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cargo run seems to build my app every time I run it. When there are no code changes it still tried to build it which takes 5 or 8 seconds. This says "building..." and lists all warnings.
Is there a way to simply run my binary with cargo run that will not try to build it?
I'd like it for be built only when something changed.
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I want to render JavaScript function in every 100-millisecond using node node-corn
I try many way but unable to convert cron pattern into milli seconds.
any one help me, I am using nodejs.
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I'm new, I'm learning python, I tried to install the match library with "pip install match" but it generates an error in the installation and I don't know how to solve it, please help....
enter image description here
Firstly, don’t post images.
Secondly, the error says it’s a problem with the package. So the fault is on the maintainer/owner. You can contact them to fix it.
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I am new to solana and rust, recently i have installed thier example-helloworld from this repo- https://github.com/solana-labs/example-helloworld .
Whenever i have tried to build the rust program using npm scripts or going to the rust program directory to manually run cargo build-bpf, it says - no such subcommand: +bpf.terminal error image
i have also tried the command which cargo-build-bpf,it have no error.
however i have also tried to manually build using cargo build ,it throws a error.
Your version of Rust may be out of date, can you try updating to Rust 1.53? You should be able to get it using:
rustup toolchain add 1.53
You might then need to reinstall the Solana tool suite, following the instructions at: https://docs.solana.com/cli/install-solana-cli-tools#use-solanas-install-tool
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I've used hg pull and hg update to pull some new revisions to my Ubuntu box and update my local source to the new head. There's no branching involved here. I confirmed that they were changed to the latest revision by checking a change that I made five minutes ago on Windows and it's right here, and the latest modified time on the file is clearly three minutes ago (the last build was 18 days ago).
But when I run make, it seems to think nothing has changed. I used make clean also but nothing happened. I even deleted the build output and intermediate object file directories, to no effect.
How can I make make recognize that my files have changed and rebuild them?
Turns out that I was using Debug64 as my config instead of debug64. Apparently make doesn't mention it when you try to build absolutely nothing at all, since that config does not exist.
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I want to create "my own" sudo command (for my file manager/commander written in C++/OpenGL). Please help provide necessary steps and things to consider. I know it has something to do with suid bit, but that's all I know so far.
It's all about filesystem flags, and you only to ensure that:
The executable file does belongs to root
It has the suid flag in the file system (you can set it with chattr u+s).
After you'll do that, it will be executed with root permissions even when running from a regular user.
Please also note that you can get an UID which had actually ran the program by calling getuid(), while geteuid() will always evaluate to 0.
I suggest to you to download sudo command code and modify it based on your requirement