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How to prepare a public release


When creating an official release for Snowpack, several things must be done, both in term of source code management, documentation and packaging. This Howto should provide a step by step description of what has to be done.

Preparing auxiliary components

Snowpack now depends on several other components that must be available as stable releases (either released at the same time as Snowpack or on a separate schedule). These are MeteoIO, inishell and sn_gui. * Remove all previous installed version of the auxiliary components * Install all auxiliary components in their last stable release * On Windows, there is currently a bug in cmake preventing it from handling properly paths with spaces. So meteoio must be installed to a path that does not contain any spaces in order to be properly detected

Preparing the changelog

  • Get all the logs since the last release: get the matching svn number from the tags tree, then do a svn log -rXXX:HEAD > Changelog_full.txt where XXX is the starting svn version
  • Open the full changelog as well as an empty file side by side.
  • Start the new file with something like "This is the changelog for Snowpack release 3.1.0"
  • As you go through the full changelog, add items to the new file
  • Once you've reached the end of the full changelog, close it and focus on the new changelog
  • Try grouping the items you wrote by categories, rephrasing them if necessary. Follow the markdown syntax. You can also edit a previous changelog to copy the style.
  • Once this is done, create a new page in the documentation tab of the Snowpack forge. Name it as ChangelogX-X-X with X-X-X being the release number. Use "Brief changelog of Snowpack-X.X.X" as page description. Copy/paste your changelog in the content section, add label "Phase:QA". Check with a preview before committing!
  • Link your new changelog in the Changelogs page
  • Add label "Deprecated" to the previous changelog

Preparing the documentation

  • Obviously, the doxygen documentation must be up to date with the current status of the code. Please also fix all doxygen warnings
  • Edit the file config.dox in the source code directory and update the documentation version number (key PROJECT_NUMBER) to the release number
  • If new graphic files have been prepared, please make sure they show at the proper size in the html and pdf versions
  • Commit any changes you've made

Preparing the source code

  • Of course, the warnings should be suppressed (they should never have showed up in the svn trunk) or silenced (for the warnings that have a good reason to stay) on all supported platforms
  • Please check that the whole compilation process (including detection of auxiliary components) works properly on all platforms
  • Update the release number in CMakeLists.txt as well as in snowpack.lsm. The later should also contain the release date.
  • Commit any changes you've made
  • Check out Snowpack to a fresh location
  • Do a default "ccmake .", enabling "install doc" and "bundle all"
  • Generate the source package by doing "make package_source" (it is usually easier to do it on Linux)
  • Compile (make) and generate the documentation (make doc)


  • Copy the inishell.jar file in tools/
  • Redo "ccmake ." so that it finds the newly compiled libraries
  • Do "cpack" on Linux and Windows, "cpack PackageMaker" on osX
  • Check that the packages work properly:
    • on Linux: it should have created a tarball, a deb and an rpm. Open then with gdebi and browse what they contain if you don't want to have to install them
    • on osX: install the dmg and explore the newly installed application
    • on Windows: run the installer and explore the newly installed application, also checking the start menu shortcuts
    • The packages should contain:
      • the libraries (as .dll or .dylib or .so as well as .a) for snowpack and meteoio
      • the includes for snowpack and meteoio
      • the html documentation for snowpack and meteoio
      • the examples for snowpack and meteoio
  • Create the documentation only package from the documentation:
    • copy or move the doc/ directory as snowpack-X.X.X-doc (X.X.X being the release number)
    • remove the .svn directories from it: find snowpack-X.X.X-doc -type d -name ".svn" | xargs -i rm -Rf {}
    • pack the documentation: tar -czvf snowpack-X.X.X-doc.tgz snowpack-X.X.X-doc/

In the end, you should have the following packages: * for Linux, a binary tarball as well as a deb and an rpm * for osX, a dmg * for Windows, an exe installer * a documentation only package * a source package


  • Go to the Snowpack forge Download page, open it in two browser's tabs
  • Open the last download of the previous release in one tab
  • Click on "New download" in the second tab
  • Copy/paste and modify the previous description to the new download, including file names and tags
  • Point the new download to the matching archive on your disk and create the download
  • Add "Deprecated" as the last tag of the matching download of the previous release (in the first tab)
  • Proceed along these lines for all downloads