The root mount-point can end with a / while the mount-point read from
the file /etc/mtab does not end with a /.
This leads to skip the unmounting of the root mount-point and causes the
removal of the root mountpoint directory to fail with EBUSY because it
is still mounted.
This uses the python functions os.path.normpath() to normalize the root
mount-point (i.e. to drop the trailing /) and os.path.commonprefix() to
determine the longest common prefix between the two mount-points. If the
returned prefix is identical to the normalized root mount-point then the
mount-point must be added to the list of the mount-points to unmount.
More generally, the python modules should rely on the os.path functions
to compare for paths instead of using strings. It covers this way lots
of corner cases (path with "//", "/../", "/./", ...).
- point to main Calamares site in the 'part of' headers instead
of to github (this is the "this file is part of Calamares"
opening line for most files).
- remove boilerplate from all source files, CMake modules and completions,
this is the 3-paragraph summary of the GPL-3.0-or-later, which has
a meaning entirely covered by the SPDX tag.
instead of having to hope users save an installation log before leaving live mode,
this commit gives distributions the option to have a full calamares -d log available on
the newly installed system
see the readme.md for details
this is fully tested and working properly, using the example launcher script & .desktop line
as noted in the readme
