From 6754c28ca85e676c918251aff1687528b280b264 Mon Sep 17 00:00:00 2001
From: Christian Decker <decker.christian@gmail.com>
Date: Sat, 25 Jan 2020 16:30:23 +0100
Subject: [PATCH] travis: Added coverage for plugins and coveralls integration

---
 .gitignore          |  1 +
 .travis.yml         |  2 ++
 .travis/bin/python3 |  3 +++
 .travis/build.sh    | 14 +++++++++++++-
 4 files changed, 19 insertions(+), 1 deletion(-)
 create mode 100755 .travis/bin/python3

diff --git a/.gitignore b/.gitignore
index bee8a64..d8a1bb0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 __pycache__
+.coverage
diff --git a/.travis.yml b/.travis.yml
index ac45dec..e3faa43 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -24,3 +24,5 @@ before_install:
 script:
   .travis/build.sh
 
+after_success:
+  - coveralls
diff --git a/.travis/bin/python3 b/.travis/bin/python3
new file mode 100755
index 0000000..3b3757c
--- /dev/null
+++ b/.travis/bin/python3
@@ -0,0 +1,3 @@
+#!/bin/bash
+export COVERAGE_FILE=/tmp/.coverage
+coverage run --omit='/home/travis/.local/,*/.direnv/*' --parallel-mode "$@"
diff --git a/.travis/build.sh b/.travis/build.sh
index 50a546b..4690720 100755
--- a/.travis/build.sh
+++ b/.travis/build.sh
@@ -26,7 +26,9 @@ pip3 install --user --quiet \
      mako==1.0.14 \
      psycopg2-binary==2.8.3 \
      pytest-timeout==1.3.3 \
-     pytest-xdist==1.30.0
+     pytest-xdist==1.30.0 \
+     coverage \
+     coveralls
 
 # Install the pyln-client and testing library matching c-lightning `master`
 
@@ -49,4 +51,14 @@ fi
 # Collect libraries that the plugins need and install them
 find . -name requirements.txt -exec pip3 install --user -r {} \;
 
+# Enable coverage reporting from inside the plugin. This is done by adding a
+# wrapper called python3 that internally just calls `coverage run` and stores
+# the coverage output in `/tmp/.coverage.*` from where we can pick the details
+# up again.
+PATH="$(pwd)/.travis/bin:$PATH"
+export PATH
+
 pytest -vvv --timeout=550 --timeout_method=thread -p no:logging -n 10
+
+# Now collect the results in a single file so coveralls finds them
+coverage combine /tmp/.coverage.*