* add tests to exercise copy_file
* Extract new function unlink_and_reopen from copy_file
The argument `ofd` to copy_file is always set to -1 unless
`open_tmpfile()` is called at generator.c:909
This change
* removes assignment to a function argument
* renames argument `ofd` to `tmpfilefd` in line with existing uses
* extracts a new function `unlink_and_reopen` which is static to util1.c
* rewrites header comments for copy_file
The Linux fs.protected_regular sysctl setting could cause rsync to fail to write a file in-place with the O_CREAT flag set, so the code now tries an open without O_CREAT when it might help to avoid an EACCES error. A testsuite script is included (and slightly improved by Wayne to ensure that it outputs a SKIP when fs.protected_regular is turned off).
- use `grep -E` and `grep -F` (`egrep` and `fgrep` are non-standard)
- use same hashbang style for all test scripts
- use explicit comparisons in test scripts
- remove redundant ; from test scripts
- make test script not executable, just like all the other scripts
- unify codestyle across all test scripts
- make openssl license exception clearer by having it at the top
- use modern links in COPYING. The text now matches:
https://www.gnu.org/licenses/gpl-3.0.txt
- fix typo
We now put the configure.sh, config.h.in, and aclocal.m4 files in the
alternate build dir along with the other generated files. This requires
that we create symlinks for configure.ac & m4 in the build dir, which is
handled on the first run of configure or prepare-source. I also changed
the patch-branch handling away from the .gen-stash dir to an automatic
build/$PATCH subdir idiom that will keep each branch's configuration
separated. These automatic build dirs are only used when there is a
.git dir, a build/master dir, and no top-dir Makefile. You'll also
want to have package/make early on your path for optimal ease of use.
- Stop setting the mtime on a file we didn't transfer (or didn't verify
the checksum) when the time diff is within the modify window.
- Stop computing a time difference (-1|0|1) when all we care about is
time equality.
Adding new-style compression that only compresses the literal data that
is sent over the wire and not also matching file data that was not sent.
This new-style compression is compatible with external zlib instances,
and will eventually become the default (once enough time has passed that
all servers support the --new-compress and --old-compress options).
NOTE: if you build rsync with an external zlib (i.e. if you specified
configure --with-included-zlib=no) you will ONLY get support for the
--new-compress option! A client will treat -z as uncompressed (with a
warning) and a server will exit with an error (unless -zz was used).
