git-mirror | synchronizing two-way mirroring | Data Processing library
kandi X-RAY | git-mirror Summary
kandi X-RAY | git-mirror Summary
Scripts for setting up and synchronizing two-way mirroring between two Git repositories
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Trending Discussions on git-mirror
QUESTION
I'm trying to add tests for our iOS app on the newest Apple Sillicon M1 chip. One of the dependency that our application has on 3rd party libraries is on the Ceres-Solver. I've been trying for a couple of days now to compile ceres for the newest platform but all my attempts have failed.
So we're generating the build files using CMake and then I tried compiling both with Xcode and with xcodebuild. The build is successful but whenever I tried to link the libceres.a library to our application, I get a:
Building for Mac Catalyst, but the linked library 'libceresMacOS.a' was built for macOS. You may need to restrict the platforms for which this library should be linked in the target editor, or replace it with an XCFramework that supports both platforms.
I find this quite strange because I do build in Xcode and I am targeting the same platform ("My Mac") in compiling ceres and our application. One of my suspicions is that I'm setting some wrong flags in the CMake command, this is what I'm running it with
...ANSWER
Answered 2021-Mar-01 at 16:33After some more researching I figured out how to make this work, in case anyone stumbles upon the same problem.
I ended up reading this issue description (link) and made me think I should try and use a different code generator.
My cmake configuration was correct however apparently there is a bug with using XCode as the code generator (in here -G"$GENERATOR_NAME" ). After I set GENERATOR_NAME=Ninja I managed to compile a version of the library that is for Mac Catalyst.
QUESTION
I'm writing a library that has a few dependencies that are pulled in via CMake's FetchContent. In my toplevel CMakeLists.txt, close to the top I have:
include(external/dependencies.cmake) which contains
ANSWER
Answered 2021-Jan-27 at 08:44Because in fmt, install rules are disabled if it's a subproject...
QUESTION
The following minimal benchmark rebuilds single-threaded code with -O3 -march=native on each machine, multiplying matrices that are either square or highly non-square (one dimension = 2).
ANSWER
Answered 2020-May-19 at 09:13As suggested by Peter Cordes in his comment, it seems to boil down to memory throughput.
Results of mbw 1000 show it:
i5-6600:
QUESTION
When multiplying two data-mapped matrices (Eigen::Map) I notice a significant performance difference depending on how the memory was allocated. When using memory coming from a custom allocation, it's almost twice as fast compared to using (also aligned) memory coming from an std::vector with data allocated also by Eigen::aligned_allocator.
Minimal benchmark:
...ANSWER
Answered 2020-May-10 at 19:17As pointed out in the comments by PeterT and chtz, the manually allocated version does not initialize the memory (in contrast to std::vector), accessing it is undefined behavior, and thus the MMU likely does something smart, i.e., not actually accessing the memory.
When also initializing the memory in the second part, both versions show similar performance:
QUESTION
Embedded experts, is this possible without major modifications?
I'm building firmware that has both a Linux kernel and a minimal RTOS that runs when resuming from sleep. The same toolchain, aarch64-linux-gnu, is used for both Linux and RTOS code. The reason why it doesn't need a separate bare metal toolchain for RTOS is because the vendor has their own stripped down C runtime which they use instead of glibc.
But that poorly made C runtime is missing a lot of functions, so we want to use a more full featured one. We could use newlib but that would require a 2nd toolchain, which want to avoid.
But I can't find any bare metal or RTOS project using glibc. Currently, it can build with glibc, but crashes real soon, almost certainly because we didn't call the glibc initialization code:
...ANSWER
Answered 2020-Apr-15 at 11:20In glibc, malloc depends on a low-level allocator such as sbrk (or mmap). You can probably fake something like sbrk on a bare-metal target, but you would have to stub out all the indirect malloc dependencies (including multi-threading support).
The glibc printf implementation is coupled to the fopen implementation, which depends on dlopen for loading character set conversion code (the gconv modules). This even applies to the statically linked case. There is really no way to escape the dynamic linker without some far-reaching changes.
C++ initialization should be fairly easy to get right, even for bare-metal targets. I do not think you need any libc for that, just a little bit of startup code that matches what your target needs. (On some targets, it is sufficient to call the magic _init function before your application.) glibc has some elaborate facilities for that as well, but they are for supporting dynamic linking and dlopen/dlclose. For statically linked binaries, they are not needed.
A high-quality port of glibc to a non-Linux. non-GNU operating system is definitely a lot of work. If the target is bare-metal or a non-POSIX RTOS, you probably have to start with a POSIX shim layer. Even then, the result will be a not-quite-glibc target, and you still need a separate toolchain.
It may be better to go with newlib (or the existing RTOS libc) and obtain the missing libc functionality via gnulib and similar projects.
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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Install git-mirror
Login as the GitLab git user in the GitLab server, generate SSH key: sudo su git ssh-keygen
Create a dedicated GitLab mirroring account in GitLab web interface, upload the SSH public key into the account profile.
Create the mirror project in GitLab web interface, give Master access to the mirroring account.
Copy the SSH public key to origin repository SSH authorized keys: scp ~/.ssh/id_rsa.pub user@origin-repository-host: ssh user@origin-repository-host cat id_rsa.pub >> ~/.ssh/authorized_keys logout
(Optional) If origin repository username differs from git, setup SSH host alias: cat >> ~/.ssh/config << EOT Host gitmirror-origin-host User user HostName origin-repository-host EOT
Assure SSH server accepts connections to localhost in GitLab server.
Setup the mirroring tools workspace for git user and configure git-mirror: sudo mkdir /var/opt/gitlab/mirroring-tools sudo chown git: /var/opt/gitlab/mirroring-tools sudo su git cd ~/mirroring-tools mkdir utils cd utils git clone https://github.com/mrts/git-mirror.git cd git-mirror/scripts/satellite # change the substituted values below according to your needs sed -i 's#CONF_ORIGIN_URL=.*#CONF_ORIGIN_URL=origin-repository-host:git/repo.git#' \ synchronize-git-repositories-with-satellite.config sed -i 's#CONF_OTHER_URL=.*#CONF_OTHER_URL=localhost:mirror/repo.git#' \ synchronize-git-repositories-with-satellite.config sed -i 's#CONF_GITDIR=.*#CONF_GITDIR=/var/opt/gitlab/mirroring-tools/repo.git#' \ synchronize-git-repositories-with-satellite.config sed -i 's#CONF_OTHER_GITDIR=.*#CONF_OTHER_GITDIR=/var/opt/gitlab/git-data/repositories/mirror/repo.git#' \ synchronize-git-repositories-with-satellite.config
Run the setup script: ./setup-synchronize-git-repositories-with-satellite.sh The setup script does the following: Sets up the satellite repository with origin and GitLab remotes Sets up the post-receive hook in GitLab repository to push changes from GitLab to origin Prints the line that should be added to crontab for running the synchronization job. Assure passwordless access works, no password propmts should appear during setup.
Add the line that was printed in the end of setup scrip run to crontab: sudo sh -o noglob -c 'echo "*/1 * * * * git ...path..." >> /etc/crontab'
Test and examine logs. Verify that all branches are present and contain right commits in GitLab. Create a merge request and merge it in GitLab, verify that merge is mirrored to origin immediately. Commit to any branch in origin, verify that change is mirrored in GitLab after cron has run. Rewrite master history and delete master in GitLab, verify that this does not get through to origin and results in error in logs. Delete and create any other branch in GitLab, verify that delete and create is mirrored to origin immediately. Delete and create branches in origin, verify that change is mirrored in GitLab after cron has run.
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