[PATCH v2] Add a new variable:'BB_FETCH_ENV' to export Fetcher env

["Mingrui Ren" <jiladahe1997@gmail.com>]

From 59ed46416217e0c0b44203bc58e472e4068dba83 Mon Sep 17 00:00:00 2001
From: Mingrui Ren <jiladahe1997@gmail.com>
Date: Mon, 19 Jul 2021 23:02:19 +0800
Subject: [PATCH v2] Add a new variable:'BB_FETCH_ENV' to export Fetcher env

The environment variables used by Fetcher are hard-coded, and are obtained
from HOST env instead of bitbake datastore
This patch add a new variable 'BB_FETCH_ENV',and modify the default
BB_ENV_EXTRAWHITE_OE for backwards compatibility, trying to fix the
problems above.

Signed-off-by: Mingrui Ren <jiladahe1997@gmail.com>
---
changes in v2:
     a.changes the variable name from 'FETCH_ENV_WHITELIST' to 'BB_FETCH_ENV'.
     b.add 'BB_FETCH_ENV' in local.conf, rather than export it in host 
       enviroment.
     c.modify existing BB_ENV_EXTRAWHITE_OE for backwards compatibility.

 bitbake/lib/bb/fetch2/__init__.py | 19 ++-----------------
 meta-poky/conf/local.conf.sample  | 11 +++++++++++
 scripts/oe-buildenv-internal      |  3 ++-
 3 files changed, 15 insertions(+), 18 deletions(-)

diff --git a/bitbake/lib/bb/fetch2/__init__.py b/bitbake/lib/bb/fetch2/__init__.py
index c8e91262a9..3e779fa78d 100644
--- a/bitbake/lib/bb/fetch2/__init__.py
+++ b/bitbake/lib/bb/fetch2/__init__.py
@@ -820,21 +820,7 @@ def runfetchcmd(cmd, d, quiet=False, cleanup=None, log=None, workdir=None):
     # rather than host provided
     # Also include some other variables.
     # FIXME: Should really include all export varaiables?
-    exportvars = ['HOME', 'PATH',
-                  'HTTP_PROXY', 'http_proxy',
-                  'HTTPS_PROXY', 'https_proxy',
-                  'FTP_PROXY', 'ftp_proxy',
-                  'FTPS_PROXY', 'ftps_proxy',
-                  'NO_PROXY', 'no_proxy',
-                  'ALL_PROXY', 'all_proxy',
-                  'GIT_PROXY_COMMAND',
-                  'GIT_SSH',
-                  'GIT_SSL_CAINFO',
-                  'GIT_SMART_HTTP',
-                  'SSH_AUTH_SOCK', 'SSH_AGENT_PID',
-                  'SOCKS5_USER', 'SOCKS5_PASSWD',
-                  'DBUS_SESSION_BUS_ADDRESS',
-                  'P4CONFIG']
+    exportvars = (d.getVar("BB_FETCH_ENV") or "").split()
 
     if not cleanup:
         cleanup = []
@@ -850,9 +836,8 @@ def runfetchcmd(cmd, d, quiet=False, cleanup=None, log=None, workdir=None):
         d.setVar("PV", "fetcheravoidrecurse")
         d.setVar("PR", "fetcheravoidrecurse")
 
-    origenv = d.getVar("BB_ORIGENV", False)
     for var in exportvars:
-        val = d.getVar(var) or (origenv and origenv.getVar(var))
+        val = d.getVar(var)
         if val:
             cmd = 'export ' + var + '=\"%s\"; %s' % (val, cmd)
 
diff --git a/meta-poky/conf/local.conf.sample b/meta-poky/conf/local.conf.sample
index fb14379d28..b01a04a1a6 100644
--- a/meta-poky/conf/local.conf.sample
+++ b/meta-poky/conf/local.conf.sample
@@ -272,3 +272,14 @@ PACKAGECONFIG_append_pn-qemu-system-native = " sdl"
 # track the version of this file when it was generated. This can safely be ignored if
 # this doesn't mean anything to you.
 CONF_VERSION = "1"
+
+# Bitbake Fetcher Environment Variables
+#
+# Specific which environment variables in bitbake datastore used by fetcher when
+# executing fetch task.
+# NOTE: You may need to modify BB_ENV_EXTRAWHITE, in order to add environment
+# variable into bitbake datastore first.
+BB_FETCH_ENV ?= "HOME PATH HTTP_PROXY http_proxy HTTPS_PROXY https_proxy \
+FTP_PROXY ftp_proxy FTPS_PROXY ftps_proxy NO_PROXY no_proxy ALL_PROXY all_proxy \
+GIT_PROXY_COMMAND GIT_SSH GIT_SSL_CAINFO GIT_SMART_HTTP SSH_AUTH_SOCK SSH_AGENT_PID \
+SOCKS5_USER SOCKS5_PASSWD DBUS_SESSION_BUS_ADDRESS P4CONFIG"
\ No newline at end of file
diff --git a/scripts/oe-buildenv-internal b/scripts/oe-buildenv-internal
index e0d920f2fc..7abb4af593 100755
--- a/scripts/oe-buildenv-internal
+++ b/scripts/oe-buildenv-internal
@@ -111,7 +111,8 @@ HTTPS_PROXY https_proxy FTP_PROXY ftp_proxy FTPS_PROXY ftps_proxy ALL_PROXY \
 all_proxy NO_PROXY no_proxy SSH_AGENT_PID SSH_AUTH_SOCK BB_SRCREV_POLICY \
 SDKMACHINE BB_NUMBER_THREADS BB_NO_NETWORK PARALLEL_MAKE GIT_PROXY_COMMAND \
 SOCKS5_PASSWD SOCKS5_USER SCREENDIR STAMPS_DIR BBPATH_EXTRA BB_SETSCENE_ENFORCE \
-BB_LOGCONFIG"
+BB_LOGCONFIG HOME PATH GIT_SSH GIT_SSL_CAINFO GIT_SMART_HTTP DBUS_SESSION_BUS_ADDRESS \
+P4CONFIG"
 
 BB_ENV_EXTRAWHITE="$(echo $BB_ENV_EXTRAWHITE $BB_ENV_EXTRAWHITE_OE | tr ' ' '\n' | LC_ALL=C sort --unique | tr '\n' ' ')"
 
-- 
2.20.1