[lazarus] CVS Updatesuy

[Mattias Gaertner]

On Wed, 18 Jun 2003 20:08:10 +0200 (CEST)
Michael.VanCanneyt at wisa.be wrote:

> 
> 
> On Wed, 18 Jun 2003, Mattias Gaertner wrote:
> 
> > On Wed, 18 Jun 2003 18:57:47 +0200 (W. Europe Daylight Time)
> > Michael Van Canneyt <michael.vancanneyt at wisa.be> wrote:
> >
> > >
> > > > The lpi only uses absolute filenames if the file is not in the
> > > > project directory. Can you give the full filenames?
> > >
> > > Delphi always uses filenames relative to the project directory.
> > > SysUtils contains a function ExtractRelativePath() which does this for
> > > you.
> >
> > This will will raise other problems.
> > For example ExtractRelativepath('/home/bla/','/tmp/some.txt') results in
> > '../../tmp/some.txt'. Moving the project to /home/ will not find the
> > file any longer.
> > The purpose of relative filenames is, that the project and all its files
> > can be transferred easily to another location. Normally this means
> > moving the project directory.
> 
> >
> > The ExtractRelativepath will only help, if you spread your project over
> > several directories:
> >
> > /home/projects/projectdir/project1.lpi
> > /home/projects/otherdir/unit1.pas
> 
> I suppose that 99% of all projects will be one directory containing
> the project file, and all other files in directories. Lazarus itself
> is such a project.
> 
> So for 99% of all cases, using the relative path helps in keeping your
> project moveable.
> 
> This is useful for instance if you have 2 branches in CVS. If you check
> out the branches in different directories
> /home/me/projects/myproject (+ subdirs)
> 
> Check out two copies, one for each branch:
> /home/me/projects/myproject-main
> /home/me/projects/myproject_fixes
> 
> If you keep relative paths, this will work. With absolute paths, you must
> rename all files.
> 
> I think that keeping relative paths is a solution. If you use files
> totally outside the project dir, then the IDE can simply store the
> absolute path. But all subdirectories should be as relative paths. It is a
> small check to do this, finally. If extractrelativepath starts with ..,
> just use the absolute path.  In all other cases, use the relative path.

?
Is this not the same as simply cutting the project directory from the
filename?


Mattias