898 lines
25 KiB
Bash
Executable File
898 lines
25 KiB
Bash
Executable File
#!/bin/bash
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# $Id$
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# Acknowledgment:
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# The following code is a no-modified version (except for this comment,
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# the `Id' comment, and the inline_doc fragment) of an original work written by
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# Ken Moffat and is included here with his permission.
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#
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# FARCE: Farce Assists Rebuild Comparison Evaluation ;)
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#
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# to answer the question "can it rebuild itself?"
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#
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# We expect four arguments - first directory path, filelist
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# containing the files in this directory which we wish to compare,
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# second directory path, filelist for second directory.
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#
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# Yes, we could just compare everything in each tree, but the
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# filelist script knows about files it can reasonably ignore,
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# and this also allows us to build a sytem, boot it and get a
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# list of files, build a full desktop environment, and only then
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# build and boot the "can it build itself" test system and get
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# _its_ filelist.
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#
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# What this script aims to do:
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# ____________________________
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#
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# First, report files not in both builds.
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#
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# Then, confirm symlinks point to same targets.
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#
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# After that, compare individual files -
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# if different, run the file name through 'expected'
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# to pick out files that are unlikely to match (logs,
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# pids, fstab [assumes '/' is a different device each time],
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# count these as 'expected'.
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#
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# For whatever is left, check the file type - ar archives
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# have their members extraced and compared (every member has
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# a timestamp), gzipped files are compared beyond their
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# timestamp, binaries, at least those using shared libs or
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# which are shared objects, are copied and subjected to
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# --strip-debug. If files match at this stage, count them as
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# 'accepted'.
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#
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# As a last step for any file that doesn't match, copy it
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# through some perl regexps to "process" it (convert any
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# date, time, kernel-version information from standard formats
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# into tokens, then see if the tokensi match.
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#
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# For details of the regexps, see the tokenize function.
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# Those files that match after this are also counted as
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# 'accepted'. Note that I don't always start from the kernel
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# version that I'm going to build, so this copes with e.g. perl
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# files that hardcode the kernel version.
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#
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# We now have files that don't match. A few of these seem to be
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# common to all builds - some (members of) c++ libraries or ar
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# archives, a few programs which perhaps use some sort of c++ code).
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# The file name # is passed to the 'failure' function - these
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# recognized filenames are labelled as 'predictable FAIL:',
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# anything else is labelled as 'unexpected FAIL:'.
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#
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# output:
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# stderr - files only in one of the builds, failure messages,
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# and totals.
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#
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# farce-results - more details, including which files were treated
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# as expected differences, files where neither copy could be read,
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# files treated as accepted, with the reason (and member for ar
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# archives). This data is typically up to 100 characters wide -
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# sometimes it's a bit more, but it doesn't wrap too badly in a
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# 100 character xterm.
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#
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# farce-extras - diffs for the files, or members, that didn't
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# match. This file is to establish new regexps for picking up
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# date/time/kernel-version formats.
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#
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# farce-identical - the names of the files which are identical
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#
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# farce-substitutions - whenever using tokenizeanddiff results in a
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# difference being accepted, for both versions diff the before and
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# after versions to show what got changed. If the file is a binary,
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# the output may still be hard to read. Note that I _know_ glibc
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# version strings pass one of the regexps looking for a kernel version
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# - since I expect you to use the same version of glibc for each
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# build, this is not a problem.
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#
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# farce-differ - the names of the files which could not be treated
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# as matching (whether or not I regard the failure as predictable)
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# for possible input to ICA processing.
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#
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# Copyright (C) 2005, 2006 Ken Moffat <ken@linuxfromscratch.org>
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#
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# All rights reserved.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or (at
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# your option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
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# NON INFRINGEMENT. See the GNU General Public License for more
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# details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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#
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: <<inline_doc
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desc: do farce analisys and report
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usage: farce -directory $FARCELOGDIR/dir path1 list1 path2 list2
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input vars: $1 farce log dir for this comparation
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$2 full path to previous iteration
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$3 full path to filelist for previos iteration
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$4 full path to current iteration
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$5 full path to filelist for current iteration
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externals: --
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modifies: --
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returns: --
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on error:
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on success:
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inline_doc
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VERSION="002"
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# variables for output files
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RESULT=farce-results
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EXTRAS=farce-extras
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IDENTICAL=farce-identical
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SUBS=farce-substitutions
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DIFFER=farce-differ
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# documenting the variables
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# C1, C2 temp files to hold disassembled code
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# D1, D2 temp directories for extracting member of ar archive
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# DIFF temp file for diffing the filelists
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# F1, F2 temp files for tokenizeanddiff
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# FTYPE obsolete, commented out
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# M1, M2 temp files to hold members of an ar archive
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# MEMBERS temp file to list members of ar archive
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# OP1, OP2 the original $PWD, needed when extracting members of ar
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# archives
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# P1, P2 paths to first and second build
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# S1, S2 temp files for shared objects
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# functions
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function dohelp() {
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echo "`basename $0`: compare trees of files from a build"
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echo "and lists of the files they contained"
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echo ""
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echo "`basename $0` [ -help | -version ] || path1 list1 path2 list2"
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}
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function emessage() {
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# write a string to both stderr and $RESULT
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echo "$@" >&2
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echo "$@" >&5
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}
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function expected() {
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# if we expect it to differ because of its name,
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# allow it and report, return true ; else return false
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case $1 in
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/boot/grub/menu.lst)
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# just in case somebody puts this into the main filesystem
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true;;
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/etc/aliases.db)
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# some sort of database for postfix, not parsable
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true;;
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/etc/blkid.tab)
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# includes dev name for rootfs
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true;;
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/etc/fstab)
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# fstab, e.g. ' / ' will differ
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true;;
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/etc/group*)
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true;;
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/etc/hosts)
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# with dhcp client, I add current ip address to this in a hook
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true;;
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/etc/ld.so.*)
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# .conf and .cache can vary,
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# particularly if one system has a full build when I run this
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true;;
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/etc/lilo.conf|/etc/yaboot.conf)
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# bootloader control, I assume grub will all be on a separate
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true;;
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/etc/mtab)
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# at a minimum, different '/'
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true;;
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/etc/ntp.drift)
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true;;
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/etc/passwd*)
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true;;
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/etc/shadow*)
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true;;
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/etc/ssh/*key|/etc/ssh/*pub)
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# openssh keys
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true;;
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/misc/*)
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# where I put buildscripts (which mostly won't change)
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# and stamps containing name/time/space which will differ in the times
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true;;
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/root/*)
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# expect .bash_history etc to differ - if we can read them
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true;;
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/usr/bin/lynx)
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# part of my inital builds, I guess this uses anonymous namespaces
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true;;
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/usr/include/c++/*/*/bits/stdc++.h.gch/*)
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# precompiled headers
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true;;
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/usr/lib*/libstdc++.a|/usr/lib*/libstdc++.so*|/usr/lib*/libsupc++.a)
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# probably, anonymous namespaces
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# libstdc++.a, libstdc++.so.n.n.n, libsupc++.a
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true;;
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/usr/share/info/dir)
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# if one system has had extra stuff built, this will likely be bigger
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true;;
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/usr/share/man/whatis)
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# if one system has had extra stuff built, this will likely be bigger
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true;;
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/var/lib/locate/locatedb)
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# if one system has had extra stuff built, this will likely be bigger
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true;;
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/var/lib/nfs/*)
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# allow nfs bookkeeping
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true;;
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/var/log/*)
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true;;
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/var/run/utmp)
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true;;
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/var/spool/fcron*)
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true;;
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/var/state/*)
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# allow dhcp leases
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true;;
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/var/tmp/random-seed)
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true;;
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# following start with wildcards
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*Image*|*.PPCBoot*|*vmlinuz*|*lfskernel*)
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# compressed kernels, sometimes just building at a different
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# date/time is enough to change the length of them, because the
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# long format date and time is part of the compressed data
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true;;
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*pid*)
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# pids, including e.g. /var/spool/postfix/pid/*
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true;;
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*)
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# nothing else is expected to be different
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false;;
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esac
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if [ $? -eq 0 ]; then
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message "expected difference in $1"
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let expected=$expected+1
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case $TYPE in
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AR)
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let EXPAR=$EXPAR+1
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;;
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ELF)
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let EXPELF=$EXPELF+1
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;;
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UNK)
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let EXPUNK=$EXPUNK+1
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;;
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# so far, no other valid types, so don't accumulate them
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*)
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emessage "internal error, expected difference for $1 of type $TYPE not allowed"
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exit 2
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;;
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esac
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true
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else
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false
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fi
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}
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function failure() {
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# first parm is filename or token
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# second parm is the error message
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# update the appropriate total
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# and write to both stderr and the results
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# by using emessage
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let different=$different+1
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case $TYPE in
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AR)
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let DIFAR=$DIFAR+1
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;;
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ELF)
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let DIFELF=$DIFELF+1
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;;
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GZ)
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let DIFGZ=$DIFGZ+1
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;;
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SYM)
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let DIFSYM=$DIFSYM+1
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;;
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UNK)
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let DIFUNK=$DIFUNK+1
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;;
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*)
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emessage "internal error in failure() for TYPE $TYPE"
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exit 2
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;;
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esac
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test -f ${P1}$1 && echo $1 >&9
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emessage "FAIL: $2"
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}
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function fatal() {
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# unrecoverable error
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echo $*
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exit 1
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}
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function filetype() {
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TYPE=`file ${P1}${FILE}`
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case $TYPE in
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*'current ar archive'*)
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let TOTAR=$TOTAR+1
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TYPE=AR
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;;
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*' ELF '*)
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let TOTELF=$TOTELF+1
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TYPE=ELF
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;;
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*'gzip compressed data'*)
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let TOTGZ=$TOTGZ+1
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TYPE=GZ
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;;
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*)
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let TOTUNK=$TOTUNK+1
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TYPE=UNK
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;;
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esac
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}
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function message() {
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# write a string to $RESULT
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echo $* >&5
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}
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function onlyone() {
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#report files only in one build
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# text should go to both stderr and the results,
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# but blank lines only go to the results
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if [ $1 == '<' ]; then
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emessage "File(s) only in the first build"
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else
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emessage "File(s) only in the second build"
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fi
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message ""
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FILES=`cat $DIFF | grep "^$1" | cut -d ' ' -f 2`
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for F in $FILES; do
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emessage $F
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let only=$only+1
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done
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message ""
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}
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# 'test' functions are called with three arguments:
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# the two pathes and the filename
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# - we know the file is of this type, so see if we
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# can get it to match by reasonalbe means.
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# if not, treat it as different.
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#
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# NB if pathes are absolute, we need to prefix them
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# with the original $PWD to access the .a files
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#
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function testar() {
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# ar archives include timestamps for the members,
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# but diff doesn't show file timestamps unless the data differs
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# put out a message to help locate which archive any messages
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# about the members refer to.
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# try just stripping them U1,2 undebuggable
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U1=`mktemp` || fatal "cannot create a temporary file"
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U2=`mktemp` || fatal "cannot create a temporary file"
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cp ${1}${3} $U1
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cp ${2}${3} $U2
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strip --strip-debug $U1
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strip --strip-debug $U2
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cmp -s $U1 $U2
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rm $U1 $U2
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if [ $? -eq 0 ]; then
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let accepted=$accepted+1
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let ACCAR=$ACCAR+1
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message "archive $3 matches after strip --strip-debug"
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return
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fi
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# rest of this function retained primarily for pathologically bad builds
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# put out a message in the log to help identify which archive has issues.
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message "examining ar archive $3"
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D1=`mktemp -d` || fatal "cannot create a temporary directory"
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D2=`mktemp -d` || fatal "cannot create a temporary directory"
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cd $D1
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ar -x ${OP1}${1}${3}
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cd $D2
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ar -x ${OP2}${2}${3}
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cd
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# diff the members - true means they match
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diff -Na $D1 $D2 >/dev/null
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if [ $? -eq 0 ]; then
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message "accept: $3 after diffing the members"
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let accepted=$accepted+1
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let ACCAR=$ACCAR+1
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else
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# process individual members to eliminate date/time/kernel-version
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# first, check the members are the same
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M1=`mktemp` || fatal "cannot create a temporary file"
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M2=`mktemp` || fatal "cannot create a temporary file"
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cd $D1
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MEMBERS=
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for F in *; do
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MEMBERS="$MEMBERS $F"
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done
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cd
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echo $MEMBERS | sort >$M1
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cd $D2
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MEMBERS=
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for F in *; do
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MEMBERS="$MEMBERS $F"
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done
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cd
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echo $MEMBERS | sort >$M2
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cmp -s $M1 $M2
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if [ $? -ne 0 ]; then
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# oh dear, different members
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echo "list of members differs for archive $3" >&6
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diff $M1 $M2 >&6
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failure $3 "$3 list of members differs"
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else
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# members (names) are same,
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# process each one
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STATUS=0
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for M in $MEMBERS; do
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#avoid firing up perl on matching members
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cmp -s $D1/$M $D2/$M
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if [ $? -ne 0 ]; then
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tokenizeanddiff $D1/$M $D2/$M $FILE:$M
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if [ $? -eq 0 ]; then
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message "member $M matches after processing"
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else
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message "member $M DIFFERS after processing"
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STATUS=1
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fi
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fi
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done
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if [ $STATUS -eq 0 ]; then
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let accepted=$accepted+1
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let ACCAR=$ACCAR+1
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else
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let different=$different+1
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let DIFAR=$DIFAR+1
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echo $3 >&9
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emessage "FAIL: in $3"
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fi
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fi
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rm $M1 $M2
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fi
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rm -rf $D1 $D2
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}
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function testgzip() {
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# bytes 4,5,6,7 are the timestamp, so ignore these
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cmp -s -i 8 ${1}${3} ${2}${3}
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if [ $? -eq 0 ]; then
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message "accept: $3 after ignoring gzip timestamp"
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let accepted=$accepted+1
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let ACCGZ=$ACCGZ+1
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else
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failure $3 " $3 even after ignoring gzip timestamp"
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fi
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}
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function testso() {
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# shared object - first try stripping it
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# in fact, this now handles ALL ELF files
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S1=`mktemp` || fatal "cannot create a temporary file"
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S2=`mktemp` || fatal "cannot create a temporary file"
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cp ${1}${3} $S1
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strip --strip-debug $S1
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cp ${2}${3} $S2
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strip --strip-debug $S2
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cmp -s $S1 $S2
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if [ $? -eq 0 ]; then
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message "accept: $3 after --strip-debug"
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let accepted=$accepted+1
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let ACCELF=$ACCELF+1
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else
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tokenizeanddiff $S1 $S2 $3
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if [ $? -ne 0 ]; then
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failure $3 " $3 differs after stripping and processing"
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else
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message "accept: $3 after --strip-debug and processing"
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let accepted=$accepted+1
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let ACCELF=$ACCELF+1
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fi
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fi
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rm $S1 $S2
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}
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function tokenize() {
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# use regexes to replace date/time/kernel-version text
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# with tokens which may allow files to match even though
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# they have hardcoded date/time/kernel-version.
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# arguments are file to process, and where to put it.
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# these regexes are somewhat long, and the order they
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# are applied in is important (to stop short ones being
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# used when a longer version would match).
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# KV00 linux version date (e.g. as in the kernel itself)
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# allow 2 or 3 groups of three alphas here - optional smp, with day, mon
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# KV01 kernel version, including possible cpu details (that is for cdda2wav)
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# KV02 just the version, in quotes e.g. "2.6.12.6" or '2.6.13', for perl stuff
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# except that "|' gives me grif, so try a boundary
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# also, it might need local version on the end, I really want
|
|
# quote2.\d+.\d+.{0,32}quote - it is the quotes that don't work.
|
|
# DT00 Day Mon .d+ hh:mm:ss TZN CCYY variations include non-caps and 'mon d'
|
|
# DT01 Mon .d+ CCYY hh:mm:ss
|
|
# DT02 hh:mm:ss Mon .d CCYY
|
|
# DT03 Mon .d CCYY
|
|
# DT04 Day Mon { ,d}d hh:mm:ss CCYY - for groff example postscript files
|
|
# (somewhat similar to DT00, but ' d' or ' dd' for day of month and no TZN )
|
|
# DT05 hh:mm:ss
|
|
# DT06 ISO date using space as separator
|
|
# DT07 ISO date using dash as separator
|
|
# DT08 ISO date using slash as separator
|
|
# DT09 fullmonth (capitalised), day number, comma, 4-digit year (groff 1.18.1 ps)
|
|
# DT10 dd, fullmonth (capitalised), 4-digit year (groff 1.18.1 manpages)
|
|
# DT11 '(xample comma space digit(s) backslash ) in groff memef.ps which is
|
|
# quite clearly the day of the month when it was compiled, preceded by 'example'
|
|
# with something weird between the e and the x.
|
|
|
|
if [ $# -ne 2 ]; then
|
|
fatal "tokenizing called with $# arguments : $*"
|
|
fi
|
|
|
|
cat $1 | perl -p \
|
|
-e 's/(L|l)inux.*\d\.\d\.\d+.* \#\d+( [A-Za-z][a-z]{2}){2,3} \d+ \d\d:\d\d:\d\d [A-Za-z]{3} \d{4}\b/%KV00%/g;' \
|
|
-e 's/(L|l)inux( (\w|_)+)?(-| |_)\d\.\d(\.\d+){1,2}((-|_)?(\w|_)+)?( |\000)*/%KV01%/g;' \
|
|
-e 's/\W2(\.\d+){2,3}(-|_)?((\w|_)+)?\s*\W/%KV02%/g;' \
|
|
-e 's/\b([A-Za-z][a-z]{2} ){2}( |\d)?\d \d\d:\d\d:\d\d [A-Za-z]{3} \d{4}\b/%DT00%/g;' \
|
|
-e 's/\b[A-Z][a-z]{2} ( |\d)\d \d{4} \d\d:\d\d:\d\d\b/%DT01%/g;' \
|
|
-e 's/\b\d\d:\d\d:\d\d [A-Z][a-z]{2} ( |\d)\d \d{4}\b/%DT02%/g;' \
|
|
-e 's/\b[A-Z][a-z]{2} ( |\d)\d \d{4}\b/%DT03%/g;' \
|
|
-e 's/\b([A-Z][a-z]{2} ){2}( |\d)\d \d\d:\d\d:\d\d \d{4}/%DT04%/g;' \
|
|
-e 's/\b\d\d:\d\d:\d\d\b/%DT05%/g;' \
|
|
-e 's/\b\d{4} \d\d \d\d\b/%DT06%/g;' \
|
|
-e 's/\b\d{4}-\d\d-\d\d\b/%DT07%/g;' \
|
|
-e 's/\b\d{4}\/\d\d\/\d\d\b/%DT08%/g;' \
|
|
-e 's/\b[A-Z][a-z]{2,} \d{1,2}, \d{4}/%DT09%/g;' \
|
|
-e 's/\b\d\d [A-Z][a-z]{2,} \d{4}/%DT10%/g;' \
|
|
-e 's/\(xample, \d{1,2}\\\)/%DT11%/g;' \
|
|
>$2
|
|
}
|
|
|
|
function tokenizeanddiff() {
|
|
# Call tokenize for the inputs, then compare the results
|
|
# Input arguments are path/filename for old and new versions
|
|
# third parm is readable name (filename, or archivename:member)
|
|
# to help understand what is in the extras output.
|
|
# - sometimes called for files, but other times called for
|
|
# members of ar archives extracted into temporary directories
|
|
#message tokenizeanddiff called for $1 $2 $3
|
|
F1=`mktemp` || fatal "cannot create a temporary file"
|
|
F2=`mktemp` || fatal "cannot create a temporary file"
|
|
tokenize $1 $F1
|
|
tokenize $2 $F2
|
|
|
|
# actually, cmp is probably more efficient
|
|
# but for picking up the pieces it will be better to
|
|
# use diff to see what got through.
|
|
cmp -s $F1 $F2
|
|
TOKENRESULT=$?
|
|
if [ $TOKENRESULT -ne 0 ]; then
|
|
echo "failure in $3..." >&6
|
|
diff -a $F1 $F2 >&6
|
|
rm $F1 $F2
|
|
false
|
|
else
|
|
# show what we did
|
|
echo "substitutions for $3" >&8
|
|
echo "build one" >&8
|
|
diff -a $1 $F1 >&8
|
|
echo "build two" >&8
|
|
diff -a $2 $F2 >&8
|
|
rm $F1 $F2
|
|
true
|
|
fi
|
|
}
|
|
|
|
function validateargs() {
|
|
# validate the arguments
|
|
BAD=0
|
|
if ! [ -d $1 ]; then
|
|
echo "Error: first argument is not a directory" >&2
|
|
let BAD=$BAD+1
|
|
fi
|
|
NAME=`basename ${2%%-*}`
|
|
if [ $NAME != filelist ]; then
|
|
echo "Error: second argument is not a recognized filelist" >&2
|
|
let BAD=$BAD+1
|
|
fi
|
|
if ! [ -d $3 ]; then
|
|
echo "Error: third argument is not a directory" >&2
|
|
let BAD=$BAD+1
|
|
fi
|
|
NAME=`basename ${4%%-*}`
|
|
if [ $NAME != filelist ]; then
|
|
echo "Error: fourth argument is not a recognized filelist" >&2
|
|
let BAD=$BAD+1
|
|
fi
|
|
for I in $1 $2 $3 $4; do
|
|
if ! [ -r $I ]; then
|
|
echo "Error: cannot read $I" >&2
|
|
let BAD=$BAD+1
|
|
fi
|
|
done
|
|
if [ $1 == $3 ]; then
|
|
echo "Error: directory pathes are identical" >&2
|
|
let BAD=$BAD+1
|
|
fi
|
|
if [ $2 == $4 ]; then
|
|
echo "Error: filelist names are identical" >&2
|
|
let BAD=$BAD+1
|
|
fi
|
|
if [ $BAD -eq 0 ]; then
|
|
ARGS=valid
|
|
fi
|
|
}
|
|
|
|
# Mainline
|
|
ARGS=unproven
|
|
OUTDIR=
|
|
if [ $# -eq 1 ]; then
|
|
case $1 in
|
|
-version|--version)
|
|
echo "`basename $0` version $VERSION"
|
|
exit 0
|
|
;;
|
|
-help|--help)
|
|
dohelp
|
|
exit 0
|
|
;;
|
|
esac
|
|
fi
|
|
if [ $1 = "--directory" ]; then
|
|
OUTDIR=$2
|
|
shift 2
|
|
grep '/$' $OUTDIR >/dev/null 2>&1 || OUTDIR=`echo $OUTDIR | sed 's%$%/%'`
|
|
echo "creating directory $OUTDIR"
|
|
mkdir -p $OUTDIR
|
|
if [ $? -ne 0 ]; then
|
|
echo "cannot mkdir $OUTDIR"
|
|
exit 1
|
|
fi
|
|
fi
|
|
if [ $# -eq 4 ]; then
|
|
validateargs $*
|
|
fi
|
|
if ! [ $ARGS == valid ]; then
|
|
dohelp
|
|
fatal "`basename $0`: error in arguments"
|
|
fi
|
|
|
|
# ok, we're happy, lets hit these files
|
|
exec 5>${OUTDIR}$RESULT
|
|
exec 6>${OUTDIR}$EXTRAS
|
|
exec 7>${OUTDIR}$IDENTICAL
|
|
exec 8>${OUTDIR}$SUBS
|
|
exec 9>${OUTDIR}$DIFFER
|
|
|
|
>${OUTDIR}$RESULT
|
|
if [ $? -ne 0 ]; then
|
|
fatal "cannot write to ${OUTDIR}$RESULT"
|
|
fi
|
|
|
|
emessage "will compare:"
|
|
emessage " first build at $1 with files listed in $2"
|
|
emessage "second build at $3 with files listed in $4"
|
|
|
|
let accepted=0
|
|
let different=0
|
|
let expected=0
|
|
let matched=0
|
|
let only=0
|
|
let predictable=0
|
|
let unreadable=0
|
|
let total=0
|
|
|
|
# break down the accepted
|
|
let ACCAR=0
|
|
let ACCELF=0
|
|
let ACCGZ=0
|
|
let ACCUNK=0
|
|
|
|
# break down definitely different
|
|
let DIFAR=0
|
|
let DIFELF=0
|
|
let DIFGZ=0
|
|
let DIFSYM=0
|
|
let DIFUNK=0
|
|
|
|
# break down the expected differences
|
|
let EXPAR=0
|
|
let EXPELF=0
|
|
let EXPGZ=0
|
|
let EXPUNK=0
|
|
|
|
# break down the identical files
|
|
let MATAR=0
|
|
let MATELF=0
|
|
let MATGZ=0
|
|
let MATSYM=0
|
|
let MATUNK=0
|
|
|
|
# break down how many of each type
|
|
let TOTAR=0
|
|
let TOTELF=0
|
|
let TOTGZ=0
|
|
let TOTSYM=0
|
|
let TOTUNK=0
|
|
|
|
# now identify differences between the two trees
|
|
DIFF=`mktemp` || fatal "cannot create a temporary file"
|
|
diff $2 $4 >$DIFF
|
|
|
|
for RUN in '<' '>' ; do
|
|
grep -q "$RUN" $DIFF && onlyone "$RUN"
|
|
done
|
|
|
|
rm $DIFF
|
|
|
|
# and compare them
|
|
message "Results of file comparison:"
|
|
message ""
|
|
|
|
# Strip any trailing slash from the path for tidyness,
|
|
# because the filenames all start with a slash. Unfortunately,
|
|
# unfortunately, '/' becomes empty, which breaks subroutines,
|
|
# so special case it.
|
|
# also, to process ar archives we need to extract them in temp
|
|
# directories - that means that after cd'ing we've broken any
|
|
# relative path, so save original pwd as necessary.
|
|
P1=`echo $1 | sed 's%/$%%'`
|
|
echo $1 | grep '^/' >/dev/null
|
|
if [ $? -ne 0 ]; then
|
|
# relative path
|
|
OP1=${PWD}/
|
|
#echo "setting OP1 to $OP1"
|
|
else
|
|
OP1=
|
|
#echo "$1 is an absolute path"
|
|
fi
|
|
test -z "$P1" && P1='/'
|
|
P2=`echo $3 | sed 's%/$%%'`
|
|
echo $3 | grep '^/' >/dev/null
|
|
if [ $? -ne 0 ]; then
|
|
# relative path
|
|
OP2=${PWD}/
|
|
#echo "setting OP2 to $OP2"
|
|
else
|
|
OP2=
|
|
#echo "$3 is an absolute path"
|
|
fi
|
|
test -z "$P2" && P2='/'
|
|
|
|
echo "about to read $2"
|
|
while read FILE ; do
|
|
#echo "process $FILE"
|
|
#echo "test existence of ${P2}${FILE}"
|
|
# confirm it exists in second build
|
|
# we have already reported files only in one build
|
|
if [ -f ${P2}"${FILE}" ]; then
|
|
let total=$total+1
|
|
# check we can read both of them
|
|
# or count as unreadable - I used to separate only-one-unreadable,
|
|
# but if you compre '/' and a _copy_ of /mnt/lfs that assumption
|
|
# breaks, so be less picky.
|
|
if ! [ -r "${P1}${FILE}" ] || ! [ -r "${P2}${FILE}" ]; then
|
|
message "cannot read one or both versions of $FILE"
|
|
let unreadable=$unreadable+1
|
|
continue
|
|
fi
|
|
if [ -h "${P1}${FILE}" ]; then
|
|
# for symlink, look at what it points to
|
|
# exceptionally, do not call filetype
|
|
TYPE=SYM
|
|
let TOTSYM=$TOTSYM+1
|
|
SL1=`ls -l "${P1}${FILE}" | awk '{ print $11 }'`
|
|
SL2=`ls -l "${P2}${FILE}" | awk '{ print $11 }'`
|
|
if [ "$SL1" = "$SL2" ]; then
|
|
echo "symlink $FILE matches for $SL1" >&5
|
|
let matched=$matched+1
|
|
let MATSYM=$MATSYM+1
|
|
else
|
|
failure TARGET " symlink $FILE points to $SL1 and $SL2"
|
|
echo $FILE >&9
|
|
fi
|
|
else
|
|
# regular file, start by typing it for accounting,
|
|
# then compare it
|
|
filetype ${P1}${FILE}
|
|
cmp -s "${P1}${FILE}" "${P2}${FILE}"
|
|
if [ $? -eq 0 ]; then
|
|
let matched=$matched+1
|
|
case $TYPE in
|
|
AR)
|
|
let MATAR=$MATAR+1
|
|
;;
|
|
ELF)
|
|
let MATELF=$MATELF+1
|
|
;;
|
|
GZ)
|
|
let MATGZ=$MATGZ+1
|
|
;;
|
|
UNK)
|
|
let MATUNK=$MATUNK+1
|
|
;;
|
|
*)
|
|
echo "unexpected TYPE of $TYPE for $FILE" >&2
|
|
exit 2
|
|
;;
|
|
esac
|
|
echo ${FILE} >&7
|
|
else
|
|
# seems different, can we do better ?
|
|
# test if we expect it to differ
|
|
expected $FILE
|
|
if [ $? -ne 0 ]; then
|
|
case $TYPE in
|
|
GZ)
|
|
testgzip $P1 $P2 $FILE ;;
|
|
AR)
|
|
testar $P1 $P2 $FILE ;;
|
|
ELF)
|
|
testso $P1 $P2 $FILE ;;
|
|
*)
|
|
# long-stop - strip dates from text files
|
|
tokenizeanddiff "${P1}${FILE}" "${P2}${FILE}" "$FILE"
|
|
if [ $? -eq 0 ]; then
|
|
message "accepted $FILE after processing"
|
|
let accepted=$accepted+1
|
|
let ACCUNK=$ACCUNK+1
|
|
else
|
|
failure "$FILE" " $FILE is different"
|
|
fi
|
|
;;
|
|
esac
|
|
fi
|
|
fi
|
|
fi
|
|
fi
|
|
done < $2
|
|
|
|
message ""
|
|
# write totals to stderr as well as the results file
|
|
emessage "$only files in only one of the builds"
|
|
emessage "$total files compared, of which"
|
|
emessage "$unreadable files could not be read, skipped"
|
|
emessage "$matched files are identical"
|
|
emessage "$expected files differed as expected"
|
|
emessage "$accepted files had allowable differences"
|
|
#emessage "$predictable files differed as they normally do"
|
|
emessage "$different files differed"
|
|
|
|
# totals of different file types
|
|
emessage ""
|
|
emessage "$TOTAR ar archives"
|
|
emessage " of which $MATAR are identical"
|
|
emessage " of which $ACCAR are accepted after strip-debug or extracting, diffing, tokenizing"
|
|
emessage " of which $EXPAR differed as expected"
|
|
emessage " of which $DIFAR differed"
|
|
emessage "$TOTELF ELF executables or shared libraries"
|
|
emessage " of which $MATELF are identical"
|
|
emessage " of which $ACCELF are accepted after stripping and tokenizing"
|
|
emessage " of which $EXPELF differed as expected"
|
|
emessage " of which $DIFELF differed"
|
|
emessage "$TOTGZ gzipped files"
|
|
emessage " of which $MATGZ are identical"
|
|
emessage " of which $ACCGZ are accepted after comparing beyond timestamp"
|
|
emessage " of which $DIFGZ are different"
|
|
emessage "$TOTSYM symbolic links"
|
|
emessage " of which $MATSYM are identical"
|
|
emessage " of which $DIFSYM have different targets"
|
|
emessage "$TOTUNK other files"
|
|
emessage " of which $MATUNK are identical"
|
|
emessage " of which $ACCUNK are accepted after tokenizing"
|
|
emessage " of which $EXPUNK differed as expected"
|
|
emessage " of which $DIFUNK differed"
|
|
|