GraphicsMagick 未被调用

Question

我正在尝试为上传到我的 Amazon S3 商店的图像创建缩略图。图片上传本身工作正常，但由于某种原因，从未进行 gm(readStream, fileObj.name()).resize('50','50').stream().pipe(writeStream) 调用因为 gm.isAvailable returns 未定义。但是，当我直接从流星 shell 环境调用它时，我得到 "true"。我做错了什么？

if (Meteor.isServer) {
  var imageStore = new FS.Store.S3("images", {
    region: "eu-west-1",
    accessKeyId: (Meteor.isServer && !process.env.AWS_ACCESS_KEY_ID ? Meteor.settings.AWSAccessKeyId : null),
    secretAccessKey: (Meteor.isServer && !process.env.AWS_SECRET_ACCESS_KEY ? Meteor.settings.AWSSecretAccessKey : null),
    bucket: Meteor.isServer && process.env.AWS_S3_BUCKET || Meteor.settings.AWSBucket,
    folder: "images"
  });

  var thumbStore = new FS.Store.S3("thumbnails", {
    region: "eu-west-1",
    accessKeyId: (Meteor.isServer && !process.env.AWS_ACCESS_KEY_ID ? Meteor.settings.AWSAccessKeyId : null),
    secretAccessKey: (Meteor.isServer && !process.env.AWS_SECRET_ACCESS_KEY ? Meteor.settings.AWSSecretAccessKey : null),
    bucket: Meteor.isServer && process.env.AWS_S3_BUCKET || Meteor.settings.AWSBucket,
    folder: "thumbnails",
    transformWrite: function(fileObj, readStream, writeStream) {
      // transform image into 50 x 50 thumbnail
      console.log("thumbnail transform");
      console.log(gm.IsAvailable);
      if (gm.IsAvailable) {
        return gm(readStream, fileObj.name()).resize('50','50').stream().pipe(writeStream);
      } else {
        console.log("That didn't work");
      }
    }
  });

  Images = new FS.Collection("Images", {
    stores: [
      thumbStore,
      imageStore
    ],
    filter: {
      allow: {
        contentTypes: ['image/*']
      }
    }
  });
}
// end server

if (Meteor.isClient) {
  var imageStore = new FS.Store.S3("images");
  var thumbStore = new FS.Store.S3("thumbnails");

  Images = new FS.Collection("Images", {
    stores: [
      thumbStore,
      imageStore
    ],
    filter: {
      allow: {
        contentTypes: ['image/*']
      }
    }
  });
}
// end client

当我启动我的应用程序或上传图片时，我得到 "thumbnail transform"、"undefined" 和 "That didn't work"...

我运行在 Win 10 上，安装了 GraphicsMagick 1.3.21，我正在使用 cfs:graphicsmagick 软件包。

有没有人有什么想法？

Answer 1

尝试 gm.isAvailable 小写 i。

GraphicsMagick 未被调用

GraphicsMagick not getting called

meteor

graphicsmagick