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testenv: copy=: support copying directories too

In preparation for adding the inital testenv.cfgs for ggsn, allow
copying full directories with copy= too. This will make the ggsn
testenv.cfg files easier to maintain.

Change-Id: I8e680fbd93516030614c015d7c3b5bdb153ec487
---
M _testenv/README.md
M _testenv/testenv/testdir.py
2 files changed, 16 insertions(+), 7 deletions(-)

git pull ssh://gerrit.osmocom.org:29418/osmo-ttcn3-hacks refs/changes/62/38262/1

diff --git a/_testenv/README.md b/_testenv/README.md
index 09b12e8..7db3e24 100644
--- a/_testenv/README.md
+++ b/_testenv/README.md
@@ -65,8 +65,9 @@
 * `program=`: executable for starting a test component, may contain arguments.
   See below for `PATH` and `PWD`.
 
-* `copy=`: file(s) to copy from the testsuite directory to the test directory,
-  like `.cfg` and `.confmerge` files. Multiple values are separated by spaces.
+* `copy=`: optionally copy a space separated list of files or directories from
+  the testsuite directory to the test directory, like `.cfg` and `.confmerge`
+  files.
 
 * `make=`: osmo-dev make target for building from source, if running without
   `--binary-repo`. This is usually the name of the git repository, but could
diff --git a/_testenv/testenv/testdir.py b/_testenv/testenv/testdir.py
index 55f04d2..ee698fff 100644
--- a/_testenv/testenv/testdir.py
+++ b/_testenv/testenv/testdir.py
@@ -80,11 +80,19 @@
             testenv.cmd.run(["install", "-Dm644", path, path_dest])
 
         if "copy" in section_data:
-            for file in section_data["copy"].split(" "):
-                path = os.path.join(testsuite_dir, file)
-                path_dest = os.path.join(section_dir, file)
-                mode = 755 if os.access(path, os.X_OK) else 644
-                testenv.cmd.run(["install", f"-Dm{mode}", path, path_dest])
+            for copy_entry in section_data["copy"].split(" "):
+                path = os.path.join(testsuite_dir, copy_entry)
+                if os.path.isdir(path):
+                    pattern = os.path.join(path, "**")
+                    paths = glob.glob(pattern, recursive=True)
+                else:
+                    paths = [path]
+                for path in paths:
+                    if os.path.isdir(path):
+                        continue
+                    path_dest = os.path.join(section_dir, os.path.relpath(path, testsuite_dir))
+                    mode = 755 if os.access(path, os.X_OK) else 644
+                    testenv.cmd.run(["install", f"-Dm{mode}", path, path_dest])
 
         if "clean" in section_data:
             logging.info(f"Running {section} clean script (reason: prepare)")

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