Add nnn

dot_config/nnn/plugins/executable_diffs

@@ -0,0 +1,62 @@
+#!/usr/bin/env sh
+
+# Description: Show diff of 2 directories or multiple files in vimdiff
+#
+# Notes:
+#   1. vim may show the warning: 'Vim: Warning: Input is not from a terminal'
+#      press 'Enter' to ignore and proceed.
+#   2. if only one file is in selection, the hovered file is considered as the
+#      second file to diff with
+#
+# Shell: POSIX compliant
+# Authors: Arun Prakash Jana, ath3
+
+selection=${NNN_SEL:-${XDG_CONFIG_HOME:-$HOME/.config}/nnn/.selection}
+
+if type nvim >/dev/null 2>&1; then
+    diffcmd="nvim -d"
+else
+    diffcmd="vimdiff +0"
+fi
+
+dirdiff() {
+    dir1=$(mktemp "${TMPDIR:-/tmp}"/nnn-"$(basename "$1")".XXXXXXXX)
+    dir2=$(mktemp "${TMPDIR:-/tmp}"/nnn-"$(basename "$2")".XXXXXXXX)
+    ls -A1 "$1" > "$dir1"
+    ls -A1 "$2" > "$dir2"
+    $diffcmd "$dir1" "$dir2"
+    rm "$dir1" "$dir2"
+}
+
+if [ -s "$selection" ]; then
+    arr=$(tr '\0' '\n' < "$selection")
+    if [ "$(echo "$arr" | wc -l)" -gt 1 ]; then
+        f1="$(echo "$arr" | sed -n '1p')"
+        f2="$(echo "$arr" | sed -n '2p')"
+        if [ -d "$f1" ] && [ -d "$f2" ]; then
+            dirdiff "$f1" "$f2"
+        else
+            # If xargs supports the -o option, use it to get rid of:
+            #     Vim: Warning: Input is not from a terminal
+            # xargs -0 -o vimdiff < $selection
+
+            eval xargs -0 "$diffcmd" < "$selection"
+        fi
+    elif [ -n "$1" ]; then
+        f1="$(echo "$arr" | sed -n '1p')"
+        if [ -d "$f1" ] && [ -d "$1" ]; then
+            dirdiff "$f1" "$1"
+        elif [ -f "$f1" ] && [ -f "$1" ]; then
+            $diffcmd "$f1" "$1"
+        else
+            echo "cannot compare file with directory"
+        fi
+    else
+        echo "needs at least 2 files or directories selected for comparison"
+    fi
+fi
+
+# Clear selection
+if [ -p "$NNN_PIPE" ]; then
+    printf "-" > "$NNN_PIPE"
+fi