I'm doing a simple script to check crc of all files...
require "zlib"
exit if Object.const_defined?(:Ocra)
files = Dir.glob("*")
File.open('dir.txt', 'a+') do |file|
file.puts files
end
File.read('dir.txt').each_line { |line|
file = File.read(line) ; nil
file_crc = Zlib.crc32(file,0).to_s(16)
puts line, file_crc
}
The problem is at the line File.read('dir.txt').each_line { |line|
I get this error:
test.rb:13:in `read': Invalid argument - 1.exe (Errno::EINVAL)
from C:/Users/Administrador/Desktop/1.rb:13:in `block in <main>'
from C:/Users/Administrador/Desktop/1.rb:12:in `each_line'
from C:/Users/Administrador/Desktop/1.rb:12:in `<main>'
PD: 1.exe is a file listed in the "dir.txt".
Have you checked that the line doesn't contain extra characters? p line.
IIRC line will contain the newline character, use line.chomp.
Related
In child folder(chapter_number), i am creating file
#!/usr/bin/env ruby
require 'roo'
Dir.glob("**/*.xlsx") do |file|
xlsx = Roo::Spreadsheet.open(file)
bookname = xlsx.column(1)
cahpter_number_array = xlsx.column(2).uniq
cahpter_number_array.each do |chapter|
book_name = bookname[1] if bookname
chapter_number = chapter if (cahpter_number_array && (chapter != "Chapter"))
Dir.mkdir(book_name) unless File.exists?(book_name)
Dir.mkdir("#{book_name}/#{chapter_number}") unless File.exists?("#{book_name}/#{chapter_number}")
xlsx.column(3).each do |md|
output_name = "#{book_name}/#{chapter_number}/#{File.basename(md.partition('-').first, '.*')}.md" if (md != "Verse")
output = File.open("#{output_name}", 'w')
output << "hello"
end
end
end
Error:
`initialize': Is a directory # rb_sysopen - . (Errno::EISDIR)
Below link is my source file:
source file link
Come on now, that isn't really your code. You can't call partition on a number:
file_name = [1,2,3,4,5,6,7]
file_name.each do |md|
... md.partition('-')
so you would have gotten an error for that before getting the error you posted.
In any case, the error message is saying that outputname is set equal to "." and when ruby tries to execute File.open(".", 'w') ruby finds that "." is the name of a directory on your system, and you can't write a directory. You can witness the same error doing this:
~/ruby_programs$ mkdir my_dir
~/ruby_programs$ irb
2.3.0 :001 > File.open('my_dir', 'w')
Errno::EISDIR: Is a directory # rb_sysopen - my_dir
from (irb):1:in `initialize'
from (irb):1:in `open'
from (irb):1
from /Users/7stud/.rvm/rubies/ruby-2.3.0/bin/irb:11:in `<main>'
I forked this gist from https://gist.github.com/mattdipasquale/571405
I am getting the following error:
deDUPER.rb:14:in `read': Invalid argument - /Volumes/Drobo #1 2009-2012/AMNH Video/2012/2012-01-17 Creatures of Light/Capture Scratch/Art 3:9/Capture Scratch/2012-03-09_microraptor livestream/A Cam_Microraptor livestream.mov (Errno::EINVAL)
from deDUPER.rb:14:in `block in <main>'
from deDUPER.rb:10:in `each'
from deDUPER.rb:10:in `<main>'
I think it is caused from illegal characters in the file or folder names, but i'm not sure. I don't want to change the file or folder names because they are linked to old Final Cut Pro project files that rely on referenced filepaths to keep the project intact. Does anyone have experience with this? Is there a way I can get this script to work without having to change the file or folder names?
# Define the unique method that removes duplicates
#!/usr/bin/ruby
require 'digest/md5'
library_path = ARGV[0]
hash = {}
Dir.glob(library_path + "/**/*", File::FNM_DOTMATCH).each do |filename|
next if File.directory?(filename)
puts 'Checking ' + filename
key = Digest::MD5.hexdigest(IO.read(filename)).to_sym
if hash.has_key? key
# puts "same file #{filename}"
hash[key].push filename
else
hash[key] = [filename]
end
end
hash.each_value do |filename_array|
if filename_array.length > 1
puts "=== Identical Files ===\n"
filename_array.each { |filename| puts ' '+filename }
end
end
I wanted to write a ruby program to unpackage tar.gz files, and I ran into some issues. After reading the documentation on the ruby-doc site, Zlib::GzipReader and Zlib::Inflate. Then I found this Module someone wrote on GitHub, and that didn't work either. So, using the examples from the Ruby page for Zlib::GzipReader, I these were able to run successfully.
irb(main):027:0* File.open('zlib_inflate.tar.gz') do |f|
irb(main):028:1* gz = Zlib::GzipReader.new(f)
irb(main):029:1> print gz.read
irb(main):030:1> gz.close
irb(main):031:1> end
#
#
#
irb(main):023:0* Zlib::GzipReader.open('zlib_inflate.tar.gz') { |gz|
irb(main):024:1* print gz.read
irb(main):025:1> }
Then, when trying to use the Zlib::Inflate options, I kept running into incorrect header check errors.
irb(main):047:0* zstream = Zlib::Inflate.new
=> #<Zlib::Inflate:0x00000002b15790 #dictionaries={}>
irb(main):048:0> buf = zstream.inflate('zlib_inflate.tar.gz')
Zlib::DataError: incorrect header check
from (irb):48:in `inflate'
from (irb):48
from C:/ruby/Ruby200p353/Ruby200-x64/bin/irb:12:in `<main>'
#
#
#
irb(main):049:0> cf = File.open("zlib_inflate.tar.gz")
=> #<File:zlib_inflate.tar.gz>
irb(main):050:0> ucf = File.open("ruby_inflate.rb", "w+")
=> #<File:ruby_inflate.rb>
irb(main):051:0> zi = Zlib::Inflate.new(Zlib::MAX_WBITS)
=> #<Zlib::Inflate:0x00000002c097f0 #dictionaries={}>
irb(main):052:0> ucf << zi.inflate(cf.read)
Zlib::DataError: incorrect header check
from (irb):52:in `inflate'
from (irb):52
from C:/ruby/Ruby200p353/Ruby200-x64/bin/irb:12:in `<main>'
#
#
#
irb(main):057:0* File.open("zlib_inflate.tar.gz") {|cf|
irb(main):058:1* zi = Zlib::Inflate.new
irb(main):059:1> File.open("zlib_inflate.rb", "w+") {|ucf|
irb(main):060:2* ucf << zi.inflate(cf.read)
irb(main):061:2> }
irb(main):062:1> zi.close
irb(main):063:1> }
Zlib::DataError: incorrect header check
from (irb):60:in `inflate'
from (irb):60:in `block (2 levels) in irb_binding'
from (irb):59:in `open'
from (irb):59:in `block in irb_binding'
from (irb):57:in `open'
from (irb):57
from C:/ruby/Ruby200p353/Ruby200-x64/bin/irb:12:in `<main>'
How would I go about taking a tar.gz file, and extract the contents so the files are not null? I did read this other post about Ruby Zlib from here, but that did not work for me as well. What am I doing wrong?
I have wrote some csv file and compress it, using this code:
arr = (0...2**16).to_a
File.open('file.bz2', 'wb') do |f|
writer = Bzip2::Writer.new f
CSV(writer) do |csv|
(2**16).times { csv << arr }
end
writer.close
end
I want to read this csv bzip2ed file (csv files compressed with bzip2). These files uncompressed look like:
1,2
4,12
5,2
8,7
1,3
...
So I tried this code:
Bzip2::Reader.open(filename) do |bzip2|
CSV.foreach(bzip2) do |row|
puts row.inspect
end
end
but when it is executed, it throws:
/Users/foo/.rvm/rubies/ruby-2.1.0/lib/ruby/2.1.0/csv.rb:1256:in `initialize': no implicit conversion of Bzip2::Reader into String (TypeError)
from /Users/foo/.rvm/rubies/ruby-2.1.0/lib/ruby/2.1.0/csv.rb:1256:in `open'
from /Users/foo/.rvm/rubies/ruby-2.1.0/lib/ruby/2.1.0/csv.rb:1256:in `open'
from /Users/foo/.rvm/rubies/ruby-2.1.0/lib/ruby/2.1.0/csv.rb:1121:in `foreach'
from worm_pathfinder_solver.rb:79:in `block in <main>'
from worm_pathfinder_solver.rb:77:in `open'
from worm_pathfinder_solver.rb:77:in `<main>'
Question:
What is wrong?
How should I do?
CSV.foreach assumes you're passing a file path to open. If you want to pass a stream to CSV you need to be more explicit and use CSV.new. This code will process a gzipped file:
Zlib::GzipReader.open(filename) do |gzip|
csv = CSV.new(gzip)
csv.each do |row|
puts row.inspect
end
end
Based on the brief docs you'll probably need send the read method on bzip2 object (not tested):
Bzip2::Reader.open(filename) do |bzip2|
CSV.foreach(bzip2.read) do |row|
# ^^^^
puts row.inspect
end
end
My guess would be that CSV tries to convert the Bzip2::Reader to a string but doesn't know how and simply throws the exception. You can manually read the data into a string and then pass THAT to CSV.
Though it's strange since it could handle Bzip2::Writer just fine.
I am trying to retrieve files (.csv) from an ftp site and save them all locally in the same folder. My code looks like this:
#! /usr/bin/ruby
require 'logger'
require 'fileutils'
require 'net/ftp'
require 'rubygems'
require 'mysql2'
require 'roo'
require 'date'
# logging setup
log = Logger.new("/path_to_logs/ftp_log.log", 10, 1024000)
log.level = Logger::INFO
export_ftp_path = '/Receive/results/'
export_work_path ='/Users/pierce/results_exports/'
Net::FTP.open('host', 'username', 'password') do |ftp|
log.info("Logged into FTP")
ftp.passive = true
ftp.chdir("#{export_ftp_path}")
ftp.list.each do |file|
log.info("Found file #{file}")
new_file = file[56..115] #take part of the file name and remove spaces and periods
new_file = new_file.gsub(/[.]+/, "")
new_file = new_file.gsub(/\s/, "0")
ftp.gettextfile(file,"#{new_file}")
log.info("Downloaded file #{new_file}")
end
end
And here is the error I receive:
/Users/pierce/.rbenv/versions/1.9.2-p290/lib/ruby/1.9.1/net/ftp.rb:560:in `initialize': No such file or directory - (Errno::ENOENT)
from /Users/pierce/.rbenv/versions/1.9.2-p290/lib/ruby/1.9.1/net/ftp.rb:560:in `open'
from /Users/pierce/.rbenv/versions/1.9.2-p290/lib/ruby/1.9.1/net/ftp.rb:560:in `gettextfile'
from ftp_test.rb:44:in `block (2 levels) in <main>'
from ftp_test.rb:33:in `each'
from ftp_test.rb:33:in `block in <main>'
from /Users/pierce/.rbenv/versions/1.9.2-p290/lib/ruby/1.9.1/net/ftp.rb:116:in `open'
As suggested, here are the values I have for puts file and puts new_file.
file = -rwxr-xr-x 1 1130419 114727 9546 May 17 08:11 results_Wed. 16 May 2012.csv
new_file = results_Wed0230May02012csv
Any suggestions on what to change in gettextfile or within my script to get the files saved correctly?
You should use nlst instead of list when you just need a list of files in a directory. The output of list needs to be properly parsed otherwise.
When you request the file it has to be the original filename, including all spaces. When you save the file it can be anything you want (including spaces or not). The error was because you were requesting the wrong file. Use nlst in your case instead. It will make it much easier (no conversion or parsing needed).