用于重写URL的jq代码，其中一些值是数组和一些字符串

Question

在下面的json中，我需要重写configURL的值，并在https://后面(也是唯一的)添加staging. -忽略'http://'‘。问题是configURL键存储的一些值是数组。原始json看起来是这样的：

{
    "app1.json": {
        "content": "app-config",
        "updates": 2,
        "configURL": "https://companyX.com/app1/config.json"
    },
    "app2.json": {
        "content": "app-config",
        "updates": 2,
        "configURL": [
            "https://some-company.com/app2/config.json",
            "https://some-company.com/app2/config-resources.json",
            "http://some-company.com/app2/config-resources.json"
        ]
    },
    "app3.ini": {
        "content": "binaries",
        "scope": "deploy",
        "configURL": "https://staging.app4.com/app4/installs/binaries.ini",
        "resources": [
            "https://app4.com/resource",
            "https://app4.com/resource.bin",
            "https://app4.com/resource2.bin"
        ]
    },
    "app4.json": {
        "content": "app-config",
        "updates": 3,
        "configURL": [
            "https://different-company.com/app3/config.json",
            "https://different-company.com/app3/config-resources.json",
            "https://different-company.com/app3/config-binaries.json"
        ],
        "resources": [
            "https://different-company.com/resource",
            "https://different-company.com/resource.bin",
            "https://different-company.com/resource2.bin"
        ]
    }
}

所需的输出为

{
    "app1.json": {
        "content": "app-config",
        "updates": 2,
        "configURL": "https://staging.companyX.com/app1/config.json"
    },
    "app2.json": {
        "content": "app-config",
        "updates": 2,
        "configURL": [
            "https://staging.some-company.com/app2/config.json",
            "https://staging.some-company.com/app2/config-resources.json",
        ]
    },
    "app3.ini": {
        "content": "binaries",
        "scope": "deploy",
        "configURL": "https://staging.staging.app4.com/app4/installs/binaries.ini",
        "resources": [
            "https://app4.com/resource",
            "https://app4.com/resource.bin",
            "https://app4.com/resource2.bin"
        ]
    },
    "app4.json": {
        "content": "app-config",
        "updates": 3,
        "configURL": [
            "https://staging.different-company.com/app3/config.json",
            "https://staging.different-company.com/app3/config-resources.json",
            "https://staging.different-company.com/app3/config-binaries.json"
        ],
        "resources": [
            "https://different-company.com/resource",
            "https://different-company.com/resource.bin",
            "https://different-company.com/resource2.bin"
        ]
    }
}

我想出的以下解决方案只有在没有多个URL而只有一个的情况下才有效；我不知道如何为添加条件，以及如何修改数组中的每个值。

jq -r 'def camel:gsub( "https://"; "https://staging."); walk( if type=="object" and .configURL then (.configURL |= camel) else . end)' apps.json

Answer 1

您已经检查了一个对象的type一次--只需再检查一次：

jq -r '
  def camel:
    if type == "string" then
      gsub( "https://"; "https://staging.")
    else
      .[] |= camel
    end;

  walk( if type=="object" and .configURL then (.configURL |= camel) else . end)
' apps.json

Answer 2

另一种方法是使用(.[]? // .) -它本质上是一个if/else - ?捕获错误，// .返回原始值。

$ jq -r '(.[].configURL | (.[]? // .))' apps.json
https://companyX.com/app1/config.json
https://some-company.com/app2/config.json
https://some-company.com/app2/config-resources.json
http://some-company.com/app2/config-resources.json
https://staging.app4.com/app4/installs/binaries.ini
https://different-company.com/app3/config.json
https://different-company.com/app3/config-resources.json
https://different-company.com/app3/config-binaries.json

然后可以直接转换结果。

jq -r '(.[].configURL | (.[]? // .)) |= sub("^https://"; "https://staging.")'

您的configURL键都在同一位置，因此不需要递归/遍历，但如果需要，则需要使用select()过滤掉可能的空值

jq -r '(.. | .configURL? | select(.) | (.[]? // .)) |= sub("^https://"; "https://staging.")'