From ed36aecf5093c13df92ad8e0eb3608ee81db5b83 Mon Sep 17 00:00:00 2001
From: "W. Trevor King" <wking@drexel.edu>
Date: Tue, 2 Nov 2010 15:45:00 -0400
Subject: [PATCH] Better pysawsim.sawsim.SAWSIM detection via
 distutils.spawn.find_executable().

---
 pysawsim/parameter_error.py  |  3 +--
 pysawsim/parameter_scan.py   |  5 ++---
 pysawsim/sawsim.py           | 12 ++++++++----
 pysawsim/sawsim_histogram.py |  2 +-
 4 files changed, 12 insertions(+), 10 deletions(-)

diff --git a/pysawsim/parameter_error.py b/pysawsim/parameter_error.py
index ee915b2..b75b310 100644
--- a/pysawsim/parameter_error.py
+++ b/pysawsim/parameter_error.py
@@ -80,8 +80,7 @@ def main(argv=None):
     >>> f = tempfile.NamedTemporaryFile()
     >>> f.write(EXAMPLE_HISTOGRAM_FILE_CONTENTS)
     >>> f.flush()
-    >>> main(['-s', 'bin/sawsim',
-    ...       '-r', '[1e-6,1e-4,3]', '--log',
+    >>> main(['-r', '[1e-6,1e-4,3]', '--log',
     ...       '-N', '4', '-t', '0.8',
     ...       f.name])
     ... # doctest: +ELLIPSIS, +NORMALIZE_WHITESPACE, +REPORT_UDIFF
diff --git a/pysawsim/parameter_scan.py b/pysawsim/parameter_scan.py
index ff34a44..3d6e99b 100644
--- a/pysawsim/parameter_scan.py
+++ b/pysawsim/parameter_scan.py
@@ -157,7 +157,7 @@ class HistogramMatcher (object):
     ...     '-s "unfolded,wlc,{0.39e-9,28e-9}" '
     ...     '-k "folded,unfolded,bell,{%g,%g}" -q folded')
     >>> m = ThreadManager()
-    >>> sr = SawsimRunner(sawsim='bin/sawsim', manager=m)
+    >>> sr = SawsimRunner(manager=m)
     >>> hm = HistogramMatcher(histogram_stream, param_format_string, sr, N=3)
     >>> hm.plot([[1e-5,1e-3,3],[0.1e-9,1e-9,3]], logx=True, logy=False)
     >>> m.teardown()
@@ -343,8 +343,7 @@ def main(argv=None):
     >>> f = tempfile.NamedTemporaryFile()
     >>> f.write(EXAMPLE_HISTOGRAM_FILE_CONTENTS)
     >>> f.flush()
-    >>> main(['-s', 'bin/sawsim',
-    ...       '-r', '[1e-5,1e-3,3],[0.1e-9,1e-9,3]',
+    >>> main(['-r', '[1e-5,1e-3,3],[0.1e-9,1e-9,3]',
     ...       '-N', '2',
     ...       f.name])
     >>> f.close()
diff --git a/pysawsim/sawsim.py b/pysawsim/sawsim.py
index 4f34da8..0f85869 100644
--- a/pysawsim/sawsim.py
+++ b/pysawsim/sawsim.py
@@ -27,6 +27,7 @@ try:
     from collections import namedtuple
 except ImportError:  # work around Python < 2.6
     from ._collections import namedtuple
+from distutils.spawn import find_executable
 import hashlib
 from optparse import Option
 import os
@@ -43,7 +44,10 @@ _multiprocess_can_split_ = True
 """Allow nosetests to split tests between processes.
 """
 
-SAWSIM = 'sawsim'  # os.path.expand(os.path.join('~', 'bin', 'sawsim'))
+SAWSIM = find_executable('sawsim')
+if SAWSIM == None:
+    SAWSIM = os.path.join('bin', 'sawsim')
+
 CACHE_DIR = os.path.expanduser(os.path.join('~', '.sawsim-cache'))
 DEFAULT_PARAM_STRING = (
     '-s cantilever,hooke,0.05 -N1 '
@@ -62,7 +66,7 @@ Event = namedtuple(
 class SawsimRunner (object):
     """
     >>> m = get_manager()()
-    >>> sr = SawsimRunner(sawsim='bin/sawsim', manager=m)
+    >>> sr = SawsimRunner(manager=m)
     >>> for run in sr(param_string=DEFAULT_PARAM_STRING, N=2):
     ...     print 'New run'
     ...     for i,event in enumerate(run):
@@ -272,11 +276,11 @@ def main(argv=None):
     Options:
       -h, --help            show this help message and exit
       -s PATH, --sawsim=PATH
-                            Set sawsim binary (sawsim).
+                            Set sawsim binary (...sawsim).
       ...
     >>> print e
     0
-    >>> main(['--sawsim', 'bin/sawsim', '-N', '2'])
+    >>> main(['-N', '2'])
     ... # doctest: +ELLIPSIS, +NORMALIZE_WHITESPACE
     #Force (N)  Initial state  Final state
     ...         folded         unfolded
diff --git a/pysawsim/sawsim_histogram.py b/pysawsim/sawsim_histogram.py
index 969ad46..14b94ed 100644
--- a/pysawsim/sawsim_histogram.py
+++ b/pysawsim/sawsim_histogram.py
@@ -50,7 +50,7 @@ def sawsim_histogram(sawsim_runner, param_string, N=400, bin_edges=None):
 
 def main(argv=None):
     """
-    >>> main(['--sawsim', 'bin/sawsim', '-N', '2'])
+    >>> main(['-N', '2'])
     ... # doctest: +ELLIPSIS, +NORMALIZE_WHITESPACE
     #Force (N)  Unfolding events
     ...
-- 
2.26.2