From c58983ebed266f916914bd736dfbf7b03eb35eb0 Mon Sep 17 00:00:00 2001
From: "martin f. krafft" <madduck@madduck.net>
Date: Tue, 14 Aug 2018 11:17:04 +1200
Subject: [PATCH] Handle attachments via stdin

---
 .mutt/bgrun                 | 28 +++++++++++++++++++++-------
 .mutt/mailcap.backgrounding |  6 +++---
 2 files changed, 24 insertions(+), 10 deletions(-)

diff --git a/.mutt/bgrun b/.mutt/bgrun
index 260925c..937542d 100755
--- a/.mutt/bgrun
+++ b/.mutt/bgrun
@@ -29,15 +29,24 @@ notify() {
   fi
 }
 
+guess_extension() {
+  python -c "import mimetypes; print(mimetypes.guess_extension('$1'))"
+}
+
+launch_viewer() {
+  run-mailcap --action=view "$1":"$2" > output.stdout 2> output.stderr
+}
+
 case "$SELF" in
   (bgrun)
     # make a copy of the file, then launch a shell process in the background
     # to divert to run-mailcap, after which the temporary directory gets
     # cleaned up.
-    cp -a "$1" $TMPDIR
-    MIMETYPE="$2"
+    MIMETYPE="$1"
+    TEMPFILE=$(tempfile -d . -p mutt -s $(guess_extension "$MIMETYPE"))
+    cat > "$TEMPFILE"
     (
-      run-mailcap --action=view "$MIMETYPE":"$TEMPFILE"
+    launch_viewer "$MIMETYPE" "$TEMPFILE"
       if [ -s "$TMPDIR/output.stdout" ] || [ -s "$TMPDIR/output.stderr" ]; then
         notify $TMPDIR/output.stdout $TMPDIR/output.stderr \
           "Output from mutt/$SELF on $BASENAME"
@@ -50,10 +59,15 @@ case "$SELF" in
     # hack to stay around until the browser has read the file: make a fifo and
     # wait for the cat process to finish writing to it, which means that it
     # must have been consumed on the other end.
-    mkfifo "$TEMPFILE"
-    INPUTFILE="$1"
-    cat "$INPUTFILE" > $TEMPFILE &
-    sensible-browser "$TEMPFILE" > $TMPDIR/output.stdout 2> $TMPDIR/output.stderr
+    mkfifo mutt.html
+    TEMPFILE=$(tempfile -d . -p mutt -s .html)
+    cat > "$TEMPFILE"
+    cat "$TEMPFILE" > mutt.html &
+    # For some reason, we do have to write a tempfile and cannot seem tu
+    # redirect stdin directly to the fifo, i.e. this does not work instead of
+    # the previous three lines:
+    ## cat > mutt.html &
+    launch_viewer text/html ${PWD}/mutt.html
     wait
     cleanup
     ;;
diff --git a/.mutt/mailcap.backgrounding b/.mutt/mailcap.backgrounding
index 37b57ed..0345c30 100644
--- a/.mutt/mailcap.backgrounding
+++ b/.mutt/mailcap.backgrounding
@@ -1,6 +1,6 @@
 #
 # Mutt mailcap for backgrounding 
 
-text/html; ~/.mutt/browserrun %s; description=Open file in browser via FIFO
-application/*; ~/.mutt/bgrun %s %t; description=Backgrounded run of run-mailcap
-image/*; ~/.mutt/bgrun %s %t; description=Backgrounded run of run-mailcap
+text/html; ~/.mutt/browserrun; description=Open file in browser via FIFO
+application/*; ~/.mutt/bgrun %t; description=Backgrounded run of run-mailcap
+image/*; ~/.mutt/bgrun %t; description=Backgrounded run of run-mailcap
-- 
2.39.2