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#! /usr/bin/python
###############################################################################
# taskwarrior - a command line task list manager.
#
# Copyright 2006-2014, Paul Beckingham, Federico Hernandez.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
#
# http://www.opensource.org/licenses/mit-license.php
#
###############################################################################
"""
export-sql.py -- Export the taskwarrior database as a series of SQL commands.
Example usage::
$ ./export-sql.py | sqlite3 mytasks.db
$ /usr/bin/sqlite3 mytasks.db "select * from annotations;"
This script has only been tested with sqlite3, but in theory, it could be
easily modified to supported mysql, postgres or whatever you choose.
Author: Ralph Bean
"""
import sys
import commands
import json
from datetime import datetime
# Note that you may want to modify the field sizes to suit your usage.
table_definitions = """
CREATE TABLE tasks (
uuid VARCHAR(255) NOT NULL,
description VARCHAR(255) NOT NULL,
entry DATETIME NOT NULL,
end DATETIME,
priority VARCHAR(32),
project VARCHAR(32),
status VARCHAR(32),
PRIMARY KEY (uuid)
);
CREATE TABLE annotations (
uuid VARCHAR(255) NOT NULL,
description VARCHAR(255) NOT NULL,
entry DATETIME NOT NULL,
FOREIGN KEY(uuid) REFERENCES tasks(uuid)
);
"""
replacements = {
'"': '&dquot;',
"'": '"',
'[': '&open;',
']': '&close;',
'/': '\\/',
}
def escape(s):
""" Escape a string in the taskwarrior style """
for unsafe, safe in replacements.iteritems():
s = s.replace(unsafe, safe)
return s
# A lookup table for how to convert various values by type to SQL
conversion_lookup = {
# Tack on an extra set of quotes
unicode: lambda v: "'%s'" % escape(v),
# Do the same as for unicode
str: lambda v: convert(unicode(v)),
# Convert to ISO format and do the same as for unicode
datetime: lambda v: convert(v.isoformat(' ')),
# Replace python None with SQL NULL
type(None): lambda v: 'NULL',
}
# Compose a value with its corresponding function in conversion_lookup
convert = lambda v: conversion_lookup.get(type(v), lambda v: v)(v)
def parse_datetime(task):
""" Parse the datetime strings given to us by `task export` """
for key in ['entry', 'end']:
if key in task:
task[key] = datetime.strptime(task[key], "%Y%m%dT%H%M%SZ")
return task
def to_sql(task):
""" Create a list of SQL INSERT statements out of a task python dict """
def make_annotation(annot):
""" Create a list of SQL INSERT statements for an annotation """
annot['uuid'] = task['uuid']
template = "{uuid}, {description}, {entry}"
annot = dict(zip(annot.keys(), map(convert, annot.values())))
values = template.format(**annot)
return "INSERT INTO \"annotations\" VALUES(%s)" % values
template = "{uuid}, {description}, {entry}, {end}, " + \
"{priority}, {project}, {status}"
nullables = ['end', 'priority', 'project', 'status']
defaults = dict([(key, None) for key in nullables])
defaults['annotations'] = []
defaults.update(task)
defaults = dict(zip(defaults.keys(), map(convert, defaults.values())))
values = template.format(**defaults)
annotations = map(make_annotation, defaults['annotations'])
return ["INSERT INTO \"tasks\" VALUES(%s)" % values] + annotations
def main():
""" Return a list of SQL statements. """
# Use the taskwarrior 2.0+ export command to filter and return JSON
command = "task rc.verbose=nothing rc.json.array=no export " + " ".join(sys.argv[1:])
# Load each task from json to a python dict
tasks = map(json.loads, commands.getoutput(command).split(",\n"))
# Mangle datetime strings into python datetime objects
tasks = map(parse_datetime, tasks)
# Produce formatted SQL statements for each task
inserts = sum(map(to_sql, tasks), [])
return inserts
if __name__ == '__main__':
# Get the INSERT statements
lines = main()
# Combine them with semicolons
sql = table_definitions + ";\n".join(lines) + ';'
# Print them out, decorated with sqlite3 trappings
print """
BEGIN TRANSACTION;
{sql}
COMMIT;""".format(sql=sql)
###############################################################################
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