1 files changed, 71 insertions, 0 deletions
diff --git a/build/moz.configure/node.configure b/build/moz.configure/node.configure
new file mode 100644
index 0000000000..ba2003d197
--- /dev/null
+++ b/build/moz.configure/node.configure
@@ -0,0 +1,71 @@
+# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+option("--disable-nodejs", help="Require Node.js to build")
+option(env="NODEJS", nargs=1, help="Path to nodejs")
+
+
+@depends("--enable-nodejs", "NODEJS", bootstrap_search_path("node"))
+@checking(
+    "for nodejs", callback=lambda x: "%s (%s)" % (x.path, x.str_version) if x else "no"
+)
+@imports(_from="mozbuild.nodeutil", _import="find_node_executable")
+@imports(_from="mozbuild.nodeutil", _import="NODE_MIN_VERSION")
+def nodejs(require, env_node, search_path):
+    # We don't use the dependency directly, but having it ensures the
+    # auto-upgrade code in bootstrap_search_path is triggered, while
+    # find_node_executable will use more or less the same search path.
+    # We do however need to use the variable for the configure lint
+    # not to fail.
+    search_path
+
+    node_exe = env_node[0] if env_node else None
+
+    nodejs, version = find_node_executable(node_exe)
+
+    MAYBE_FILE_A_BUG = """
+
+    Executing `mach bootstrap --no-system-changes` should
+    install a compatible version in ~/.mozbuild on most platforms.
+    If you believe this is a bug, <https://mzl.la/2vLbXAv> is a good way
+    to file.  More details: <https://bit.ly/2BbyD1E>
+    """
+
+    if not nodejs:
+        msg = (
+            "could not find Node.js executable later than %s; ensure "
+            "`node` or `nodejs` is in PATH or set NODEJS in environment "
+            "to point to an executable.%s" % (NODE_MIN_VERSION, MAYBE_FILE_A_BUG)
+        )
+
+        if require:
+            raise FatalCheckError(msg)
+        else:
+            log.warning(msg)
+            log.warning("(This will become an error in the near future.)")
+            return
+
+    if not version:
+        msg = "NODEJS must point to node %s or newer; found node location: %s. %s" % (
+            NODE_MIN_VERSION,
+            nodejs,
+            MAYBE_FILE_A_BUG,
+        )
+
+        if require:
+            raise FatalCheckError(msg)
+        else:
+            log.warning(msg)
+            return
+
+    return namespace(
+        path=nodejs,
+        version=version,
+        str_version=".".join(str(v) for v in version),
+    )
+
+
+set_config("NODEJS", depends_if(nodejs)(lambda p: p.path))