graphdeps <filter> produces "deps.png" in the working directory. Just graphdeps will graph all tasks. You can change the default behavior by specifying a more specific query.
| #!/usr/bin/env python | |
| 'graph dependencies in projects' | |
| import json | |
| from subprocess import Popen, PIPE | |
| import sys | |
| HEADER = "digraph dependencies {" | |
| FOOTER = "}" | |
| JSON_START = '[' | |
| JSON_END = ']' | |
| def call_taskwarrior(cmd): | |
| 'call taskwarrior, returning output and error' | |
| tw = Popen(['task'] + cmd.split(), stdout=PIPE, stderr=PIPE) | |
| return tw.communicate() | |
| def get_json(query): | |
| 'call taskwarrior, returning objects from json' | |
| result, err = call_taskwarrior('export %s' % query) | |
| return json.loads(JSON_START + result + JSON_END) | |
| def call_dot(instr): | |
| 'call dot, returning stdout and stdout' | |
| dot = Popen('dot -T png'.split(), stdout=PIPE, stderr=PIPE, stdin=PIPE) | |
| return dot.communicate(instr) | |
| if __name__ == '__main__': | |
| query = sys.argv[1:] | |
| print 'Calling TaskWarrior' | |
| data = get_json(' '.join(query)) | |
| # first pass: labels | |
| lines = [HEADER] | |
| print 'Printing Labels' | |
| for datum in data[0]: | |
| lines.append('"%s"[label="%s"];' % (datum['uuid'], datum['description'])) | |
| # second pass: dependencies | |
| print 'Resolving Dependencies' | |
| for datum in data[0]: | |
| for dep in datum.get('depends', '').split(','): | |
| if dep != '': | |
| lines.append('"%s" -> "%s";' % (dep, datum['uuid'])) | |
| lines.append(FOOTER) | |
| print '\n'.join(lines) | |
| print 'Calling dot' | |
| png, err = call_dot('\n'.join(lines).encode('utf-8')) | |
| if err != '': | |
| print 'Error calling dot:' | |
| print err.strip() | |
| print 'Writing to deps.png' | |
| with open('deps.png', 'w') as f: | |
| f.write(png) |