From d814052aac7a19841bc1cdf29b15af88240c2a9f Mon Sep 17 00:00:00 2001
From: Jan Lindemann <jan@janware.com>
Date: Thu, 19 Feb 2026 08:14:34 +0100
Subject: [PATCH] jw.pkg.cmds.projects.CmdBuild: --source-profile ->
 --env-reinit

Replace --source-profile by --env-reinit and --env-keep to allow more
fine-grained control over environment manipulation.

Signed-off-by: Jan Lindemann <jan@janware.com>
---
 src/python/jw/pkg/cmds/projects/CmdBuild.py | 19 +++++++++++++++----
 1 file changed, 15 insertions(+), 4 deletions(-)

diff --git a/src/python/jw/pkg/cmds/projects/CmdBuild.py b/src/python/jw/pkg/cmds/projects/CmdBuild.py
index 048b4655..7f0f0514 100644
--- a/src/python/jw/pkg/cmds/projects/CmdBuild.py
+++ b/src/python/jw/pkg/cmds/projects/CmdBuild.py
@@ -24,8 +24,10 @@ class CmdBuild(Cmd): # export
             default=False, help='Don\'t build anything, just print the build order.')
         parser.add_argument('-I', '--ignore-deps', action='store_true',
             default=False, help='Don\'t build dependencies, i.e. build only modules specified on the command line')
-        parser.add_argument('--source-profile', choices=['no', 'add', 'replace'],
-            default='no', help='Source /etc/profile before each build step')
+        parser.add_argument('--env-reinit', action='store_true',
+            default=False, help='Source /etc/profile before each build step. Discard environment unless --env-keep is specified')
+        parser.add_argument('--env-keep', default='none', help='Comma seperated list of environment variables to keep, '
+                            + '"all" or "none", only meaningful if --env-reinit is specified')
         parser.add_argument('target', default='all', help='Build target')
         parser.add_argument('modules', nargs='+', default='', help='Modules to be built')
 
@@ -100,8 +102,17 @@ class CmdBuild(Cmd): # export
             title = '---- [%d/%d]: Running "%s" in %s -' % (cur_project, num_projects, ' '.join(make_cmd), wd)
 
             env = None
-            if args.source_profile != 'no':
-                env = await get_profile_env(add=True if args.source_profile == 'add' else False)
+            if args.env_reinit:
+                keep: bool|list[str] = False
+                if args.env_keep is not None:
+                    match args.env_keep:
+                        case 'all':
+                            keep=True
+                        case 'none':
+                            keep=False
+                        case _:
+                            keep = args.env_keep.split(',')
+                env = await get_profile_env(keep=keep)
 
             try:
                 stdout, stderr = await run_cmd(