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Diffstat (limited to 'extras/run_do_script.py')
| -rw-r--r-- | extras/run_do_script.py | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/extras/run_do_script.py b/extras/run_do_script.py new file mode 100644 index 0000000..f3c5812 --- /dev/null +++ b/extras/run_do_script.py @@ -0,0 +1,139 @@ +#!/usr/bin/env python +# encoding: utf-8 +# Hans-Martin von Gaudecker, 2012 + +""" +Run a Stata do-script in the directory specified by **ctx.bldnode**. The +first and only argument will be the name of the do-script (no extension), +which can be accessed inside the do-script by the local macro `1'. Useful +for keeping a log file. + +The tool uses the log file that is automatically kept by Stata only +for error-catching purposes, it will be destroyed if the task finished +without error. In case of an error in **some_script.do**, you can inspect +it as **some_script.log** in the **ctx.bldnode** directory. + +Note that Stata will not return an error code if it exits abnormally -- +catching errors relies on parsing the log file mentioned before. Should +the parser behave incorrectly please send an email to hmgaudecker [at] gmail. + +**WARNING** + + The tool will not work if multiple do-scripts of the same name---but in + different directories---are run at the same time! Avoid this situation. + +Usage:: + + ctx(features='run_do_script', + source='some_script.do', + target=['some_table.tex', 'some_figure.eps'], + deps='some_data.csv') +""" + + +import os, re, sys +from waflib import Task, TaskGen, Logs + +if sys.platform == 'darwin': + STATA_COMMANDS = ['Stata64MP', 'StataMP', + 'Stata64SE', 'StataSE', + 'Stata64', 'Stata'] + STATAFLAGS = '-e -q do' + STATAENCODING = 'MacRoman' +elif sys.platform.startswith('linux'): + STATA_COMMANDS = ['stata-mp', 'stata-se', 'stata'] + STATAFLAGS = '-b -q do' + # Not sure whether this is correct... + STATAENCODING = 'Latin-1' +elif sys.platform.lower().startswith('win'): + STATA_COMMANDS = ['StataMP-64', 'StataMP-ia', + 'StataMP', 'StataSE-64', + 'StataSE-ia', 'StataSE', + 'Stata-64', 'Stata-ia', + 'Stata.e', 'WMPSTATA', + 'WSESTATA', 'WSTATA'] + STATAFLAGS = '/e do' + STATAENCODING = 'Latin-1' +else: + raise Exception("Unknown sys.platform: %s " % sys.platform) + +def configure(ctx): + ctx.find_program(STATA_COMMANDS, var='STATACMD', errmsg="""\n +No Stata executable found!\n\n +If Stata is needed:\n + 1) Check the settings of your system path. + 2) Note we are looking for Stata executables called: %s + If yours has a different name, please report to hmgaudecker [at] gmail\n +Else:\n + Do not load the 'run_do_script' tool in the main wscript.\n\n""" % STATA_COMMANDS) + ctx.env.STATAFLAGS = STATAFLAGS + ctx.env.STATAENCODING = STATAENCODING + +class run_do_script_base(Task.Task): + """Run a Stata do-script from the bldnode directory.""" + run_str = '"${STATACMD}" ${STATAFLAGS} "${SRC[0].abspath()}" "${DOFILETRUNK}"' + shell = True + +class run_do_script(run_do_script_base): + """Use the log file automatically kept by Stata for error-catching. + Erase it if the task finished without error. If not, it will show + up as do_script.log in the bldnode directory. + """ + def run(self): + run_do_script_base.run(self) + ret, log_tail = self.check_erase_log_file() + if ret: + Logs.error("""Running Stata on %r failed with code %r.\n\nCheck the log file %s, last 10 lines\n\n%s\n\n\n""", + self.inputs[0], ret, self.env.LOGFILEPATH, log_tail) + return ret + + def check_erase_log_file(self): + """Parse Stata's default log file and erase it if everything okay. + + Parser is based on Brendan Halpin's shell script found here: + http://teaching.sociology.ul.ie/bhalpin/wordpress/?p=122 + """ + + if sys.version_info.major >= 3: + kwargs = {'file': self.env.LOGFILEPATH, 'mode': 'r', 'encoding': self.env.STATAENCODING} + else: + kwargs = {'name': self.env.LOGFILEPATH, 'mode': 'r'} + with open(**kwargs) as log: + log_tail = log.readlines()[-10:] + for line in log_tail: + error_found = re.match("r\(([0-9]+)\)", line) + if error_found: + return error_found.group(1), ''.join(log_tail) + else: + pass + # Only end up here if the parser did not identify an error. + os.remove(self.env.LOGFILEPATH) + return None, None + + +@TaskGen.feature('run_do_script') +@TaskGen.before_method('process_source') +def apply_run_do_script(tg): + """Task generator customising the options etc. to call Stata in batch + mode for running a do-script. + """ + + # Convert sources and targets to nodes + src_node = tg.path.find_resource(tg.source) + tgt_nodes = [tg.path.find_or_declare(t) for t in tg.to_list(tg.target)] + + tsk = tg.create_task('run_do_script', src=src_node, tgt=tgt_nodes) + tsk.env.DOFILETRUNK = os.path.splitext(src_node.name)[0] + tsk.env.LOGFILEPATH = os.path.join(tg.bld.bldnode.abspath(), '%s.log' % (tsk.env.DOFILETRUNK)) + + # dependencies (if the attribute 'deps' changes, trigger a recompilation) + for x in tg.to_list(getattr(tg, 'deps', [])): + node = tg.path.find_resource(x) + if not node: + tg.bld.fatal('Could not find dependency %r for running %r' % (x, src_node.abspath())) + tsk.dep_nodes.append(node) + Logs.debug('deps: found dependencies %r for running %r', tsk.dep_nodes, src_node.abspath()) + + # Bypass the execution of process_source by setting the source to an empty list + tg.source = [] + |