Thursday, June 25, 2009

Groovy: Find files modified in the last X days

On a recent project there was a requirement to search a directory (and all sub-directories) for any files (all files were images) changed in the last 7 days and load them into a database table. The code was being written in Groovy and being lazy I just used the *nix find command and processed the command output. I wanted to avoid writing the code to recurse the directories thinking it would be easier to write, read and maintain if I just processed the find command output.

I took a look today and found out how easy Groovy makes this, so when I have a chance I'll rewrite using the code below to make it pure Groovy and portable between *nix and Windows.


File rootDir = new File("d:/temp") // arg[0] == d:/temp
long checkTime = new Date().minus(7).time // arg[1] == 7
rootDir.eachFileRecurse {
if (it.isFile() && it.lastModified() >= checkTime) {
println "${it} [${new Date(it.lastModified())}]"
// call the method to load this image file...
}
}

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