|
2d85c7e8
|
2019-06-14T14:12:19
|
|
posix: remove `p_fallocate` abstraction
By now, we have repeatedly failed to provide a nice
cross-platform implementation of `p_fallocate`. Recent tries to
do that escalated quite fast to a set of different CMake checks,
implementations, fallbacks, etc., which started to look real
awkward to maintain. In fact, `p_fallocate` had only been
introduced in commit 4e3949b73 (tests: test that largefiles can
be read through the tree API, 2019-01-30) to support a test with
large files, but given the maintenance costs it just seems not to
be worht it.
As we have removed the sole user of `p_fallocate` in the previous
commit, let's drop it altogether.
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|
94fc83b6
|
2019-06-13T16:48:35
|
|
cmake: Modulize our TLS & hash detection
The interactions between `USE_HTTPS` and `SHA1_BACKEND` have been
streamlined. Previously we would have accepted not quite working
configurations (like, `-DUSE_HTTPS=OFF -DSHA1_BACKEND=OpenSSL`) and, as
the OpenSSL detection only ran with `USE_HTTPS`, the link would fail.
The detection was moved to a new `USE_SHA1`, modeled after `USE_HTTPS`,
which takes the values "CollisionDetection/Backend/Generic", to better
match how the "hashing backend" is selected, the default (ON) being
"CollisionDetection".
Note that, as `SHA1_BACKEND` is still used internally, you might need to
check what customization you're using it for.
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|
c0dd7122
|
2019-06-06T16:48:04
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|
apply: add an options struct initializer
|
|
|
0b5ba0d7
|
2019-06-06T16:36:23
|
|
Rename opt init functions to `options_init`
In libgit2 nomenclature, when we need to verb a direct object, we name
a function `git_directobject_verb`. Thus, if we need to init an options
structure named `git_foo_options`, then the name of the function that
does that should be `git_foo_options_init`.
The previous names of `git_foo_init_options` is close - it _sounds_ as
if it's initializing the options of a `foo`, but in fact
`git_foo_options` is its own noun that should be respected.
Deprecate the old names; they'll now call directly to the new ones.
|
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a5ddae68
|
2019-06-13T22:00:48
|
|
Merge pull request #5097 from pks-t/pks/ignore-escapes
gitignore with escapes
|
|
|
e277ff4d
|
2019-06-13T21:41:55
|
|
Merge pull request #5108 from libgit2/ethomson/urlparse_empty_port
Handle URLs with a colon after host but no port
|
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|
fb529a01
|
2019-06-11T22:03:29
|
|
http-parser: use our bundled http-parser by default
Our bundled http-parser includes bugfixes, therefore we should prefer
our http-parser until such time as we can identify that the system
http-parser has these bugfixes (using a version check).
Since these bugs are - at present - minor, retain the ability for users
to force that they want to use the system http-parser anyway. This does
change the cmake specification so that people _must_ opt-in to the new
behavior knowingly.
|
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|
0c1029be
|
2019-06-13T11:41:39
|
|
Merge pull request #5022 from rcoup/merge-analysis-bare-repo-5017
Merge analysis support for bare repos
|
|
|
3b517351
|
2019-06-07T10:13:34
|
|
attr_file: remove invalid TODO comment
In our attributes pattern parsing code, we have a comment that
states we might have to convert '\' characters to '/' to have
proper POSIX paths. But in fact, '\' characters are valid inside
the string and act as escape mechanism for various characters,
which is why we never want to convert those to POSIX directory
separators. Furthermore, gitignore patterns are specified to only
treat '/' as directory separators.
Remove the comment to avoid future confusion.
|
|
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b3b6a39d
|
2019-06-07T11:12:54
|
|
attr_file: account for escaped escapes when searching trailing space
When determining the trailing space length, we need to honor
whether spaces are escaped or not. Currently, we do not check
whether the escape itself is escaped, though, which might
generate an off-by-one in that case as we will simply treat the
space as escaped.
Fix this by checking whether the backslashes preceding the space
are themselves escaped.
|
|
|
10ac298c
|
2019-06-07T11:12:42
|
|
attr_file: fix unescaping of escapes required for fnmatch
When parsing attribute patterns, we will eventually unescape the
parsed pattern. This is required because we require custom
escapes for whitespace characters, as normally they are used to
terminate the current pattern. Thing is, we don't only unescape
those whitespace characters, but in fact all escaped sequences.
So for example if the pattern was "\*", we unescape that to "*".
As this is directly passed to fnmatch(3) later, fnmatch would
treat it as a simple glob matching all files where it should
instead only match a file with name "*".
Fix the issue by unescaping spaces, only. Add a bunch of tests to
exercise escape parsing.
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|
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eb146e58
|
2019-06-07T09:17:23
|
|
attr_file: properly handle escaped '\' when searching non-escaped spaces
When parsing attributes, we need to search for the first
unescaped whitespace character to determine where the pattern is
to be cut off. The scan fails to account for the case where the
escaping '\' character is itself escaped, though, and thus we
would not recognize the cut-off point in patterns like "\\ ".
Refactor the scanning loop to remember whether the last character
was an escape character. If it was and the next character is a
'\', too, then we will reset to non-escaped mode again. Thus, we
now handle escaped whitespaces as well as escaped wildcards
correctly.
|
|
|
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.
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|
|
fd734f7d
|
2019-06-11T12:45:27
|
|
Merge pull request #5107 from pks-t/pks/sha1dc-update
sha1dc: update to fix endianess issues on AIX/HP-UX
|
|
|
230a451e
|
2019-06-10T13:54:11
|
|
sha1dc: update to fix endianess issues on AIX/HP-UX
Update our copy of sha1dc to the upstream commit 855827c (Detect
endianess on HP-UX, 2019-05-09). Changes include fixes to endian
detection on AIX and HP-UX systems as well as a define that
allows us to force aligned access, which we're not using yet.
|
|
|
7ea8630e
|
2019-04-07T20:11:59
|
|
http: free auth context on failure
When we send HTTP credentials but the server rejects them, tear down the
authentication context so that we can start fresh. To maintain this
state, additionally move all of the authentication handling into
`on_auth_required`.
|
|
|
005b5bc2
|
2019-04-07T17:55:23
|
|
http: reconnect to proxy on connection close
When we're issuing a CONNECT to a proxy, we expect to keep-alive to the
proxy. However, during authentication negotiations, the proxy may close
the connection. Reconnect if the server closes the connection.
|
|
|
d171fbee
|
2019-04-07T17:40:23
|
|
http: allow server to drop a keepalive connection
When we have a keep-alive connection to the server, that server may
legally drop the connection for any reason once a successful request and
response has occurred. It's common for servers to drop the connection
after some amount of time or number of requests have occurred.
|
|
|
9af1de5b
|
2019-03-24T20:49:57
|
|
http: stop on server EOF
We stop the read loop when we have read all the data. We should also
consider the server's feelings.
If the server hangs up on us, we need to stop our read loop. Otherwise,
we'll try to read from the server - and fail - ad infinitum.
|
|
|
539e6293
|
2019-03-22T19:06:46
|
|
http: teach auth mechanisms about connection affinity
Instead of using `is_complete` to decide whether we have connection or
request affinity for authentication mechanisms, set a boolean on the
mechanism definition itself.
|
|
|
3e0b4b43
|
2019-03-22T18:52:03
|
|
http: maintain authentication across connections
For request-based authentication mechanisms (Basic, Digest) we should
keep the authentication context alive across socket connections, since
the authentication headers must be transmitted with every request.
However, we should continue to remove authentication contexts for
mechanisms with connection affinity (NTLM, Negotiate) since we need to
reauthenticate for every socket connection.
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|
|
ce72ae95
|
2019-03-22T10:53:30
|
|
http: simplify authentication mechanisms
Hold an individual authentication context instead of trying to maintain
all the contexts; we can select the preferred context during the initial
negotiation.
Subsequent authentication steps will re-use the chosen authentication
(until such time as it's rejected) instead of trying to manage multiple
contexts when all but one will never be used (since we can only
authenticate with a single mechanism at a time.)
Also, when we're given a 401 or 407 in the middle of challenge/response
handling, short-circuit immediately without incrementing the retry
count. The multi-step authentication is expected, and not a "retry" and
should not be penalized as such.
This means that we don't need to keep the contexts around and ensures
that we do not unnecessarily fail for too many retries when we have
challenge/response auth on a proxy and a server and potentially
redirects in play as well.
|
|
|
6d931ba7
|
2019-03-22T16:35:59
|
|
http: don't set the header in the auth token
|
|
|
10718526
|
2019-03-09T13:53:16
|
|
http: don't reset replay count after connection
A "connection" to a server is transient, and we may reconnect to a
server in the midst of authentication failures (if the remote indicates
that we should, via `Connection: close`) or in a redirect.
|
|
|
3192e3c9
|
2019-03-07T16:57:11
|
|
http: provide an NTLM authentication provider
|
|
|
a7f65f03
|
2019-03-21T15:42:57
|
|
ntlm: add ntlmclient as a dependency
Include https://github.com/ethomson/ntlmclient as a dependency.
|
|
|
79fc8281
|
2019-03-21T16:49:25
|
|
http: validate server's authentication types
Ensure that the server supports the particular credential type that
we're specifying. Previously we considered credential types as an
input to an auth mechanism - since the HTTP transport only supported
default credentials (via negotiate) and username/password credentials
(via basic), this worked. However, if we are to add another mechanism
that uses username/password credentials, we'll need to be careful to
identify the types that are accepted.
|
|
|
5ad99210
|
2019-03-07T16:43:45
|
|
http: consume body on proxy auth failure
We must always consume the full parser body if we're going to
keep-alive. So in the authentication failure case, continue advancing
the http message parser until it's complete, then we can retry the
connection.
Not doing so would mean that we have to tear the connection down and
start over. Advancing through fully (even though we don't use the data)
will ensure that we can retry a connection with keep-alive.
|
|
|
75b20458
|
2019-03-07T16:34:55
|
|
http: always consume body on auth failure
When we get an authentication failure, we must consume the entire body
of the response. If we only read half of the body (on the assumption
that we can ignore the rest) then we will never complete the parsing of
the message. This means that we will never set the complete flag, and
our replay must actually tear down the connection and try again.
This is particularly problematic for stateful authentication mechanisms
(SPNEGO, NTLM) that require that we keep the connection alive.
Note that the prior code is only a problem when the 401 that we are
parsing is too large to be read in a single chunked read from the http
parser.
But now we will continue to invoke the http parser until we've got a
complete message in the authentication failed scenario. Note that we
need not do anything with the message, so when we get an authentication
failed, we'll stop adding data to our buffer, we'll simply loop in the
parser and let it advance its internal state.
|
|
|
e87f912b
|
2019-03-21T15:29:52
|
|
http: don't realloc the request
|
|
|
10e8fe55
|
2019-03-21T13:55:54
|
|
transports: add an `is_complete` function for auth
Some authentication mechanisms (like HTTP Basic and Digest) have a
one-step mechanism to create credentials, but there are more complex
mechanisms like NTLM and Negotiate that require challenge/response after
negotiation, requiring several round-trips. Add an `is_complete`
function to know when they have round-tripped enough to be a single
authentication and should now either have succeeded or failed to
authenticate.
|
|
|
9050c69c
|
2019-03-09T17:24:16
|
|
http: examine keepalive status at message end
We cannot examine the keep-alive status of the http parser in
`http_connect`; it's too late and the critical information about whether
keep-alive is supported has been destroyed.
Per the documentation for `http_should_keep_alive`:
> If http_should_keep_alive() in the on_headers_complete or
> on_message_complete callback returns 0, then this should be
> the last message on the connection.
Query then and set the state.
|
|
|
956ba48b
|
2019-03-14T10:36:40
|
|
http: increase the replay count
Increase the permissible replay count; with multiple-step authentication
schemes (NTLM, Negotiate), proxy authentication and redirects, we need
to be mindful of the number of steps it takes to get connected.
7 seems high but can be exhausted quickly with just a single authentication
failure over a redirected multi-state authentication pipeline.
|
|
|
ee3d35cf
|
2019-04-07T19:15:21
|
|
http: support https for proxies
|
|
|
3d11b6c5
|
2019-03-11T20:36:09
|
|
winhttp: support default credentials for proxies
We did not properly support default credentials for proxies, only for
destination servers. Refactor the credential handling to support sending
either username/password _or_ default credentials to either the proxy or
the destination server.
This actually shares the authentication logic between proxy servers and
destination servers. Due to copy/pasta drift over time, they had
diverged. Now they share a common logic which is: first, use
credentials specified in the URL (if there were any), treating empty
username and password (ie, "http://:@foo.com/") as default credentials,
for compatibility with git. Next, call the credential callbacks.
Finally, fallback to WinHTTP compatibility layers using built-in
authentication like we always have.
Allowing default credentials for proxies requires moving the security
level downgrade into the credential setting routines themselves.
We will update our security level to "high" by default which means that
we will never send default credentials without prompting. (A lower
setting, like the WinHTTP default of "medium" would allow WinHTTP to
handle credentials for us, despite what a user may have requested with
their structures.) Now we start with "high" and downgrade to "low" only
after a user has explicitly requested default credentials.
|
|
|
c6ab183e
|
2019-03-11T11:43:08
|
|
net: rename gitno_connection_data to git_net_url
"Connection data" is an imprecise and largely incorrect name; these
structures are actually parsed URLs. Provide a parser that takes a URL
string and produces a URL structure (if it is valid).
Separate the HTTP redirect handling logic from URL parsing, keeping a
`gitno_connection_data_handle_redirect` whose only job is redirect
handling logic and does not parse URLs itself.
|
|
|
178df697
|
2019-06-08T17:16:19
|
|
trace: suffix the callbacks with `_cb`
The trace logging callbacks should match the other callback naming
conventions, using the `_cb` suffix instead of a `_callback` suffix.
|
|
|
810cefd9
|
2019-06-08T17:14:00
|
|
credentials: suffix the callbacks with `_cb`
The credential callbacks should match the other callback naming
conventions, using the `_cb` suffix instead of a `_callback` suffix.
|
|
6d2ab2cf
|
2019-03-19T23:43:10
|
|
merge: analysis support for bare repositories
|
|
|
e50d138e
|
2019-06-06T09:48:30
|
|
Merge pull request #5095 from pks-t/pks/ignore-escaped-trailing-space
ignore: handle escaped trailing whitespace
|
|
|
4de6eb5b
|
2019-06-06T09:47:43
|
|
Merge pull request #5074 from libgit2/ethomson/ignore_leading_slash
Ignore: only treat one leading slash as a root identifier
|
|
|
d81e7866
|
2019-06-06T14:11:44
|
|
ignore: handle escaped trailing whitespace
The gitignore's pattern format specifies that "Trailing spaces
are ignored unless they are quoted with backslash ("\")". We do
not honor this currently and will treat a pattern "foo\ " as if
it was "foo\" only and a pattern "foo\ \ " as "foo\ \".
Fix our code to handle those special cases and add tests to avoid
regressions.
|
|
|
b6967c39
|
2019-06-06T14:02:17
|
|
attr_file: refactor stripping of trailing spaces
The stripping of trailing spaces currently happens as part of
`git_attr_fnmatch__parse`. As we aren't currently parsing
trailing whitespaces correct in case they're escaped, we'll have
to change that code, though. To make actual behavioural change
easier to review, refactor the code up-front by pulling it out
into its own function that is expected to retain the exact same
functionality as before. Like this, the fix will be trivial to
apply.
|
|
|
63adcc4e
|
2019-05-19T16:27:59
|
|
attr: optionally treat leading whitespace as significant
When `allow_space` is unset, ensure that leading whitespace is not
skipped.
|
|
|
add17435
|
2019-05-24T15:24:26
|
|
cache: fix cache eviction using deallocated key
When evicting cache entries, we first retrieve the object that is
to be evicted, delete the object and then finally delete the key
from the cache. In case where the cache eviction caused us to
free the cached object, though, its key will point to invalid
memory now when trying to remove it from the cache map. On my
system, this causes us to not properly remove the key from the
map, as its memory has been overwritten already and thus the key
lookup it will fail and we cannot delete it.
Fix this by only decrementing the refcount of the evictee after
we have removed it from our cache map. Add a test that caused a
segfault previous to that change.
|
|
d668820d
|
2019-05-24T10:48:47
|
|
NetBSD < 7 doesn't have posix_fallocate
See: https://www.netbsd.org/changes/changes-7.0.html
|
|
9cc904da
|
2019-05-23T10:49:44
|
|
repository: fix garbage return value
error was never initialized and a garbage value returned on success.
|
|
|
355b02a1
|
2019-05-22T11:48:28
|
|
config: rename subsection header parser func
The `parse_section_header_ext` name suggests that it as an extended
function for parsing the section header. It is not. Rename it to
`parse_subsection_header` to better reflect its true mission.
|
|
|
23c5699e
|
2019-05-16T09:37:25
|
|
config: validate quoted section value
When we reach a whitespace after a section name, we assume that what
will follow will be a quoted subsection name. Pass the current position
of the line being parsed to the subsection parser, so that it can
validate that subsequent characters are additional whitespace or a
single quote.
Previously we would begin parsing after the section name, looking for
the first quotation mark. This allows invalid characters to embed
themselves between the end of the section name and the first quotation
mark, eg `[section foo "subsection"]`, which is illegal.
|
|
|
b83bd037
|
2019-05-16T08:57:10
|
|
config: don't write invalid column
When we don't specify a particular column, don't write it in the error
message. (column "0" is unhelpful.)
|
|
|
42dd38dd
|
2019-05-16T08:55:40
|
|
config: lowercase error messages
Update the configuration parsing error messages to be lower-cased for
consistency with the rest of the library.
|
|
|
d97afb93
|
2019-05-22T11:45:45
|
|
Merge pull request #5060 from pks-t/pks/refspec-nested-globs
Loosen restriction on wildcard "*" refspecs
|
|
|
3d9e82fd
|
2019-05-21T14:59:55
|
|
Merge pull request #4935 from libgit2/ethomson/pcre
Use PCRE for our fallback regex engine when regcomp_l is unavailable
|
|
|
59647e1a
|
2019-04-08T15:54:25
|
|
remote: add callback to resolve URLs before connecting
Since libssh2 doesn't read host configuration from the config file,
this callback can be used to hand over URL resolving to the client
without touching the SSH implementation itself.
|
|
|
ac2b235e
|
2019-05-21T12:22:40
|
|
regex: use REGEX_BACKEND as the cmake option name
This avoids any misunderstanding with the REGEX keyword in cmake.
|
|
|
4aa36ff2
|
2019-05-21T12:18:47
|
|
Merge pull request #5075 from libgit2/ethomson/ignore_skip_bom
Skip UTF8 BOM in ignore files
|
|
ada1cd01
|
2019-05-21T21:35:57
|
|
Use tabs for indentation (#5079).
|
|
|
b575c242
|
2019-05-21T20:20:04
|
|
Fix indentation (#5079).
|
|
|
2c2e924b
|
2019-05-21T20:17:48
|
|
We still need to update pkgconfig variables when zlib is unbundled (#5079).
|
|
|
06dbf734
|
2019-05-21T15:44:32
|
|
We've already added `ZLIB_LIBRARIES` to `LIBGIT2_LIBS` so don't also add the `z` library (libgit2/#5079).
|
|
|
0fd259ed
|
2019-05-20T12:44:37
|
|
define SYMBOLIC_LINK_FLAG_DIRECTORY if not defined
|
|
|
133bceba
|
2019-05-19T13:57:13
|
|
ignore: skip UTF8 BOM in ignore file
|
|
|
e269b343
|
2019-05-19T13:12:47
|
|
ignore: only skip first leading slash
For compatibility with git, only skip the first leading slash in an
ignore file. That is: `/a.txt` indicates to ignore a file named `a.txt`
at the root. However `//b.txt` does not indicate that a file named
`b.txt` at the root should be ignored.
|
|
|
31f8f82a
|
2018-03-02T12:18:59
|
|
diff_driver: detect memory allocation errors when loading diff driver
When searching for a configuration key for the diff driver, we construct
the config key by modifying a buffer and then passing it to
`git_config_get_multivar_foreach`. We do not check though whether the
modification of the buffer actually succeded, so we could in theory end
up passing the OOM buffer to the config function.
Fix that by checking return codes. While at it, switch to use
`git_buf_PUTS` to avoid repetition of the appended string to calculate
its length.
|
|
|
9ceafb57
|
2019-01-12T22:55:31
|
|
regexec: use pcre as our fallback/builtin regex
Use PCRE 8.42 as the builtin regex implementation, using its POSIX
compatibility layer. PCRE uses ASCII by default and the users locale
will not influence its behavior, so its `regcomp` implementation is
similar to `regcomp_l` with a C locale.
|
|
|
ce6d624a
|
2019-05-19T10:30:04
|
|
regex: optionally use PCRE2
Use PCRE2 and its POSIX compatibility layer if requested by the user.
Although PCRE2 is adequate for our needs, the PCRE2 POSIX layer as
installed on Debian and Ubuntu systems is broken, so we do not opt-in to
it by default to avoid breaking users on those platforms.
|
|
|
69ecdad5
|
2019-05-19T10:09:55
|
|
regex: use system PCRE if available
Attempt to locate a system-installed version of PCRE and use its POSIX
compatibility layer, if possible.
|
|
|
622166c4
|
2019-05-18T19:37:59
|
|
regex: disambiguate builtin vs system pcre
|
|
|
c6e48fef
|
2019-02-17T21:51:34
|
|
regex: allow regex selection in cmake
Users can now select which regex implementation they want to use: one of
the system `regcomp_l`, the system PCRE, the builtin PCRE or the
system's `regcomp`.
By default the system `regcomp_l` will be used if it exists, otherwise
the system PCRE will be used. If neither of those exist, then the
builtin PCRE implementation will be used.
The system's `regcomp` is not used by default due to problems with
locales.
|
|
|
fe1fb36e
|
2019-01-13T21:10:50
|
|
win32: move type definitions for improved inclusion
Move some win32 type definitions to a standalone file so that they can
be included before other header files try to use the definitions.
|
|
|
02683b20
|
2019-01-12T23:06:39
|
|
regexec: prefix all regexec function calls with p_
Prefix all the calls to the the regexec family of functions with `p_`.
This allows us to swap out all the regular expression functions with our
own implementation. Move the declarations to `posix_regex.h` for
simpler inclusion.
|
|
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c9f116f1
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2019-05-12T22:06:00
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Merge branch 'pr/5061'
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ab27c835
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2019-05-12T22:05:26
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revwalk: update error message for clarity
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1e3a639d
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2019-05-12T21:54:39
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Merge pull request #5065 from danielgindi/feature/win32_symlink_dir
Support symlinks for directories in win32
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7f562f2c
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2019-05-12T11:00:31
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Merge pull request #5057 from eaigner/merge-rebase-onto-name
rebase: orig_head and onto accessors
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6990a492
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2019-05-06T11:39:51
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revwalk: fix memory leak in error handling
This is not implemented and should fail, but it should also not leak. To
allow the memory debugger to find leaks and fix this one we test this.
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336e98bb
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2019-05-06T14:51:52
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Moved dwFlags declaration to beginning of scope
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37a7adb5
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2019-05-05T07:49:09
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Support symlinks for directories in win32
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d55bb479
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2019-04-26T15:59:49
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git_revwalk_push_range: do not crash if range is missing
If someone passes just one ref (i.e. "master") and misses passing the
range we should be nice and return an error code instead of crashing.
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604e2811
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2019-05-02T12:09:23
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Merge pull request #5063 from pks-t/pks/cmake-regcomp-fix
cmake: correctly detect if system provides `regcomp`
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ee3d71fb
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2019-04-26T08:01:56
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cmake: fix include ordering issues with bundled deps
When linking against bundled libraries, we include their header
directories by using "-isystem". The reason for that is that we
want to handle our vendored library headers specially, most
importantly to ignore warnings generated by including them. By
using "-isystem", though, we screw up the order of searched
include directories by moving those bundled dependencies towards
the end of the lookup order. Like this, chances are high that any
other specified include directory contains a file that collides
with the actual desired include file.
Fix this by not treating the bundled dependencies' include
directories as system includes. This will move them to the front
of the lookup order and thus cause them to override
system-provided headers. While this may cause the compiler to
generate additional warnings when processing bundled headers,
this is a tradeoff we should make regardless to fix builds on
systems hitting this issue.
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13cb9f7a
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2019-02-25T11:35:16
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cmake: correctly detect if system provides `regcomp`
We assume that if we are on Win32, Amiga OS, Solaris or SunOS,
that the regcomp(3P) function cannot be provided by the system.
Thus we will in these cases always include our own, bundled regex
sources to make a regcomp implementation available. This test is
obviously very fragile, and we have seen it fail on MSYS2/MinGW
systems, which do in fact provide the regcomp symbol. The effect
is that during compilation, we will use the "regex.h" header
provided by MinGW, but use symbols provided by ourselves. This
in fact may cause subtle memory layout issues, as the structure
made available via MinGW doesn't match what our bundled code
expects.
There's one more problem with our regex detection: on the listed
platforms, we will incorrectly include the bundled regex code
even in case where the system provides regcomp_l(3), but it will
never be used for anything.
Fix the issue by improving our regcomp detection code. Instead of
relying on a fragile listing of platforms, we can just use
`CHECK_FUNCTION_EXISTS` instead. This will not in fact avoid the
header-ordering problem. But we can assume that as soon as a
system-provided "regex.h" header is provided, that
`CHECK_FUNCTION_EXISTS` will now correctly find the desired
symbol and thus not include our bundled regex code.
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e44110db
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2019-03-20T12:28:45
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Correctly write to missing locked global config
Opening a default config when ~/.gitconfig doesn't exist, locking it,
and attempting to write to it causes an assertion failure.
Treat non-existent global config file content as an empty string.
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bc5b19e6
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2019-04-29T09:01:45
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Merge pull request #4561 from pks-t/pks/downcasting
[RFC] util: introduce GIT_DOWNCAST macro
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0c71e4cb
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2019-04-26T10:38:02
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refspec: fix transforming nested stars
When we transform a refspec with a component containing a glob, then
we simply copy over the component until the next separator from
the matching ref. E.g. if we have a ref "refs/heads/foo/bar" and
a refspec "refs/heads/*/bar:refs/remotes/origin/*/bar", we:
1. Copy over everything until hitting the glob from the <dst>
part: "refs/remotes/origin/".
2. Strip the common prefix of ref and <src> part until the glob,
which is "refs/heads/". This leaves us with a ref of "foo/bar".
3. Copy from the ref until the next "/" separator, resulting in
"refs/remotes/origin/foo".
4. Copy over the remaining part of the <dst> spec, which is
"bar": "refs/remotes/origin/foo/bar".
This worked just fine in a world where globs in refspecs were
restricted such that a globbing component may only contain a
single "*", only. But this restriction has been lifted, so that a
glob component may be nested between other characters, causing
the above algorithm to fail. Most notably the third step, where
we copy until hitting the next "/" separator, might result in a
wrong transformation. Given e.g. a ref "refs/gbranchg/head" and a
refspec "refs/g*g/head:refs/remotes/origin/*", we'd also be
copying the "g" between "branch" and "/" and end up with the
wrong transformed ref "refs/remotes/origin/branchg".
Instead of copying until the next component separator, we should
copy until we hit the pattern after the "*". So in the above
example, we'd copy until hitting the string "g/head".
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51214b85
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2019-04-26T10:15:49
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refs: loosen restriction on wildcard "*" refspecs
In commit cd377f45c9 (refs: loosen restriction on wildcard "*"
refspecs, 2015-07-22) in git.git, the restrictions on wildcard
"*" refspecs has been loosened. While wildcards were previously
only allowed if the component is a single "*", this was changed
to also accept other patterns as part of the component.
We never adapted to that change and still reject any wildcard
patterns that aren't a single "*" only. Update our tests to
reflect the upstream change and adjust our own code accordingly.
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e215f475
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2019-04-21T21:36:36
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rebase: orig_head and onto accessors
The rebase struct stores fields with information about the current
rebase process, which were not accessible via a public interface.
Accessors for getting the `orig_head` and `onto` branch
names and object ids have been added.
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b3923cf7
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2019-04-17T13:43:52
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Merge pull request #5050 from libgit2/ethomson/windows_init_traversal
git_repository_init: stop traversing at windows root
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45f24e78
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2019-04-12T08:54:06
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git_repository_init: stop traversing at windows root
Stop traversing the filesystem at the Windows directory root. We were
calculating the filesystem root for the given directory to create, and
walking up the filesystem hierarchy. We intended to stop when the
traversal path length is equal to the root path length (ie, stopping at
the root, since no path may be shorter than the root path).
However, on Windows, the root path may be specified in two different
ways, as either `Z:` or `Z:\`, where `Z:` is the current drive letter.
`git_path_dirname_r` returns the path _without_ a trailing slash, even
for the Windows root. As a result, during traversal, we need to test
that the traversal path is _less than or equal to_ the root path length
to determine if we've hit the root to ensure that we stop when our
traversal path is `Z:` and our calculated root path was `Z:\`.
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cc8a9892
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2019-04-16T18:13:31
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config_file: check result of git_array_alloc
git_array_alloc can return NULL if no memory is available, causing
a segmentation fault in memset. This adds GIT_ERROR_CHECK_ALLOC
similar to how other parts of the code base deal with the return
value of git_array_alloc.
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431601f2
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2019-04-05T15:05:10
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iterator: make use the `GIT_CONTAINER_OF` macro
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b51789ac
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2019-04-16T13:20:08
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transports: make use of the `GIT_CONTAINER_OF` macro
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2e246474
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2019-04-16T13:19:53
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refdb_fs: make use of the `GIT_CONTAINER_OF` macro
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65203b5a
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2019-04-16T13:21:16
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config_file: make use of `GIT_CONTAINER_OF` macro
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b5f40441
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2019-04-16T13:21:03
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util: introduce GIT_CONTAINER_OF macro
In some parts of our code, we make rather heavy use of casting
structures to their respective specialized implementation. One
example is the configuration code with the general
`git_config_backend` and the specialized `diskfile_header`
structures. At some occasions, it can get confusing though with
regards to the correct inheritance structure, which led to the
recent bug fixed in 2424e64c4 (config: harden our use of the
backend objects a bit, 2018-02-28).
Object-oriented programming in C is hard, but we can at least try
to have some checks when it comes to casting around stuff. Thus,
this commit introduces a `GIT_CONTAINER_OF` macro, which accepts
as parameters the pointer that is to be casted, the pointer it
should be cast to as well as the member inside of the target
structure that is the containing structure. This macro then tries
hard to detect mis-casts:
- It checks whether the source and target pointers are of the
same type. This requires support by the compiler, as it makes
use of the builtin `__builtin_types_compatible_p`.
- It checks whether the embedded member of the target structure
is the first member. In order to make this a compile-time
constant, the compiler-provided `__builtin_offsetof` is being
used for this.
- It ties these two checks together by the compiler-builtin
`__builtin_choose_expr`. Based on whether the previous two
checks evaluate to `true`, the compiler will either compile in
the correct cast, or it will output `(void)0`. The second case
results in a compiler error, resulting in a compile-time check
for wrong casts.
The only downside to this is that it relies heavily on
compiler-specific extensions. As both GCC and Clang support these
features, only define this macro like explained above in case
`__GNUC__` is set (Clang also defines `__GNUC__`). If the
compiler is not Clang or GCC, just go with a simple cast without
any additional checks.
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ed959ca2
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2019-04-16T12:36:24
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Merge pull request #5027 from ddevault/master
patch_parse.c: Handle CRLF in parse_header_start
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c4cd69b2
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2019-04-07T19:10:16
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Merge pull request #5039 from libgit2/ethomson/win32_hash
sha1: don't inline `git_hash_global_init` for win32
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30c06b60
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2019-03-22T23:56:10
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patch_parse.c: Handle CRLF in parse_header_start
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9d117e20
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2019-04-05T10:22:46
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ignore: treat paths with trailing "/" as directories
The function `git_ignore_path_is_ignored` is there to test the
ignore status of paths that need not necessarily exist inside of
a repository. This has the implication that for a given path, we
cannot always decide whether it references a directory or a file,
and we need to distinguish those cases because ignore rules may
treat those differently. E.g. given the following gitignore file:
*
!/**/
we'd only want to unignore directories, while keeping files
ignored. But still, calling `git_ignore_path_is_ignored("dir/")`
will say that this directory is ignored because it treats "dir/"
as a file path.
As said, the `is_ignored` function cannot always decide whether
the given path is a file or directory, and thus it may produce
wrong results in some cases. While this is unfixable in the
general case, we can do better when we are being passed a path
name with a trailing path separator (e.g. "dir/") and always
treat them as directories.
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aeea1c46
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2019-04-04T15:06:44
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Merge pull request #4874 from tiennou/test/4615
Test that largefiles can be read through the tree API
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