osmith has uploaded this change for review.

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testenv: pass targets to osmo-dev's gen_makefile

Pass the targets we are about to build to osmo-dev's gen_makefile
script. This has two advantages:

1) Check early if a target isn't known by the current osmo-dev version,
   displaying a useful error to the user instead of just failing during
   make later on:

     ERROR: filter_projects_deps_targets: can't find project osmo-new-project in projects_deps!

     [testenv] gen_makefile.py from osmo-dev failed!
     [testenv] Your osmo-dev.git clone might be outdated, try:
     [testenv] $ git -C /home/user/code/osmo-dev pull

2) Parsing the generated Makefile when running "make" after generating
   it doesn't cause a noticable delay anymore. On my machine (with many
   Osmocom git repos cloned in osmo-dev's src dir) it went from several
   seconds to instantly.

Depends: osmo-dev I89bb60e94dd03606dbba5a3609d5e1a95993af5b
Change-Id: Ib2d8802b305f145d27aab3c1cc3129709b93d93d
---
M _testenv/testenv.py
M _testenv/testenv/osmo_dev.py
2 files changed, 4 insertions(+), 12 deletions(-)

git pull ssh://gerrit.osmocom.org:29418/osmo-ttcn3-hacks refs/changes/42/40842/1

diff --git a/_testenv/testenv.py b/_testenv/testenv.py
index ebc625e..9e33e37 100755
--- a/_testenv/testenv.py
+++ b/_testenv/testenv.py
@@ -45,9 +45,6 @@
         testenv.podman.start()
         testenv.podman.check_titan_version()
 
-    if not testenv.args.binary_repo:
-        testenv.osmo_dev.init()
-
     testenv.testsuite.init()
     testenv.testsuite.build()
 
@@ -55,6 +52,7 @@
     if not testenv.args.binary_repo:
         for cfg_name, cfg in testenv.testenv_cfg.cfgs.items():
             testenv.testenv_cfg.set_current(cfg_name)
+            testenv.osmo_dev.init(cfg)
             testenv.osmo_dev.make(cfg)
 
     # Run the components + testsuite
diff --git a/_testenv/testenv/osmo_dev.py b/_testenv/testenv/osmo_dev.py
index 8f9667e..0b6bdf0 100644
--- a/_testenv/testenv/osmo_dev.py
+++ b/_testenv/testenv/osmo_dev.py
@@ -7,8 +7,6 @@
 import testenv
 import testenv.cmd
 
-init_done = False
-
 
 def get_osmo_dev_dir():
     # Users may have used osmo-dev to clone osmo-ttcn3-hacks:
@@ -66,12 +64,7 @@
     return ret
 
 
-def init():
-    global init_done
-
-    if init_done:
-        return
-
+def init(cfg):
     extra_opts = []
     if testenv.args.asan:
         extra_opts += ["sanitize.opts"]
@@ -91,6 +84,8 @@
         "--src-dir",
         testenv.src_dir,
         "--autoreconf-in-src-copy",
+        "--targets",
+        ",".join(get_targets(cfg)),
         "default.opts",
         "ccache.opts",
         "gtp_linux.opts",
@@ -111,7 +106,6 @@
         logging.critical("Your osmo-dev.git clone might be outdated, try:")
         logging.critical(f"$ git -C {shlex.quote(cwd)} pull")
         sys.exit(1)
-    init_done = True
 
 
 def make(cfg):

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