Hi David, On 29 Mrz., 00:31, "Dr. David Kirkby" <david.kir...@onetel.net> wrote: > ... > That's not going to work until python is installed. Why not make it a shell > script instead - it would work before python is built, irrespective of whether > someone has python installed on their machine.
For the application that I have in mind -- namely in spkg-install for optional packages, and perhaps for upgrading (so that one needs to find out whether one component is outdated) -- it is granted that python is present, because at that point Sage is already built. If I understand correctly, the tasks are - to test whether SAGE_ROOT/spkg/installed/ contains a file whose name begins with a given string, and - if there are several such files, to extract and compare the version numbers and return the file name that belongs to the highest version number. I have no idea how to accomplish the second task with a shell script (I am pretty much of a newbie in shell scripts). And even for the first task I could imagine that there is a problem of platform specific shell commands (but you certainly know better than I). For extacting the version numers, can we assume that any spkg "foo" will have a name including the version number like foo- x[.y[.z[...]]].spkg, where x,y,z,... are numbers, except for the last one, which can be of the form 'p' plus a number? . Best regards, Simon -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org To unsubscribe from this group, send email to sage-devel+unsubscribegooglegroups.com or reply to this email with the words "REMOVE ME" as the subject.
