TJ-Bot/scripts/pre-commit at develop · Together-Java/TJ-Bot · GitHub

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#!/bin/sh

create_stash() {

# Stash unstaged changes, if any

previous_stash=$(git rev-parse -q --verify refs/stash)

git stash push -q

new_stash=$(git rev-parse -q --verify refs/stash)

}

pop_stash() {

# Restore unstaged changes, if any

if [ "$previous_stash" != "$new_stash" ]; then

git stash apply -q && git stash drop -q

}

echo "****Running pre-commit hooks****"

# We want to apply spotless on all staged files. Therefore, we have to first draft a

# WIP-commit for the staged changes and put the unstaged changes aside using stash

# (otherwise spotless would apply on them as well, see https://github.com/diffplug/spotless/issues/623).

# There are a few edge cases to handle here; for example if there are no unstaged changes, stash would not create a stash.

# Hence, the following pop of the stash must be guarded (see https://stackoverflow.com/a/20480591/2411243).

# Mini commit for staged changes, so that we can stash away unstaged in the next step (bypass hook with "no-verify" to avoid recursion)

git commit --no-verify --message "WIP"

commitExitCode=$?

if [ "$commitExitCode" -ne 0 ]; then

# Commit failed (for example if there is nothing staged), early-out

exit "$commitExitCode"

# Put unstaged away

create_stash

# Get back staged changes

git reset --soft HEAD^

# Apply spotless on the staged changes only (rest has been put away)

echo "**Applying spotless**"

./gradlew spotlessApply

spotlessExitCode=$?

if [ "$spotlessExitCode" -ne 0 ]; then

# Spotless failed, restore unstaged

pop_stash

exit "$spotlessExitCode"

echo "**Running Sonarlint checks**"

./gradlew sonarlintMain

sonarlintExitCode=$?

if [ "$sonarlintExitCode" -ne 0 ]; then

pop_stash

exit "$sonarlintMain"

# Spotless possibly found changes, apply them, excluding untracked files

git add -u

# Restore back the unstaged changes

pop_stash

echo "****Done pre-commit hooks****"

TJ-Bot/scripts/pre-commit at develop · Together-Java/TJ-Bot · GitHub

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