ruby - 哈希迭代不返回子目录内容

Question

我有一个方法可以查找给定父目录的子目录。我将父目录存储在哈希中，然后将哈希作为参数传入。我试图将子目录的内容收集到一个数组中，然后将其输出到报告中。

我遇到了一个问题，数组的内容只存储散列的最后一个值中的目录，我很快意识到内容在循环的每次迭代中都被覆盖了，所以我创建了一个新数组来存储每次迭代后的内容。

在我更改之前，我看到子目录正常输出。这是我的代码示例:

# stores subdirectory contents into an array
def store_directories(directories, folder_to_exclude)
  # changes working directory to the directory variable

  subdir_list = nil
  directories.each_value do |value|

    directory = "#{value}"

    puts Time.now.to_s + "  >  " +  "Updating search directory..."
    Dir.chdir(directory)

    # outputs only subdirectories with a creation date of older than 24 hours, except for folders names 'test'
    Dir.glob("*.*").map(&File.method(:realpath))
    puts Time.now.to_s + "  >  " +  "Gathering subdirectories..."

    subdir_list = Dir.glob("*").map(&File.method(:realpath)).reject{|files| (not File.directory?(files) && (File.mtime(files) < (Time.now - (60*1440))) && (not files == directory + folder_to_exclude)) }
    puts subdir_list

  end
 return subdir_list
end

输出看起来像这样:

/path/to/parent/subdirectory1
/path/to/parent/subdirectory2
/path/to/parent/subdirectory3
/path/to/parent/subdirectory4 ...

除了我只获取最后一个目录的内容外，这几乎按照我想要的方式工作。

这是我进行更改后的代码示例，以便数组的内容不会被覆盖:

# stores subdirectory contents into an array
def store_directories(directories, folder_to_exclude)
  # changes working directory to the directory variable

  subdir_list = directories.each_value do |value|

    directory = "#{value}"

    puts Time.now.to_s + "  >  " +  "Updating search directory..."
    Dir.chdir(directory)

    # outputs only subdirectories with a creation date of older than 24 hours, except for folders names 'test'
    Dir.glob("*.*").map(&File.method(:realpath))
    puts Time.now.to_s + "  >  " +  "Gathering subdirectories..."

    subdirectories = Dir.glob("*").map(&File.method(:realpath)).reject{|files| (not File.directory?(files) && (File.mtime(files) < (Time.now - (60*1440))) && (not files == directory + folder_to_exclude)) }
    puts subdirectories

  end
 return subdir_list
end

但这就是问题所在，现在我的输出看起来像这样......

directory1
/path/to/parent1/
directory2
/path/to/parent2/
directory3
/path/to/parent3/

突然间，我的代码不再寻找子目录的内容，而是只返回父目录...

Answer 1

试试这个:

# stores subdirectory contents into an array
def store_directories(directories, folder_to_exclude)
  # changes working directory to the directory variable

  subdir_list = nil
  directories.each_value do |value|

    directory = "#{value}"

    puts Time.now.to_s + "  >  " +  "Updating search directory..."
    Dir.chdir(directory)

    # outputs only subdirectories with a creation date of older than 24 hours, except for folders names 'test'
    Dir.glob("*.*").map(&File.method(:realpath))
    puts Time.now.to_s + "  >  " +  "Gathering subdirectories..."

    subdir_list << Dir.glob("*").map(&File.method(:realpath)).reject{|files| (not File.directory?(files) && (File.mtime(files) < (Time.now - (60*1440))) && (not files == directory + folder_to_exclude)) }
    puts subdir_list

  end
 return subdir_list
end

这基本上会保留您的旧代码，并在每次迭代时将新项目附加到 subdir_list，而不是覆盖。请注意，这里唯一真正的变化是 subdir_list =改为subdir_list <<