Like I mentioned earlier, tycho-versions-plugin uses decentxml to manipulate pom.xml files. There is more or less complete version refactroing engine implementation there, but actual pom changes go through MutablePomFile [1]. The advantages of decentxml is that it has good and easy to use API and it provides "perfect" file-model-file roundtrip.
[1] http://git.eclipse.org/c/tycho/org.eclipse.tycho.git/tree/tycho-release/tycho-versions-plugin/src/main/java/org/eclipse/tycho/versions/pom/MutablePomFile.java -- Regards, Igor On Wed, Sep 2, 2015, at 10:13 PM, Barrie Treloar wrote: > There are ~3000 plugins in Maven Central ( > http://search.maven.org/#search|ga|1|p%3A%22maven-plugin%22). My eyes > glazed over after scanning through the first 100 to see if there are > plugin > names to indicate if they might re-write poms. > > So I'll stick with the available plugins list ( > http://maven.apache.org/plugins/) and it looks like the only plugins that > modify the pom are: > * release > * versions > > I've also looked at m2eclipse (https://github.com/eclipse/m2e-core.git) > to > see how it rewrites poms. m2eclipse can get away with working with the > Eclipse provided StructuredModels to grab a dom version of the editor and > just rewrite that one section, knowing that it doesn't need to rewrite > the > whole file. > > The Maven plugins on the other hand need to stream in the file and > preserve > all the kooky white space and commenting, as well as update just the > sections they want to modify. > > The release plugin uses org.jdom.Element to manipulate rewrites, and > org.jdom.output.XMLOutputter with a raw formatter to write the pom file > out. > > The versions plugin uses StringBuilder as an in memory copy of the pom > file > and the StAX2 api to manipulate rewrites, and an XmlStreamWriter to write > the pom file out. > > Have I missed any plugins? > > For such a small number of plugins that need to make rewrites it probably > not necessary to have this functionality offered in Maven directly... --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org For additional commands, e-mail: dev-h...@maven.apache.org
