Folders and Projects are just convenient ways to name and navigate through directories. This helps you organize your code, particularly when using Jqt. It also helps when sharing code with someone else who may use a different directory structure, since they need only define Folder names to match their directories, otherwise no change is needed to the source code.
A Folder is a short name for a directory, and Project is a subdirectory of a Folder with a .jproj file. Typically you create a Folder for any new system, and Projects under that Folder for its various components. For example, on my machine jpath '~Sqlite' NB. a folder name /home/chris/dev/apps/sqlite/source dir jpath '~Sqlite/base' NB. a project under that folder api.ijs 1947 27-Aug-18 12:29:08 base.jproj 114 24-May-18 12:18:49 build.ijs 50 30-Apr-18 07:42:27 info.ijs 399 30-Apr-18 07:42:27 ... The examples in the wiki should give you the idea. As regards your questions: > Is it mandatory, that project directories are children of the folders > specified in UserFolders_j_? Or is it at least discouraged to create a J > project in an arbitrary directory which is not part of the folder hierarchy already known to J? You can create a project anywhere you like, but lose the benefit of Folders if your project is not under a Folder. > Or, to put it in another way: What is the recommended way to create a J > project in a directory outside of the /home/user/j9.4-user/projects hierarchy? Create a Folder name for your directory (Edit|Configure|Folders). Restart J, then Project|New. Alternatively, just create a directory under your Folder and add an empty .jproj file with that name. On Sat, Mar 4, 2023 at 4:32 AM Thomas Bulka <thomas.bu...@constraintegic.net> wrote: > > Hi Forum, > > I studied the guide about folders and projects in the wiki and it kind > of confused me > (https://code.jsoftware.com/wiki/Guides/Folders_and_Projects). > > It says "A project is a subdirectory of a folder that contains a file > with extension .jproj with the same name as the directory." Fine. > > Folders have been introduced together with the nouns SystemFolder_j_ and > UserFolders_j_ which J creates upon installation. Also fine. > > I'm not sure about the conclusion, though. Is it mandatory, that project > directories are children of the folders specified in UserFolders_j_? Or > is it at least discouraged to create a J project in an arbitrary > directory which is not part of the folder hierarchy already known to J? > > Or, to put it in another way: What is the recommended way to create a J > project in a directory outside of the /home/user/j9.4-user/projects > hierarchy? > > Sorry for this most likely trivial question, but somehow I'm not able to > figure out the connection between folders and directories. > > Thanks in advance! > > Regards, > > Thomas > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
