SERVER-51054 construct multiversion download URLs manually for 4.7

1 files changed, 34 insertions, 2 deletions

diff --git a/buildscripts/setup_multiversion_mongodb.py b/buildscripts/setup_multiversion_mongodb.py
index bad860184bd..e933b24fe7b 100755
--- a/buildscripts/setup_multiversion_mongodb.py
+++ b/buildscripts/setup_multiversion_mongodb.py
@@ -230,8 +230,40 @@ class MultiVersionDownloader(object):  # pylint: disable=too-many-instance-attri
                         continue
                     urls.append((ver, generic_url))
             if not urls:
-                raise Exception(
-                    "No fall-back generic link available or version {}.".format(version))
+                if version != "4.7":
+                    raise Exception(
+                        "No fall-back generic link available or version {}.".format(version))
+
+                print("manually constructing URL for 4.7 releases;"
+                      "please note that only the latest release is available")
+
+                url_template = "https://downloads.mongodb.com/{bucket}/mongodb-{os_family}-{arch}-enterprise-{platform}-4.7.tgz"
+
+                if self.platform == "windows":
+                    os_family = self.platform
+                    bucket = self.platform
+                elif self.platform == "osx":
+                    os_family = "macos"
+                    bucket = self.platform
+                else:
+                    os_family = "linux"
+                    bucket = "linux"
+
+                if self.platform == "osx" or self.platform == "windows":
+                    # macOS and Windows URLs don't have the platform portion.
+                    platform = ""
+                elif self.platform == "amazon":
+                    # The community version and the enterprise version have different platform names.
+                    platform = "amzn64"
+                else:
+                    platform = self.platform
+
+                url = url_template.format(bucket=bucket, os_family=os_family,
+                                          arch=self.architecture, platform=platform)
+
+                # URLs with missing sections lead to double dashes.
+                url = url.replace("--", "-")
+                urls.append(("4.7", url))
             else:
                 print("Falling back to generic architecture.")