From de0ad58d97d559da2faa94a0058cffd5c7b6b57f Mon Sep 17 00:00:00 2001
From: AluminumTank <joel@beckmeyer.us>
Date: Sat, 30 Jan 2021 17:30:41 -0500
Subject: [PATCH] add script and update readme

---
 README.md |  3 ++-
 doasedit  | 27 +++++++++++++++++++++++++++
 2 files changed, 29 insertions(+), 1 deletion(-)
 create mode 100755 doasedit

diff --git a/README.md b/README.md
index 2f51141..df5d864 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,3 @@
 # doasedit
-a Bash script replacement for sudoedit using doas
+a Bash script replacement for sudoedit using doas.
+[Inspired by this Reddit comment.](https://www.reddit.com/r/linux/comments/l6y7nv/is_doas_a_good_alternative_to_sudo/gl4hs42?utm_source=share&utm_medium=web2x&context=3)
diff --git a/doasedit b/doasedit
new file mode 100755
index 0000000..dbac0e5
--- /dev/null
+++ b/doasedit
@@ -0,0 +1,27 @@
+#!/bin/sh
+
+destfile_pfx="$(cat /dev/urandom | tr -cd 'a-f0-9' | head -c 32)"
+
+while [ -d "/tmp/doasedit/$destfile_pfx" ]; do
+	destfile_pfx="$(cat /dev/urandom | tr -cd 'a-f0-9' | head -c 32)"
+done
+
+mkdir -p /tmp/doasedit/$destfile_pfx
+srcfile="$(realpath $1)"
+
+doas cp $srcfile /tmp/doasedit/$destfile_pfx/edit
+doas chown -R $USER:$USER /tmp/doasedit/$destfile_pfx/edit
+doas cp $srcfile /tmp/doasedit/$destfile_pfx/file
+
+$EDITOR /tmp/doasedit/$destfile_pfx/edit
+
+
+cat /tmp/doasedit/$destfile_pfx/edit | doas tee /tmp/doasedit/$destfile_pfx/file 1>/dev/null
+
+if cmp -s "/tmp/doasedit/$destfile_pfx/file" "$srcfile"; then
+	echo "Skipping write; no changes."
+else
+	doas mv -f /tmp/doasedit/$destfile_pfx/file $srcfile
+fi
+
+rm -rf /tmp/doasedit/$destfile_pfx