From f22ae56477c466d42307839b78c785b0fe109dcf Mon Sep 17 00:00:00 2001
From: Florian Schmaus <flow@gentoo.org>
Date: Sat, 21 Sep 2024 14:04:07 +0200
Subject: [PATCH] Drop _emerge/getloadavg.py

Portage's custom getloadavg.py wrapper was added with
8607a39dc9d9 ("If necessary, use /proc/loadavg to emulate
os.getloadavg()."). All platforms we care about provide
os.getloadavg() now, so this can be dropped.

Zac did a nice analysis of the historical background in

https://github.com/gentoo/portage/pull/1383#issuecomment-2375471855

to summarize: python on uclibc did not had os.getloadavg() in the
past, but uclibc (and uclibc-ng) where retired in gentoo [1].

1: https://www.gentoo.org/support/news-items/2021-08-18-uclibc-ng-retirement.html
Signed-off-by: Florian Schmaus <flow@gentoo.org>
---
 lib/_emerge/JobStatusDisplay.py |  5 ++---
 lib/_emerge/PollScheduler.py    |  5 ++---
 lib/_emerge/Scheduler.py        |  4 ++--
 lib/_emerge/getloadavg.py       | 29 -----------------------------
 lib/_emerge/meson.build         |  1 -
 5 files changed, 6 insertions(+), 38 deletions(-)
 delete mode 100644 lib/_emerge/getloadavg.py

diff --git a/lib/_emerge/JobStatusDisplay.py b/lib/_emerge/JobStatusDisplay.py
index b98d4a8327..585712f512 100644
--- a/lib/_emerge/JobStatusDisplay.py
+++ b/lib/_emerge/JobStatusDisplay.py
@@ -4,6 +4,7 @@
 import io
 import sys
 import time
+import os
 
 import portage
 import portage.util.formatter as formatter
@@ -12,8 +13,6 @@
 from portage import _unicode_encode
 from portage.output import xtermTitle
 
-from _emerge.getloadavg import getloadavg
-
 
 class JobStatusDisplay:
     # Used as maximum display width and default fallback value.
@@ -192,7 +191,7 @@ def _property_change(self, name, old_value, new_value):
 
     def _load_avg_str(self):
         try:
-            avg = getloadavg()
+            avg = os.getloadavg()
         except OSError:
             return "unknown"
 
diff --git a/lib/_emerge/PollScheduler.py b/lib/_emerge/PollScheduler.py
index fdf88dd04d..4e0d803845 100644
--- a/lib/_emerge/PollScheduler.py
+++ b/lib/_emerge/PollScheduler.py
@@ -2,13 +2,12 @@
 # Distributed under the terms of the GNU General Public License v2
 
 import threading
+import os
 
 from portage.util.futures import asyncio
 from portage.util._async.SchedulerInterface import SchedulerInterface
 from portage.util._eventloop.global_event_loop import global_event_loop
 
-from _emerge.getloadavg import getloadavg
-
 
 class PollScheduler:
     # max time between loadavg checks (seconds)
@@ -182,7 +181,7 @@ def _can_add_job(self):
             and self._running_job_count() >= 1
         ):
             try:
-                avg1, avg5, avg15 = getloadavg()
+                avg1, avg5, avg15 = os.getloadavg()
             except OSError:
                 return False
 
diff --git a/lib/_emerge/Scheduler.py b/lib/_emerge/Scheduler.py
index 7d9023b0b9..b967f58dd0 100644
--- a/lib/_emerge/Scheduler.py
+++ b/lib/_emerge/Scheduler.py
@@ -12,6 +12,7 @@
 import warnings
 import weakref
 import zlib
+import os
 
 import portage
 from portage import os
@@ -50,7 +51,6 @@
 from _emerge.EbuildPhase import EbuildPhase
 from _emerge.emergelog import emergelog
 from _emerge.FakeVartree import FakeVartree
-from _emerge.getloadavg import getloadavg
 from _emerge._find_deep_system_runtime_deps import _find_deep_system_runtime_deps
 from _emerge._flush_elog_mod_echo import _flush_elog_mod_echo
 from _emerge.JobStatusDisplay import JobStatusDisplay
@@ -1962,7 +1962,7 @@ def _job_delay(self):
                 self._sigcont_time = None
 
             try:
-                avg1, avg5, avg15 = getloadavg()
+                avg1, avg5, avg15 = os.getloadavg()
             except OSError:
                 return False
 
diff --git a/lib/_emerge/getloadavg.py b/lib/_emerge/getloadavg.py
deleted file mode 100644
index f36d57e0e7..0000000000
--- a/lib/_emerge/getloadavg.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# Copyright 1999-2013 Gentoo Foundation
-# Distributed under the terms of the GNU General Public License v2
-
-from portage import os
-
-getloadavg = getattr(os, "getloadavg", None)
-if getloadavg is None:
-
-    def getloadavg():
-        """
-        Uses /proc/loadavg to emulate os.getloadavg().
-        Raises OSError if the load average was unobtainable.
-        """
-        try:
-            with open("/proc/loadavg") as f:
-                loadavg_str = f.readline()
-        except OSError:
-            # getloadavg() is only supposed to raise OSError, so convert
-            raise OSError("unknown")
-        loadavg_split = loadavg_str.split()
-        if len(loadavg_split) < 3:
-            raise OSError("unknown")
-        loadavg_floats = []
-        for i in range(3):
-            try:
-                loadavg_floats.append(float(loadavg_split[i]))
-            except ValueError:
-                raise OSError("unknown")
-        return tuple(loadavg_floats)
diff --git a/lib/_emerge/meson.build b/lib/_emerge/meson.build
index fd463e5c27..01fc1c50b4 100644
--- a/lib/_emerge/meson.build
+++ b/lib/_emerge/meson.build
@@ -81,7 +81,6 @@ py.install_sources(
         'create_world_atom.py',
         'depgraph.py',
         'emergelog.py',
-        'getloadavg.py',
         'help.py',
         'is_valid_package_atom.py',
         'main.py',