#!/usr/bin/env python
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__revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"

"""
Validate that we can set the TEX string to our own utility, that
the produced .dvi, .aux and .log files get removed by the -c option,
and that we can use this to wrap calls to the real latex utility.
"""

import os
import os.path
import string
import sys
import TestSCons

_python_ = TestSCons._python_

test = TestSCons.TestSCons()



test.write('mytex.py', r"""
import sys
import os
base_name = os.path.splitext(sys.argv[1])[0]
infile = open(sys.argv[1], 'rb')
dvi_file = open(base_name+'.dvi', 'wb')
aux_file = open(base_name+'.aux', 'wb')
log_file = open(base_name+'.log', 'wb')
for l in infile.readlines():
    if l[0] != '\\':
        dvi_file.write(l)
        aux_file.write(l)
        log_file.write(l)
sys.exit(0)
""")

test.write('SConstruct', """
env = Environment(TEX = r'%(_python_)s mytex.py', tools=['tex'])
env.DVI(target = 'test.dvi', source = 'test.tex')
""" % locals())

test.write('test.tex', r"""This is a test.
\end
""")

test.run(arguments = 'test.dvi')

test.must_match('test.dvi', "This is a test.\n")
test.must_match('test.aux', "This is a test.\n")
test.must_match('test.log', "This is a test.\n")

test.run(arguments = '-c test.dvi')

test.must_not_exist('test.dvi')
test.must_not_exist('test.aux')
test.must_not_exist('test.log')



tex = test.where_is('tex')

if tex:

    test.write("wrapper.py", """import os
import string
import sys
open('%s', 'wb').write("wrapper.py\\n")
os.system(string.join(sys.argv[1:], " "))
""" % string.replace(test.workpath('wrapper.out'), '\\', '\\\\'))

    test.write('SConstruct', """
import os
ENV = { 'PATH' : os.environ['PATH'] }
foo = Environment(ENV = ENV)
tex = foo.Dictionary('TEX')
bar = Environment(ENV = ENV, TEX = r'%(_python_)s wrapper.py ' + tex)
foo.DVI(target = 'foo.dvi', source = 'foo.tex')
foo.DVI(target = 'foo-latex.dvi', source = 'foo-latex.tex')
bar.DVI(target = 'bar', source = 'bar.tex')
bar.DVI(target = 'bar-latex', source = 'bar-latex.tex')
foo.DVI('rerun.tex')
foo.DVI('bibtex-test.tex')
""" % locals())

    tex = r"""
This is the %s TeX file.
\end
"""

    latex = r"""
\document%s{letter}
\begin{document}
This is the %s LaTeX file.
\end{document}
"""

    rerun = r"""
\documentclass{article}

\begin{document}

\LaTeX\ will need to run twice on this document to get a reference to section
\ref{sec}.

\section{Next section}
\label{sec}

\end{document}
"""

    bibtex = r"""
\documentclass{article}

\begin{document}

Run \texttt{latex}, then \texttt{bibtex}, then \texttt{latex} twice again \cite{lamport}.

\bibliographystyle{plain}
\bibliography{test}

\end{document}
"""

    bib = r"""
@Book{lamport,
  author =      {L. Lamport},
  title =       {{\LaTeX: A} Document Preparation System},
  publisher =   {Addison-Wesley},
  year =        1994
}
"""

    test.write('foo.tex', tex % 'foo.tex')
    test.write('bar.tex', tex % 'bar.tex')
    test.write('foo-latex.tex', latex % ('style', 'foo-latex.tex'))
    test.write('bar-latex.tex', latex % ('class', 'bar-latex.tex'))
    test.write('rerun.tex', rerun)
    test.write('bibtex-test.tex', bibtex)
    test.write('test.bib', bib)

    test.run(arguments = 'foo.dvi foo-latex.dvi', stderr = None)
    test.must_not_exist('wrapper.out')
    test.must_exist('foo.dvi')
    test.must_exist('foo-latex.dvi')

    test.run(arguments = 'bar.dvi bar-latex.dvi', stderr = None)
    test.must_exist('wrapper.out')
    test.must_exist('bar.dvi')
    test.must_exist('bar-latex.dvi')

    test.run(stderr = None)
    output_lines = string.split(test.stdout(), '\n')

    reruns = filter(lambda x: string.find(x, 'latex rerun.tex') != -1, output_lines)
    if len(reruns) != 2:
        print "Expected 2 latex calls, got %s:" % len(reruns)
        print string.join(reruns, '\n')
        test.fail_test()

    bibtex = filter(lambda x: string.find(x, 'bibtex bibtex-test') != -1, output_lines)
    if len(bibtex) != 1:
        print "Expected 1 bibtex call, got %s:" % len(bibtex)
        print string.join(bibtex, '\n')
        test.fail_test()

test.pass_test()