diff data_manager/data_manager_metaphlan2_download.py @ 0:9c4ad82be5bd draft

planemo upload for repository https://github.com/galaxyproject/tools-iuc/tree/master/data_managers/data_manager_metaphlan2_database_downloader commit 345fb7ef485456ae833be5ad2d2ce4f8765652c8

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/data_manager/data_manager_metaphlan2_download.py	Sat Mar 04 12:11:20 2017 -0500
@@ -0,0 +1,150 @@
+#!/usr/bin/env python
+#
+# Data manager for reference data for the 'humann2' Galaxy tools
+import json
+import optparse
+import os
+import subprocess
+import sys
+
+
+# Utility functions for interacting with Galaxy JSON
+def read_input_json(jsonfile):
+    """Read the JSON supplied from the data manager tool
+
+    Returns a tuple (param_dict,extra_files_path)
+
+    'param_dict' is an arbitrary dictionary of parameters
+    input into the tool; 'extra_files_path' is the path
+    to a directory where output files must be put for the
+    receiving data manager to pick them up.
+
+    NB the directory pointed to by 'extra_files_path'
+    doesn't exist initially, it is the job of the script
+    to create it if necessary.
+
+    """
+    params = json.loads(open(jsonfile).read())
+    return (params['param_dict'],
+            params['output_data'][0]['extra_files_path'])
+
+
+# Utility functions for creating data table dictionaries
+#
+# Example usage:
+# >>> d = create_data_tables_dict()
+# >>> add_data_table(d,'my_data')
+# >>> add_data_table_entry(dict(dbkey='hg19',value='human'))
+# >>> add_data_table_entry(dict(dbkey='mm9',value='mouse'))
+# >>> print str(json.dumps(d))
+def create_data_tables_dict():
+    """Return a dictionary for storing data table information
+
+    Returns a dictionary that can be used with 'add_data_table'
+    and 'add_data_table_entry' to store information about a
+    data table. It can be converted to JSON to be sent back to
+    the data manager.
+
+    """
+    d = {}
+    d['data_tables'] = {}
+    return d
+
+
+def add_data_table(d, table):
+    """Add a data table to the data tables dictionary
+
+    Creates a placeholder for a data table called 'table'.
+
+    """
+    d['data_tables'][table] = []
+
+
+def add_data_table_entry(d, table, entry):
+    """Add an entry to a data table
+
+    Appends an entry to the data table 'table'. 'entry'
+    should be a dictionary where the keys are the names of
+    columns in the data table.
+
+    Raises an exception if the named data table doesn't
+    exist.
+
+    """
+    try:
+        d['data_tables'][table].append(entry)
+    except KeyError:
+        raise Exception("add_data_table_entry: no table '%s'" % table)
+
+
+def download_metaphlan2_db(data_tables, build, table_name, target_dir):
+    """Download MetaPhlAn2 database
+
+    Creates references to the specified file(s) on the Galaxy
+    server in the appropriate data table (determined from the
+    file extension).
+
+    The 'data_tables' dictionary should have been created using
+    the 'create_data_tables_dict' and 'add_data_table' functions.
+
+    Arguments:
+      data_tables: a dictionary containing the data table info
+      table_name: name of the table
+      target_dir: directory to put copy or link to the data file
+
+    """
+    cmd = "download_metaphlan2_db.py --output %s" % (target_dir)
+    db_dir = os.path.join(target_dir, build)
+    subprocess.check_call(cmd, shell=True)
+    os.rename(os.path.join(target_dir, "db_v20"), db_dir)
+    add_data_table_entry(
+        data_tables,
+        table_name,
+        dict(
+            dbkey=build,
+            value="mpa_v20_m200",
+            name="MetaPhlAn2 clade-specific marker genes",
+            path=db_dir))
+
+
+if __name__ == "__main__":
+    print("Starting...")
+
+    # Read command line
+    parser = optparse.OptionParser(description='Download MetaPhlan2 database')
+    parser.add_option('--database', help="Database name")
+    options, args = parser.parse_args()
+    print("args   : %s" % args)
+
+    # Check for JSON file
+    if len(args) != 1:
+        sys.stderr.write("Need to supply JSON file name")
+        sys.exit(1)
+
+    jsonfile = args[0]
+
+    # Read the input JSON
+    params, target_dir = read_input_json(jsonfile)
+
+    # Make the target directory
+    print("Making %s" % target_dir)
+    os.mkdir(target_dir)
+
+    # Set up data tables dictionary
+    data_tables = create_data_tables_dict()
+    add_data_table(data_tables, "metaphlan2_database")
+
+    # Fetch data from specified data sources
+    if options.database == "db_v20":
+        download_metaphlan2_db(
+            data_tables,
+            "v20",
+            "metaphlan2_database",
+            target_dir)
+
+    # Write output JSON
+    print("Outputting JSON")
+    print(str(json.dumps(data_tables)))
+    with open(jsonfile, 'wb') as out:
+        out.write(json.dumps(data_tables))
+    print("Done.")