JQ轉換文本字符串，並將其添加到現有的JSON對象

Question

如何轉換文本字符串，並將其添加到現有的JSON對象

當前JSON輸出：

{ 
    "start process": "Wed May 24 05:22:35 UTC 2017", 
    "logfilename": "log_test" 
} 
{ 
    "start filelist": [ 
    "/downloads/json_log_array2object.jq", 
    "/downloads/json_log_string2object.jq", 
    "/downloads/log_test.json", 
    "/downloads/log_test.txt", 
    "/downloads/test_logs.sh" 
    ] 
} 

目標JSON輸出：

{ 
    "start process": "Wed May 24 05:22:35 UTC 2017", 
    "logfilename": "log_test", 
    "start filelist": [ 
    "/downloads/json_log_array2object.jq", 
    "/downloads/json_log_string2object.jq", 
    "/downloads/log_test.json", 
    "/downloads/log_test.txt", 
    "/downloads/test_logs.sh" 
    ] 
} 

bash腳本：

logfilename="log_test" 

writelogstring2object() { 
    exec 4>>"${1}.json" 
    flock -x 4 
    tee -a "$1.txt" | jq -sRf json_log_string2object.jq >&4 
} 

writelogarray2object() { 
    exec 4>>"${1}.json" 
    flock -x 4 
    tee -a "$1.txt" | jq -nRf json_log_array2object.jq >&4 
} 

exec 3> >(writelogstring2object "$logfilename") 
{ 
echo "start process: $(date -u)" 
echo "logfilename:" $logfilename 
} >&3 
exec 3>&- 
flock -s "$logfilename.json" -c : 

exec 3> >(writelogarray2object "$logfilename") 
{ 
echo "start filelist:" 
printf '%s\n' "$PWD"/* 
} >&3 
exec 3>&- 
flock -s "$logfilename.json" -c : 

JQ方案：

json_log_string2object.jq

def trim: sub("^ +";"") | sub(" +$";""); 

def s2o: 
    (index(":") // empty) as $ix 
    | {(.[:$ix]): (.[$ix+1:]|trim)}; 

split("\n") | map(s2o) | add 

json_log_array2object.jq

foreach (inputs,null) as $line ({}; 
    if $line == null then .emit = {(.key|tostring): .value} 
    elif $line[-1:] == ":" 
    then (if .key then {emit: {(.key): .value}} else null end) 
     + { key : $line[0:-1] } 
    else {key, value: (.value + [$line])} 
    end; 
    .emit // empty) 

欣賞方法和實例

Answer 1

1. 要添加兩個JSON對象，$一個$二，你可以寫$one + $two。

2. 在問題描述開始處給出的兩個對象作爲JSON並不完全有效。假設文件input.json包含正確的文本，調用：

   jq -s'。[0] +。[1]'input.json

產生期望的答案。