Rather than special-casing a check for `/dev/null`, this uses `stat()` to
avoid `chmod()`-ing any non-regular file. I believe this is the desirable
behavior. `UTIL_chmod()` is never called on directories at the moment, only
output files.
Instead of calling `stat()`, these functions accept the result of a previous
`stat()` call on the file in question, which will allow us to make multiple
decisions around a file without redundant `stat()` calls.
I want to introduce versions of many of these functions that take pre-
populated `stat_t` objects and use those rather than doing their own redundant
`stat()` internally. These functions will have `...Stat()` suffixes. So this
commit renames these existing functions into the active voice, to avoid
confusion.
both `--long-commmand=arg` and `--long-command arg`
are supported by macro `NEXT_FIELD()`
so that the long-command only needs to be listed once.
This extends the syntax to support new syntaxes like
`-o=FILE` or `-D=dict`,
though there is no need to advertise this capability for the time being.
Also : added `NEXT_UINT32()`,
which is wrapper around `NEXT_FIELD()`
to read integer parameters.
Use the wrapper to new field, such as `--memlimit`
which can now support both syntaxes too.
for --patch-from origin
and --filelist list
Also : removed some constrained syntax tests,
as the new argument parsing syntax is more permissive.
For example :
zstd file -of dest
used to be disallowed.
It's now allowed, and understood as:
zstd file -o dest -f
this patch reduces complexity associated with
commands requiring a separated arguments
such as :
-o filename
-D dictionary
--output-dir-flat dir
--output-dir-mirror dir
It used to be a multi-stage process with explicit context,
it's now simplified as a single macro.
Thanks to this simplification,
separated arguments logic has also been extended to
--patch-from XXX
--filelist XXX
which extends existing capability using =XXX
--patch-from=XXX
--filelist=XXX
Separated argument is useful for filenames and directories,
as it benefits from shell expansion
such as ~/dir/file
where the ~ is automatically translated by the shell.
In contrast --long-command=FILE does not interpret FILE,
so ~/ is transmitted as is to the main() function,
generally resulting in incorrect file name.
Since version 1.4.5 and commit
5af8cb7aea, if st_mtime is not defined,
programs/util.c uses utime without including utime.h which will raise
the following build failure on some of the buildroot autobuilders:
util.c: In function 'UTIL_setFileStat':
util.c:161:24: error: storage size of 'timebuf' isn't known
struct utimbuf timebuf;
^~~~~~~
Fixes:
- http://autobuild.buildroot.org/results/be902c5d110f37bce622a2215191f155b7d3e7e0
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
This adds support for just showing the version string
without the full welcome message if the log level is
less than the default. That means that you pass -q once
and you will just see "1.4.5".
This makes it easier to parse in scripts.
* adding long support for patch-from
* adding refPrefix to dictionary_decompress
* adding refPrefix to dictionary_loader
* conversion nit
* triggering log mode on chainLog < fileLog and removing old threshold
* adding refPrefix to dictionary_round_trip
* adding docs
* adding enableldm + forceWindow test for dict
* separate patch-from logic into FIO_adjustParamsForPatchFromMode
* moving memLimit adjustment to outside ifdefs (need for decomp)
* removing refPrefix gate on dictionary_round_trip
* rebase on top of dev refPrefix change
* making sure refPrefx + ldm is < 1% of srcSize
* combining notes for patch-from
* moving memlimit logic inside fileio.c
* adding display for optimal parser and long mode trigger
* conversion nit
* fuzzer found heap-overflow fix
* another conversion nit
* moving FIO_adjustMemLimitForPatchFromMode outside ifndef
* making params immutable
* moving memLimit update before createDictBuffer call
* making maxSrcSize unsigned long long
* making dictSize and maxSrcSize params unsigned long long
* error on files larger than 4gb
* extend refPrefix test to include round trip
* conversion to size_t
* making sure ldm is at least 10x better
* removing break
* including zstd_compress_internal and removing redundant macros
* exposing ZSTD_cycleLog()
* using cycleLog instead of chainLog
* add some more docs about user optimizations
* formatting
* All copyright lines now have -2020 instead of -present
* All copyright lines include "Facebook, Inc"
* All licenses are now standardized
The copyright in `threading.{h,c}` is not changed because it comes from
zstdmt.
The copyright and license of `divsufsort.{h,c}` is not changed.
When building zst under cygwin or msys2 with std=c99 the build would fail because
of an undefined fileno()/_fileno(), which is used by the IS_CONSOLE() macro.
When building with -std=c99 (gcc otherwise defaults to gnu, which implies POSIX),
which is the default of the cmake build, then including unistd.h wont define
_POSIX_VERSION and all other headers also wont expose POSIX API.
To fix this make sure to define _POSIX_C_SOURCE with the version we want before including
unistd.h and so that _POSIX_VERSION is set to the version provided by the system.
Since Cygwin/MSYS2 just follow POSIX we can also remove their special cases for
defining IS_CONSOLE().
And, for completeness, also explicitly include stdio.h which is what actually declares fileno().
Tested with the normal make file and cmake under MSYS2 and Cygwin.
* Adding new cli endpoint --diff-from=
* Appveyor conversion nit
* Using bool set trick instead of direct set
* Removing --diff-from and only leaving --diff-from=#
* Throwing error when both dictFileName vars are set
* Clean up syntax
* Renaming diff-from to patch-from
* Revering comma separated syntax clean up
* Updating playtests with patch-from
* Uncommenting accidentally commented
* Updating remaining docs and var names to be patch-from instead of diff-from
* Constifying
* Using existing log2 function and removing newly created one
* Argument order (moving prefs to end)
* Using comma separated syntax
* Moving to outside #ifndef
Cygwin currently uses the fallback implementation which just returns 1 every time,
which leads to bad performance when zstd is called with -T0 for example.
Instead use the POSIX implementation used for the BSDs which works just fine under Cygwin.
Tested under Cygwin and MSYS2.
senhuang42
Yann Collet
W. Felix Handte
Yann Collet
Fabrice Fontaine
Martin Liska
Xin Xie
Bimba Shrestha
Tobias Hieta
Mingye Wang
Yann Collet
Nick Terrell
Lehman Garrison
Philip Jones
Björn Ketelaars
Nick Terrell
Christoph Reiter
Peter Lesslie