[meta-virtualization][PATCH 2/2] python3-docker-compose: import fastentrypoints

["Ming Liu" <liu.ming50@gmail.com>]

From: Ming Liu <liu.ming50@gmail.com>

The docker-compose project is using console_scripts which hence imports
pkg_resources which is very slow at starting time, see:
https://github.com/pypa/setuptools/issues/510

This could be workaround by importing fastentrypoints module.

Some tests:

Before the patch, on a colibri-imx8x machine:

$ time docker-compose
```

real	0m5.108s
user	0m4.761s
sys	0m0.272s
```

After the patch, on a colibri-imx8x machine:

$ time docker-compose
```

real	0m3.526s
user	0m3.249s
sys	0m0.235s
```

Have verified the patch with:
https://docs.docker.com/compose/gettingstarted

Signed-off-by: Ming Liu <liu.ming50@gmail.com>
---
 .../0001-setup.py-import-fastentrypoints.patch     | 28 ++++++++++++++++++++++
 .../python3-docker-compose_1.25.0.bb               |  6 ++++-
 2 files changed, 33 insertions(+), 1 deletion(-)
 create mode 100644 recipes-containers/docker-compose/files/0001-setup.py-import-fastentrypoints.patch

diff --git a/recipes-containers/docker-compose/files/0001-setup.py-import-fastentrypoints.patch b/recipes-containers/docker-compose/files/0001-setup.py-import-fastentrypoints.patch
new file mode 100644
index 0000000..df613e8
--- /dev/null
+++ b/recipes-containers/docker-compose/files/0001-setup.py-import-fastentrypoints.patch
@@ -0,0 +1,28 @@
+From f3a22f0f14a4b3313e6405dfb6c97df949493a34 Mon Sep 17 00:00:00 2001
+From: Ming Liu <liu.ming50@gmail.com>
+Date: Thu, 30 Jan 2020 17:22:19 +0100
+Subject: [PATCH] setup.py: import fastentrypoints
+
+Upstream-Status: Inappropriate [OE specific configuration]
+
+Signed-off-by: Ming Liu <liu.ming50@gmail.com>
+---
+ setup.py | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/setup.py b/setup.py
+index ad57969..3cccffc 100644
+--- a/setup.py
++++ b/setup.py
+@@ -12,7 +12,7 @@ import sys
+ import pkg_resources
+ from setuptools import find_packages
+ from setuptools import setup
+-
++import fastentrypoints
+ 
+ def read(*parts):
+     path = os.path.join(os.path.dirname(__file__), *parts)
+-- 
+2.7.4
+
diff --git a/recipes-containers/docker-compose/python3-docker-compose_1.25.0.bb b/recipes-containers/docker-compose/python3-docker-compose_1.25.0.bb
index 36e2417..ba35c49 100644
--- a/recipes-containers/docker-compose/python3-docker-compose_1.25.0.bb
+++ b/recipes-containers/docker-compose/python3-docker-compose_1.25.0.bb
@@ -8,7 +8,11 @@ inherit pypi setuptools3
 SRC_URI[md5sum] = "275b32cffdad6b9816dc8b4c7e55600a"
 SRC_URI[sha256sum] = "2c5fcbfd3ff445b6f3eebb549cb167ef1d8f70c5806aab8f309fc8fa74cd977e"
 
-SRC_URI += "file://0001-setup.py-remove-maximum-version-requirements.patch"
+SRC_URI += "file://0001-setup.py-remove-maximum-version-requirements.patch \
+            file://0001-setup.py-import-fastentrypoints.patch \
+           "
+
+DEPENDS += "${PYTHON_PN}-fastentrypoints-native"
 
 RDEPENDS_${PN} = "\
     ${PYTHON_PN}-cached-property \
-- 
2.7.4