Lib.rs

Rust 编写的 PartiQL 实现

文档（进行中）

[tests.hello]
script = '''
cat<<EOS | pq -q "SELECT NAME, LOGNAME" -t json
{
  "SHELL": "/bin/bash",
  "NAME": "my machine name",
  "PWD": "/home/fuyutarow/piqel",
  "LOGNAME": "fuyutarow",
  "HOME": "/home/fuyutarow",
  "LANG": "C.UTF-8",
  "USER": "fuyutarow",
  "HOSTTYPE": "x86_64",
  "_": "/usr/bin/env"
}
EOS
'''
tobe = '''
[
  {
    "NAME": "my machine name",
    "LOGNAME": "fuyutarow"
  }
]
'''

系列

常数表

• 功能
• 动机
• 用法
  • 美化打印
  • 转换文件格式
  • 计算 BMI
• 安装
• 测试
• 许可证

功能

动机

什么是 PartiQL？

用法

美化打印

curl -s "https://api.github.com/repos/fuyutarow/piqel/commits?per_page=1" | pq

转换文件格式

使用 -t 选项 c 将 Json、Yaml、Toml 和 XML 转换为彼此。

cat pokemon.json | pq -t yaml

cat pokemon.json | pq -t yaml | pq -t toml

与现有命令 yj 的比较

*1 下述格式的 TOML 无法用 yj 序列化，但可以通过相应地替换字段用 pq 序列化。

{
  "name": "partiql-pokemon",
  "dependencies": {
    "react": "^16.13.1",
    "react-dom": "^16.13.1"
  },
  "license": "MIT"
}

计算 BMI

1. 下载文件并在本地计算 BMI。

curl -s https://raw.githubusercontent.com/fuyutarow/pokemon.json/master/en/pokemon.json | pq -q "SELECT name, weight/height/height AS bmi ORDER BY bmi DESC LIMIT 20"

2. 在终端，向服务器发送查询以在远程计算 BMI。

curl https://partiql-pokemon.vercel.app/api/pokemon/ja -G --data-urlencode "q= SELECT name, weight/height/height AS bmi ORDER BY bmi DESC LIMIT 20"

3. 在网页浏览器中，向服务器发送查询以在远程计算 BMI。

安装

brew install fuyutarow/tap/pq
pq -h

scoop install pq
pq -h

转换数据

env | jo | pq "SELECT NAME AS name, USER AS user"

ip 命令仅在 Linux 和 WSL 中可用，不在 Mac 中。

ip -j -p | pq "$(cat<<EOS
SELECT
  address,
  info.family AS inet,
  info.local
FROM addr_info AS info
WHERE inet LIKE 'inet%'
EOS
)"

• [x] SELECT
• [x] FROM
• [x] LEFT JOIN
• [x] WHERE
• [x] LIKE
• [x] ORDER BY
• [x] LIMIT

更多示例

测试

使用 tests-make 测试 CLI pq。

brew install fuyutarow/tap/tests-make
tests-make tests-make/index.toml

或

makers test:pq

代码覆盖率

cargo install cargo-kcov
cargo kcov

或

makers cov

准备

makers install-dev

构建

makers build
makers build:pq ;: for pq commnad

LICENCE

附录

可提取字段的工具比较

jq方法

curl -s "https://api.github.com/repos/fuyutarow/piqel/commits?per_page=1" | jq  ".[].commit.author"

gron方法

curl -s "https://api.github.com/repos/fuyutarow/piqel/commits?per_page=1" | gron | grep "commit.author" | gron -u

nusehll方法

curl -s "https://api.github.com/repos/fuyutarow/piqel/commits?per_page=1" | from json | get commit.author | to json

pq方法

curl -s "https://api.github.com/repos/fuyutarow/piqel/commits?per_page=1" | pq -q "SELECT commit.author"

utils

• makers

1. https://github.com/sclevine/yj ↩︎

2. https://github.com/stedolan/jq ↩︎

3. https://github.com/tomnomnom/gron ↩︎

4. https://github.com/nushell/nushell ↩︎

5. https://github.com/fuyutarow/piqel ↩︎

6. https://github.com/sagiegurari/cargo-make … 运行 cargo install cargo-make 以使用 makers 命令。 ↩︎