From 9a62f2bc5e113bff13cce60e576f5e9bc5c4f0b1 Mon Sep 17 00:00:00 2001
From: shim_ <>
Date: Thu, 4 Oct 2018 16:30:46 +0200
Subject: [PATCH] handle existing install

---
 scripts/upgrade.py | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/scripts/upgrade.py b/scripts/upgrade.py
index 82cc1cc..5d649a0 100755
--- a/scripts/upgrade.py
+++ b/scripts/upgrade.py
@@ -37,6 +37,14 @@ def list_command(page="https://www.seafile.com/en/download/"):
 def current_version_command():
     print(current_version())
 
+def installed_versions():
+    installed = []
+    for f in os.listdir(seaf_home):
+       m = re.findall(version_re,f)
+       if len(m) > 0:
+          installed.append(m[0])
+    return installed
+
 def current_version():
     current = os.path.realpath(os.path.join(seaf_home, "seafile-server-latest"))
     res = re.findall(version_re,current)
@@ -80,6 +88,7 @@ def install_command(url):
              if not os.path.exists(dest):           
                 shutil.move(os.path.join(tmp,f), dest)
              else:
+                shutil.rmtree(tmp)
                 print("Found previous installation, resuming setup")
              current = current_version()
              target_version = ''.join(re.findall(version_re,dest))
@@ -87,7 +96,7 @@ def install_command(url):
              else: current = "0.0.0"
              print("Upgrading from: %s -> %s" % (current, target_version))
              perform_upgrade_command(target_version,mysql=("SEAF_MYSQL" in os.environ and os.environ["SEAF_MYSQL"]))
-      if len(os.listdir(tmp)) != 0:
+      if os.exists(tmp) and len(os.listdir(tmp)) != 0:
          print("Failed to unpack update")
          os.rmdir(tmp)
          return 1
@@ -106,6 +115,8 @@ def main_command(version="latest",page="https://www.seafile.com/en/download/"):
    if version_int(current_version()) == version_int(version):
       print("%s(%s) is already installed" % (version,version_int(version)))
       return 1
+   if version in installed_versions():
+      return perform_upgrade_command(version)
    if install:
       print("Installing: %s" % version)
       return install_command(install)