將JSON哈希中的數組元素替換爲來自其他文件的內容

我有一個配置，其內容要與來自單獨文件的片段交換。我將如何整齊地實現這一目標？將JSON哈希中的數組元素替換爲來自其他文件的內容

配置文件可能看起來像：

# config file 
{ 
    "keep": "whatever type of value", 
    "manipulate": [ 
     { 
      "foo": "bar", 
      "cat": { 
       "color": "grey" 
      }, 
      "type": "keep", 
      "detail": "keep whole array element" 
     }, 
     { 
      "stuff": "obsolete", 
      "more_stuff": "obsolete", 
      "type": "replace", 
      "detail": "replace whole array element with content from separate file" 
     }, 
     { 
      "foz": "baz", 
      "dog": { 
       "color": "brown" 
      }, 
      "type": "keep", 
      "detail": "keep whole array element" 
     }, 

    ], 
    "also_keep": "whatever type of value" 
}

含量（即將從單獨的文件）插入作爲替代過時數組元素的：

# replacement 
{ 
    "stuff": "i want that", 
    "fancy": "very", 
    "type": "new" 
}

期望的結果應該看起來像：

# result 
{ 
    "keep": "whatever kind of value", 
    "manipulate": [ 
     { 
      "foo": "bar", 
      "cat": { 
       "color": "grey" 
      }, 
      "type": "keep", 
      "detail": "keep whole array element" 
     }, 
     { 
      "stuff": "i want that", 
      "fancy": "very", 
      "type": "new" 
     }, 
     { 
      "foz": "baz", 
      "dog": { 
       "color": "brown" 
      }, 
      "type": "keep", 
      "detail": "keep whole array element" 
     }, 

    ], 
    "also_keep": "whatever kind of value", 
}

項

要求：

內容更換需要根據type鍵的值來完成。
最好使用jq和常用的bash/linux工具。
數組元素順序應該保持相同

來源

2017-09-14 ITL

你需要解釋這種更換是如何工作的，因爲這不是明顯對我來說，你是如何得到「結果」，從「配置文件」。這不是簡單的替換。 – Stalinko

@Stalinko你可能錯過了第二節_＃replacement_？而且，是的，問題是，如何通過使用片段_＃replacement_ – ITL

JQ解決方案：

jq --slurpfile repl repl.json '.manipulate=[.manipulate[] 
    | if .type=="replace" then .=$repl[0] else . end]' config.json

repl.json - JSON文件，其中包含更換JSON數據
--slurpfile repl repl.json - 讀取所有的JSON文本在指定的文件中並綁定解析的JSON v的數組alues給定的全局變量

輸出：

{ 
    "keep": "whatever type of value", 
    "manipulate": [ 
    { 
     "foo": "bar", 
     "cat": { 
     "color": "grey" 
     }, 
     "type": "keep", 
     "detail": "keep whole array element" 
    }, 
    { 
     "stuff": "i want that", 
     "fancy": "very", 
     "type": "new" 
    }, 
    { 
     "foz": "baz", 
     "dog": { 
     "color": "brown" 
     }, 
     "type": "keep", 
     "detail": "keep whole array element" 
    } 
    ], 
    "also_keep": "whatever type of value" 
}

來源

2017-09-14 11:04:31 RomanPerekhrest

Thx從原始輸入（_＃configfile_）獲取（_＃result_）Thx，您爲我創造了一天..完美地工作 – ITL

@ITL，不客氣 – RomanPerekhrest

jq --slurpfile repl repl.json '.manipulate |= 
    map(if .type=="replace" then $repl[0] else . end)' config.json

來源

2017-09-14 21:08:07 peak

將JSON哈希中的數組元素替換爲來自其他文件的內容

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