diff options
Diffstat (limited to 'lib/puppet/parser/functions')
| -rw-r--r-- | lib/puppet/parser/functions/validate_absolute_path.rb | 56 | ||||
| -rw-r--r-- | lib/puppet/parser/functions/validate_re.rb | 19 |
2 files changed, 69 insertions, 6 deletions
diff --git a/lib/puppet/parser/functions/validate_absolute_path.rb b/lib/puppet/parser/functions/validate_absolute_path.rb new file mode 100644 index 0000000..fe27974 --- /dev/null +++ b/lib/puppet/parser/functions/validate_absolute_path.rb @@ -0,0 +1,56 @@ +module Puppet::Parser::Functions + newfunction(:validate_absolute_path, :doc => <<-'ENDHEREDOC') do |args| + Validate the string represents an absolute path in the filesystem. This function works + for windows and unix style paths. + + The following values will pass: + + $my_path = "C:/Program Files (x86)/Puppet Labs/Puppet" + validate_absolute_path($my_path) + $my_path2 = "/var/lib/puppet" + validate_absolute_path($my_path2) + + + The following values will fail, causing compilation to abort: + + validate_absolute_path(true) + validate_absolute_path([ 'var/lib/puppet', '/var/foo' ]) + validate_absolute_path([ '/var/lib/puppet', 'var/foo' ]) + $undefined = undef + validate_absolute_path($undefined) + + ENDHEREDOC + + require 'puppet/util' + + unless args.length > 0 then + raise Puppet::ParseError, ("validate_absolute_path(): wrong number of arguments (#{args.length}; must be > 0)") + end + + args.each do |arg| + # This logic was borrowed from + # [lib/puppet/file_serving/base.rb](https://github.com/puppetlabs/puppet/blob/master/lib/puppet/file_serving/base.rb) + + # Puppet 2.7 and beyond will have Puppet::Util.absolute_path? Fall back to a back-ported implementation otherwise. + if Puppet::Util.respond_to?(:absolute_path?) then + unless Puppet::Util.absolute_path?(arg, :posix) or Puppet::Util.absolute_path?(arg, :windows) + raise Puppet::ParseError, ("#{arg.inspect} is not an absolute path.") + end + else + # This code back-ported from 2.7.x's lib/puppet/util.rb Puppet::Util.absolute_path? + # Determine in a platform-specific way whether a path is absolute. This + # defaults to the local platform if none is specified. + # Escape once for the string literal, and once for the regex. + slash = '[\\\\/]' + name = '[^\\\\/]+' + regexes = { + :windows => %r!^(([A-Z]:#{slash})|(#{slash}#{slash}#{name}#{slash}#{name})|(#{slash}#{slash}\?#{slash}#{name}))!i, + :posix => %r!^/!, + } + + rval = (!!(arg =~ regexes[:posix])) || (!!(arg =~ regexes[:windows])) + rval or raise Puppet::ParseError, ("#{arg.inspect} is not an absolute path.") + end + end + end +end diff --git a/lib/puppet/parser/functions/validate_re.rb b/lib/puppet/parser/functions/validate_re.rb index 8033ca3..ca25a70 100644 --- a/lib/puppet/parser/functions/validate_re.rb +++ b/lib/puppet/parser/functions/validate_re.rb @@ -1,5 +1,4 @@ module Puppet::Parser::Functions - newfunction(:validate_re, :doc => <<-'ENDHEREDOC') do |args| Perform simple validation of a string against one or more regular expressions. The first argument of this function should be a string to @@ -8,6 +7,9 @@ module Puppet::Parser::Functions of the regular expressions match the string passed in, compilation will abort with a parse error. + If a third argument is specified, this will be the error message raised and + seen by the user. + The following strings will validate against the regular expressions: validate_re('one', '^one$') @@ -17,17 +19,22 @@ module Puppet::Parser::Functions validate_re('one', [ '^two', '^three' ]) + A helpful error message can be returned like this: + + validate_re($::puppetversion, '^2.7', 'The $puppetversion fact value does not match 2.7') + ENDHEREDOC - if args.length != 2 then - raise Puppet::ParseError, ("validate_re(): wrong number of arguments (#{args.length}; must be 2)") + if (args.length < 2) or (args.length > 3) then + raise Puppet::ParseError, ("validate_re(): wrong number of arguments (#{args.length}; must be 2 or 3)") end - msg = "validate_re(): #{args[0].inspect} does not match #{args[1].inspect}" + msg = args[2] || "validate_re(): #{args[0].inspect} does not match #{args[1].inspect}" - raise Puppet::ParseError, (msg) unless args[1].any? do |re_str| + # We're using a flattened array here because we can't call String#any? in + # Ruby 1.9 like we can in Ruby 1.8 + raise Puppet::ParseError, (msg) unless [args[1]].flatten.any? do |re_str| args[0] =~ Regexp.compile(re_str) end end - end |