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SGI Freeware 1998 November
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Freeware November 1998.img
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dist
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fw_common.idb
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usr
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freeware
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bin
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fixpath.z
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fixpath
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Text File
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1998-10-27
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7KB
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305 lines
eval 'exec perl -S $0 "$@"'
if 0;
# fixpath - add/remove paths from startup files.
# $Id: fixpath,v 1.1 1998/01/11 16:31:46 kjw Exp $
#
&main;
exit 0;
sub main
{
@files = ();
$shell = $ENV{'SHELL'};
$home = $ENV{'HOME'};
@info = getpwuid($>);
if ($#info == -1) {
die "$0: can't find passwd entry for UID $>\n";
}
$home = $info[7] unless ($home ne "");
$shell = $info[8] unless ($shell ne "");
# Make sure we are doing the right thing.
open(TTY, "/dev/tty") || die "$0: No tty";
select(STDOUT);
$| = 1;
$ok = 0;
while (!$ok) {
do {
print "Your shell seems to be $shell, is that correct? ";
$ans = <TTY>;
print "Please use yes/no for your answer.\n"
unless $ans =~ /^[yYnN]/;
} while ($ans !~ /^[yYnN]/);
if ($ans =~ /^[yY]/) {
$ok = 1;
} else {
print "What is your shell? ";
$shell = <TTY>;
chop($shell);
}
}
# XXX - don't handle zsh - couldn't find a man page.
$shell =~ s|.*/||;
$ok = 0;
foreach $s ('sh', 'ksh', 'bash', 'csh', 'tcsh') {
$ok = 1 if $s eq $shell;
}
if (!$ok) {
die "$0: I don't know what to do for your '$shell' shell.\n";
}
# Depending on which shell it is, figure out the file.
if ($shell eq "sh") {
push(files, "$home/.profile");
$default = "$home/.profile";
}
if ($shell eq "csh") {
foreach $f ('.login', '.cshrc') {
if (-e "$home/$f" && &haspath("$home/$f")) {
push(files, "$home/$f");
}
}
if ($#files == -1) {
push(files, "$home/.login");
}
$default = "$home/.login";
}
if ($shell eq "tcsh") {
foreach $f ('.login', '.tcshrc', '.cshrc') {
if (-e "$home/$f" && &haspath("$home/$f")) {
push(files, "$home/$f");
}
}
if ($#files == -1) {
push(files, "$home/.login");
}
$default = "$home/.login";
}
if ($shell eq "ksh") {
foreach $f ('.kshrc', '.profile') {
if (-e "$home/$f" && &haspath("$home/$f")) {
push(files, "$home/$f");
}
}
if ($#files == -1) {
push(files, "$home/.profile");
}
$default = "$home/.profile";
}
if ($shell eq "bash") {
foreach $f ('.bashrc', '.bash_profile', '.bash_login', '.profile') {
if (-e "$home/$f" && &haspath("$home/$f")) {
push(files, "$home/$f");
}
}
if ($#files == -1) {
push(files, "$home/.profile");
}
$default = "$home/.profile";
}
# OK, now we have set up the following:
# $shell is the users shell.
# @files is the list of files that had one or more of the PATH things.
#warn "shell = $shell\nfiles = @files\n";
foreach $f (@files) {
&fixpath($f);
}
if (!$path) {
&addpath("PATH", '$PATH:/usr/freeware/bin', $default);
}
if (!$manpath) {
&addpath("MANPATH", '/usr/share/catman:/usr/share/man:/usr/catman:/usr/man:/usr/freeware/catman:/usr/freeware/man', $default);
}
if (!$X) {
&addpath("XFILESEARCHPATH", '/usr/lib/X11/%T/%N:/usr/freeware/lib/X11/%T/%N', $default);
}
}
sub addpath
{
local($which, $p, $file) = @_;
print "Adding new variable $which to $file\n";
if ($shell =~ /csh/) {
system("echo setenv $which '$p' >> $file");
} else {
system("echo $which='$p' >> $file");
system("echo export $which >> $file");
}
}
sub fixpath
{
open(F, $f) || die "$0: can't open $f\n";
open(N, ">/tmp/new$$");
while (<F>) {
if (/^\s*PATH=/ || /XFILESEARCHPATH=/ ||
/MANPATH=/ || /set\s+path\s*=\s*\(/ ||
/setenv\s+PATH\s+/ || /setenv\s+MANPATH\s+/ ||
/setenv\s+XFILESEARCHPATH/) {
$manpath = 1 if /MANPATH/;
$X = 1 if /XFILESEARCHPATH/;
$path = 1 if /^\s*PATH=/ ||
/set\s+path\s*=\s*\(/ || /setenv\s+PATH\s+/;
chop;
do {
$new = &fixit($f, $_);
} while ($new eq "");
$_ = "$new\n";
}
print N;
}
close(N);
print "\nDiff of $f vs. new:\n";
system("diff $f /tmp/new$$");
do {
print "Use new file? ";
$ans = <TTY>;
print "Please answer y/n" unless $ans =~ /^[yYnN]/;
} while ($ans !~ /^[yYnN]/);
if ($ans =~ /^[yY]/) {
system("cp $f $f.bak");
system("cp /tmp/new$$ $f");
print "Relogin or source $f to have changes take effect.\n";
print "$f.bak is the previous version of your file.\n";
}
unlink("/tmp/new$$");
}
sub fixit
{
local($file, $line) = @_;
if ($line =~ /^\s*PATH=/) {
$var = "PATH";
$add = "/usr/freeware/bin";
} elsif ($line =~ /XFILESEARCHPATH=/) {
$var = "XFILESEARCHPATH";
$add = "/usr/freeware/lib/X11/%T/%N"; # XXX? check this.
} elsif ($line =~ /MANPATH=/) {
$var = "MANPATH";
$add = "/usr/freeware/catman:/usr/freeware/man";
} elsif ($line =~ /set\s+path\s*=\s*\(/) {
$var = "path";
$add = "/usr/freeware/bin";
} elsif ($line =~ /setenv\s+PATH\s+/) {
$var = "PATH";
$add = "/usr/freeware/bin";
} elsif ($line =~ /setenv\s+MANPATH\s+/) {
$var = "MANPATH";
$add = "/usr/freeware/catman:/usr/freeware/man";
} elsif ($line =~ /setenv\s+XFILESEARCHPATH\s+/) {
$var = "XFILESEARCHPATH";
$add = "/usr/freeware/lib/X11/%T/%N"; # XXX? check this.
}
# This is really tacky, but I want to catch multi line paths.
while ($line =~ m|.*\s*\\\s*$|) {
$_ = <F>;
$line .= $_;
}
$save = $line;
do {
#print "\nIn $file, your $var variable is:\n";
#print "\n$line\n";
if ($line =~ "$add") {
$q = "\nRemove $add from \$$var in $file? ";
} else {
$q = "\nAdd $add to \$$var in $file? ";
}
print $q;
$ans = <TTY>;
print "Please use yes/no for your answer.\n"
unless $ans =~ /^[yYnN]/;
} while ($ans !~ /^[yYnN]/);
if ($ans !~ /^[yY]/) {
print "OK, skipping this one.\n";
return $save;
}
# Remove case.
if ($line =~ m|$add|) {
if ($line =~ m|:$add|) {
$line =~ s|:$add||;
} elsif ($line =~ m|$add:|) {
$line =~ s|$add:||;
} else {
$line =~ s|$add||;
}
return $line;
}
# Add case.
$start = $stop = "";
@line = ();
if ($var eq "path") {
$line =~ /(.*set\s+path\s*=\s*\()(.*)(\))/;
$join = " "; $start = $1; $line = $2; $stop = " $3";
} elsif ($line =~ /setenv/) {
$line =~ /(.*setenv\s+$var\s+)(.*)/;
$join = ":"; $start = $1; $line = $2; $stop = "";
} else {
if ($line =~ /(\"\s*$)/) {
$stop = '"';
$line =~ s/\"\s*$//;
}
$line =~ /(.*$var=\"?)(.*)/;
$join = ":"; $start = $1; $line = $2;
}
@line = split(/[:\s]/, $line);
#print "<$start> <$line> <$stop>\n";
do {
print "\nYour $var is: @line\n";
$n = $#line + 1;
print "You can put $add anywhere in this path.\n";
print "To put it first, type '1',\n";
print "to put it last, type '\$',\n";
print "and to put it in the middle, type 2 for second, 3 for fourth, etc.\n";
print "Your $var currently has $n paths, 1..$n.\n";
print "\nPut $add where? ";
chop($ans = <TTY>);
} while ($ans !~ /^[\$1-9]/);
if ($ans eq '$') {
push(line, "$add");
} else {
@new = ();
$ans--;
# XXX - check for out of bounds!
for ($i = 0; $i < $ans; $i++) {
push(new, shift(line));
}
push(new, "$add");
push(new, @line);
@line = @new;
}
$line = $start . join($join, @line) . $stop;
return $line;
}
# Look for a path/PATH variable. Leaves F open, but it gets reused.
sub haspath
{
local($f) = @_;
open(F, $f) || die "$0: can't open $f\n";
while (<F>) {
# sh types
return 1 if /^\s*PATH=/ || /XFILESEARCHPATH=/ || /MANPATH=/;
# csh types
return 1 if /set\s+path\s*=\s*\(/ || /setenv\s+PATH\s+/ ||
/setenv\s+MANPATH\s+/ || /setenv\s+XFILESEARCHPATH/;
}
return 0;
}