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Source

SCons / test / sconsign / script / Signatures.py

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

"""
Verify that the sconsign script works when using a .sconsign file in
each subdirectory (SConsignFile(None)) written with the non-default
value of Decider('timestamp-newer').

This used to test the non-default combination of
SourceSignatures('timestamp') with TargetSignatures('content').
"""

import TestSCons
import TestSConsign

test = TestSConsign.TestSConsign(match = TestSConsign.match_re)

# Note:  We don't use os.path.join() representations of the file names
# in the expected output because paths in the .sconsign files are
# canonicalized to use / as the separator.

sub1_hello_c    = 'sub1/hello.c'
sub1_hello_obj  = 'sub1/hello.obj'

test.subdir('sub1', 'sub2')

# Because this test sets SConsignFile(None), we execute our fake
# scripts directly, not by feeding them to the Python executable.
# That is, we chmod 0755 and us a "#!/usr/bin/env python" first
# line for POSIX systems, and add .PY to the %PATHEXT% variable on
# Windows.  If we didn't do this, then running this script with
# suitable prileveges would create a .sconsign file in the directory
# where the Python executable lives.  This can happen out of the
# box on Mac OS X, with the result that the .sconsign statefulness
# can mess up other tests.

fake_cc_py = test.workpath('fake_cc.py')
fake_link_py = test.workpath('fake_link.py')

test.write(fake_cc_py, r"""#!/usr/bin/env python
import os
import re
import sys

path = sys.argv[1].split()
output = open(sys.argv[2], 'wb')
input = open(sys.argv[3], 'rb')

output.write('fake_cc.py:  %s\n' % sys.argv)

def find_file(f):
    for dir in path:
        p = dir + os.sep + f
        if os.path.exists(p):
            return open(p, 'rb')
    return None

def process(infp, outfp):
    for line in infp.readlines():
        m = re.match('#include <(.*)>', line)
        if m:
            file = m.group(1)
            process(find_file(file), outfp)
        else:
            outfp.write(line)

process(input, output)

sys.exit(0)
""")

test.write(fake_link_py, r"""#!/usr/bin/env python
import sys

output = open(sys.argv[1], 'wb')
input = open(sys.argv[2], 'rb')

output.write('fake_link.py:  %s\n' % sys.argv)

output.write(input.read())

sys.exit(0)
""")

test.chmod(fake_cc_py, 0755)
test.chmod(fake_link_py, 0755)

test.write('SConstruct', """
SConsignFile(None)
Decider('timestamp-newer')
env1 = Environment(PROGSUFFIX = '.exe',
                   OBJSUFFIX = '.obj',
                   # Specify the command lines with lists-of-lists so
                   # finding the implicit dependencies works even with
                   # spaces in the fake_*_py path names.
                   CCCOM = [[r'%(fake_cc_py)s', 'sub2', '$TARGET', '$SOURCE']],
                   LINKCOM = [[r'%(fake_link_py)s', '$TARGET', '$SOURCE']])
env1.PrependENVPath('PATHEXT', '.PY')
env1.Program('sub1/hello.c')
env2 = env1.Clone(CPPPATH = ['sub2'])
env2.Program('sub2/hello.c')
""" % locals())

test.write(['sub1', 'hello.c'], r"""\
sub1/hello.c
""")

test.write(['sub2', 'hello.c'], r"""\
#include <inc1.h>
#include <inc2.h>
sub2/hello.c
""")

test.write(['sub2', 'inc1.h'], r"""\
#define STRING1 "inc1.h"
""")

test.write(['sub2', 'inc2.h'], r"""\
#define STRING2 "inc2.h"
""")

test.sleep()

test.run(arguments = '. --max-drift=1')

sig_re = r'[0-9a-fA-F]{32}'
date_re = r'\S+ \S+ [ \d]\d \d\d:\d\d:\d\d \d\d\d\d'

test.run_sconsign(arguments = "-e hello.exe -e hello.obj sub1/.sconsign",
         stdout = r"""hello.exe: %(sig_re)s \d+ \d+
        %(sub1_hello_obj)s: %(sig_re)s \d+ \d+
        fake_link\.py: None \d+ \d+
        %(sig_re)s \[.*\]
hello.obj: %(sig_re)s \d+ \d+
        %(sub1_hello_c)s: None \d+ \d+
        fake_cc\.py: None \d+ \d+
        %(sig_re)s \[.*\]
""" % locals())

test.run_sconsign(arguments = "-e hello.exe -e hello.obj -r sub1/.sconsign",
         stdout = r"""hello.exe: %(sig_re)s '%(date_re)s' \d+
        %(sub1_hello_obj)s: %(sig_re)s '%(date_re)s' \d+
        fake_link\.py: None '%(date_re)s' \d+
        %(sig_re)s \[.*\]
hello.obj: %(sig_re)s '%(date_re)s' \d+
        %(sub1_hello_c)s: None '%(date_re)s' \d+
        fake_cc\.py: None '%(date_re)s' \d+
        %(sig_re)s \[.*\]
""" % locals())

test.pass_test()

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