- Factor out the dev-tools into a stand-alone, no-installed program
- Built the dev-tools if --enable-testing is specified
- Remove the --enable-dev-tools configure option
- Allow suffix on the binary name
- Update symlinks
- Cleanup Makefile
The Rust implementation is multithreaded, performs better in general and
does custom compression of btree nodes to achieve much better compression
ratios. unpack also checksums expanded metadata to validate it.
Format version has jumped to 3, no backwards compatibility, but I think
that's ok since we never made a release that contained the C++ version
of these tools.
Benchmarks
==========
On an 8 core, 16 hyperthread machine.
metadata 1G, full:
Pack size pack time unpack time
------------------------------------------------------
C++ 193M 50.3s 6.9s (no verify)
Rust 70M 1.4s 1.8s (verify)
metadata 16G, sparse:
Pack size pack time unpack time
------------------------------------------------------
C++ 21M 68s 1s (no verify)
Rust 4M 8.6s 0.5s (verify)
The rule for lib/libft.so is only enabled with --enable-testing,
so the default target shouldn't depend unconditionally on it.
With the default configure options, the build failed with:
make: *** No rule to make target 'lib/libft.so', needed by 'all'. Stop.
* Makefile: Conditional install of thin_trim
...and thin_show_duplicates symlinks.
The support for these is built only if --enable-dev-tools is used in
configure, thus we should install the symlinks conditionally.
* Conditional install of thin_trim man page
* [file_utils] spin-off syscall-related file operations
1. Eliminate the potential circular dependency between
persistent-data/block.h and persistent-data/file_utils.h,
if the former one wants to include the latter.
2. Avoid namespace pollution by removing the "using namespace std"
declaration in block.tcc.
3. Correct the header hierarchy: base/xml_utils.h now no longer
depends on the higher-level persistent-data/file_utils.h
* [file_utils] support block files in get_file_length()
The common preprocessor variable is named CPPFLAGS. configure sets this
up for us, including sourcing values from the user. Rename INCLUDES to
match, and pull the default from configure.
