node 查询进程是否存在

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/**
 * 根据进程名称，查询 进程是否存在
 *
 * @param serverName
 */
const checkProcessIsExistByName = (serverName: string): Promise<boolean> => {
  return new Promise((res, rej) => {
    if (!isWin()) {
      rej("checkProcessIsExistByName 方法目前只能在 window 系统上使用");
    }
    exec(
      "tasklist /fo csv",
      {
        maxBuffer: 1024 * 1024 * 1024,
      },
      function (err, stdout) {
        if (err) {
          rej(`error occur, cause: ${err.message}`);
          return;
        }
        try {
          stdout.split("\n").forEach((line: string) => {
            if (line) {
              // let [name, pid] = line.trim().split(',');
              let [name] = line.trim().split(",");
              name = JSON.parse(name);
              // pid = JSON.parse(pid);
              // console.log({ name, pid });
              if (name === serverName) {
                res(true);
              }
            }
          });
          res(false);
        } catch (e) {
          rej(
            `checkProcessIsExistByName deal stdout error, cause: ${String(e)}`
          );
        }
      }
    );
  });
};

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var ps = require("ps-node");

// A simple pid lookup
ps.lookup({ pid: 12345 }, function (err, resultList) {
  if (err) {
    throw new Error(err);
  }

  var process = resultList[0];

  if (process) {
    console.log(
      "PID: %s, COMMAND: %s, ARGUMENTS: %s",
      process.pid,
      process.command,
      process.arguments
    );
  } else {
    console.log("No such process found!");
  }
});

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var ps = require("ps-node");

// A simple pid lookup
ps.lookup(
  {
    command: "node",
  },
  function (err, resultList) {
    if (err) {
      throw new Error(err);
    }

    resultList.forEach(function (process) {
      if (process) {
        console.log(
          "PID: %s, COMMAND: %s, ARGUMENTS: %s",
          process.pid,
          process.command,
          process.arguments
        );
      }
    });
  }
);