we can now have permissions such as these ones
{"/":["*"],"/somedir":["list","download"]}
The old permissions are automatically converted to the new structure,
no database migration is needed
and better document quota management issues for system commands.
rsync and git are not enabled in the default config so don't install
them in sample Dockerfiles, simply add a comment to facilitate their
installation if needed
Fixes#44
we only need to wait for the write from the local command to
the ssh channel. There is no need to wait for the write from ssh
channel to the local command stdin
We use the system commands "git-receive-pack", "git-upload-pack" and
"git-upload-archive". they need to be installed and in your system's
PATH. Since we execute system commands we have no direct control on
file creation/deletion and so quota check is suboptimal: if quota is
enabled, the number of files is checked at the command begin and not
while new files are created.
The allowed size is calculated as the difference between the max quota
and the used one. The command is aborted if it uploads more bytes than
the remaining allowed size calculated at the command start. Quotas are
recalculated at the command end with a full home directory scan, this
could be heavy for big directories.
md5sum, sha1sum are used by rclone.
cd, pwd improve the support for RemoteFiles mobile app.
These commands are all implemented inside SFTPGo so they work even
if the matching system commands are not available, for example on Windows
