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Adds pre-commit hook, hook config script, and a README

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The pre-commit hook will automatically gofmt code in place, warning you
about any changes. It will also fail to commit if either golint or go
vet fails.
This commit is contained in:
Brian Bland 2014-12-15 15:45:02 -08:00
parent a35273a0db
commit 1a6893dbb6
3 changed files with 53 additions and 0 deletions
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6
project/hooks/README.md Normal file
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Git Hooks
=========
To enforce valid and properly-formatted code, there is CI in place which runs `gofmt`, `golint`, and `go vet` against code in the repository.
As an aid to prevent committing invalid code in the first place, a git pre-commit hook has been added to the repository, found in [pre-commit](./pre-commit). As it is impossible to automatically add linked hooks to a git repository, this hook should be linked into your `.git/hooks/pre-commit`, which can be done by running the `configure-hooks.sh` script in this directory. This script is the preferred method of configuring hooks, as it will be updated as more are added.

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project/hooks/configure-hooks.sh Executable file
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#!/bin/sh
cd $(dirname $0)
REPO_ROOT=$(git rev-parse --show-toplevel)
RESOLVE_REPO_ROOT_STATUS=$?
if [ "$RESOLVE_REPO_ROOT_STATUS" -ne "0" ]; then
echo -e "Unable to resolve repository root. Error:\n$REPO_ROOT" > /dev/stderr
exit $RESOLVE_REPO_ROOT_STATUS
fi
set -e
set -x
# Just in case the directory doesn't exist
mkdir -p $REPO_ROOT/.git/hooks
ln -f -s $(pwd)/pre-commit $REPO_ROOT/.git/hooks/pre-commit

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project/hooks/pre-commit Executable file
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#!/bin/sh
REPO_ROOT=$(git rev-parse --show-toplevel)
RESOLVE_REPO_ROOT_STATUS=$?
if [ "$RESOLVE_REPO_ROOT_STATUS" -ne "0" ]; then
printf "Unable to resolve repository root. Error:\n%s\n" "$RESOLVE_REPO_ROOT_STATUS" > /dev/stderr
exit $RESOLVE_REPO_ROOT_STATUS
fi
cd $REPO_ROOT
GOFMT_ERRORS=$(gofmt -s -l . 2>&1)
if [ -n "$GOFMT_ERRORS" ]; then
printf 'gofmt failed for the following files:\n%s\n\nPlease run "gofmt -s -l ." in the root of your repository before committing\n' "$GOFMT_ERRORS" > /dev/stderr
exit 1
fi
GOLINT_ERRORS=$(golint ./... 2>&1)
if [ -n "$GOLINT_ERRORS" ]; then
printf "golint failed with the following errors:\n%s\n" "$GOLINT_ERRORS" > /dev/stderr
exit 1
fi
GOVET_ERRORS=$(go vet ./... 2>&1)
GOVET_STATUS=$?
if [ "$GOVET_STATUS" -ne "0" ]; then
printf "govet failed with the following errors:\n%s\n" "$GOVET_ERRORS" > /dev/stderr
exit $GOVET_STATUS
fi