<grep> Task

<grep>

Searches files for a regular-expression and produces an XML report of the matches.

Parameters

Attribute	Type	Description	Required
output	file	Specifies the name of the output file.	True
pattern	string	Specifies the regular-expression to search for.	True
failonerror	bool	Determines if task failure stops the build, or is just reported. The default is true.	False
if	bool	If true then the task will be executed; otherwise, skipped. The default is true.	False
unless	bool	Opposite of `if`. If false then the task will be executed; otherwise, skipped. The default is false.	False
verbose	bool	Determines whether the task should report detailed build log messages. The default is false.	False

Nested Elements:

The set of files in which the expression is searched.

Examples

Extract all TODO:, UNDONE: or HACK:- comment-tags from C# source files and write them to a file out.xml. (A xslt-stylesheet could then transform it to a nice html-page for your project-homepage, but that is beyond the scope of this example.)

Path, File and LineNumber are automatically generated elements.

            <grep output="out.xml" pattern="// (?'Type'TODO|UNDONE|HACK): (\[(?'Author'\w*),(?'Date'.*)\])? (?'Text'[^\n\r]*)">
                <fileset>
                    <include name="*.cs" />
                </fileset>
            </grep>

The resulting XML file for a comment-tag 'TODO: [md, 14-02-2004] comment this method' will look like

            <?xml version="1.0" encoding="utf-8" ?> 
            <Matches>
                <Match>
                    <Type>TODO</Type> 
                    <Text>comment this method</Text> 
                    <Path>C:\MyProjects\MyPath</Path>
                    <File>MyFile.cs</Filename> 
                    <LineNumber>146</LineNumber> 
                    <Author>md</Author>
                    <Date>14-02-2004</Date>
                </Match>
                ...
            </Matches>

Requirements

Assembly: NAnt.Contrib.Tasks (0.91.4312.0)