Add pre-commit git hooks and script to install it

[#151613835](https://www.pivotaltracker.com/story/show/151613835)
cloudfoundry · Oct 12, 2017 · 2d38d17 · 2d38d17
1 parent ef38555
commit 2d38d17
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diff --git a/git-hooks/pre-commit b/git-hooks/pre-commit
@@ -0,0 +1,11 @@
+#!/bin/bash
+modified_packages=$(./scripts/sync-package-specs)
+
+if [ -n "$modified_packages" ]; then
+  echo $'\e[31mthe following package specs are not staged:\e[0m'
+  echo
+  echo "$modified_packages"
+  exit 1
+fi
+
+
diff --git a/scripts/install-git-hooks b/scripts/install-git-hooks
@@ -0,0 +1,18 @@
+#!/bin/bash
+
+RELEASE=$(cd $(dirname $0)/.. && pwd)
+PRE_COMMIT=${RELEASE}/.git/hooks/pre-commit
+
+
+if [ ! -f ${PRE_COMMIT} ]; then
+  echo "#!/bin/bash" > ${PRE_COMMIT}
+  chmod +x ${PRE_COMMIT}
+fi
+
+if grep -q 'git-hooks/pre-commit' ${PRE_COMMIT}; then
+  echo "pre-commit already installed."
+else
+  echo >> ${PRE_COMMIT}
+  echo './git-hooks/pre-commit' >> ${PRE_COMMIT}
+  echo "pre-commit installed."
+fi