jq 引用索引/键及其内部值

Question

我有一个类似于以下内容的 JSON：

文件：my_data.json

{
  "hosts": {
    "1.2.3.4": { "name": "name4", "env": "test", "options": "" },
    "1.2.3.5": { "name": "name5", "env": "prod", "options": "opt1,opt2" },
    "1.2.3.6": { "name": "name6", "env": "qa", "options": "" },
    "1.2.3.7": { "name": "name7", "env": "staging", "options": "opt3,opt4" },
    "1.2.3.8": { "name": "name8", "env": "dev", "options": "opt5" },
    "1.2.3.9": { "name": "name9", "env": "prod", "options": "opt6,opt7" }
  }
}

我想从中提取一个 CSV 文件，我尝试了通过谷歌搜索找到的几个选项，但都不起作用。我的目标是得到类似以下的东西：

"1.2.3.4","name4","test",""
"1.2.3.5","name5","prod","opt1,opt2"
"1.2.3.6","name6","dev",""
"1.2.3.7","name7","staging","opt3,opt4"
"1.2.3.8","name8","dev","opt5"
"1.2.3.9","name9","prod","opt6,opt7"

我得到了以下信息，但我无法找到密钥，也没有找到获取它的方法。

jq --raw-output '.hosts[] | [.name, .env, .options] | @csv' my_data.json

这是我的结果，但看起来并不完整。如何为每个对象添加密钥？

"name4","test",""
"name5","prod","opt1,opt2"
"name6","qa",""
"name7","staging","opt3,opt4"
"name8","dev","opt5"
"name9","prod","opt6,opt7"

我做了这个：

jq --raw-output '.hosts | keys_unsorted[] | [.] | @csv' my_data.json

但是那只是获取了键，我还没有找到使用键来寻址对象的方法。

"1.2.3.4"
"1.2.3.5"
"1.2.3.6"
"1.2.3.7"
"1.2.3.8"
"1.2.3.9"

我可以尝试连接两个表，但这可能会导致错误，我知道应该有一种方法可以在 jq 中做到这一点，我只是找不到方法。

我做了几次谷歌搜索，我得到了一个有希望的结果，但它不起作用：

jq --raw-output '.hosts | keys_unsorted[] as $k | [$k, \(.[$k] | .name), \(.[$k] | .env), \(.[$k] | .options)] | @csv' my_data.json

这个返回编译错误：

jq: error: syntax error, unexpected INVALID_CHARACTER (Unix shell quoting issues?) at <top-level>, line 1:
.hosts | keys_unsorted[] as $k | [$k, \(.[$k] | .name), \(.[$k] | .env), \(.[$k] | .options)] | @csv
jq: error: syntax error, unexpected ')', expecting $end (Unix shell quoting issues?) at <top-level>, line 1:
.hosts | keys_unsorted[] as $k | [$k, \(.[$k] | .name), \(.[$k] | .env), \(.[$k] | .options)] | @csv
jq: 2 compile errors

Answer 1

使用

to_entries

访问按键：

.hosts | to_entries[] | [.key, (.value | .name, .env, .options)] | @csv

"1.2.3.4","name4","test",""
"1.2.3.5","name5","prod","opt1,opt2"
"1.2.3.6","name6","qa",""
"1.2.3.7","name7","staging","opt3,opt4"
"1.2.3.8","name8","dev","opt5"
"1.2.3.9","name9","prod","opt6,opt7"

演示