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from __future__ import absolute_import |
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import os |
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import re |
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import itertools |
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import time as t |
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from os.path import join as pjoin |
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import smartdispatch |
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from smartdispatch import utils |
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from smartdispatch.filelock import open_with_lock |
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from smartdispatch.argument_template import argument_templates |
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UID_TAG = "{UID}" |
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def generate_name_from_command(command, max_length_arg=None, max_length=None): |
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''' Generates name from a given command. |
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Generate a name by replacing spaces in command with dashes and |
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by trimming lengthty (as defined by max_length_arg) arguments. |
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Parameters |
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---------- |
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command : str |
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command from which to generate the name |
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max_length_arg : int |
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arguments longer than this will be trimmed keeping last characters (Default: inf) |
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max_length : int |
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trim name if longer than this keeping last characters (Default: inf) |
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Returns |
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------- |
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name : str |
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slugified name |
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''' |
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if max_length_arg is not None: |
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max_length_arg = min(-max_length_arg, max_length_arg) |
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name = t.strftime("%Y-%m-%d_%H-%M-%S_") |
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name += '_'.join([utils.slugify(argvalue)[max_length_arg:] for argvalue in command.split()]) |
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return name[:max_length] |
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def get_commands_from_file(fileobj): |
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''' Reads commands from `fileobj`. |
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Parameters |
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---------- |
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fileobj : file |
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opened file where to read commands from |
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Returns |
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------- |
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commands : list of str |
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commands read from the file |
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''' |
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return fileobj.read().strip().split('\n') |
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def unfold_command(command): |
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''' Unfolds a command into a list of unfolded commands. |
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Unfolding is performed for every folded arguments (see *Arguments templates*) |
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found in `command`. Then, resulting commands are generated using the product |
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of every unfolded arguments. |
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Parameters |
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---------- |
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command : list of str |
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command to unfold |
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Returns |
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------- |
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commands : list of str |
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commands obtained after unfolding `command` |
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Arguments template |
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------------------ |
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*list*: "[item1 item2 ... itemN]" |
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*range*: "[start:end]" or "[start:end:step]" |
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''' |
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text = utils.encode_escaped_characters(command) |
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# Build the master regex with all argument's regex |
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regex = "(" + "|".join(["(?P<{0}>{1})".format(name, arg.regex) for name, arg in argument_templates.items()]) + ")" |
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pos = 0 |
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arguments = [] |
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for match in re.finditer(regex, text): |
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# Add already unfolded argument |
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arguments.append([text[pos:match.start()]]) |
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# Unfold argument |
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argument_template_name, matched_text = next((k, v) for k, v in match.groupdict().items() if v is not None) |
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arguments.append(argument_templates[argument_template_name].unfold(matched_text)) |
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pos = match.end() |
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arguments.append([text[pos:]]) # Add remaining unfolded arguments |
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arguments = [map(utils.decode_escaped_characters, argvalues) for argvalues in arguments] |
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return ["".join(argvalues) for argvalues in itertools.product(*arguments)] |
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def replace_uid_tag(commands): |
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return [command.replace("{UID}", utils.generate_uid_from_string(command)) for command in commands] |
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def get_available_queues(cluster_name=utils.detect_cluster()): |
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""" Fetches all available queues on the current cluster """ |
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if cluster_name is None: |
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return {} |
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smartdispatch_dir, _ = os.path.split(smartdispatch.__file__) |
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config_dir = pjoin(smartdispatch_dir, 'config') |
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config_filename = cluster_name + ".json" |
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config_filepath = pjoin(config_dir, config_filename) |
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if not os.path.isfile(config_filepath): |
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return {} # Unknown cluster |
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queues_infos = utils.load_dict_from_json_file(config_filepath) |
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return queues_infos |
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def get_job_folders(path, jobname, create_if_needed=False): |
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""" Get all folder paths for a specific job (creating them if needed). """ |
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path_job = pjoin(path, jobname) |
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path_job_logs = pjoin(path_job, 'logs') |
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path_job_commands = pjoin(path_job, 'commands') |
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if not os.path.isdir(path_job_commands): |
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os.makedirs(path_job_commands) |
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if not os.path.isdir(path_job_logs): |
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os.makedirs(path_job_logs) |
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if not os.path.isdir(pjoin(path_job_logs, "worker")): |
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os.makedirs(pjoin(path_job_logs, "worker")) |
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if not os.path.isdir(pjoin(path_job_logs, "job")): |
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os.makedirs(pjoin(path_job_logs, "job")) |
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return path_job, path_job_logs, path_job_commands |
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def log_command_line(path_job, command_line): |
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""" Logs a command line in a job folder. |
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The command line is append to a file named 'command_line.log' that resides |
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in the given job folder. The current date and time is also added along |
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each command line logged. |
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Notes |
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----- |
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Commands save in log file might differ from sys.argv since we want to make sure |
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we can paste the command line as-is in the terminal. This means that the quotes |
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symbole " and the square brackets will be escaped. |
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""" |
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with open_with_lock(pjoin(path_job, "command_line.log"), 'a') as command_line_log: |
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command_line_log.write(t.strftime("## %Y-%m-%d %H:%M:%S ##\n")) |
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command_line = command_line.replace('"', r'\"') # Make sure we can paste the command line as-is |
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command_line = re.sub(r'(\[)([^\[\]]*\\ [^\[\]]*)(\])', r'"\1\2\3"', command_line) # Make sure we can paste the command line as-is |
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command_line_log.write(command_line + "\n\n") |
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SMART-Lab /
smartdispatch
