That's a great thing Nyall. It proves QGIS is an industry level product from the side of code quality! Thanks from me and Gis3W.
giovanni 2015-02-11 12:29 GMT+01:00 Nathan Woodrow <[email protected]>: > > Thanks to Jürgen and Martin's assistance > > And yours of course. This is some great stabilization to the product. > > - Natahn > > On Wed Feb 11 2015 at 9:13:32 PM Nyall Dawson <[email protected]> > wrote: > >> Hi all, >> >> If you've been following recent git commits, you'll have noticed a lot >> of "Coverity" related commits, and may be wondering what these are all >> about. >> >> Coverity Scan ( https://scan.coverity.com/ ) is a powerful automated >> static code analyser which is able to detect a large number of code >> errors, such as memory leaks and potential crashes, and even things >> like accidental copy/paste errors. It's a well respected service and >> fortunately offers free testing of open source projects (it's quite >> expensive for commercial software). >> >> When we first ran Coverity over the QGIS codebase about 2 weeks ago it >> picked up just over 1000 potential issues, with a defect density of >> about 1 error per 1000 lines of code. Apparently the standard for >> "good" software is a defect density of 1. For comparison, python sits >> at 0.08, and the Linux kernel at 0.53. Libreoffice's latest release >> hit 0.02, and they used this as a big highlight of their press release >> [1]. >> >> Thanks to Jürgen and Martin's assistance we're now down to a defect >> density of 0.26. I'm hoping that with a bit more work we can smash >> this down even further and possibly even reach the coveted "Coverity >> Clean" status [2] for 2.8. In any case this is a great demonstration >> that we are serious about code quality and stable releases, and is a >> good selling point for our first LTS release (alongside the expanding >> test suite and Travis CI testing). >> >> Unfortunately we can't automate submission to Coverity via Travis >> builds due to the compilation time required to build QGIS using >> Coverity exceeding Travis' limits, so I'm currently manually >> submitting builds to Coverity on a semi-regular schedule. >> >> The full Coverity defect reports are available by invitation only. If >> you're a developer and want to view them, let me know and I'll add you >> to the group. >> >> Nyall >> >> >> [1] http://blog.documentfoundation.org/2015/01/29/libreoffice-4-4-the- >> most-beautiful-libreoffice-ever/ >> [2] Why is this important? well... I really want to beat MapInfo >> there! http://www.pb.com/pbs-voc/product-improvements.shtml >> _______________________________________________ >> Qgis-developer mailing list >> [email protected] >> http://lists.osgeo.org/mailman/listinfo/qgis-developer > > > _______________________________________________ > Qgis-developer mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/qgis-developer > -- Giovanni Allegri http://about.me/giovanniallegri Twitter: https://twitter.com/_giohappy_ blog: http://blog.spaziogis.it GEO+ geomatica in Italia http://bit.ly/GEOplus
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