From dcd6982fd6af6679611a327524e478c8eaf4bc0a Mon Sep 17 00:00:00 2001
From: Dan <dev.github@dan.dcesa.cc>
Date: Wed, 3 Jun 2026 09:53:36 +0800
Subject: [PATCH] feat: added ssh launcher

---
 ssh.sh | 133 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 133 insertions(+)
 create mode 100755 ssh.sh

diff --git a/ssh.sh b/ssh.sh
new file mode 100755
index 0000000..fbf6475
--- /dev/null
+++ b/ssh.sh
@@ -0,0 +1,133 @@
+#!/bin/sh
+
+set -eu
+
+KNOWN_CRED_FILE="$HOME/.ssh/known_creds"
+KNOWN_HOSTS_FILE="$HOME/.ssh/known_hosts"
+
+# === 1. Load credentials from file ===
+TMP_CREDS=$(mktemp)
+trap 'rm -f "$TMP_CREDS"' EXIT
+if [ -f "$KNOWN_CRED_FILE" ]; then
+    cp "$KNOWN_CRED_FILE" "$TMP_CREDS"
+fi
+
+# === 2. Parse known_hosts (deduped) ===
+TMP_HOSTS=$(mktemp)
+trap 'rm -f "$TMP_CREDS" "$TMP_HOSTS"' EXIT
+if [ -f "$KNOWN_HOSTS_FILE" ]; then
+    grep -v '^[[:space:]]*#' "$KNOWN_HOSTS_FILE" | \
+    awk '
+    {
+        split($1, parts, ",")
+        for (i in parts) {
+            h = parts[i]
+            gsub(/[][]/, "", h)
+            port = 22
+            if (match(h, /:[0-9]+$/)) {
+                port = substr(h, RSTART+1)
+                h = substr(h, 1, RSTART-1)
+            }
+            key = h ":" port
+            if (!(key in seen)) { seen[key] = 1; print h "|" port }
+        }
+    }' > "$TMP_HOSTS"
+fi
+
+# Check if hosts found
+if [ ! -s "$TMP_HOSTS" ]; then
+    echo "⚠️  No hosts in ~/.ssh/known_hosts. Run 'ssh user@host' first." >&2
+    exit 1
+fi
+
+# === 3. Build menu + store full credentials ===
+hosts_data=()
+echo "📋 Available hosts:"
+i=1
+while IFS='|' read -r host port; do
+    user=""
+    pass=""
+    # Safely extract credentials (avoid grep failure)
+    match=$(grep "^$host|" "$TMP_CREDS" 2>/dev/null | head -n1) || true
+    if [ -n "$match" ]; then
+        IFS='|' read -r _ user _ pass <<< "$match"
+    fi
+
+    # Determine mode: 1 = auto-pass, 0 = manual
+    mode=0
+    if [ -n "$user" ] && [ -n "$pass" ]; then
+        mode=1
+    fi
+
+    hosts_data+=("$host|$port|$user|$pass|$mode")
+    if [ "$mode" -eq 1 ]; then
+        echo "$i) $host ($port) — $user (auto-pass)"
+    else
+        echo "$i) $host ($port)"
+    fi
+    i=$((i + 1))
+done < "$TMP_HOSTS"
+echo "$i) Cancel"
+
+# === 4. Prompt for host ===
+PS3="Select: "
+while true; do
+    read -r choice || exit 0
+    if [ "$choice" = "$i" ]; then
+        echo "Cancelled."
+        exit 0
+    elif [ "$choice" -ge 1 ] && [ "$choice" -lt "$i" ]; then
+        break
+    fi
+    echo "Invalid. Try again:"
+done
+
+# Extract selected host/credentials
+item="${hosts_data[$((choice-1))]}"
+IFS='|' read -r host port user pass mode <<< "$item"
+
+# === 5. Get credentials if not auto-pass ===
+if [ "$mode" -eq 0 ]; then
+    read -rp "Username [$USER]: " user
+    user="${user:-$USER}"
+
+    stty -echo 2>/dev/null || true
+    read -rp "Password: " pass
+    stty echo 2>/dev/null || true
+    echo
+
+    # Save if requested
+    read -rp "Save credentials? [y/N]: " save
+    if [ "$save" = "y" ] || [ "$save" = "Y" ]; then
+        if [ -f "$KNOWN_CRED_FILE" ]; then
+            grep -v "^$host|" "$KNOWN_CRED_FILE" > "${KNOWN_CRED_FILE}.tmp" || true
+            mv "${KNOWN_CRED_FILE}.tmp" "$KNOWN_CRED_FILE"
+        fi
+        echo "$host|$user|$port|$pass" >> "$KNOWN_CRED_FILE"
+        chmod 600 "$KNOWN_CRED_FILE"
+    fi
+fi
+
+# === 6. Launch SSH — reuse existing window/pane ===
+# Ensure sshpass is available
+if ! command -v sshpass >/dev/null 2>&1; then
+    echo "⚠️  Install sshpass: brew install hudochenkov/sshpass/sshpass"
+    exit 1
+fi
+
+# Get WezTerm pane ID if available
+pane_id=""
+if osascript -e 'application "WezTerm" is running' >/dev/null 2>&1; then
+    pane_id=$(wezterm cli list-panes -q 2>/dev/null | head -n1 | cut -d' ' -f1) || true
+fi
+
+# Create safe command with quoted password
+safe_cmd=$(printf 'sshpass -p %q ssh -p %s %s@%s' "$pass" "$port" "$user" "$host")
+
+# Reuse pane or spawn new tab
+if [ -n "$pane_id" ]; then
+    wezterm cli send-text --pane "$pane_id" "$safe_cmd\n"
+else
+    # Fallback: spawn new tab in existing window
+    wezterm cli spawn --cwd "$HOME" -- sh -c "$safe_cmd"
+fi