Include a file to indicate package manager

Soon we will have RPMs for yo. In that case, the automatic update check
should not happen, and "yo version" should direct users to their package
manager for updates. Rather than trying to detect at runtime how Yo got
installed, let's just include a small file that indicates the package
manager. The packaging script can overwrite the file with the correct
information, and yo can detect this and efficiently update its behavior.

Signed-off-by: Stephen Brennan <stephen.s.brennan@oracle.com>

Author: brenns10

setup.py

@@ -88,6 +88,7 @@
             "data/yo-tasks/*",
             "data/sample.yo.ini",
             "data/yo_tasklib.sh",
+            "data/pkgman",
         ],
     },
 )

yo/api.py

@@ -62,6 +62,7 @@
 from yo.util import latest_yo_version
 from yo.util import natural_sort
 from yo.util import one
+from yo.util import PKGMAN
 from yo.util import standardize_name
 from yo.util import YoConfig
 from yo.util import YoExc
@@ -1276,6 +1277,9 @@ def maybe_check_for_updates(self) -> t.Iterator[None]:
         check and notify users to update, but do so without making any command
         run longer than it would have.
         """
+        if PKGMAN != "pip":
+            yield
+            return
         # Only check every N hours
         since_last_check = now() - self.last_checked_for_update
         hours = since_last_check.total_seconds() / 3600

yo/data/pkgman

@@ -0,0 +1 @@
+pip

yo/main.py

@@ -125,6 +125,7 @@
 from yo.util import hasherr
 from yo.util import latest_yo_version
 from yo.util import natural_sort
+from yo.util import PKGMAN
 from yo.util import shlex_join
 from yo.util import standardize_name
 from yo.util import strftime
@@ -145,7 +146,6 @@
 DOCUMENTATION_URL = "https://oracle.github.io/yo/"
 INITIAL_CONFIG_LINK = REPOSITORY_URL
 
-
 COMMAND_GROUP_ORDER = [
     "Basic Commands",
     "Instance Management",
@@ -2652,17 +2652,21 @@ def run(self) -> None:
         print(f"Development & issues: {REPOSITORY_URL}")
         print()
 
-        latest_ver = latest_yo_version()
-        if not latest_ver:
-            print("Error loading the latest version!")
-            return
-        elif latest_ver == ver:
-            print("You are up-to-date!")
-            return
-        print("Latest version: {}.{}.{}".format(*latest_ver))
-        print("To update:")
-        print(f"  {yo.util.UPGRADE_COMMAND}")
-        print("Then verify by re-running yo version")
+        if PKGMAN == "pip":
+            latest_ver = latest_yo_version()
+            if not latest_ver:
+                print("Error loading the latest version!")
+                return
+            elif latest_ver == ver:
+                print("You are up-to-date!")
+                return
+            print("Latest version: {}.{}.{}".format(*latest_ver))
+            print("To update:")
+            print(f"  {yo.util.UPGRADE_COMMAND}")
+            print("Then verify by re-running yo version")
+        else:
+            print(f"Yo's installation is managed by {PKGMAN}")
+            print("Please use that to find & install updates.")
 
 
 class VolumeListCmd(YoCmd):

yo/util.py

@@ -46,6 +46,13 @@
 
 T = t.TypeVar("T")
 
+_PKGMAN_FILE = os.path.join(
+    os.path.abspath(os.path.dirname(__file__)), "data/pkgman"
+)
+PKGMAN = (
+    open(_PKGMAN_FILE).read().strip() if os.path.exists(_PKGMAN_FILE) else "pip"
+)
+
 
 class YoExc(Exception):
     pass