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@@ -1,814 +0,0 @@
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-#!@PERL@
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-
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-# This script is essentially copied from /usr/share/lintian/checks/scripts,
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-# which is:
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-# Copyright (C) 1998 Richard Braakman
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-# Copyright (C) 2002 Josip Rodin
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-# This version is
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-# Copyright (C) 2003 Julian Gilbey
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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
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-# (at 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,
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-# but WITHOUT ANY WARRANTY; without even the implied warranty of
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-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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-# GNU General Public License for more 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, see <https://www.gnu.org/licenses/>.
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-
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-use strict;
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-use warnings;
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-use Getopt::Long qw(:config bundling permute no_getopt_compat);
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-use File::Temp qw/tempfile/;
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-
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-sub init_hashes;
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-
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-(my $progname = $0) =~ s|.*/||;
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-
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-my $usage = <<"EOF";
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-Usage: $progname [-n] [-f] [-x] script ...
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- or: $progname --help
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- or: $progname --version
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-This script performs basic checks for the presence of bashisms
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-in /bin/sh scripts and the lack of bashisms in /bin/bash ones.
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-EOF
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-
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-my $version = <<"EOF";
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-This is $progname, from the Debian devscripts package, version ###VERSION###
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-This code is copyright 2003 by Julian Gilbey <jdg\@debian.org>,
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-based on original code which is copyright 1998 by Richard Braakman
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-and copyright 2002 by Josip Rodin.
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-This program comes with ABSOLUTELY NO WARRANTY.
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-You are free to redistribute this code under the terms of the
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-GNU General Public License, version 2, or (at your option) any later version.
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-EOF
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-
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-my ($opt_echo, $opt_force, $opt_extra, $opt_posix);
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-my ($opt_help, $opt_version);
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-my @filenames;
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-
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-# Detect if STDIN is a pipe
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-if (scalar(@ARGV) == 0 && (-p STDIN or -f STDIN)) {
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- push(@ARGV, '-');
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-}
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-
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-##
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-## handle command-line options
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-##
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-$opt_help = 1 if int(@ARGV) == 0;
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-
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-GetOptions(
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- "help|h" => \$opt_help,
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- "version|v" => \$opt_version,
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- "newline|n" => \$opt_echo,
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- "force|f" => \$opt_force,
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- "extra|x" => \$opt_extra,
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- "posix|p" => \$opt_posix,
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- )
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- or die
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-"Usage: $progname [options] filelist\nRun $progname --help for more details\n";
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-
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-if ($opt_help) { print $usage; exit 0; }
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-if ($opt_version) { print $version; exit 0; }
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-
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-$opt_echo = 1 if $opt_posix;
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-
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-my $mode = 0;
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-my $issues = 0;
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-my $status = 0;
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-my $makefile = 0;
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-my (%bashisms, %string_bashisms, %singlequote_bashisms);
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-
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-my $LEADIN
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- = qr'(?:(?:^|[`&;(|{])\s*|(?:(?:if|elif|while)(?:\s+!)?|then|do|shell)\s+)';
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-init_hashes;
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-
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-my @bashisms_keys = sort keys %bashisms;
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-my @string_bashisms_keys = sort keys %string_bashisms;
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-my @singlequote_bashisms_keys = sort keys %singlequote_bashisms;
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-
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-foreach my $filename (@ARGV) {
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- my $check_lines_count = -1;
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-
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- my $display_filename = $filename;
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-
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- if ($filename eq '-') {
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- my $tmp_fh;
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- ($tmp_fh, $filename)
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- = tempfile("chkbashisms_tmp.XXXX", TMPDIR => 1, UNLINK => 1);
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- while (my $line = <STDIN>) {
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- print $tmp_fh $line;
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- }
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- close($tmp_fh);
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- $display_filename = "(stdin)";
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- }
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-
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- if (!$opt_force) {
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- $check_lines_count = script_is_evil_and_wrong($filename);
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- }
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-
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- if ($check_lines_count == 0 or $check_lines_count == 1) {
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- warn
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-"script $display_filename does not appear to be a /bin/sh script; skipping\n";
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- next;
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- }
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-
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- if ($check_lines_count != -1) {
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- warn
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-"script $display_filename appears to be a shell wrapper; only checking the first "
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- . "$check_lines_count lines\n";
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- }
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-
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- unless (open C, '<', $filename) {
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- warn "cannot open script $display_filename for reading: $!\n";
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- $status |= 2;
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- next;
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- }
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-
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- $issues = 0;
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- $mode = 0;
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- my $cat_string = "";
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- my $cat_indented = 0;
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- my $quote_string = "";
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- my $last_continued = 0;
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- my $continued = 0;
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- my $found_rules = 0;
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- my $buffered_orig_line = "";
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- my $buffered_line = "";
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- my %start_lines;
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-
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- while (<C>) {
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- next unless ($check_lines_count == -1 or $. <= $check_lines_count);
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-
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- if ($. == 1) { # This should be an interpreter line
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- if (m,^\#!\s*(?:\S+/env\s+)?(\S+),) {
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- my $interpreter = $1;
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-
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- if ($interpreter =~ m,(?:^|/)make$,) {
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- init_hashes if !$makefile++;
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- $makefile = 1;
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- } else {
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- init_hashes if $makefile--;
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- $makefile = 0;
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- }
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- next if $opt_force;
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-
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- if ($interpreter =~ m,(?:^|/)bash$,) {
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- $mode = 1;
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- } elsif ($interpreter !~ m,(?:^|/)(sh|dash|posh)$,) {
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-### ksh/zsh?
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- warn
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-"script $display_filename does not appear to be a /bin/sh script; skipping\n";
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- $status |= 2;
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- last;
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- }
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- } else {
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- warn
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-"script $display_filename does not appear to have a \#! interpreter line;\nyou may get strange results\n";
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- }
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- }
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-
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- chomp;
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- my $orig_line = $_;
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-
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- # We want to remove end-of-line comments, so need to skip
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- # comments that appear inside balanced pairs
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- # of single or double quotes
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-
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- # Remove comments in the "quoted" part of a line that starts
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- # in a quoted block? The problem is that we have no idea
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- # whether the program interpreting the block treats the
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- # quote character as part of the comment or as a quote
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- # terminator. We err on the side of caution and assume it
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- # will be treated as part of the comment.
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- # s/^(?:.*?[^\\])?$quote_string(.*)$/$1/ if $quote_string ne "";
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-
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- # skip comment lines
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- if ( m,^\s*\#,
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- && $quote_string eq ''
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- && $buffered_line eq ''
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- && $cat_string eq '') {
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- next;
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- }
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-
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- # Remove quoted strings so we can more easily ignore comments
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- # inside them
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- s/(^|[^\\](?:\\\\)*)\'(?:\\.|[^\\\'])+\'/$1''/g;
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- s/(^|[^\\](?:\\\\)*)\"(?:\\.|[^\\\"])+\"/$1""/g;
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-
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- # If inside a quoted string, remove everything before the quote
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- s/^.+?\'//
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- if ($quote_string eq "'");
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- s/^.+?[^\\]\"//
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- if ($quote_string eq '"');
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-
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- # If the remaining string contains what looks like a comment,
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- # eat it. In either case, swap the unmodified script line
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- # back in for processing.
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- if (m/(?:^|[^[\\])[\s\&;\(\)](\#.*$)/) {
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- $_ = $orig_line;
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- s/\Q$1\E//; # eat comments
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- } else {
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- $_ = $orig_line;
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- }
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-
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- # Handle line continuation
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- if (!$makefile && $cat_string eq '' && m/\\$/) {
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- chop;
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- $buffered_line .= $_;
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- $buffered_orig_line .= $orig_line . "\n";
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- next;
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- }
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-
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- if ($buffered_line ne '') {
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- $_ = $buffered_line . $_;
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- $orig_line = $buffered_orig_line . $orig_line;
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- $buffered_line = '';
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- $buffered_orig_line = '';
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- }
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-
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- if ($makefile) {
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- $last_continued = $continued;
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- if (/[^\\]\\$/) {
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- $continued = 1;
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- } else {
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- $continued = 0;
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- }
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-
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- # Don't match lines that look like a rule if we're in a
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- # continuation line before the start of the rules
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- if (/^[\w%-]+:+\s.*?;?(.*)$/
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- and !($last_continued and !$found_rules)) {
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- $found_rules = 1;
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- $_ = $1 if $1;
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- }
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-
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- last
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- if m%^\s*(override\s|export\s)?\s*SHELL\s*:?=\s*(/bin/)?bash\s*%;
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-
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- # Remove "simple" target names
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- s/^[\w%.-]+(?:\s+[\w%.-]+)*::?//;
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- s/^\t//;
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- s/(?<!\$)\$\((\w+)\)/\${$1}/g;
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- s/(\$){2}/$1/g;
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- s/^[\s\t]*[@-]{1,2}//;
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- }
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-
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- if (
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- $cat_string ne ""
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- && (m/^\Q$cat_string\E$/
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- || ($cat_indented && m/^\t*\Q$cat_string\E$/))
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- ) {
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- $cat_string = "";
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- next;
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- }
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- my $within_another_shell = 0;
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- if (m,(^|\s+)((/usr)?/bin/)?((b|d)?a|k|z|t?c)sh\s+-c\s*.+,) {
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- $within_another_shell = 1;
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- }
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- # if cat_string is set, we are in a HERE document and need not
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- # check for things
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- if ($cat_string eq "" and !$within_another_shell) {
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- my $found = 0;
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- my $match = '';
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- my $explanation = '';
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- my $line = $_;
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-
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- # Remove "" / '' as they clearly aren't quoted strings
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- # and not considering them makes the matching easier
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- $line =~ s/(^|[^\\])(\'\')+/$1/g;
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- $line =~ s/(^|[^\\])(\"\")+/$1/g;
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-
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- if ($quote_string ne "") {
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- my $otherquote = ($quote_string eq "\"" ? "\'" : "\"");
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- # Inside a quoted block
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- if ($line =~ /(?:^|^.*?[^\\])$quote_string(.*)$/) {
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- my $rest = $1;
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- my $templine = $line;
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-
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- # Remove quoted strings delimited with $otherquote
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- $templine
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- =~ s/(^|[^\\])$otherquote[^$quote_string]*?[^\\]$otherquote/$1/g;
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- # Remove quotes that are themselves quoted
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- # "a'b"
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- $templine
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- =~ s/(^|[^\\])$otherquote.*?$quote_string.*?[^\\]$otherquote/$1/g;
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- # "\""
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- $templine
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- =~ s/(^|[^\\])$quote_string\\$quote_string$quote_string/$1/g;
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-
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- # After all that, were there still any quotes left?
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- my $count = () = $templine =~ /(^|[^\\])$quote_string/g;
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- next if $count == 0;
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-
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- $count = () = $rest =~ /(^|[^\\])$quote_string/g;
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- if ($count % 2 == 0) {
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- # Quoted block ends on this line
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- # Ignore everything before the closing quote
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- $line = $rest || '';
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- $quote_string = "";
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- } else {
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- next;
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- }
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- } else {
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- # Still inside the quoted block, skip this line
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- next;
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- }
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- }
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-
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- # Check even if we removed the end of a quoted block
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- # in the previous check, as a single line can end one
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- # block and begin another
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- if ($quote_string eq "") {
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- # Possible start of a quoted block
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- for my $quote ("\"", "\'") {
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- my $templine = $line;
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- my $otherquote = ($quote eq "\"" ? "\'" : "\"");
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-
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- # Remove balanced quotes and their content
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- while (1) {
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- my ($length_single, $length_double) = (0, 0);
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-
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- # Determine which one would match first:
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- if ($templine
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- =~ m/(^.+?(?:^|[^\\\"](?:\\\\)*)\')[^\']*\'/) {
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- $length_single = length($1);
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- }
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- if ($templine
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- =~ m/(^.*?(?:^|[^\\\'](?:\\\\)*)\")(?:\\.|[^\\\"])+\"/
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- ) {
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- $length_double = length($1);
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- }
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-
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- # Now simplify accordingly (shorter is preferred):
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- if (
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- $length_single != 0
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- && ( $length_single < $length_double
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- || $length_double == 0)
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- ) {
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- $templine =~ s/(^|[^\\\"](?:\\\\)*)\'[^\']*\'/$1/;
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- } elsif ($length_double != 0) {
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- $templine
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- =~ s/(^|[^\\\'](?:\\\\)*)\"(?:\\.|[^\\\"])+\"/$1/;
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- } else {
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- last;
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- }
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- }
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-
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- # Don't flag quotes that are themselves quoted
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- # "a'b"
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- $templine =~ s/$otherquote.*?$quote.*?$otherquote//g;
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- # "\""
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- $templine =~ s/(^|[^\\])$quote\\$quote$quote/$1/g;
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- # \' or \"
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- $templine =~ s/\\[\'\"]//g;
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- my $count = () = $templine =~ /(^|(?!\\))$quote/g;
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-
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- # If there's an odd number of non-escaped
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- # quotes in the line it's almost certainly the
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- # start of a quoted block.
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- if ($count % 2 == 1) {
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- $quote_string = $quote;
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- $start_lines{'quote_string'} = $.;
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- $line =~ s/^(.*)$quote.*$/$1/;
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- last;
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- }
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- }
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- }
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-
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- # since this test is ugly, I have to do it by itself
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- # detect source (.) trying to pass args to the command it runs
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- # The first expression weeds out '. "foo bar"'
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- if ( not $found
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- and not
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-m/$LEADIN\.\s+(\"[^\"]+\"|\'[^\']+\'|\$\([^)]+\)+(?:\/[^\s;]+)?)\s*(\&|\||\d?>|<|;|\Z)/o
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- and m/$LEADIN(\.\s+[^\s;\`:]+\s+([^\s;]+))/o) {
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- if ($2 =~ /^(\&|\||\d?>|<)/) {
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- # everything is ok
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- ;
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- } else {
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- $found = 1;
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- $match = $1;
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- $explanation = "sourced script with arguments";
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- output_explanation($display_filename, $orig_line,
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- $explanation);
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- # Remove "quoted quotes". They're likely to be inside
|
|
|
- # another pair of quotes; we're not interested in
|
|
|
- # them for their own sake and removing them makes finding
|
|
|
- # the limits of the outer pair far easier.
|
|
|
- $line =~ s/(^|[^\\\'\"])\"\'\"/$1/g;
|
|
|
- $line =~ s/(^|[^\\\'\"])\'\"\'/$1/g;
|
|
|
-
|
|
|
- foreach my $re (@singlequote_bashisms_keys) {
|
|
|
- my $expl = $singlequote_bashisms{$re};
|
|
|
- if ($line =~ m/($re)/) {
|
|
|
- $found = 1;
|
|
|
- $match = $1;
|
|
|
- $explanation = $expl;
|
|
|
- output_explanation($display_filename, $orig_line,
|
|
|
- $explanation);
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- my $re = '(?<![\$\\\])\$\'[^\']+\'';
|
|
|
- if ($line =~ m/(.*)($re)/o) {
|
|
|
- my $count = () = $1 =~ /(^|[^\\])\'/g;
|
|
|
- if ($count % 2 == 0) {
|
|
|
- output_explanation($display_filename, $orig_line,
|
|
|
- q<$'...' should be "$(printf '...')">);
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- # $cat_line contains the version of the line we'll check
|
|
|
- # for heredoc delimiters later. Initially, remove any
|
|
|
- # spaces between << and the delimiter to make the following
|
|
|
- # updates to $cat_line easier. However, don't remove the
|
|
|
- # spaces if the delimiter starts with a -, as that changes
|
|
|
- # how the delimiter is searched.
|
|
|
- my $cat_line = $line;
|
|
|
- $cat_line =~ s/(<\<-?)\s+(?!-)/$1/g;
|
|
|
-
|
|
|
- # Ignore anything inside single quotes; it could be an
|
|
|
- # argument to grep or the like.
|
|
|
- $line =~ s/(^|[^\\\"](?:\\\\)*)\'(?:\\.|[^\\\'])+\'/$1''/g;
|
|
|
-
|
|
|
- # As above, with the exception that we don't remove the string
|
|
|
- # if the quote is immediately preceded by a < or a -, so we
|
|
|
- # can match "foo <<-?'xyz'" as a heredoc later
|
|
|
- # The check is a little more greedy than we'd like, but the
|
|
|
- # heredoc test itself will weed out any false positives
|
|
|
- $cat_line =~ s/(^|[^<\\\"-](?:\\\\)*)\'(?:\\.|[^\\\'])+\'/$1''/g;
|
|
|
-
|
|
|
- $re = '(?<![\$\\\])\$\"[^\"]+\"';
|
|
|
- if ($line =~ m/(.*)($re)/o) {
|
|
|
- my $count = () = $1 =~ /(^|[^\\])\"/g;
|
|
|
- if ($count % 2 == 0) {
|
|
|
- output_explanation($display_filename, $orig_line,
|
|
|
- q<$"foo" should be eval_gettext "foo">);
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- foreach my $re (@string_bashisms_keys) {
|
|
|
- my $expl = $string_bashisms{$re};
|
|
|
- if ($line =~ m/($re)/) {
|
|
|
- $found = 1;
|
|
|
- $match = $1;
|
|
|
- $explanation = $expl;
|
|
|
- output_explanation($display_filename, $orig_line,
|
|
|
- $explanation);
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- # We've checked for all the things we still want to notice in
|
|
|
- # double-quoted strings, so now remove those strings as well.
|
|
|
- $line =~ s/(^|[^\\\'](?:\\\\)*)\"(?:\\.|[^\\\"])+\"/$1""/g;
|
|
|
- $cat_line =~ s/(^|[^<\\\'-](?:\\\\)*)\"(?:\\.|[^\\\"])+\"/$1""/g;
|
|
|
- foreach my $re (@bashisms_keys) {
|
|
|
- my $expl = $bashisms{$re};
|
|
|
- if ($line =~ m/($re)/) {
|
|
|
- $found = 1;
|
|
|
- $match = $1;
|
|
|
- $explanation = $expl;
|
|
|
- output_explanation($display_filename, $orig_line,
|
|
|
- $explanation);
|
|
|
- }
|
|
|
- }
|
|
|
- # This check requires the value to be compared, which could
|
|
|
- # be done in the regex itself but requires "use re 'eval'".
|
|
|
- # So it's better done in its own
|
|
|
- if ($line =~ m/$LEADIN((?:exit|return)\s+(\d{3,}))/o && $2 > 255) {
|
|
|
- $explanation = 'exit|return status code greater than 255';
|
|
|
- output_explanation($display_filename, $orig_line,
|
|
|
- $explanation);
|
|
|
- }
|
|
|
-
|
|
|
- # Only look for the beginning of a heredoc here, after we've
|
|
|
- # stripped out quoted material, to avoid false positives.
|
|
|
- if ($cat_line
|
|
|
- =~ m/(?:^|[^<])\<\<(\-?)\s*(?:(?!<|'|")((?:[^\s;>|]+(?:(?<=\\)[\s;>|])?)+)|[\'\"](.*?)[\'\"])/
|
|
|
- ) {
|
|
|
- $cat_indented = ($1 && $1 eq '-') ? 1 : 0;
|
|
|
- my $quoted = defined($3);
|
|
|
- $cat_string = $quoted ? $3 : $2;
|
|
|
- unless ($quoted) {
|
|
|
- # Now strip backslashes. Keep the position of the
|
|
|
- # last match in a variable, as s/// resets it back
|
|
|
- # to undef, but we don't want that.
|
|
|
- my $pos = 0;
|
|
|
- pos($cat_string) = $pos;
|
|
|
- while ($cat_string =~ s/\G(.*?)\\/$1/) {
|
|
|
- # position += length of match + the character
|
|
|
- # that followed the backslash:
|
|
|
- $pos += length($1) + 1;
|
|
|
- pos($cat_string) = $pos;
|
|
|
- }
|
|
|
- }
|
|
|
- $start_lines{'cat_string'} = $.;
|
|
|
- }
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- warn
|
|
|
-"error: $display_filename: Unterminated heredoc found, EOF reached. Wanted: <$cat_string>, opened in line $start_lines{'cat_string'}\n"
|
|
|
- if ($cat_string ne '');
|
|
|
- warn
|
|
|
-"error: $display_filename: Unterminated quoted string found, EOF reached. Wanted: <$quote_string>, opened in line $start_lines{'quote_string'}\n"
|
|
|
- if ($quote_string ne '');
|
|
|
- warn "error: $display_filename: EOF reached while on line continuation.\n"
|
|
|
- if ($buffered_line ne '');
|
|
|
-
|
|
|
- close C;
|
|
|
-
|
|
|
- if ($mode && !$issues) {
|
|
|
- warn "could not find any possible bashisms in bash script $filename\n";
|
|
|
- $status |= 4;
|
|
|
- }
|
|
|
-}
|
|
|
-
|
|
|
-exit $status;
|
|
|
-
|
|
|
-sub output_explanation {
|
|
|
- my ($filename, $line, $explanation) = @_;
|
|
|
-
|
|
|
- if ($mode) {
|
|
|
- # When examining a bash script, just flag that there are indeed
|
|
|
- # bashisms present
|
|
|
- $issues = 1;
|
|
|
- } else {
|
|
|
- warn "possible bashism in $filename line $. ($explanation):\n$line\n";
|
|
|
- $status |= 1;
|
|
|
- }
|
|
|
-}
|
|
|
-
|
|
|
-# Returns non-zero if the given file is not actually a shell script,
|
|
|
-# just looks like one.
|
|
|
-sub script_is_evil_and_wrong {
|
|
|
- my ($filename) = @_;
|
|
|
- my $ret = -1;
|
|
|
- # lintian's version of this function aborts if the file
|
|
|
- # can't be opened, but we simply return as the next
|
|
|
- # test in the calling code handles reporting the error
|
|
|
- # itself
|
|
|
- open(IN, '<', $filename) or return $ret;
|
|
|
- my $i = 0;
|
|
|
- my $var = "0";
|
|
|
- my $backgrounded = 0;
|
|
|
- local $_;
|
|
|
- while (<IN>) {
|
|
|
- chomp;
|
|
|
- next if /^#/o;
|
|
|
- next if /^$/o;
|
|
|
- last if (++$i > 55);
|
|
|
- if (
|
|
|
- m~
|
|
|
- # the exec should either be "eval"ed or a new statement
|
|
|
- (^\s*|\beval\s*[\'\"]|(;|&&|\b(then|else))\s*)
|
|
|
-
|
|
|
- # eat anything between the exec and $0
|
|
|
- exec\s*.+\s*
|
|
|
-
|
|
|
- # optionally quoted executable name (via $0)
|
|
|
- .?\$$var.?\s*
|
|
|
-
|
|
|
- # optional "end of options" indicator
|
|
|
- (--\s*)?
|
|
|
-
|
|
|
- # Match expressions of the form '${1+$@}', '${1:+"$@"',
|
|
|
- # '"${1+$@', "$@", etc where the quotes (before the dollar
|
|
|
- # sign(s)) are optional and the second (or only if the $1
|
|
|
- # clause is omitted) parameter may be $@ or $*.
|
|
|
- #
|
|
|
- # Finally the whole subexpression may be omitted for scripts
|
|
|
- # which do not pass on their parameters (i.e. after re-execing
|
|
|
- # they take their parameters (and potentially data) from stdin
|
|
|
- .?(\$\{1:?\+.?)?(\$(\@|\*))?~x
|
|
|
- ) {
|
|
|
- $ret = $. - 1;
|
|
|
- last;
|
|
|
- } elsif (/^\s*(\w+)=\$0;/) {
|
|
|
- $var = $1;
|
|
|
- } elsif (
|
|
|
- m~
|
|
|
- # Match scripts which use "foo $0 $@ &\nexec true\n"
|
|
|
- # Program name
|
|
|
- \S+\s+
|
|
|
-
|
|
|
- # As above
|
|
|
- .?\$$var.?\s*
|
|
|
- (--\s*)?
|
|
|
- .?(\$\{1:?\+.?)?(\$(\@|\*))?.?\s*\&~x
|
|
|
- ) {
|
|
|
-
|
|
|
- $backgrounded = 1;
|
|
|
- } elsif (
|
|
|
- $backgrounded
|
|
|
- and m~
|
|
|
- # the exec should either be "eval"ed or a new statement
|
|
|
- (^\s*|\beval\s*[\'\"]|(;|&&|\b(then|else))\s*)
|
|
|
- exec\s+true(\s|\Z)~x
|
|
|
- ) {
|
|
|
-
|
|
|
- $ret = $. - 1;
|
|
|
- last;
|
|
|
- } elsif (m~\@DPATCH\@~) {
|
|
|
- $ret = $. - 1;
|
|
|
- last;
|
|
|
- }
|
|
|
-
|
|
|
- }
|
|
|
- close IN;
|
|
|
- return $ret;
|
|
|
-}
|
|
|
-
|
|
|
-sub init_hashes {
|
|
|
-
|
|
|
- %bashisms = (
|
|
|
- qr'(?:^|\s+)function [^<>\(\)\[\]\{\};|\s]+(\s|\(|\Z)' =>
|
|
|
- q<'function' is useless>,
|
|
|
- $LEADIN . qr'select\s+\w+' => q<'select' is not POSIX>,
|
|
|
- qr'(test|-o|-a)\s*[^\s]+\s+==\s' => q<should be 'b = a'>,
|
|
|
- qr'\[\s+[^\]]+\s+==\s' => q<should be 'b = a'>,
|
|
|
- qr'\s\|\&' => q<pipelining is not POSIX>,
|
|
|
- qr'[^\\\$]\{([^\s\\\}]*?,)+[^\\\}\s]*\}' => q<brace expansion>,
|
|
|
- qr'\{\d+\.\.\d+(?:\.\.\d+)?\}' =>
|
|
|
- q<brace expansion, {a..b[..c]}should be $(seq a [c] b)>,
|
|
|
- qr'(?i)\{[a-z]\.\.[a-z](?:\.\.\d+)?\}' => q<brace expansion>,
|
|
|
- qr'(?:^|\s+)\w+\[\d+\]=' => q<bash arrays, H[0]>,
|
|
|
- $LEADIN
|
|
|
- . qr'read\s+(?:-[a-qs-zA-Z\d-]+)' =>
|
|
|
- q<read with option other than -r>,
|
|
|
- $LEADIN
|
|
|
- . qr'read\s*(?:-\w+\s*)*(?:\".*?\"|[\'].*?[\'])?\s*(?:;|$)' =>
|
|
|
- q<read without variable>,
|
|
|
- $LEADIN . qr'echo\s+(-n\s+)?-n?en?\s' => q<echo -e>,
|
|
|
- $LEADIN . qr'exec\s+-[acl]' => q<exec -c/-l/-a name>,
|
|
|
- $LEADIN . qr'let\s' => q<let ...>,
|
|
|
- qr'(?<![\$\(])\(\(.*\)\)' => q<'((' should be '$(('>,
|
|
|
- qr'(?:^|\s+)(\[|test)\s+-a' => q<test with unary -a (should be -e)>,
|
|
|
- qr'\&>' => q<should be \>word 2\>&1>,
|
|
|
- qr'(<\&|>\&)\s*((-|\d+)[^\s;|)}`&\\\\]|[^-\d\s]+(?<!\$)(?!\d))' =>
|
|
|
- q<should be \>word 2\>&1>,
|
|
|
- qr'\[\[(?!:)' =>
|
|
|
- q<alternative test command ([[ foo ]] should be [ foo ])>,
|
|
|
- qr'/dev/(tcp|udp)' => q</dev/(tcp|udp)>,
|
|
|
- $LEADIN . qr'builtin\s' => q<builtin>,
|
|
|
- $LEADIN . qr'caller\s' => q<caller>,
|
|
|
- $LEADIN . qr'compgen\s' => q<compgen>,
|
|
|
- $LEADIN . qr'complete\s' => q<complete>,
|
|
|
- $LEADIN . qr'declare\s' => q<declare>,
|
|
|
- $LEADIN . qr'dirs(\s|\Z)' => q<dirs>,
|
|
|
- $LEADIN . qr'disown\s' => q<disown>,
|
|
|
- $LEADIN . qr'enable\s' => q<enable>,
|
|
|
- $LEADIN . qr'mapfile\s' => q<mapfile>,
|
|
|
- $LEADIN . qr'readarray\s' => q<readarray>,
|
|
|
- $LEADIN . qr'shopt(\s|\Z)' => q<shopt>,
|
|
|
- $LEADIN . qr'suspend\s' => q<suspend>,
|
|
|
- $LEADIN . qr'time\s' => q<time>,
|
|
|
- $LEADIN . qr'type\s' => q<type>,
|
|
|
- $LEADIN . qr'typeset\s' => q<typeset>,
|
|
|
- $LEADIN . qr'ulimit(\s|\Z)' => q<ulimit>,
|
|
|
- $LEADIN . qr'set\s+-[BHT]+' => q<set -[BHT]>,
|
|
|
- $LEADIN . qr'alias\s+-p' => q<alias -p>,
|
|
|
- $LEADIN . qr'unalias\s+-a' => q<unalias -a>,
|
|
|
- $LEADIN . qr'local\s+-[a-zA-Z]+' => q<local -opt>,
|
|
|
- # function '=' is special-cased due to bash arrays (think of "foo=()")
|
|
|
- qr'(?:^|\s)\s*=\s*\(\s*\)\s*([\{|\(]|\Z)' =>
|
|
|
- q<function names should only contain [a-z0-9_]>,
|
|
|
-qr'(?:^|\s)(?<func>function\s)?\s*(?:[^<>\(\)\[\]\{\};|\s]*[^<>\(\)\[\]\{\};|\s\w][^<>\(\)\[\]\{\};|\s]*)(?(<func>)(?=)|(?<!=))\s*(?(<func>)(?:\(\s*\))?|\(\s*\))\s*([\{|\(]|\Z)'
|
|
|
- => q<function names should only contain [a-z0-9_]>,
|
|
|
- $LEADIN . qr'(push|pop)d(\s|\Z)' => q<(push|pop)d>,
|
|
|
- $LEADIN . qr'export\s+-[^p]' => q<export only takes -p as an option>,
|
|
|
- qr'(?:^|\s+)[<>]\(.*?\)' => q<\<() process substitution>,
|
|
|
- $LEADIN . qr'readonly\s+-[af]' => q<readonly -[af]>,
|
|
|
- $LEADIN . qr'(sh|\$\{?SHELL\}?) -[rD]' => q<sh -[rD]>,
|
|
|
- $LEADIN . qr'(sh|\$\{?SHELL\}?) --\w+' => q<sh --long-option>,
|
|
|
- $LEADIN . qr'(sh|\$\{?SHELL\}?) [-+]O' => q<sh [-+]O>,
|
|
|
- qr'\[\^[^]]+\]' => q<[^] should be [!]>,
|
|
|
- $LEADIN
|
|
|
- . qr'printf\s+-v' =>
|
|
|
- q<'printf -v var ...' should be var='$(printf ...)'>,
|
|
|
- $LEADIN . qr'coproc\s' => q<coproc>,
|
|
|
- qr';;?&' => q<;;& and ;& special case operators>,
|
|
|
- $LEADIN . qr'jobs\s' => q<jobs>,
|
|
|
- # $LEADIN . qr'jobs\s+-[^lp]\s' => q<'jobs' with option other than -l or -p>,
|
|
|
- $LEADIN
|
|
|
- . qr'command\s+-[^p]\s' => q<'command' with option other than -p>,
|
|
|
- $LEADIN
|
|
|
- . qr'setvar\s' =>
|
|
|
- q<setvar 'foo' 'bar' should be eval 'foo="'"$bar"'"'>,
|
|
|
- $LEADIN
|
|
|
- . qr'trap\s+["\']?.*["\']?\s+.*(?:ERR|DEBUG|RETURN)' =>
|
|
|
- q<trap with ERR|DEBUG|RETURN>,
|
|
|
- $LEADIN
|
|
|
- . qr'(?:exit|return)\s+-\d' =>
|
|
|
- q<exit|return with negative status code>,
|
|
|
- $LEADIN
|
|
|
- . qr'(?:exit|return)\s+--' =>
|
|
|
- q<'exit --' should be 'exit' (idem for return)>,
|
|
|
- $LEADIN
|
|
|
- . qr'sleep\s+(?:-|\d+(?:[.a-z]|\s+\d))' =>
|
|
|
- q<sleep only takes one integer>,
|
|
|
- $LEADIN . qr'hash(\s|\Z)' => q<hash>,
|
|
|
- qr'(?:[:=\s])~(?:[+-]|[+-]?\d+)(?:[/\s]|\Z)' =>
|
|
|
- q<non-standard tilde expansion>,
|
|
|
- );
|
|
|
-
|
|
|
- %string_bashisms = (
|
|
|
- qr'\$\[[^][]+\]' => q<'$[' should be '$(('>,
|
|
|
- qr'\$\{(?:\w+|@|\*)\:(?:\d+|\$\{?\w+\}?)+(?::(?:\d+|\$\{?\w+\}?)+)?\}'
|
|
|
- => q<${foo:3[:1]}>,
|
|
|
- qr'\$\{!\w+[\@*]\}' => q<${!prefix[*|@]>,
|
|
|
- qr'\$\{!\w+\}' => q<${!name}>,
|
|
|
- qr'\$\{(?:\w+|@|\*)([,^]{1,2}.*?)\}' =>
|
|
|
- q<${parm,[,][pat]} or ${parm^[^][pat]}>,
|
|
|
- qr'\$\{[@*]([#%]{1,2}.*?)\}' => q<${[@|*]#[#]pat} or ${[@|*]%[%]pat}>,
|
|
|
- qr'\$\{#[@*]\}' => q<${#@} or ${#*}>,
|
|
|
- qr'\$\{(?:\w+|@|\*)(/.+?){1,2}\}' => q<${parm/?/pat[/str]}>,
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|
- qr'\$\{\#?\w+\[.+\](?:[/,:#%^].+?)?\}' =>
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- q<bash arrays, ${name[0|*|@]}>,
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- qr'\$\{?RANDOM\}?\b' => q<$RANDOM>,
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|
- qr'\$\{?(OS|MACH)TYPE\}?\b' => q<$(OS|MACH)TYPE>,
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|
- qr'\$\{?HOST(TYPE|NAME)\}?\b' => q<$HOST(TYPE|NAME)>,
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|
- qr'\$\{?DIRSTACK\}?\b' => q<$DIRSTACK>,
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- qr'\$\{?EUID\}?\b' => q<$EUID should be "$(id -u)">,
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- qr'\$\{?UID\}?\b' => q<$UID should be "$(id -ru)">,
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|
- qr'\$\{?SECONDS\}?\b' => q<$SECONDS>,
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- qr'\$\{?BASH_[A-Z]+\}?\b' => q<$BASH_SOMETHING>,
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|
- qr'\$\{?SHELLOPTS\}?\b' => q<$SHELLOPTS>,
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|
|
- qr'\$\{?PIPESTATUS\}?\b' => q<$PIPESTATUS>,
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|
- qr'\$\{?SHLVL\}?\b' => q<$SHLVL>,
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|
- qr'\$\{?FUNCNAME\}?\b' => q<$FUNCNAME>,
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|
- qr'\$\{?TMOUT\}?\b' => q<$TMOUT>,
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- qr'(?:^|\s+)TMOUT=' => q<TMOUT=>,
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|
- qr'\$\{?TIMEFORMAT\}?\b' => q<$TIMEFORMAT>,
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|
- qr'(?:^|\s+)TIMEFORMAT=' => q<TIMEFORMAT=>,
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|
- qr'(?<![$\\])\$\{?_\}?\b' => q<$_>,
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|
- qr'(?:^|\s+)GLOBIGNORE=' => q<GLOBIGNORE=>,
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|
|
- qr'<<<' => q<\<\<\< here string>,
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|
|
- $LEADIN
|
|
|
- . qr'echo\s+(?:-[^e\s]+\s+)?\"[^\"]*(\\[abcEfnrtv0])+.*?[\"]' =>
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|
|
- q<unsafe echo with backslash>,
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|
|
- qr'\$\(\([\s\w$*/+-]*\w\+\+.*?\)\)' =>
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|
|
- q<'$((n++))' should be '$n; $((n=n+1))'>,
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|
|
- qr'\$\(\([\s\w$*/+-]*\+\+\w.*?\)\)' =>
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|
|
- q<'$((++n))' should be '$((n=n+1))'>,
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|
|
- qr'\$\(\([\s\w$*/+-]*\w\-\-.*?\)\)' =>
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|
|
- q<'$((n--))' should be '$n; $((n=n-1))'>,
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|
|
- qr'\$\(\([\s\w$*/+-]*\-\-\w.*?\)\)' =>
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|
|
- q<'$((--n))' should be '$((n=n-1))'>,
|
|
|
- qr'\$\(\([\s\w$*/+-]*\*\*.*?\)\)' => q<exponentiation is not POSIX>,
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|
|
- $LEADIN . qr'printf\s["\'][^"\']*?%q.+?["\']' => q<printf %q>,
|
|
|
- );
|
|
|
-
|
|
|
- %singlequote_bashisms = (
|
|
|
- $LEADIN
|
|
|
- . qr'echo\s+(?:-[^e\s]+\s+)?\'[^\']*(\\[abcEfnrtv0])+.*?[\']' =>
|
|
|
- q<unsafe echo with backslash>,
|
|
|
- $LEADIN
|
|
|
- . qr'source\s+[\"\']?(?:\.\/|\/|\$|[\w~.-])\S*' =>
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|
|
- q<should be '.', not 'source'>,
|
|
|
- );
|
|
|
-
|
|
|
- if ($opt_echo) {
|
|
|
- $bashisms{ $LEADIN . qr'echo\s+-[A-Za-z]*n' } = q<echo -n>;
|
|
|
- }
|
|
|
- if ($opt_posix) {
|
|
|
- $bashisms{ $LEADIN . qr'local\s+\w+(\s+\W|\s*[;&|)]|$)' }
|
|
|
- = q<local foo>;
|
|
|
- $bashisms{ $LEADIN . qr'local\s+\w+=' } = q<local foo=bar>;
|
|
|
- $bashisms{ $LEADIN . qr'local\s+\w+\s+\w+' } = q<local x y>;
|
|
|
- $bashisms{ $LEADIN . qr'((?:test|\[)\s+.+\s-[ao])\s' } = q<test -a/-o>;
|
|
|
- $bashisms{ $LEADIN . qr'kill\s+-[^sl]\w*' } = q<kill -[0-9] or -[A-Z]>;
|
|
|
- $bashisms{ $LEADIN . qr'trap\s+["\']?.*["\']?\s+.*[1-9]' }
|
|
|
- = q<trap with signal numbers>;
|
|
|
- }
|
|
|
-
|
|
|
- if ($makefile) {
|
|
|
- $string_bashisms{qr'(\$\(|\`)\s*\<\s*([^\s\)]{2,}|[^DF])\s*(\)|\`)'}
|
|
|
- = q<'$(\< foo)' should be '$(cat foo)'>;
|
|
|
- } else {
|
|
|
- $bashisms{ $LEADIN . qr'\w+\+=' } = q<should be VAR="${VAR}foo">;
|
|
|
- $string_bashisms{qr'(\$\(|\`)\s*\<\s*\S+\s*(\)|\`)'}
|
|
|
- = q<'$(\< foo)' should be '$(cat foo)'>;
|
|
|
- }
|
|
|
-
|
|
|
- if ($opt_extra) {
|
|
|
- $string_bashisms{qr'\$\{?BASH\}?\b'} = q<$BASH>;
|
|
|
- $string_bashisms{qr'(?:^|\s+)RANDOM='} = q<RANDOM=>;
|
|
|
- $string_bashisms{qr'(?:^|\s+)(OS|MACH)TYPE='} = q<(OS|MACH)TYPE=>;
|
|
|
- $string_bashisms{qr'(?:^|\s+)HOST(TYPE|NAME)='} = q<HOST(TYPE|NAME)=>;
|
|
|
- $string_bashisms{qr'(?:^|\s+)DIRSTACK='} = q<DIRSTACK=>;
|
|
|
- $string_bashisms{qr'(?:^|\s+)EUID='} = q<EUID=>;
|
|
|
- $string_bashisms{qr'(?:^|\s+)UID='} = q<UID=>;
|
|
|
- $string_bashisms{qr'(?:^|\s+)BASH(_[A-Z]+)?='} = q<BASH(_SOMETHING)=>;
|
|
|
- $string_bashisms{qr'(?:^|\s+)SHELLOPTS='} = q<SHELLOPTS=>;
|
|
|
- $string_bashisms{qr'\$\{?POSIXLY_CORRECT\}?\b'} = q<$POSIXLY_CORRECT>;
|
|
|
- }
|
|
|
-}
|
ng0