123 lines
4.4 KiB
Python
123 lines
4.4 KiB
Python
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#! /usr/bin/env python3
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# template.py (and other filenames)
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# By Max Eliaser (max.eliaser@intel.com)
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# Copyright (c) 2014 Intel Corp.
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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# THE SOFTWARE.
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# This program acts like a dummy version of the texinfo utilities, creating
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# the right output files but leaving them blank. It will parse out the name
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# of the executable from argv[0] and emulate the corresponding program, so
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# multiple copies of this script will exist under different names.
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import sys, os
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olong = "--output="
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Elong = "--macro-expand="
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this_binary = sys.argv[0].split ("/")[-1]
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# To be outputted if functionality that hasn't been stubbed yet is invoked.
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stub_msg = """
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This stand-in version of %s is not yet fully capable of emulating the real
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version from the GNU texinfo suite. If you see this message, file a bug report
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with details on the recipe that failed.
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""" % this_binary
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# Autotools setups query the version, so this is actually necessary. Some of
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# them (lookin' at you, glibc) actually look for the substring "GNU texinfo,"
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# so we put that substring in there without actually telling a lie.
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version_str = """ %s (fake texinfo, emulating GNU texinfo) 5.2
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Super amazing version which is totally not fake in any way whatsoever.
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Copyright (C) 2014 Intel Corp. Distributed under the terms of the MIT
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license.
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""" % this_binary
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simple_binaries = "pod2texi texi2dvi pdftexi2dvi texindex texi2pdf \
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txixml2texi install-info ginstall-info \
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update-info-dir".split ()
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# These utilities use a slightly different set of options and flags.
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complex_binaries = "makeinfo texi2any".split ()
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valid_binaries = simple_binaries + complex_binaries
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# For generating blank output files.
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def touch_file (path):
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f = open (path, "w")
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f.close ()
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assert this_binary in valid_binaries, \
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this_binary + " is not one of " + ', '.join (valid_binaries)
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if "--version" in sys.argv:
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print(version_str)
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sys.exit (0)
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# For debugging
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log_interceptions = False
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if log_interceptions:
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f = open ("/tmp/intercepted_" + this_binary, "a")
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f.write (' '.join ([this_binary] + sys.argv[1:]) + '\n')
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f.close ()
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# Look through the options and flags, and if necessary, touch any output
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# files.
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arg_idx = 1
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while arg_idx < len (sys.argv):
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arg = sys.argv [arg_idx]
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if arg == "--":
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break
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# Something like -I . can result in a need for this (specifically the .)
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elif len (arg) < 2:
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pass
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# Check if -o or --output is specified. These can be used at most once.
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elif arg[0] == '-' and arg[1] != '-' and arg[len (arg) - 1] == 'o':
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touch_file (sys.argv[arg_idx + 1])
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sys.exit (0)
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elif arg.startswith (olong):
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touch_file (arg.split ("=")[1])
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sys.exit (0)
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# Check for functionality that isn't implemented yet.
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else:
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assert arg[0] != '-' or arg[1] == '-' or 'E' not in arg or \
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this_binary in simple_binaries, \
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"-E option not yet supported" + stub_msg
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assert not arg.startswith (Elong), \
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Elong[:-1] + " option not yet supported" + stub_msg
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arg_idx += 1
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# The -o/--output option overrides the default. For makeinfo and texi2any,
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# that default is to look for a @setfilename command in the input file.
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# Otherwise, printing nothing to stdout and then exiting should suffice.
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assert this_binary in simple_binaries, \
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"Don't know how to get default output file name from input file!" + \
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stub_msg
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