Class: Pedant::CheckFilesParseWithoutErrors

Inherits:
Check
  • Object
show all
Defined in:
lib/pedant/checks/files_parse_without_errors.rb

Instance Attribute Summary

Attributes inherited from Check

#result

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Check

all, depends, #fail, #fatal, friendly_name, inherited, #initialize, initialize!, list, #pass, provides, ready?, #report, #skip, #warn

Constructor Details

This class inherits a constructor from Pedant::Check

Class Method Details

.requires ⇒ Object 



29
30
31
 
# File 'lib/pedant/checks/files_parse_without_errors.rb', line 29

def self.requires
  super + [:file_mode, :base, :main]
end

Instance Method Details

#import(path) ⇒ Object 



38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
 
# File 'lib/pedant/checks/files_parse_without_errors.rb', line 38

def import(path)
  # All files should be relative to the main file's base in practice.
  path = @kb[:base] + path

  # Since there are potentially several ways to write the path leading to
  # a file, we'll use the basename as the key for hashes. This will
  # prevent parsing the same file multiple times.
  file = path.basename

  # Mark a placeholder key in the KB for this file. This will prevent us
  # from trying to parse a library more than once if there is a failure.
  @kb[:codes][file] = :pending
  @kb[:trees][file] = :pending

  begin
    contents = File.open(path, "rb").read
    @kb[:codes][file] = contents
    report(:info, "Read contents of #{path}.")
  rescue
    report(:error, "Failed to read contents #{path}.")
    return fatal
  end

  begin
    tree = Nasl::Parser.new.parse(contents, path)
    @kb[:trees][file] = tree
    report(:info, "Parsed contents of #{path}.")
  rescue
    # XXX-MAK: Incorporate the error from the parser, as it gives full,
    # coloured context.
    report(:error, "Failed to parse #{path}.")
    return fatal
  end
end

#provides ⇒ Object 



33
34
35
 
# File 'lib/pedant/checks/files_parse_without_errors.rb', line 33

def provides
  super + [:codes, :trees]
end

#run ⇒ Object 



37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
 
# File 'lib/pedant/checks/files_parse_without_errors.rb', line 37

def run
  def import(path)
    # All files should be relative to the main file's base in practice.
    path = @kb[:base] + path

    # Since there are potentially several ways to write the path leading to
    # a file, we'll use the basename as the key for hashes. This will
    # prevent parsing the same file multiple times.
    file = path.basename

    # Mark a placeholder key in the KB for this file. This will prevent us
    # from trying to parse a library more than once if there is a failure.
    @kb[:codes][file] = :pending
    @kb[:trees][file] = :pending

    begin
      contents = File.open(path, "rb").read
      @kb[:codes][file] = contents
      report(:info, "Read contents of #{path}.")
    rescue
      report(:error, "Failed to read contents #{path}.")
      return fatal
    end

    begin
      tree = Nasl::Parser.new.parse(contents, path)
      @kb[:trees][file] = tree
      report(:info, "Parsed contents of #{path}.")
    rescue
      # XXX-MAK: Incorporate the error from the parser, as it gives full,
      # coloured context.
      report(:error, "Failed to parse #{path}.")
      return fatal
    end
  end

  # This check will pass by default.
  pass

  # Initialize the keys written by this check.
  @kb[:codes] = {}
  @kb[:trees] = {}

  # Load up the main file.
  import(@kb[:main])

  return

  while true
    # Get the list of all Includes, and prune any that have already had the
    # files they reference parsed.
    libs = Nasl::Include.all.map do |inc|
      (@kb[:base] + inc.filename.text).basename
    end

    libs.delete_if { |lib| lib == @kb[:main] || @kb[:trees].has_key?(lib) }

    break if libs.empty?

    # Try and parse each library, continuing on failures.
    libs.each { |lib| import(lib) }
  end
end