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-rw-r--r--README.markdown4
-rw-r--r--lib/puppet/parser/functions/is_absolute_path.rb50
-rw-r--r--spec/unit/puppet/parser/functions/is_absolute_path_spec.rb86
3 files changed, 140 insertions, 0 deletions
diff --git a/README.markdown b/README.markdown
index 221de6e..a6ed1fb 100644
--- a/README.markdown
+++ b/README.markdown
@@ -474,6 +474,10 @@ Boolean check to determine whether a variable is of a given data type. This is e
See the [the Puppet type system](https://docs.puppetlabs.com/references/latest/type.html#about-resource-types) for more information about types.
See the [`assert_type()`](https://docs.puppetlabs.com/references/latest/function.html#asserttype) function for flexible ways to assert the type of a value.
+#### `is_absolute_path`
+
+Returns 'true' if the given path is absolute. *Type*: rvalue.
+
#### `is_array`
Returns 'true' if the variable passed to this function is an array. *Type*: rvalue.
diff --git a/lib/puppet/parser/functions/is_absolute_path.rb b/lib/puppet/parser/functions/is_absolute_path.rb
new file mode 100644
index 0000000..53a5445
--- /dev/null
+++ b/lib/puppet/parser/functions/is_absolute_path.rb
@@ -0,0 +1,50 @@
+module Puppet::Parser::Functions
+ newfunction(:is_absolute_path, :type => :rvalue, :arity => 1, :doc => <<-'ENDHEREDOC') do |args|
+ Returns boolean true if the string represents an absolute path in the filesystem. This function works
+ for windows and unix style paths.
+
+ The following values will return true:
+
+ $my_path = 'C:/Program Files (x86)/Puppet Labs/Puppet'
+ is_absolute_path($my_path)
+ $my_path2 = '/var/lib/puppet'
+ is_absolute_path($my_path2)
+ $my_path3 = ['C:/Program Files (x86)/Puppet Labs/Puppet']
+ is_absolute_path($my_path3)
+ $my_path4 = ['/var/lib/puppet']
+ is_absolute_path($my_path4)
+
+ The following values will return false:
+
+ is_absolute_path(true)
+ is_absolute_path('../var/lib/puppet')
+ is_absolute_path('var/lib/puppet')
+ $undefined = undef
+ is_absolute_path($undefined)
+
+ ENDHEREDOC
+
+ require 'puppet/util'
+
+ path = args[0]
+ # 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
+ value = (Puppet::Util.absolute_path?(path, :posix) or Puppet::Util.absolute_path?(path, :windows))
+ 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!^/!
+ }
+ value = (!!(path =~ regexes[:posix])) || (!!(path =~ regexes[:windows]))
+ end
+ value
+ end
+end \ No newline at end of file
diff --git a/spec/unit/puppet/parser/functions/is_absolute_path_spec.rb b/spec/unit/puppet/parser/functions/is_absolute_path_spec.rb
new file mode 100644
index 0000000..8931208
--- /dev/null
+++ b/spec/unit/puppet/parser/functions/is_absolute_path_spec.rb
@@ -0,0 +1,86 @@
+require 'spec_helper'
+
+describe :is_absolute_path do
+ let(:scope) { PuppetlabsSpec::PuppetInternals.scope }
+
+ let(:function_args) do
+ []
+ end
+
+ let(:function) do
+ scope.function_is_absolute_path(function_args)
+ end
+
+
+ describe 'validate arity' do
+ let(:function_args) do
+ [1,2]
+ end
+ it "should raise a ParseError if there is more than 1 arguments" do
+ lambda { function }.should( raise_error(ArgumentError))
+ end
+
+ end
+
+ it "should exist" do
+ Puppet::Parser::Functions.function(subject).should == "function_#{subject}"
+ end
+
+ # help enforce good function defination
+ it 'should contain arity' do
+
+ end
+
+ it "should raise a ParseError if there is less than 1 arguments" do
+ lambda { function }.should( raise_error(ArgumentError))
+ end
+
+
+ describe 'should retrun true' do
+ let(:return_value) do
+ true
+ end
+
+ describe 'windows' do
+ let(:function_args) do
+ ['c:\temp\test.txt']
+ end
+ it 'should return data' do
+ function.should eq(return_value)
+ end
+ end
+
+ describe 'non-windows' do
+ let(:function_args) do
+ ['/temp/test.txt']
+ end
+
+ it 'should return data' do
+ function.should eq(return_value)
+ end
+ end
+ end
+
+ describe 'should return false' do
+ let(:return_value) do
+ false
+ end
+ describe 'windows' do
+ let(:function_args) do
+ ['..\temp\test.txt']
+ end
+ it 'should return data' do
+ function.should eq(return_value)
+ end
+ end
+
+ describe 'non-windows' do
+ let(:function_args) do
+ ['../var/lib/puppet']
+ end
+ it 'should return data' do
+ function.should eq(return_value)
+ end
+ end
+ end
+end \ No newline at end of file