From 37a58be51a9f82543c622cf59827211f336d0ea1 Mon Sep 17 00:00:00 2001
From: Lance Edgar <lance@edbob.org>
Date: Wed, 6 Nov 2019 18:30:21 -0600
Subject: [PATCH] Backport some logic for installing node.js

---
 rattail_fabric/nodejs.py | 59 ++++++++++++++++++++++++++++++++++++++++
 rattail_fabric/util.py   | 38 ++++++++++++++++++++++++++
 2 files changed, 97 insertions(+)
 create mode 100644 rattail_fabric/nodejs.py
 create mode 100644 rattail_fabric/util.py

diff --git a/rattail_fabric/nodejs.py b/rattail_fabric/nodejs.py
new file mode 100644
index 0000000..f930b0e
--- /dev/null
+++ b/rattail_fabric/nodejs.py
@@ -0,0 +1,59 @@
+# -*- coding: utf-8; -*-
+################################################################################
+#
+#  Rattail -- Retail Software Framework
+#  Copyright © 2010-2019 Lance Edgar
+#
+#  This file is part of Rattail.
+#
+#  Rattail is free software: you can redistribute it and/or modify it under the
+#  terms of the GNU General Public License as published by the Free Software
+#  Foundation, either version 3 of the License, or (at your option) any later
+#  version.
+#
+#  Rattail is distributed in the hope that it will be useful, but WITHOUT ANY
+#  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+#  FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+#  details.
+#
+#  You should have received a copy of the GNU General Public License along with
+#  Rattail.  If not, see <http://www.gnu.org/licenses/>.
+#
+################################################################################
+"""
+Fabric library for Node.js
+"""
+
+import os
+
+from fabric.api import sudo, run
+from fabric.contrib.files import append, exists
+
+from rattail_fabric.util import get_home_path
+
+
+def install(user=None):
+    """
+    Install nvm and node.js for given user, or else "connection" user.
+    """
+    home = get_home_path(user)
+    nvm = os.path.join(home, '.nvm')
+
+    if not exists(nvm):
+        cmd = "bash -c 'curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.33.5/install.sh | bash'"
+        if user:
+            sudo(cmd, user=user)
+        else:
+            run(cmd)
+
+    profile = os.path.join(home, '.profile')
+    kwargs = {'use_sudo': bool(user)}
+    append(profile, 'export NVM_DIR="{}"'.format(nvm), **kwargs)
+    append(profile, '[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"', **kwargs)
+    append(profile, '[ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion"', **kwargs)
+
+    cmd = "bash -l -c 'nvm install node'"
+    if user:
+        sudo(cmd, user=user)
+    else:
+        run(cmd)
diff --git a/rattail_fabric/util.py b/rattail_fabric/util.py
new file mode 100644
index 0000000..28331a6
--- /dev/null
+++ b/rattail_fabric/util.py
@@ -0,0 +1,38 @@
+# -*- coding: utf-8; -*-
+################################################################################
+#
+#  Rattail -- Retail Software Framework
+#  Copyright © 2010-2019 Lance Edgar
+#
+#  This file is part of Rattail.
+#
+#  Rattail is free software: you can redistribute it and/or modify it under the
+#  terms of the GNU General Public License as published by the Free Software
+#  Foundation, either version 3 of the License, or (at your option) any later
+#  version.
+#
+#  Rattail is distributed in the hope that it will be useful, but WITHOUT ANY
+#  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+#  FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+#  details.
+#
+#  You should have received a copy of the GNU General Public License along with
+#  Rattail.  If not, see <http://www.gnu.org/licenses/>.
+#
+################################################################################
+"""
+Misc. Utilities
+"""
+
+from fabric.api import env, run
+
+
+def get_home_path(user=None):
+    """
+    Retrieve the path to the home folder for the given user, or else the
+    "connection" user.
+    """
+    user = user or env.user
+    home = run('getent passwd {} | cut -d: -f6'.format(user)).stdout.strip()
+    home = home.rstrip('/')
+    return home