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GraphQL Introspection Query

query IntrospectionQuery { __schema { queryType { name } mutationType { name } subscriptionType { name } types { ...FullType } directives { name description locations args { ...InputValue } } } } fragment FullType on __Type { kind name description fields(includeDeprecated: true) { name description args { ...InputValue } type { ...TypeRef } isDeprecated deprecationReason } inputFields { ...InputValue } interfaces { ...TypeRef } enumValues(includeDeprecated: true) { name description isDeprecated deprecationReason } possibleTypes { ...TypeRef } } fragment InputValue on __InputValue { name description type { ...TypeRef } defaultValue } fragment TypeRef on __Type { kind name ofType { kind name ofType { kind name ofType { kind name ofType { kind name ofType { kind name ofType { kind name ofType { kind name } } } } } } } }

Thursday, January 2, 2025 Read
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Rules that terminal programs follow

“Rules” that terminal programs follow rule 1: noninteractive programs should quit when you press Ctrl-C rule 2: TUIs should quit when you press q rule 3: REPLs should quit when you press Ctrl-D on an empty line rule 4: don’t use more than 16 colours rule 5: vaguely support readline keybindings rule 5.1: Ctrl-W should delete the last word rule 6: disable colours when writing to a pipe rule 7: - means stdin/stdout

Wednesday, December 25, 2024 Read
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Smarter than 'Ctrl+F': Linking Directly to Web Page Content

Smarter than ‘Ctrl+F’: Linking Directly to Web Page Content syntax https://example.com/page.html#:~:text=[prefix-,]textStart[,textEnd][,-suffix] example https://developer.mozilla.org/en-US/docs/Web/URI/Fragment/Text_fragments#:~:text=without%20relying%20on%20the%20presence%20of%20IDs

Wednesday, December 25, 2024 Read
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Mac 小众软件推荐与工作流分享(2024)

Mac 小众软件推荐与工作流分享(2024)

Thursday, November 14, 2024 Read
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Objective-See: 一个关于 Apple 设备隐私与安全的开源项目组织

Objective-See: 一个关于 Apple 设备隐私与安全的开源项目组织 今天搜小工具的时候发现他们做了一堆 macOS 上的开源软件，基本都是和隐私与安全相关的。 KnockKnock: 查看你的 Mac 上有哪些后台进程、守护进程、启动项、内核扩展、登录项、浏览器插件等等。能看到的比那个「Login Items」详细的多（有的软件通过其他方式自启动） LuLu: 一个开源的 macOS 上的网络防火墙，可以让你详细的控制每个软件的网络连接。（类似 Hands Off!） TaskExplorer: 一个增强版的任务管理器，可以看到应用的签名、打开的文件、网络连接等等，还可以根据 sha256 自动帮你搜索 VirusTotal 结果。 Do Not Disturb: 可以阻止你的 Mac 被打扰（没错），当你的 Mac 被别人打开盖子时可以发送警告、执行脚本、检测设备变化之类的。 BlockBlock: 可以阻止后台的持久化安装，RansomWhere 可以检测文件被加密的行为，还有一些杂七杂八的独立工具。 https://objective-see.org

Wednesday, November 13, 2024 Read
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Advanced Shell Scripting Techniques: Automating Complex Tasks with Bash

Advanced Shell Scripting Techniques: Automating Complex Tasks with Bash Advanced Shell Scripting Techniques: Automating Complex Tasks with Bash Use Built-in Commands Built-in commands execute faster because they don’t require loading an external process. Minimize Subshells Subshells can be expensive in terms of performance. # Inefficient output=$(cat file.txt) # Efficient output=$(<file.txt) Use Arrays for Bulk Data When handling a large amount of data, arrays can be more efficient and easier to manage than multiple variables. # Inefficient item1="apple" item2="banana" item3="cherry" # Efficient items=("apple" "banana" "cherry") for item in "${items[@]}"; do echo "$item" done Enable Noclobber To prevent accidental overwriting of files. set -o noclobber Use Functions Functions allow you to encapsulate and reuse code, making scripts cleaner and reducing redundancy. Efficient File Operations When performing file operations, use efficient techniques to minimize resource usage. # Inefficient while read -r line; do echo "$line" done < file.txt # Efficient while IFS= read -r line; do echo "$line" done < file.txt Parallel Processing Tools like xargs and GNU parallel can be incredibly useful. Error Handling Robust error handling is critical for creating reliable and maintainable scripts. # Exit on Error: Using set -e ensures that your script exits immediately if any command fails, preventing cascading errors. set -e # Custom Error Messages: Implement custom error messages to provide more context when something goes wrong. command1 || { echo "command1 failed"; exit 1; } # Trap Signals: Use the `trap` command to catch and handle signals and errors gracefully. trap 'echo "Error occurred"; cleanup; exit 1' ERR function cleanup() { # Cleanup code } # Validate Inputs: Always validate user inputs and script arguments to prevent unexpected behavior. if [[ -z "$1" ]]; then echo "Usage: $0 <argument>" exit 1 fi # Logging: Implement logging to keep track of script execution and diagnose issues. logfile="script.log" exec > >(tee -i $logfile) exec 2>&1 echo "Script started" Automating Complex System Administration Tasks: Automated Backups System Monitoring User Management Automated Updates Network Configuration

Wednesday, September 25, 2024 Read
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Google Infra

Google Infra Google’s 5-generation network architecture in ten years

Tuesday, September 24, 2024 Read
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Supply chain attack

Go articles 提高警惕，供应链攻击就在你我身边 github.com/siruspen/logrus false github.com/sirupsen/logrus true

Friday, September 13, 2024 Read
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Lightweight Linux Distributions For Older PCs

https://www.freecodecamp.org/news/lightweight-linux-distributions-for-your-pc/ Name Site Comment Puppy Linux https://puppylinux-woof-ce.github.io/ This tiny OS weighs in at under 300MB, so it can run smoothly even on systems with as little as 512MB of RAM. Bodhi Linux https://www.bodhilinux.com/ System requirements are just 512MB of RAM and a 500MHz processor. Peppermint OS https://peppermintos.com/ It only needs 512MB of RAM to run, so it will fly on that Pentium 4 machine or Core 2 Duo laptop you have stashed in your closet. While Peppermint OS is light on local resources, it integrates well with cloud and web apps. The OS builds in close integration with services like Dropbox, Google Drive, and more. AntiX https://antixlinux.com/ AntiX is designed to run on systems with as little as 64MB of RAM and a Pentium II processor. Lubuntu https://lubuntu.me/ Lubuntu will run smoothly on computers with as little as 512 MB of RAM and a 1 GHz processor.

Tuesday, August 20, 2024 Read
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Go articles

Go articles 学会 gin 参数校验之 validator 库，看这一篇就足够了 字符串约束 excludesall：不包含参数中任意的 UNICODE 字符，例如 excludesall=ab excludesrune：不包含参数表示的 rune 字符，excludesrune=asong startswith：以参数子串为前缀，例如 startswith=hi endswith：以参数子串为后缀，例如 endswith=bye。 contains=：包含参数子串，例如 contains=email containsany：包含参数中任意的 UNICODE 字符，例如 containsany=ab containsrune：包含参数表示的 rune 字符，例如`containsrune=asong excludes：不包含参数子串，例如 excludes=email 范围约束 范围约束的字段类型分为三种： 对于数值，我们则可以约束其值 对于切片、数组和 map，我们则可以约束其长度 对于字符串，我们则可以约束其长度 常用 tag 介绍： ne：不等于参数值，例如 ne=5 gt：大于参数值，例如 gt=5 gte：大于等于参数值，例如 gte=50 lt：小于参数值，例如 lt=50 lte：小于等于参数值，例如 lte=50 oneof：只能是列举出的值其中一个，这些值必须是数值或字符串，以空格分隔，如果字符串中有空格，将字符串用单引号包围，例如 oneof=male female。 eq：等于参数值，注意与 len 不同。对于字符串，eq 约束字符串本身的值，而 len 约束字符串长度。例如 eq=10 len：等于参数值，例如 len=10 max：小于等于参数值，例如 max=10 min：大于等于参数值，例如 min=10 Fields 约束 eqfield：定义字段间的相等约束，用于约束同一结构体中的字段。例如：eqfield=Password eqcsfield：约束统一结构体中字段等于另一个字段（相对），确认密码时可以使用，例如：eqfiel=ConfirmPassword nefield：用来约束两个字段是否相同，确认两种颜色是否一致时可以使用，例如：nefield=Color1 necsfield：约束两个字段是否相同（相对）

Tuesday, August 20, 2024 Read
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Git force push

https://www.jvt.me/posts/2021/10/23/undo-force-push/ https://www.jvt.me/posts/2018/09/18/safely-force-git-push/ git push --force-with-lease

Friday, July 26, 2024 Read
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Go leetcode

https://books.halfrost.com/leetcode/

Thursday, June 20, 2024 Read