OpenStreetMap Tasking Manager

About

OSMTM enables collaborative work on specific areas in OpenStreetMap by defining clear workflows to be achieved and by breaking tasks down into pieces.

The application is written in Python using the Pyramid framework.

This is the 2.0 version of the Tasking Manager.

Installation

First clone the git repository:

git clone --recursive git://github.com/hotosm/osm-tasking-manager2.git

Installing OSMTM in a Virtual Python environment is recommended.

To create a virtual Python environment:

cd osm-tasking-manager2
sudo easy_install virtualenv
virtualenv --no-site-packages env
env/bin/python setup.py develop

Tip: if you encounter problems installing psycopg2 especially on Mac, it is recommended to follow advice proposed here.

Database

OSMTM requires a PostgreSQL/PostGIS database. Version 2.x of PostGIS is required.

First create a database user/role named www-data:

sudo -u postgres createuser -SDRP www-data

Then create a database named osmtm:

sudo -u postgres createdb -O www-data osmtm
sudo -u postgres psql -d osmtm -c "CREATE EXTENSION postgis;"

You're now ready to do the initial population of the database. An initialize_osmtm_db script is available in the virtual env for that:

env/bin/initialize_osmtm_db

### Local settings

You certainly will need some local specific settings, like the db user or password. For this, you can create a local.ini file in the project root, where you can then override every needed setting. For example:

[app:main]
sqlalchemy.url = postgresql://www-data:www-data@localhost/osmtm

Note: you can also put your local settings file anywhere else on your file system, and then create a LOCAL_SETTINGS_PATH environment variable to make the project aware of this.

Launch the application

env/bin/pserve --reload development.ini

Styles

The CSS stylesheet are compiled using less. Launch the following command as soon as you change the css::

lessc -ru osmtm/static/css/main.less > osmtm/static/css/main.css

Tests

The tests use a separate database. Create that database first:

sudo -u postgres createdb -O www-data osmtm_tests
sudo -u postgres psql -d osmtm_tests -c "CREATE EXTENSION postgis;"

Create a local.test.inifile in the project root, where you will add the settings for the database connection. For example:

[app:main]
sqlalchemy.url = postgresql://www-data:www-data@localhost/osmtm_tests

To run the tests, use the following command:

env/bin/nosetests

Application deployment

pull latest updates from the repository: git pull origin
update the submodules: git submodule update
update/install python modules: python setup.py develop
create database dump: pg_dump -Fc -f osmtm2_latest.dmp database_name
run database migrations: alembic upgrade head
compile messages: python setup.py compile_catalog
restart application server

Localization

Initializing translation files

In general managing translation files involves:

generate pot file: python setup.py extract_messages
initialize a message catalogue file (english): python setup.py init_catalog -l en
- if the catalogue is already created use: python setup.py update_catalog
eventually compile messages: python setup.py compile_catalog
append new language to the available_languages configuration variable in production.ini file, for example available_languages = en fr

Using Transifex service

in the project top level directory, initialize transifex service (after installing transifex-client): tx init
- the init process will ask for service URL and username/password, which will be saved to ~/.transifexrc file
if the project has already been initialized, but you are missing ~/.transifexrc, create the file and modify it's access privileges chmod 600 ~/.transifexrc

Example .transifexrc file:

[https://www.transifex.com]
hostname = https://www.transifex.com
password = my_super_password
token =
username = my_transifex_username

after creating the project on the Transifex service: osm-tasking-manager2, generate the pot file, and add it as a master resource on the project, full resource name, in this case, is osm-tasking-manager2.master

Setting up resources

add initial source file, in this case English:
- tx set --source -r osm-tasking-manager2.master -l en osmtm/locale/en/LC_MESSAGES/osmtm.po
add existing source files, in this case French:
- tx set -r osm-tasking-manager2.master -l fr osmtm/locale/fr/LC_MESSAGES/osmtm.po
push resources on the transifex service (this will overwrite any existing resources on the service)
- tx push -s -t
- -s - pushes source files (English)
- -t - pushes translation files (French)

Pulling changes

to pull latest changes from Transifex service execute: tx pull
- this will pull every available language from the Transifex service, even the languages that are not yet mapped
- if the language is not mapped, translated language file will be saved to the local .tx directory, which is not what we want so we need to define the mapping
- for example, if we want to correctly map Croaian language you need to execute: tx set -r osm-tasking-manager2.master -l hr osmtm/locale/hr/LC_MESSAGES/osmtm.po
  - there is no need to create the actual po file or the directory structure, Transifex client will manage that for us
there is also a possibility to pull specific languages: tx pull -l hr
or pull only languages that have a certain completeness percentage: tx pull --minimum-perc=90

Transifex workflow

Updating source files, locally and on the service

update pot and source po file
- python setup.py extract_messages
- python setup.py init_catalog -l en
push the source file to Transifex service
- tx push -s

Pull latest changes from the service

when adding a new language:
- we need to configure local mapping: tx set -r osm-tasking-manager2.master -l hr osmtm/locale/hr/LC_MESSAGES/osmtm.po
- append the new language to the available_languages configuration variable in production.ini file: available_languages = en fr hr
after there are some translation updates, pull latest changes for mapped resources
- tx pull -l fr,hr
compile language files
- python setup.py compile_catalog

License

mappingdc/osm-tasking-manager2

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