= Groovy Groosh = Provides a shell-like capability for handling external processes in Groovy. = Groosh in Action = The following example shows Groosh in action: //Read a text file and write it to stdout @Grapes([ @Grab(group='org.codehaus.groovy.modules.groosh', module='groovy-groosh',version='[0.3.5,)'), @GrabConfig(systemClassLoader=true)]) import groosh.Groosh Groosh.withGroosh(this) cat('test_scripts/blah.txt') >> stdout Another example : //Count the lines of all .java files in this directory and //all its subdirectories. //Write the total number of lines to stdout. @Grapes([ @Grab(group='org.codehaus.groovy.modules.groosh', module='groovy-groosh',version='[0.3.5,)'), @GrabConfig(systemClassLoader=true)]) import groosh.Groosh Groosh.withGroosh(this) def f = find('.', '-name', '*.java', '-ls') def total = 0 def lines = grid { values,w -> def x = values[2,4,6,10] def s = x.join(' ') w.println(s) total += Integer.parseInt(values[6]) } f | lines lines >> stdout println "Total: ${total}" Sometimes the name of a shell command conflicts with a Groovy method (for example ''grep''). This means that gsh.grep(...) does not execute the shell command, but the Groovy method grep(...). As a workaround for that you may prefix any shell command with _ this means the example above becomes gsh._grep(...) The following example shows a more elaborate example. It uploads photos to a flickr account using the command line tool flickcurl. A photo set of this images is created and named after the current directory. import static groosh.Groosh.groosh import static org.codehaus.groovy.groosh.stream.DevNull.devnull ids = [:] shell = groosh() //get all images in this folder and upload it to flickr //remember the photo id we get from flickr shell.ls().grep(~/.*jpg/).each { println "Uploading file $it to flickr" flickcurl = shell.flickcurl("upload",it,"friend","family").useError(true) id = flickcurl.grep(~/.*Photo ID.*/)[0].split(":")[1].trim() ids[it] = id println "Photo ID is: $id" } //we need to know the first photo id firstKey = ids.keySet().toList()[0] //create a set with the name of the directory we are in right now //use the id of the first photo as set cover setName = shell.pwd().text.split("/")[-1] println "Creating set: $setName" flickcurl = shell.flickcurl("photosets.create",setName, setName,ids[firstKey]).useError(true) id = flickcurl.grep(~/.*Photoset.*/)[0].split(" ")[2].trim() println "Photoset ID is: $id" //make a backup of the ids in a file for later reference println "Writing ids to a file" file = new File(shell.pwd().text.trim() + "/.flickrset") file << "Photoset:" << id << "\n" ids.each { file << it.key << ":" << it.value << "\n" } //the first photo is already part of the photo set so lets remove it ids.remove(firstKey) //add the remaining photos to the photo set ids.each { println "Adding photo to set at flickr: $it" shell.flickcurl("photosets.addPhoto",id,it.value) | devnull() } println "DONE"