Package: mime-support
Version: 3.54
Severity: wishlist
Tags: patch
File: /usr/bin/run-mailcap
If you elevate the vim entry in /usr/lib/mime/packages/vim-common in
~/.mailcap so that it is used,
text/plain; view %s; edit=vim %s; compose=vim %s; test=test -x
/usr/bin/vim; needsterminal; priority=4
and with /usr/bin/view alternative pointing to vim, then running
cat /etc/passwd | see text/plain:-
gives a warning from vim
Vim: Warning: Input is not from a terminal
and on exiting with :q vim leaves the terminal in raw mode.
I hoped that run-mailcap would redirect stdin to the tty when a mailcap
entry says needsterminal, ensuring the program is run with both stdin
and stdout as the tty. I get some joy from the change below.
--- run-mailcap.orig 2013-05-11 23:17:57.000000000 +1000
+++ run-mailcap 2013-10-23 11:43:47.000000000 +1100
@@ -431,6 +431,7 @@
my $done=0;
my $fail=0;
+ my $needsterminal;
foreach $match (@matches) {
my $comm;
print STDERR " - checking mailcap entry \"$match\"\n" if $debug;
@@ -449,14 +450,20 @@
}
my($tmpfile,$tmplink);
- if ($action ne 'print' && $match =~ m/;\s*needsterminal\s*($|;)/ && ! -t STDOUT) {
- if ($ENV{DISPLAY}) {
- $comm = "$xtermprgrm -T '$file ($type)' -e $0 --action=$action '${type}:%s'";
+ if ($action ne 'print' && $match =~ m/;\s*needsterminal\s*($|;)/) {
+ $needsterminal = 1;
+ if (-t STDOUT) {
+ print STDERR " - needsterminal is satisfied by stdout\n" if $debug;
} else {
- print STDERR " - no terminal available for rule (needsterminal)\n" if $debug;
- $fail++;
- next;
+ if ($ENV{DISPLAY}) {
+ $comm = "$xtermprgrm -T '$file ($type)' -e $0 --action=$action '${type}:%s'";
+ } else {
+ print STDERR " - no terminal available for rule (needsterminal)\n" if $debug;
+ $fail++;
+ next;
+ }
}
+
} elsif ($action eq 'view' && !$nopager && $match =~ m/;\s*copiousoutput\s*($|;)/ && $type ne 'text/plain') {
$comm .= " | $0 --action=$action text/plain:-";
}
@@ -509,6 +516,25 @@
if ($comm =~ m/[^%]%s/) {
$tmpfile = SaveStdin($match);
$comm =~ s/([^%])%s/$1$tmpfile/g;
+
+ # If needsterminal then redirect stdin to the tty which is
+ # on stdout, rather than leaving it as the input data stream
+ # which has now been read through to EOF.
+ #
+ # Some programs such as "more" and "less" already use
+ # /dev/tty rather than stdin. But "vim" on non-tty stdin
+ # gives a warning message and then leaves the tty in raw
+ # mode on exit. Or "nvi" refuses to run at all unless both
+ # stdin and stdout are the tty.
+ #
+ # RFC 1524 is silent on exactly what a program with
+ # "needsterminal" should expect, but it seems sensible to
+ # arrange that both stdin and stdout are the terminal for
+ # "needsterminal" with "%s".
+ #
+ if ($needsterminal) {
+ $comm .= ' <&1';
+ }
} else {
# no name means same as "-"... read from stdin
}
-- System Information:
Debian Release: jessie/sid
APT prefers unstable
APT policy: (990, 'unstable')
Architecture: i386 (i686)
Kernel: Linux 2.6.32-5-686 (SMP w/1 CPU core)
Locale: LANG=en_AU, LC_CTYPE=en_AU (charmap=ISO-8859-1)
Shell: /bin/sh linked to /bin/dash
mime-support depends on no packages.
Versions of packages mime-support recommends:
ii file 1:5.14-2
mime-support suggests no packages.
-- no debconf information
