From f82e2fe8e885ea981fcf8d432d09955e1fa3dbf0 Mon Sep 17 00:00:00 2001
From: zenith <v6z777@protonmail.com>
Date: Fri, 9 Jan 2026 15:56:29 -0500
Subject: [PATCH] Add update utility

---
 README.md |   7 ++++
 update.sh | 112 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 119 insertions(+)
 create mode 100755 update.sh

diff --git a/README.md b/README.md
index 07571c6..2a75c23 100644
--- a/README.md
+++ b/README.md
@@ -98,4 +98,11 @@ while running `rigctld`
 ```
 
 
+## Updating
 
+modem73 comes included with a update utility `update.sh`
+
+To update to the latest version:
+```
+./update.sh
+```
\ No newline at end of file
diff --git a/update.sh b/update.sh
new file mode 100755
index 0000000..303ac63
--- /dev/null
+++ b/update.sh
@@ -0,0 +1,112 @@
+#!/usr/bin/env bash
+#
+# modem73 update script
+# https://github.com/RFnexus/modem73
+#
+
+set -e
+
+REPO_URL="https://github.com/RFnexus/modem73.git"
+INSTALL_DIR="${MODEM73_DIR:-$HOME/modem73}"
+
+if [ -t 1 ]; then
+    RED='\033[0;31m'
+    GREEN='\033[0;32m'
+    YELLOW='\033[1;33m'
+    NC='\033[0m'
+else
+    RED=''
+    GREEN=''
+    YELLOW=''
+    NC=''
+fi
+
+info()  { echo -e "${GREEN}[INFO]${NC} $1"; }
+warn()  { echo -e "${YELLOW}[WARN]${NC} $1"; }
+error() { echo -e "${RED}[ERROR]${NC} $1"; exit 1; }
+
+command -v git >/dev/null 2>&1 || error "git is required but not installed"
+command -v make >/dev/null 2>&1 || error "make is required but not installed"
+
+
+if command -v g++ >/dev/null 2>&1; then
+    CXX="g++"
+elif command -v clang++ >/dev/null 2>&1; then
+    CXX="clang++"
+else
+    error "C++ compiler (g++ or clang++) is required but not installed"
+fi
+
+info "modem73 updater"
+echo "  Repository: $REPO_URL"
+echo "  Install to: $INSTALL_DIR"
+echo ""
+
+if [ -d "$INSTALL_DIR/.git" ]; then
+    info "Updating = installation..."
+    cd "$INSTALL_DIR"
+    
+    if ! git diff --quiet 2>/dev/null; then
+        warn "Local changes detected. Stashing..."
+        git stash
+    fi
+    
+    BRANCH=$(git rev-parse --abbrev-ref HEAD)
+    
+    git fetch origin
+    LOCAL=$(git rev-parse HEAD)
+    REMOTE=$(git rev-parse "origin/$BRANCH")
+    
+    if [ "$LOCAL" = "$REMOTE" ]; then
+        info "Already up to date"
+        NEEDS_BUILD=0
+    else
+        info "Pulling updates..."
+        git pull --ff-only origin "$BRANCH"
+        NEEDS_BUILD=1
+    fi
+else
+    info "Cloning repository..."
+    mkdir -p "$(dirname "$INSTALL_DIR")"
+    git clone "$REPO_URL" "$INSTALL_DIR"
+    cd "$INSTALL_DIR"
+    NEEDS_BUILD=1
+fi
+
+# Build
+if [ "${NEEDS_BUILD:-1}" = "1" ] || [ "$1" = "--force" ]; then
+    info "Building modem73..."
+
+
+
+    make clean 2>/dev/null || true
+    
+
+
+    if make -j"$(nproc 2>/dev/null || echo 2)"; then
+        info "Build sucessful!"
+        
+
+
+
+        echo ""
+        echo "  Commit: $(git rev-parse --short HEAD)"
+        echo "  Date:   $(git log -1 --format=%ci)"
+        echo ""
+        
+
+
+
+        if [ -f "$INSTALL_DIR/modem73" ]; then
+            info "Binary: $INSTALL_DIR/modem73"
+        fi
+    else
+        error "Build failed"
+    fi
+else
+    info "No build needed (use --force to rebuild)"
+fi
+
+
+
+info "Done!"