Add validation that the version has been increased compared to master

.github/pull_request_template.md

@@ -12,3 +12,4 @@ Please briefly explain the goal of the changes/this PR.
 - [ ] I have added tests for 100% coverage
 - [ ] I have written Numpy-style docstrings for every method and class.
 - [ ] I have communicated the downstream consequences of the PR to others.
+- [ ] I have bumped the version in setup.py

.travis.yml

@@ -12,6 +12,7 @@ script:
 - flake8 src
 - cd docs; make html; cd ..;
 - touch ./docs/_build/html/.nojekyll
+- ./scripts/validate-version-bump.sh
 deploy:
   - provider: pages
     skip_cleanup: true

scripts/validate-version-bump.sh

@@ -0,0 +1,59 @@
+#!/bin/bash
+
+set -eux
+
+extract_version() {
+  sed -En "s/.*version='([0-9]+\.[0-9]+\.[0-9]+).*/\1/p" <<< "$@"
+}
+
+extract_major() {
+  sed -En "s/([0-9]+).*/\1/p" <<< "$1"
+}
+
+extract_minor() {
+  sed -En "s/.*\.([0-9]+)\..*/\1/p" <<< "$1"
+}
+
+extract_patch() {
+  sed -En "s/.*([0-9])/\1/p" <<< "$1"
+}
+
+trap "$(set +eux)" EXIT
+
+CURRENT="$(extract_version $(cat setup.py))"
+MASTER="$(extract_version $(git show master:setup.py))"
+
+CURRENT_MAJOR="$(extract_major ${CURRENT})"
+CURRENT_MINOR="$(extract_minor ${CURRENT})"
+CURRENT_PATCH="$(extract_patch ${CURRENT})"
+
+MASTER_MAJOR="$(extract_major ${MASTER})"
+MASTER_MINOR="$(extract_minor ${MASTER})"
+MASTER_PATCH="$(extract_patch ${MASTER})"
+
+if [ "${CURRENT_MAJOR}" -gt "${MASTER_MAJOR}" ]; then
+  echo "major version bump"
+  exit 0
+elif [ "${CURRENT_MAJOR}" -lt "${MASTER_MAJOR}" ]; then
+  echo "error - major version decreased!"
+  exit 1
+else
+  if [ "${CURRENT_MINOR}" -gt "${MASTER_MINOR}" ]; then
+    echo "minor version bump"
+    exit 0
+  elif [ "${CURRENT_MINOR}" -lt "${MASTER_MINOR}" ]; then
+    echo "error - minor version decreased!"
+    exit 2
+  else
+    if [ "${CURRENT_PATCH}" -gt "${MASTER_PATCH}" ]; then
+      echo "patch version bump"
+      exit 0
+    elif [ "${CURRENT_PATCH}" -lt "${MASTER_PATCH}" ]; then
+      echo "error - patch version decreased!"
+      exit 3
+    else
+      echo "error - version unchanged!"
+      exit 4
+    fi
+  fi
+fi

setup.py

@@ -57,7 +57,7 @@ def run(self):
 
 
 setup(name='citrine',
-      version='0.9.1',
+      version='0.10.0',
       url='http://github.com/CitrineInformatics/citrine-python',
       description='Python library for the Citrine Platform',
       author='Andrew Millspaugh',