From 4e93a2d8b757b554acbe5c791d3effe0abd43716 Mon Sep 17 00:00:00 2001
From: Andrew Cady <d@cryptonomic.net>
Date: Fri, 22 Oct 2021 09:38:29 -0400
Subject: automatic restarting of "iotop" to pick up new firefox pids

---
 fireslay | 89 +++++++++++++++++++++++++++++++++++++++++++++-------------------
 1 file changed, 63 insertions(+), 26 deletions(-)

(limited to 'fireslay')

diff --git a/fireslay b/fireslay
index 0b26c86..1926e19 100755
--- a/fireslay
+++ b/fireslay
@@ -1,10 +1,67 @@
 #!/bin/sh
 
-if [ "$1" = -q ]
-then
-    exec 2>/dev/null
-    shift
-fi
+die()
+{
+    printf '%s: Error: %s\n' "$0" "$*" >&2
+    exit 1
+}
+
+parseopts()
+{
+    while [ $# -gt 0 ]
+    do
+        case "$1" in
+            -q | --quiet )
+                exec 2>/dev/null
+                ;;
+            -y | --kill-last-process )
+                FIRESLAY_KILL_LAST_PROCESS=y
+                ;;
+            --)
+                shift
+                break
+                ;;
+            -* )
+                die unknown option
+                ;;
+            *)
+                break
+                ;;
+        esac
+        shift
+    done
+    [ $# = 0 ] || die usage
+}
+
+main()
+{
+    parseopts "$@"
+
+    set -- $(web_content_pids)
+
+    (
+        case $# in
+            0 ) echo "$0: Warning: Not slaying: no Web Content process found." >&2
+                exit
+                ;;
+            1 ) if ! [ "$FIRESLAY_KILL_LAST_PROCESS" ]
+                then
+                    echo "$0: Warning: Not slaying: only one 'Web Content' process.  Specify -y to kill it." >&2
+                    exit
+                fi
+                ;;
+            * ) shift
+                ;;
+        esac
+        set -x
+        ps $* >&2
+        kill $*
+    )
+
+    r=$?
+    ps $* >&2
+    exit $r
+}
 
 web_content_pids()
 {
@@ -18,25 +75,5 @@ web_content_pids()
     }
 }
 
-set -- $(web_content_pids | tac)
+main "$@"
 
-case $# in
-    0)
-        echo "$0: Warning: Not slaying: no Web Content process found." >&2
-        exit
-        ;;
-    1)
-        echo "$0: Warning: Not slaying: only one Web Content process found." >&2
-        ps $* >&2
-        exit
-        ;;
-esac
-
-(
-    set -x
-    ps $1 >&2
-    kill $1
-)
-r=$?
-ps $* >&2
-exit $r
-- 
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