重装系统后AppleScript调用jq失败：sh:jq: command not found求助

我在Devonthink3中用脚本创建每日日志，创建笔记时会自动添加当日天气及预报。脚本正常运行了约90天，重装操作系统后执行脚本时抛出错误：Failed to parse weather data: sh:jq: command not found。我已经安装了JSON Helper和jq，但问题依然存在，以下是脚本中获取天气的核心代码：

-- Fetch and format weather data
on getWeather()
    set weatherAPIURL to "http://api.weatherapi.com/v1/forecast.json?key=86a511ece53749c88e9205427250301&q=Detroit&days=1&aqi=no&alerts=no"
    try
        set weatherData to do shell script "curl -s " & quoted form of weatherAPIURL
    on error errMsg
        display dialog "Failed to fetch weather data: " & errMsg
        return ""
    end try
    
    try
        set currentTempFt to do shell script "echo " & quoted form of weatherData & " | jq -r '.current.temp_f'"
        set currentCondition to do shell script "echo " & quoted form of weatherData & " | jq -r '.current.condition.text'"
        set currentWindMph to do shell script "echo " & quoted form of weatherData & " | jq -r '.current.wind_mph'"
        set currentWindDir to do shell script "echo " & quoted form of weatherData & " | jq -r '.current.wind_dir'"
        set currentHumidity to do shell script "echo " & quoted form of weatherData & " | jq -r '.current.humidity'"
        set feelslikeF to do shell script "echo " & quoted form of weatherData & " | jq -r '.current.feelslike_f'"
        set forecastCondition to do shell script "echo " & quoted form of weatherData & " | jq -r '.forecast.forecastday[0].day.condition.text'"
        set forecastMaxTempF to do shell script "echo " & quoted form of weatherData & " | jq -r '.forecast.forecastday[0].day.maxtemp_f'"
        set forecastMinTempF to do shell script "echo " & quoted form of weatherData & " | jq -r '.forecast.forecastday[0].day.mintemp_f'"
        set forecastAvgHumidity to do shell script "echo " & quoted form of weatherData & " | jq -r '.forecast.forecastday[0].day.avghumidity'"
        set forecastUV to do shell script "echo " & quoted form of weatherData & " | jq -r '.forecast.forecastday[0].day.uv'"
        set astroSunrise to do shell script "echo " & quoted form of weatherData & " | jq -r '.forecast.forecastday[0].astro.sunrise'"
        set astroSunsetAt to do shell script "echo " & quoted form of weatherData & " | jq -r '.forecast.forecastday[0].astro.sunset'"
        
        set formattedDate to short date string of (current date)
        set formattedTime to time string of (current date)
        
        set output to formattedDate & " " & formattedTime & return & ¬
            "Currently, it's " & currentTempFt & "º, and " & currentCondition & " outside, the wind is " & currentWindMph & " mph from the " & currentWindDir & " and the Humidity is " & currentHumidity & ". " & ¬
            "Currently, it feels like " & feelslikeF & "º. Today's forecast calls for " & forecastCondition & ", with a high of " & forecastMaxTempF & " ºF and a low of " & forecastMinTempF & " º, today's humidity will be " & forecastAvgHumidity & "%, with a UV index of " & forecastUV & ". " & ¬
            "Sunrise is at " & astroSunrise & " this morning, and Sunset will be at " & astroSunsetAt & " this evening."
        
        return output
    on error errMsg
        display dialog "Failed to parse weather data: " & errMsg
        return ""
    end try
end getWeather

解决方法 #

• 指定jq的绝对路径
  重装系统后，AppleScript的do shell script默认PATH可能不包含jq的安装目录。打开终端执行which jq，得到jq的绝对路径（比如/usr/local/bin/jq或/opt/homebrew/bin/jq），然后把脚本中所有jq替换成这个绝对路径。例如：

  set currentTempFt to do shell script "echo " & quoted form of weatherData & " | /usr/local/bin/jq -r '.current.temp_f'"
  

• 显式设置PATH环境变量
  在脚本的do shell script命令中添加PATH设置，确保shell能找到jq。可以在调用curl的代码前统一设置：

  set weatherData to do shell script "export PATH=\"/usr/local/bin:/opt/homebrew/bin:$PATH\"; curl -s " & quoted form of weatherAPIURL
  

  这样后续所有shell命令都会使用这个包含jq路径的PATH。

• 验证jq安装有效性
  打开终端执行jq --version，如果能正常输出版本信息说明安装没问题；若报错，重新用Homebrew安装：brew install jq，确保安装过程无异常。

内容的提问来源于stack exchange，提问作者Stephen Ogletree