Hi,

I wrote two scripts to help me visualize package dependencies in sage better, and thought it would be nice to share them.

Here is a sample use :
jpuydt@newton:~$ ./deps_cleaner.sh ~/sage-5.0.beta1/spkg/standard/deps | ./deps_to_dot.py > sage.dot
jpuydt@newton:~$ dot -Tpng sage.dot -osage.png
jpuydt@newton:~$ xdg-open sage.png

(The dot tool is the graphviz one.)

I know the resulting directed graph can't be a tree because it's logical some leaves can be on several branches -- but I'm quite surprised by how many roots it has!

Snark on #sagemath

PS: Of course, it's still possible those script are buggy to the core and the graphs unreliable sources of information.

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Attachment: deps_cleaner.sh
Description: Bourne shell script

#!/usr/bin/python

import sys

print ('digraph G {')

for line in sys.stdin.readlines ():
    head, tail = line.split (':')
    for dep in tail.split (' '):
        if dep.strip() != '':
            print ('  {} -> {};'.format(head, dep.strip ()))
print ('}')

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