go-tools
fzf
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go-tools
- Ask HN: What are some interesting tools or code repos you discovered recently
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Gopher Pythonista #1: Moving From Python To Go
Another useful tool in Go is the go vet command, which helps to identify common coding mistakes such as unreachable code or useless comparisons. In addition, external linters like staticcheck can be used to detect bugs and performance issues with ease.
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Find project-wide unused code using Golang's LSP
For the last year or so (as of 2023) Golang has only had one active project for linting unused code, namely: unused from https://github.com/dominikh/go-tools. It works really well, but only within a package, not across packages, like within a traditional monolith. unused used to be part of another project called staticcheck, that did indeed have a flag for detecting project-wide unused code, but that is no longer supported. There are good reasons for that (see this Github discussion), mainly that it's computationally expensive.
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Why tf golang let's you create maps with duplicated keys
To a degree, sure. It can't pick it up in general, because of the halting problem. But some trivial cases could be caught. Feel free to write such a linter, I'm sure Dominik would gladly merge it, for example.
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Tools besides Go for a newbie
IDE: use whatever make you productive. I personally use vscode. VCS: git, as golang communities use github heavily as base for many libraries. AFAIK Linter: use staticcheck for linting as it looks like mostly used linting tool in go, supported by many also. In Vscode it will be recommended once you install go plugin. Libraries/Framework: actually the standard libraries already included many things you need, decent enough for your day-to-day development cycles(e.g. `net/http`). But here are things for extra: - Struct fields validator: validator - Http server lib: chi router , httprouter , fasthttp (for non standard http implementations, but fast) - Web Framework: echo , gin , fiber , beego , etc - Http client lib: most already covered by stdlib(net/http), so you rarely need extra lib for this, but if you really need some are: resty - CLI: cobra - Config: godotenv , viper - DB Drivers: sqlx , postgre , sqlite , mysql - nosql: redis , mongodb , elasticsearch - ORM: gorm , entgo , sqlc(codegen) - JS Transpiler: gopherjs - GUI: fyne - grpc: grpc - logging: zerolog - test: testify , gomock , dockertest - and many others you can find here
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New linter for mixing pointer and value method receivers
Also proposal to staticcheck, will see if it goes through! https://github.com/dominikh/go-tools/issues/1337
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this result of append is never used, except maybe in other appends (SA4010)
This is the first result for that error in google. The comment in that issue explains it. You're building two array's c_code, and c_start_date which are built and then never read or returned or otherwise used.
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Zig, the Small Language
This really irritated me when I started working with go, but it stopped bothering me and now I even mostly like it.
The missing error checks are annoying, but if you have appropriate editor config it is hard to miss them: https://cdn.billmill.org/static/newsyctmp/warning.png
Basically writing go without `staticcheck`[1] is not recommended. If you do have it set up, it's pretty easy to avoid simple errors like that.
[1]: https://staticcheck.io/
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Our experience upgrading from go v1.17 to v1.18 for generics
However, recently [per this issue](https://github.com/dominikh/go-tools/issues/1270) it is safe to re-enable the ones I highlighted with strikethrough above. I would be interested in tracking issues for the remainder if you have those linked somewhere.
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What are your strategies to prevent nil pointers errors in your code base?
Unfortunately I don't know of any tools that can/do always detect it. There's this discussion for the staticcheck linter where they basically don't think it's worth false positives in order to support it a lint for it.
fzf
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Ask HN: Any tool for managing large and variable command lines?
In addition, I think bash's `operate-and-get-next` can be very helpful. When you go back through your shell history, you can hit Ctrl+o instead of enter and it will execute the command then put the next one in your history on the command line, and keep track of where you are in your history. This way, you can rerun a bunch of commands by going to the first one and Ctrl+o till you are done. And you can edit those commands and hit Ctrl+o and still go to the next previously run command.
Note: fzf's history search feature breaks this. https://github.com/junegunn/fzf/issues/2399
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pyfzf : Python Fuzzy Finder
fzf : https://github.com/junegunn/fzf
- Command Line Fuzzy Search
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So You Think You Know Git – Git Tips and Tricks by Scott Chacon
Those are the most used aliases in my gitconfig.
"git fza" shows a list of modified/new files in an fzf window, and you can select each file with tab plus arrow keys. When you hit enter, those files are fed into "git add". Needs fzf: https://github.com/junegunn/fzf
"git gone" removes local branches that don't exist on the remote.
"git root" prints out the root of the repo. You can alias it to "cd $(git root)", and zip back to the repo root from a deep directory structure. This one is less useful now for me since I started using zoxide to jump around. https://github.com/ajeetdsouza/zoxide
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Which command did you run 1731 days ago?
> my history is so noisy I had to find another way
The fzf search syntax can help, if you become familiar with it. It is also supported in atuin [2].
[1]: https://github.com/junegunn/fzf#search-syntax
[2]: https://docs.atuin.sh/configuration/config/#fuzzy-search-syn...
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Z – Jump Around
You call it with `n` and get an interactive fuzzy search for your directories. If you do `n ` instead, it’ll start the find with `` already filled in (and if there’s only one match, jump to it directly). The `ls` is optional but I find that I like having the contents visible as soon as I change a directory.
I’m also including iCloud Drive but excluding the Library directory as that is too noisy. I have a separate `nl` function which searches just inside `~/Library` for when I need it, as well as other specialised `n` functions that search inside specific places that I need a lot.
¹ https://github.com/sharkdp/fd
² https://github.com/junegunn/fzf
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alacritty-themes not working any more!!!
View on GitHub
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Fish shell 3.7.0: last release branch before the full Rust rewrite
I do find the history pager stuff interesting, but ultimately not of tremendous use for me. I rebound all my history search stuff to use fzf[1] (via a fish plugin for such[2]), and so haven't been aware of the issues
[1] https://github.com/junegunn/fzf
[2] https://github.com/PatrickF1/fzf.fish
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Ugrep – a more powerful, ultra fast, user-friendly, compatible grep
You can also use fzf with ripgrep to great effect:
[1]: https://github.com/junegunn/fzf/blob/master/ADVANCED.md#usin...
- Tell HN: My Favorite Tools
What are some alternatives?
revive - 🔥 ~6x faster, stricter, configurable, extensible, and beautiful drop-in replacement for golint
peco - Simplistic interactive filtering tool
gosec - Go security checker
zsh-autocomplete - 🤖 Real-time type-ahead completion for Zsh. Asynchronous find-as-you-type autocompletion.
golangci-lint - Fast linters Runner for Go
z - z - jump around
GNU/Emacs go-mode - Emacs mode for the Go programming language
zsh-autosuggestions - Fish-like autosuggestions for zsh
gofumpt - A stricter gofmt
mcfly - Fly through your shell history. Great Scott!
ls-lint - An extremely fast directory and filename linter - Bring some structure to your project filesystem
ranger - A VIM-inspired filemanager for the console