From 4091d2142d4f3dfe867463c5f389e343b6f988a4 Mon Sep 17 00:00:00 2001
From: pvincent <pvincent@artcode.re>
Date: Fri, 7 Aug 2026 00:39:30 +0400
Subject: [PATCH] fix

---
 README.md             |  3 ++-
 bin/miaou-bash        | 12 +++++++++++-
 lib/self-upgrade.bash | 12 ++++++++++--
 3 files changed, 23 insertions(+), 4 deletions(-)

diff --git a/README.md b/README.md
index 64a87da..48ddb12 100644
--- a/README.md
+++ b/README.md
@@ -31,11 +31,12 @@ Any feedback would be appreciated.
 ## install
 
 ```bash
-curl -s https://git.artcode.re/miaou/miaou-bash/raw/branch/main/install.sh | sudo bash && exec bash
+curl -s https://git.artcode.re/miaou/miaou-bash/raw/branch/main/install.sh | sudo -E bash && exec bash
 ```
 
 ## upgrade
 
+TODO: self-upgrade
 `upgrade-miaou-bash`
 
 ## uninstall
diff --git a/bin/miaou-bash b/bin/miaou-bash
index c849a37..a43c192 100755
--- a/bin/miaou-bash
+++ b/bin/miaou-bash
@@ -265,6 +265,14 @@ function on_error {
   fi
 }
 
+function self_upgrade {
+  sudo -E "$MIAOU_BASH_DIR/lib/self-upgrade.bash"
+}
+
+function uninstall {
+  echo "TODO: uninstall"
+}
+
 function populate_error_arrays {
 
   local source=$1 line=$2 payload=$3
@@ -601,7 +609,7 @@ function cleanup {
 }
 
 function usage {
-  echo "$(basename "$0") <SCRIPT> [...SCRIPT_ARGS] | --version | --help"
+  echo "$(basename "$0") <SCRIPT> [...SCRIPT_ARGS] | --version | --help | --self-upgrade | --uninstall"
 }
 
 function parse_options {
@@ -609,6 +617,8 @@ function parse_options {
   [[ $# == 1 ]] && case "$1" in
   --help) usage && builtin exit ;;
   --version) cat "$MIAOU_BASH_DIR/.semver_git_tag" && builtin exit ;;
+  --self-upgrade) self_upgrade && builtin exit ;;
+  --uninstall) uninstall && builtin exit ;;
   -*) >&2 echo "ERROR: option '$1' unknown!" && usage && builtin exit 2 ;;
   esac
   [[ $1 =~ ^- ]] && >&2 echo "ERROR: too many args $#, either single option or SCRIPT + args accepted!" && builtin exit 2
diff --git a/lib/self-upgrade.bash b/lib/self-upgrade.bash
index 8c69f3f..4485263 100755
--- a/lib/self-upgrade.bash
+++ b/lib/self-upgrade.bash
@@ -6,6 +6,14 @@
 
 # MAIN
 
-[ "$UID" -ne 0 ] && echo 'root privilege required' && exit 1
+[[ "$UID" -ne 0 ]] && echo 'root privilege required' && exit 1
 
-echo TODO: self-upgrade
+current=$(miaou-bash --version)
+latest=$("$MIAOU_BASH_DIR/tools/wget_semver" artcode miaou/miaou-bash)
+
+if [[ "$current" == "$latest" ]]; then
+  echo "up-to-date version: $current"
+  MIAOU_BASH_DIR='' source ../install.sh
+else
+  MIAOU_BASH_DIR='' source ../install.sh
+fi