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[url "git://git.madduck.net/madduck/"]
  insteadOf = madduck:

do not redefine aliases
[etc/mutt.git] / .mutt / bgrun
1 #!/bin/sh
2
3 SELF="${0##*/}"
4
5 if [ -z "$TMPDIR" ]; then
6   TMPDIR=/tmp
7 elif [ -d "${TMPDIR}/volatile" ]; then
8   TMPDIR="${TMPDIR}/volatile"
9 fi
10 export TMPDIR
11 TMPDIR=$(mktemp -dp "$TMPDIR" mutt.XXXXXXXXXX)
12 cleanup() { cd / && rm -rf "$TMPDIR"; }
13 trap cleanup 1 2 3 4 5 6 7 8 10 11 12 13 14 15
14
15 cd "$TMPDIR"
16
17 notify() {
18   if [ -x "$(command -v awesome-client)" ]; then
19     awesome-client <<-_eof
20         local naughty = require("naughty")
21         naughty.notify({ preset = naughty.config.presets.low,
22                 title  = "$3",
23                 text   = [[stdout:
24                 $(sed -e 's,\",\\\",g' "$1")
25                 stderr:
26                 $(sed -e 's,\",\\\",g' "$2")]]
27                 })
28         _eof
29   fi
30 }
31
32 guess_extension() {
33   python -c "import mimetypes; print(mimetypes.guess_extension('$1'))"
34 }
35
36 launch_viewer() {
37   run-mailcap --action=view "$1":"$2" > output.stdout 2> output.stderr
38 }
39
40 MIMETYPE="$1"; shift
41
42 get_file() {
43   local t
44   if [ -z "$1" ]; then
45     t=$(tempfile -d . -p mutt -s $(guess_extension "$MIMETYPE"))
46     cat > "$t"
47     echo "$t"
48   else
49     t="$(echo ${1##*/} | sed -re 's![^[:alnum:],.@%^+=_-]!_!gi')"
50     cp "$1" "$t"
51     echo "$t"
52   fi
53 }
54
55 case "$SELF" in
56   (bgrun)
57     # make a copy of the file, then launch a shell process in the background
58     # to divert to run-mailcap, after which the temporary directory gets
59     # cleaned up.
60     FILE="$(get_file "${1:-}")"
61     (
62       launch_viewer "$MIMETYPE" "$FILE"
63       if [ -s "$TMPDIR/output.stdout" ] || [ -s "$TMPDIR/output.stderr" ]; then
64         notify $TMPDIR/output.stdout $TMPDIR/output.stderr \
65           "Output from mutt/$SELF on $BASENAME"
66       fi
67       sleep 1
68       cleanup
69     ) &
70     trap - 1 2 3 4 5 6 7 8 10 11 12 13 14 15
71     ;;
72   (bgrun-fifo)
73     # hack to stay around until the viewer has read the file: make a fifo and
74     # wait for the cat process to finish writing to it, which means that it
75     # must have been consumed on the other end.
76     FILE="$(get_file "${1:-}")"
77     FIFO="${FILE%/*}/fifo-${FILE##*/}"
78     mkfifo "$FIFO"
79     cat "$FILE" > "$FIFO" &
80     # For some reason, we do have to write a tempfile and cannot seem to
81     # redirect stdin directly to the fifo, i.e. this does not work instead of
82     # the previous three lines:
83     ## cat > "$FIFO" &
84     launch_viewer "$MIMETYPE" "${FIFO}"
85     wait
86     cleanup
87     ;;
88 esac