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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,61 @@ | ||
| require "open-uri" | ||
|
|
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| module WikipediaSearch | ||
| class Downloader | ||
| class << self | ||
| def download(url, output_path) | ||
| new(url, output_path).download | ||
| end | ||
| end | ||
|
|
||
| def initialize(url, output_path) | ||
| @url = url | ||
| @output_path = output_path | ||
| end | ||
|
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| def download | ||
| base_name = File.basename(@url) | ||
| max = nil | ||
| content_length_proc = lambda do |content_length| | ||
| max = content_length | ||
| end | ||
| progress_proc = lambda do |current| | ||
| if max | ||
| percent = (current / max.to_f) * 100 | ||
| formatted_size = "[%s/%s]" % [format_size(current), format_size(max)] | ||
| print("\r%s - %06.2f%% %s" % [base_name, percent, formatted_size]) | ||
| puts if current == max | ||
| end | ||
| end | ||
| options = { | ||
| :content_length_proc => content_length_proc, | ||
| :progress_proc => progress_proc, | ||
| } | ||
|
|
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| open(@url, options) do |input| | ||
| @output_path.open("wb") do |output| | ||
| chunk = "" | ||
| chunk_size = 8192 | ||
| while input.read(chunk_size, chunk) | ||
| output.print(chunk) | ||
| end | ||
| end | ||
| end | ||
| end | ||
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| private | ||
| def format_size(size) | ||
| if size < 1024 | ||
| "%d" % size | ||
| elsif size < (1024 ** 2) | ||
| "%7.2fKiB" % (size.to_f / 1024) | ||
| elsif size < (1024 ** 3) | ||
| "%7.2fMiB" % (size.to_f / (1024 ** 2)) | ||
| elsif size < (1024 ** 4) | ||
| "%7.2fGiB" % (size.to_f / (1024 ** 3)) | ||
| else | ||
| "%.2fTiB" % (size.to_f / (1024 ** 4)) | ||
| end | ||
| end | ||
| end | ||
| end |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,18 @@ | ||
| require "wikipedia-search/downloader" | ||
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| namespace :data do | ||
| data_dir_path = Pathname.new("data") | ||
| directory data_dir_path.to_s | ||
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| namespace :download do | ||
| base_name = "jawiki-latest-pages-articles.xml.bz2" | ||
| ja_data_path = data_dir_path + base_name | ||
| file ja_data_path.to_s => data_dir_path.to_s do | ||
| url = "http://dumps.wikimedia.org/jawiki/latest/#{base_name}" | ||
| WikipediaSearch::Downloader.download(url, ja_data_path) | ||
| end | ||
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| desc "Download the latest Japanese Wikipedia data." | ||
| task :ja => ja_data_path.to_s | ||
| end | ||
| end |