Change file descriptors and add functions

1 files changed, 31 insertions, 19 deletions

@@ -65,6 +65,13 @@ die() { # die [EXIT-CODE] MESSAGE
         exit "$ec"
 }
 
+# ask the user for input
+ask() { # ask PROMPT [READ_OPT...]
+        prompt="$1"
+        shift
+        read -e -r -u 3 -p "$prompt> " "$@"
+}
+
 # fail if something isn't installed
 require() { hash "$1" 2>/dev/null || die 127 "Requirement '$1' not found."; }
 
@@ -135,7 +142,7 @@ handle() { # handle URL < RESPONSE
         1*) # INPUT
                 log 3 "Input"
                 put "$meta"
-                read -rep "? "
+                ask "?"
                 bollux "$URL?$REPLY"
                 ;;
         2*) # SUCCESS
@@ -219,44 +226,48 @@ display() { # display MIMETYPE < DOCUMENT
                 # ($LESSOPEN, $LESSCLOSE)
                 ;;
         *)
-                tn="$(mktemp)"
-                dd status=progress >"$tn"
-                fn="$DLDR/${URL##*/}"
-                if [[ -f "$fn" ]]; then
-                        log - "Saved '$tn'."
-                else
-                        if mv "$tn" "$fn"; then
-                                log - "Saved '$fn'."
-                        else
-                                log 0 "Error saving '$fn'."
-                        fi
-                fi
+                download "$URL"
                 ;;
         esac
 }
 
+download() { # download URL < FILE
+        tn="$(mktemp)"
+        dd status=progress >"$tn"
+        fn="$DLDR/${URL##*/}"
+        if [[ -f "$fn" ]]; then
+                log - "Saved '$tn'."
+        else
+                if mv "$tn" "$fn"; then
+                        log - "Saved '$fn'."
+                else
+                        log 0 "Error saving '$fn'."
+                        log - "Saved '$tn'."
+                fi
+        fi
+}
+
 ### main entry point ###
 bollux() {
-        bollux_setup
+        # use &3 for user input
+        exec 3<>/dev/tty
 
         if (($# == 1)); then
                 URL="$1"
         else
-                read -r -u 3 -p "GO> " URL
+                ask GO URL
         fi
 
         log 5 "URL : $URL"
 
-        request "$URL" >.resource &
-        handle "$URL" <.resource
-
-        bollux_cleanup
+        request "$URL" | handle "$URL"
 }
 
 bollux_setup() {
         mkfifo .resource
         trap bollux_cleanup INT QUIT TERM EXIT
 }
+
 bollux_cleanup() {
         echo
         rm -f .resource
@@ -272,4 +283,5 @@ if [[ "${BASH_SOURCE[0]}" == "$0" ]]; then
         require sed
 
         bollux "$@"
+        echo
 fi