks/debian-test-failures
Debian HTTPS feature test failure
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f86f35d6
|
2017-05-01T15:23:54
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Merge branch 'pr/4225'
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45071cec
|
2017-05-01T15:23:27
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git_remote_push: document that NULL refspecs allowed
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f9921ad7
|
2017-05-01T15:19:41
|
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Merge pull request #4224 from yuyichao/push-free-config
Do not free config when creating remote
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90cdf44f
|
2017-04-29T13:00:07
|
|
Allow NULL refspec in git_remote_push
Since this is allowed in `git_remote_upload`
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55522376
|
2017-04-29T12:28:35
|
|
Do not free config when creating remote
The regression was introduced in 22261344de18b3cc60ee6937468d66a6a6a28875
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e0973bc0
|
2017-04-28T14:05:15
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|
odb: verify hashes in read_prefix_1
While the function reading an object from the complete OID already
verifies OIDs, we do not yet do so for reading objects from a partial
OID. Do so when strict OID verification is enabled.
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14109620
|
2017-04-28T14:03:54
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odb: improve error handling in read_prefix_1
The read_prefix_1 function has several return statements springled
throughout the code. As we have to free memory upon getting an error,
the free code has to be repeated at every single retrun -- which it is
not, so we have a memory leak here.
Refactor the code to use the typical `goto out` pattern, which will free
data when an error has occurred. While we're at it, we can also improve
the error message thrown when multiple ambiguous prefixes are found. It
will now include the colliding prefixes.
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35079f50
|
2017-04-21T07:31:56
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odb: add option to turn off hash verification
Verifying hashsums of objects we are reading from the ODB may be costly
as we have to perform an additional hashsum calculation on the object.
Especially when reading large objects, the penalty can be as high as
35%, as can be seen when executing the equivalent of `git cat-file` with
and without verification enabled. To mitigate for this, we add a global
option for libgit2 which enables the developer to turn off the
verification, e.g. when he can be reasonably sure that the objects on
disk won't be corrupted.
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28a0741f
|
2017-04-10T09:30:08
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odb: verify object hashes
The upstream git.git project verifies objects when looking them up from
disk. This avoids scenarios where objects have somehow become corrupt on
disk, e.g. due to hardware failures or bit flips. While our mantra is
usually to follow upstream behavior, we do not do so in this case, as we
never check hashes of objects we have just read from disk.
To fix this, we create a new error class `GIT_EMISMATCH` which denotes
that we have looked up an object with a hashsum mismatch. `odb_read_1`
will then, after having read the object from its backend, hash the
object and compare the resulting hash to the expected hash. If hashes do
not match, it will return an error.
This obviously introduces another computation of checksums and could
potentially impact performance. Note though that we usually perform I/O
operations directly before doing this computation, and as such the
actual overhead should be drowned out by I/O. Running our test suite
seems to confirm this guess. On a Linux system with best-of-five
timings, we had 21.592s with the check enabled and 21.590s with the
ckeck disabled. Note though that our test suite mostly contains very
small blobs only. It is expected that repositories with bigger blobs may
notice an increased hit by this check.
In addition to a new test, we also had to change the
odb::backend::nonrefreshing test suite, which now triggers a hashsum
mismatch when looking up the commit "deadbeef...". This is expected, as
the fake backend allocated inside of the test will return an empty
object for the OID "deadbeef...", which will obviously not hash back to
"deadbeef..." again. We can simply adjust the hash to equal the hash of
the empty object here to fix this test.
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d59dabe5
|
2017-04-10T09:00:51
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tests: object: test looking up corrupted objects
We currently have no tests which check whether we fail reading corrupted
objects. Add one which modifies contents of an object stored on disk and
then tries to read the object.
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86c03552
|
2017-04-10T09:27:04
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|
tests: object: create sandbox
The object::lookup tests do use the "testrepo.git" repository in a
read-only way, so we do not set up the repository as a sandbox but
simply open it. But in a future commit, we will want to test looking up
objects which are corrupted in some way, which requires us to modify the
on-disk data. Doing this in a repository without creating the sandbox
will modify contents of our libgit2 repository, though.
Create the repository in a sandbox to avoid this.
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e29e8029
|
2017-04-10T10:31:22
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tests: odb: make hash of fake backend configurable
In the odb::backend::nonrefreshing test suite, we set up a fake backend
so that we are able to determine if backend functions are called
correctly. During the setup, we also parse an OID which is later on used
to read out the pseudo-object. While this procedure works right now, it
will create problems later when we implement hash verification for
looked up objects. The current OID ("deadbeef") will not match the hash
of contents we give back to the ODB layer and thus cannot be verified.
Make the hash configurable so that we can simply switch the returned for
single tests.
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7df580fa
|
2017-04-28T11:58:49
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|
Merge pull request #4191 from pks-t/pks/wt-ref-renames
Branch renames with worktrees
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6cf25a39
|
2017-04-26T09:09:53
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Merge pull request #4219 from pks-t/pks/socket-stream-addrinfo-loop
socket_stream: continue to next addrinfo on socket creation failure
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cecd41fb
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2017-04-26T09:08:51
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Merge pull request #4217 from pks-t/pks/readonly-cfg-backend
Honor read-only flag when writing to config backends
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954e06a8
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2017-04-26T12:09:57
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socket_stream: continue to next addrinfo on socket creation failure
When connecting to a remote via socket stream, we first use getaddrinfo
to obtain the possible connection methods followed by creating and
connecting the socket. But when creating the socket, we error out as
soon as we get an invalid socket instead of trying out other address
hints returned by addrinfo.
Fix this by continuing on invalid socket instead of returning an error.
This fixes connection establishment with musl libc.
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2a7086fa
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2017-04-25T13:23:04
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tests: config: verify functionality with read-only backends
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95f29fb3
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2017-04-25T12:40:13
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config: skip r/o backends when writing
Configuration backends have a readonly-flag which is currently used to
distinguish configuration snapshots. But somewhat unexpectedly, we do
not use the flag to prevent writing to a readonly backend but happily
proceed to do so.
This commit modifies logic to also honor the readonly flag for
configuration setters. We will now traverse through all backends and
pick the first one which is not marked as read-only whenever we want to
write new configuration.
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7f75eeaf
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2017-04-25T07:10:33
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Merge pull request #4215 from pks-t/pks/diff-stack-free
diff_parse: free object instead of its pointer
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64244131
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2017-04-25T12:59:48
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config_file: add missing include for `git_config_backend`
The config_file.h header provides some inline declarations accessing the
`git_config_backend`, but misses its declaration. Add the missing
include for "git2/sys/config.h" to add it.
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417319cc
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2017-04-25T10:14:37
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tests: core::features: only check for HTTPS if it is supported
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a4de1ae3
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2017-04-25T10:14:19
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cmake: define GIT_HTTPS when HTTPS is supported
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1cb30b1b
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2017-04-25T09:48:59
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diff_parse: free object instead of its pointer
In e7330016a (diff_parse: check return value of `git_diff_init_options`,
2017-03-20), we've introduced an error check whether we're able to
correctly initialize the diff options. This simple commit actually
introduced a segfault in that we now try to free the pointer to the
allocated diff in an error case, instead of the allocated diff itself.
This commit fixes the issue.
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0d2f6824
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2017-04-21T15:39:03
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Merge pull request #4210 from pks-t/pks/misc-fixes
Misc fixes
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13c275ab
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2017-04-21T07:49:08
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tests: threads::diff: fix warning for unused variable
The threads::diff test suite has a static variable `_retries`, which is
used on Windows platforms only. As it is unused on other systems, the
compiler throws a warning there. Fix the warning by wrapping the
declaration in an ifdef.
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f4d1592c
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2017-04-21T07:09:59
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global: fix typo in `git_libgit2_init` description
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8d89e409
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2017-04-17T17:19:03
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Merge pull request #4192 from libgit2/ethomson/win32_posix
Refactor some of the win32 POSIX emulation
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86536c7e
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2017-04-17T15:40:03
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win32: `remediation` not `cleanup`
The `remediation` function is run in the retry loop in order to attempt
to fix any problems that the prior run encountered. There is nothing
"cleaned up". Clarify the name.
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5c760960
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2017-04-17T13:03:03
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transport: provide a getter for the proxy options
As with the callbacks, third-party implementations of smart subtransports cannot
reach into the opaque struct and thus cannot know what options the user set.
Add a getter for these options to copy the proxy options into something external
implementors can use.
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f9d3b0d0
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2017-04-12T09:21:26
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Merge pull request #4201 from pks-t/pks/fileops-fd-leak
fileops: fix leaking fd in `mmap_ro_file`
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38b6e700
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2017-04-12T08:09:08
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fileops: fix leaking fd in `mmap_ro_file`
When the `git_futils_mmap_ro_file` function encounters an error after
the file has been opened, it will do a simple returns. Instead, we
should close the opened file descriptor to avoid a leak. This commit
fixes the issue.
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d476d024
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2017-04-11T19:18:05
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Merge pull request #4196 from pks-t/pks/filter-segfault
filter: only close filter if it's been initialized correctly
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a5781e2a
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2017-04-11T19:17:11
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Merge pull request #4195 from pks-t/pks/openssl-1.1
Fix building against OpenSSL v1.1
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1262963a
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2017-04-11T19:10:28
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Merge pull request #4198 from pks-t/pks/git-compat
README: document our relation to changes in upstream
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19a04f67
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2017-04-10T12:01:28
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README: document our relation to changes in upstream
libgit2 is a mere consumer of changes which are trickling down from the
upstream git.git project. This commit documents the ramifications caused
by this relation.
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88520151
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2017-04-07T13:02:50
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openssl_stream: use new initialization function on OpenSSL version >=1.1
Previous to OpenSSL version 1.1, the user had to initialize at least the error
strings as well as the SSL algorithms by himself. OpenSSL version 1.1 instead
provides a new function `OPENSSL_init_ssl`, which handles initialization of all
subsystems. As the new API call will by default load error strings and
initialize the SSL algorithms, we can safely replace these calls when compiling
against version 1.1 or later.
This fixes a compiler error when compiling against OpenSSL version 1.1 which has
been built without stubs for deprecated syntax.
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29081c2f
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2017-04-07T12:54:33
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openssl_stream: remove locking initialization on OpenSSL version >=1.1
Up to version 1.0, OpenSSL required us to provide a callback which implements
a locking mechanism. Due to problems in the API design though this mechanism was
inherently broken, especially regarding that the locking callback cannot report
errors in an obvious way. Due to this shortcoming, the locking initialization
has been completely removed in OpenSSL version 1.1. As the library has also been
refactored to not make any use of these callback functions, we can safely remove
all initialization of the locking subsystem if compiling against OpenSSL version
1.1 or higher.
This fixes a compilation error when compiling against OpenSSL version 1.1 which
has been built without stubs for deprecated syntax.
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cf07db2f
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2017-04-07T16:05:10
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filter: only close filter if it's been initialized correctly
In the function `git_filter_list_stream_data`, we initialize, write and
subesquently close the stream which should receive content processed by
the filter. While we skip writing to the stream if its initialization
failed, we still try to close it unconditionally -- even if the
initialization failed, where the stream might not be set at all, leading
us to segfault.
Semantics in this code is not really clear. The function handling the
same logic for files instead of data seems to do the right thing here in
only closing the stream when initialization succeeded. When stepping
back a bit, this is only reasonable: if a stream cannot be initialized,
the caller would not expect it to be closed again. So actually, both
callers of `stream_list_init` fail to do so. The data streaming function
will always close the stream and the file streaming function will not
close the stream if writing to it has failed.
The fix is thus two-fold:
- callers of `stream_list_init` now close the stream iff it has been
initialized
- `stream_list_init` now closes the lastly initialized stream if
the current stream in the chain failed to initialize
Add a test which segfaulted previous to these changes.
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e572b631
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2017-04-07T09:03:56
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Merge pull request #4183 from pks-t/pks/coverity
Coverity
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44998cdb
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2017-04-07T09:02:54
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Merge pull request #4193 from pks-t/pks/libdir
pkgconfig: fix handling of prefixes containing whitespaces
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22436f29
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2017-04-05T14:39:05
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pkgconfig: fix handling of prefixes containing whitespaces
Our libgit2.pc.in file is quoting the `libdir` variable in our declared
"Libs:" line. The intention is to handle whitespaces here, but pkgconfig
already does so by automatically escaping whitespace with backslashes.
The correct thing to do is to instead quote the prefix, as this is the
one which is being substituted by CMake upon installation. As both
libdir and includedir will be expanded to "${prefix}/lib" and
"${prefix}/include", respectively, pkgconfig will also correctly escape
whitespaces.
Note that this will actually break when a user manually wants to
override libdir and includedir with a path containing whitespace. But
actually, this cannot be helped, as always quoting these variables will
actuall break the common case of being prefixed with "${prefix}". So we
just bail out here and declare this as unsupported out of the box.
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2a485dab
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2017-04-04T18:55:57
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refs: update worktree HEADs when renaming branches
Whenever we rename a branch, we update the repository's symbolic HEAD
reference if it currently points to the branch that is to be renamed.
But with the introduction of worktrees, we also have to iterate over all
HEADs of linked worktrees to adjust them. Do so.
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