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git-sync
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git-sync/test_e2e.sh

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#!/bin/bash
set -o errexit
set -o nounset
set -o pipefail
TESTCASE=""
function testcase() {
clean_root
echo -n "testcase $1: "
TESTCASE="$1"
}
function fail() {
echo "FAIL: " "$@"
sleep 3
remove_sync_container || true
exit 1
}
function pass() {
echo "PASS"
TESTCASE=""
git -C "$REPO" checkout -q master
}
function assert_link_exists() {
if ! [[ -e "$1" ]]; then
fail "$1 does not exist"
fi
if ! [[ -L "$1" ]]; then
fail "$1 is not a symlink"
fi
}
function assert_file_exists() {
if ! [[ -f "$1" ]]; then
fail "$1 does not exist"
fi
}
function assert_file_absent() {
if [[ -f "$1" ]]; then
fail "$1 exists"
fi
}
function assert_file_eq() {
if [[ $(cat "$1") == "$2" ]]; then
return
fi
fail "file $1 does not contain '$2': $(cat $1)"
}
function finish() {
if [ $? -ne 0 ]; then
echo "The directory $DIR was not removed as it contains"\
"log files useful for debugging"
remove_sync_container
fi
}
trap finish INT EXIT
# #####################
# main
# #####################
# Build it
make container REGISTRY=e2e VERSION=$(make -s version)
DIR=""
for i in $(seq 1 10); do
DIR="/tmp/git-sync-test.$RANDOM"
mkdir "$DIR" && break
done
if [[ -z "$DIR" ]]; then
echo "Failed to make a temp dir"
exit 1
fi
echo "test root is $DIR"
CONTAINER_NAME=git-sync-$RANDOM
function GIT_SYNC() {
#./bin/linux_amd64/git-sync "$@"
docker run \
--name $CONTAINER_NAME \
-i \
-u $(id -u):$(id -g) \
-v "$DIR":"$DIR" \
-v "$(pwd)/slow_git.sh":"/slow_git.sh" \
--rm \
e2e/git-sync:$(make -s version)__$(go env GOOS)_$(go env GOARCH) \
"$@"
}
function remove_sync_container() {
# Verify the container is running using 'docker top' before removing
docker top $CONTAINER_NAME >/dev/null 2>&1 && \
docker rm -f $CONTAINER_NAME >/dev/null 2>&1
}
SLOW_GIT=/slow_git.sh
REPO="$DIR/repo"
mkdir "$REPO"
ROOT="$DIR/root"
function clean_root() {
rm -rf "$ROOT"
mkdir "$ROOT"
}
# Init the temp repo.
TESTCASE=init
git -C "$REPO" init
touch "$REPO"/file
git -C "$REPO" add file
git -C "$REPO" commit -aqm "init file"
# Test HEAD one-time
testcase "head-once"
# First sync
echo "$TESTCASE" > "$REPO"/file
git -C "$REPO" commit -qam "$TESTCASE"
GIT_SYNC \
--logtostderr \
--v=5 \
--wait=0.1 \
--repo="$REPO" \
--branch=master \
--rev=HEAD \
--root="$ROOT" \
--dest="link" \
--one-time > "$DIR"/log."$TESTCASE" 2>&1
assert_link_exists "$ROOT"/link
assert_file_exists "$ROOT"/link/file
assert_file_eq "$ROOT"/link/file "$TESTCASE"
# Wrap up
pass
# Test default syncing
testcase "default-sync"
# First sync
echo "$TESTCASE 1" > "$REPO"/file
git -C "$REPO" commit -qam "$TESTCASE 1"
GIT_SYNC \
--logtostderr \
--v=5 \
--wait=0.1 \
--repo="$REPO" \
--root="$ROOT" \
--dest="link" > "$DIR"/log."$TESTCASE" 2>&1 &
sleep 3
assert_link_exists "$ROOT"/link
assert_file_exists "$ROOT"/link/file
assert_file_eq "$ROOT"/link/file "$TESTCASE 1"
# Move forward
echo "$TESTCASE 2" > "$REPO"/file
git -C "$REPO" commit -qam "$TESTCASE 2"
sleep 3
assert_link_exists "$ROOT"/link
assert_file_exists "$ROOT"/link/file
assert_file_eq "$ROOT"/link/file "$TESTCASE 2"
# Move backward
git -C "$REPO" reset -q --hard HEAD^
sleep 3
assert_link_exists "$ROOT"/link
assert_file_exists "$ROOT"/link/file
assert_file_eq "$ROOT"/link/file "$TESTCASE 1"
# Wrap up
remove_sync_container
wait
pass
# Test HEAD syncing
testcase "head-sync"
# First sync
echo "$TESTCASE 1" > "$REPO"/file
git -C "$REPO" commit -qam "$TESTCASE 1"
GIT_SYNC \
--logtostderr \
--v=5 \
--wait=0.1 \
--repo="$REPO" \
--branch=master \
--rev=HEAD \
--root="$ROOT" \
--dest="link" > "$DIR"/log."$TESTCASE" 2>&1 &
sleep 3
assert_link_exists "$ROOT"/link
assert_file_exists "$ROOT"/link/file
assert_file_eq "$ROOT"/link/file "$TESTCASE 1"
# Move HEAD forward
echo "$TESTCASE 2" > "$REPO"/file
git -C "$REPO" commit -qam "$TESTCASE 2"
sleep 3
assert_link_exists "$ROOT"/link
assert_file_exists "$ROOT"/link/file
assert_file_eq "$ROOT"/link/file "$TESTCASE 2"
# Move HEAD backward
git -C "$REPO" reset -q --hard HEAD^
sleep 3
assert_link_exists "$ROOT"/link
assert_file_exists "$ROOT"/link/file
assert_file_eq "$ROOT"/link/file "$TESTCASE 1"
# Wrap up
remove_sync_container
wait
pass
# Test branch syncing
testcase "branch-sync"
BRANCH="$TESTCASE"--BRANCH
# First sync
git -C "$REPO" checkout -q -b "$BRANCH"
echo "$TESTCASE 1" > "$REPO"/file
git -C "$REPO" commit -qam "$TESTCASE 1"
git -C "$REPO" checkout -q master
GIT_SYNC \
--logtostderr \
--v=5 \
--wait=0.1 \
--repo="$REPO" \
--branch="$BRANCH" \
--root="$ROOT" \
--dest="link" > "$DIR"/log."$TESTCASE" 2>&1 &
sleep 3
assert_link_exists "$ROOT"/link
assert_file_exists "$ROOT"/link/file
assert_file_eq "$ROOT"/link/file "$TESTCASE 1"
# Add to the branch.
git -C "$REPO" checkout -q "$BRANCH"
echo "$TESTCASE 2" > "$REPO"/file
git -C "$REPO" commit -qam "$TESTCASE 2"
git -C "$REPO" checkout -q master
sleep 3
assert_link_exists "$ROOT"/link
assert_file_exists "$ROOT"/link/file
assert_file_eq "$ROOT"/link/file "$TESTCASE 2"
# Move the branch backward
git -C "$REPO" checkout -q "$BRANCH"
git -C "$REPO" reset -q --hard HEAD^
git -C "$REPO" checkout -q master
sleep 3
assert_link_exists "$ROOT"/link
assert_file_exists "$ROOT"/link/file
assert_file_eq "$ROOT"/link/file "$TESTCASE 1"
# Wrap up
remove_sync_container
wait
pass
# Test tag syncing
testcase "tag-sync"
TAG="$TESTCASE"--TAG
# First sync
echo "$TESTCASE 1" > "$REPO"/file
git -C "$REPO" commit -qam "$TESTCASE 1"
git -C "$REPO" tag -f "$TAG" >/dev/null
GIT_SYNC \
--logtostderr \
--v=5 \
--wait=0.1 \
--repo="$REPO" \
--rev="$TAG" \
--root="$ROOT" \
--dest="link" > "$DIR"/log."$TESTCASE" 2>&1 &
sleep 3
assert_link_exists "$ROOT"/link
assert_file_exists "$ROOT"/link/file
assert_file_eq "$ROOT"/link/file "$TESTCASE 1"
# Add something and move the tag forward
echo "$TESTCASE 2" > "$REPO"/file
git -C "$REPO" commit -qam "$TESTCASE 2"
git -C "$REPO" tag -f "$TAG" >/dev/null
sleep 3
assert_link_exists "$ROOT"/link
assert_file_exists "$ROOT"/link/file
assert_file_eq "$ROOT"/link/file "$TESTCASE 2"
# Move the tag backward
git -C "$REPO" reset -q --hard HEAD^
git -C "$REPO" tag -f "$TAG" >/dev/null
sleep 3
assert_link_exists "$ROOT"/link
assert_file_exists "$ROOT"/link/file
assert_file_eq "$ROOT"/link/file "$TESTCASE 1"
# Add something after the tag
echo "$TESTCASE 3" > "$REPO"/file
git -C "$REPO" commit -qam "$TESTCASE 3"
sleep 3
assert_link_exists "$ROOT"/link
assert_file_exists "$ROOT"/link/file
assert_file_eq "$ROOT"/link/file "$TESTCASE 1"
# Wrap up
remove_sync_container
wait
pass
# Test tag syncing with annotated tags
testcase "tag-sync-annotated"
TAG="$TESTCASE"--TAG
# First sync
echo "$TESTCASE 1" > "$REPO"/file
git -C "$REPO" commit -qam "$TESTCASE 1"
git -C "$REPO" tag -af "$TAG" -m "$TESTCASE 1" >/dev/null
GIT_SYNC \
--logtostderr \
--v=5 \
--wait=0.1 \
--repo="$REPO" \
--rev="$TAG" \
--root="$ROOT" \
--dest="link" > "$DIR"/log."$TESTCASE" 2>&1 &
sleep 3
assert_link_exists "$ROOT"/link
assert_file_exists "$ROOT"/link/file
assert_file_eq "$ROOT"/link/file "$TESTCASE 1"
# Add something and move the tag forward
echo "$TESTCASE 2" > "$REPO"/file
git -C "$REPO" commit -qam "$TESTCASE 2"
git -C "$REPO" tag -af "$TAG" -m "$TESTCASE 2" >/dev/null
sleep 3
assert_link_exists "$ROOT"/link
assert_file_exists "$ROOT"/link/file
assert_file_eq "$ROOT"/link/file "$TESTCASE 2"
# Move the tag backward
git -C "$REPO" reset -q --hard HEAD^
git -C "$REPO" tag -af "$TAG" -m "$TESTCASE 3" >/dev/null
sleep 3
assert_link_exists "$ROOT"/link
assert_file_exists "$ROOT"/link/file
assert_file_eq "$ROOT"/link/file "$TESTCASE 1"
# Add something after the tag
echo "$TESTCASE 3" > "$REPO"/file
git -C "$REPO" commit -qam "$TESTCASE 3"
sleep 3
assert_link_exists "$ROOT"/link
assert_file_exists "$ROOT"/link/file
assert_file_eq "$ROOT"/link/file "$TESTCASE 1"
# Wrap up
remove_sync_container
wait
pass
# Test cross-branch tag syncing
testcase "cross-branch-tag-sync"
BRANCH="$TESTCASE"--BRANCH
TAG="$TESTCASE"--TAG
# First sync
git -C "$REPO" checkout -q -b "$BRANCH"
echo "$TESTCASE 1" > "$REPO"/file
git -C "$REPO" commit -qam "$TESTCASE 1"
git -C "$REPO" tag -af "$TAG" -m "$TESTCASE 1" >/dev/null
git -C "$REPO" checkout -q master
GIT_SYNC \
--logtostderr \
--v=5 \
--wait=0.1 \
--repo="$REPO" \
--rev="$TAG" \
--root="$ROOT" \
--dest="link" > "$DIR"/log."$TESTCASE" 2>&1 &
sleep 3
assert_link_exists "$ROOT"/link
assert_file_exists "$ROOT"/link/file
assert_file_eq "$ROOT"/link/file "$TESTCASE 1"
# Move the tag forward
git -C "$REPO" checkout -q "$BRANCH"
echo "$TESTCASE 2" > "$REPO"/file
git -C "$REPO" commit -qam "$TESTCASE 2"
git -C "$REPO" tag -af "$TAG" -m "$TESTCASE 1" >/dev/null
git -C "$REPO" checkout -q master
sleep 3
assert_link_exists "$ROOT"/link
assert_file_exists "$ROOT"/link/file
assert_file_eq "$ROOT"/link/file "$TESTCASE 2"
# Move the tag backward
git -C "$REPO" checkout -q "$BRANCH"
git -C "$REPO" reset -q --hard HEAD^
git -C "$REPO" tag -af "$TAG" -m "$TESTCASE 1" >/dev/null
git -C "$REPO" checkout -q master
sleep 3
assert_link_exists "$ROOT"/link
assert_file_exists "$ROOT"/link/file
assert_file_eq "$ROOT"/link/file "$TESTCASE 1"
# Add something after the tag
git -C "$REPO" checkout -q "$BRANCH"
echo "$TESTCASE 3" > "$REPO"/file
git -C "$REPO" commit -qam "$TESTCASE 3"
git -C "$REPO" checkout -q master
sleep 3
assert_link_exists "$ROOT"/link
assert_file_exists "$ROOT"/link/file
assert_file_eq "$ROOT"/link/file "$TESTCASE 1"
# Move the tag forward again
git -C "$REPO" checkout -q "$BRANCH"
git -C "$REPO" tag -af "$TAG" -m "$TESTCASE 3" >/dev/null
git -C "$REPO" checkout -q master
sleep 3
assert_link_exists "$ROOT"/link
assert_file_exists "$ROOT"/link/file
assert_file_eq "$ROOT"/link/file "$TESTCASE 3"
# Wrap up
remove_sync_container
wait
pass
# Test rev syncing
testcase "rev-sync"
# First sync
echo "$TESTCASE 1" > "$REPO"/file
git -C "$REPO" commit -qam "$TESTCASE 1"
REV=$(git -C "$REPO" rev-list -n1 HEAD)
GIT_SYNC \
--logtostderr \
--v=5 \
--wait=0.1 \
--repo="$REPO" \
--rev="$REV" \
--root="$ROOT" \
--dest="link" > "$DIR"/log."$TESTCASE" 2>&1 &
sleep 3
assert_link_exists "$ROOT"/link
assert_file_exists "$ROOT"/link/file
assert_file_eq "$ROOT"/link/file "$TESTCASE 1"
# Commit something new
echo "$TESTCASE 2" > "$REPO"/file
git -C "$REPO" commit -qam "$TESTCASE 2"
sleep 3
assert_link_exists "$ROOT"/link
assert_file_exists "$ROOT"/link/file
assert_file_eq "$ROOT"/link/file "$TESTCASE 1"
# Revert the last change
git -C "$REPO" reset -q --hard HEAD^
sleep 3
assert_link_exists "$ROOT"/link
assert_file_exists "$ROOT"/link/file
assert_file_eq "$ROOT"/link/file "$TESTCASE 1"
# Wrap up
remove_sync_container
wait
pass
# Test rev-sync one-time
testcase "rev-once"
# First sync
echo "$TESTCASE" > "$REPO"/file
git -C "$REPO" commit -qam "$TESTCASE"
REV=$(git -C "$REPO" rev-list -n1 HEAD)
GIT_SYNC \
--logtostderr \
--v=5 \
--wait=0.1 \
--repo="$REPO" \
--rev="$REV" \
--root="$ROOT" \
--dest="link" \
--one-time > "$DIR"/log."$TESTCASE" 2>&1
sleep 3
assert_link_exists "$ROOT"/link
assert_file_exists "$ROOT"/link/file
assert_file_eq "$ROOT"/link/file "$TESTCASE"
# Wrap up
pass
# Test syncing after a crash
testcase "crash-cleanup-retry"
# First sync
echo "$TESTCASE 1" > "$REPO"/file
git -C "$REPO" commit -qam "$TESTCASE 1"
GIT_SYNC \
--logtostderr \
--v=5 \
--one-time \
--repo="$REPO" \
--root="$ROOT" \
--dest="link" > "$DIR"/log."$TESTCASE" 2>&1 &
sleep 3
assert_link_exists "$ROOT"/link
assert_file_exists "$ROOT"/link/file
assert_file_eq "$ROOT"/link/file "$TESTCASE 1"
# Corrupt it
rm -f "$ROOT"/link
# Try again
GIT_SYNC \
--logtostderr \
--v=5 \
--one-time \
--repo="$REPO" \
--root="$ROOT" \
--dest="link" > "$DIR"/log."$TESTCASE" 2>&1 &
sleep 3
assert_link_exists "$ROOT"/link
assert_file_exists "$ROOT"/link/file
assert_file_eq "$ROOT"/link/file "$TESTCASE 1"
# Wrap up
pass
# Test sync loop timeout
testcase "sync-loop-timeout"
# First sync
echo "$TESTCASE 1" > "$REPO"/file
git -C "$REPO" commit -qam "$TESTCASE 1"
GIT_SYNC \
--git=$SLOW_GIT \
--timeout=1 \
--logtostderr \
--v=5 \
--one-time \
--repo="$REPO" \
--root="$ROOT" \
--dest="link" > "$DIR"/log."$TESTCASE" 2>&1 &
sleep 3
# check for failure
assert_file_absent "$ROOT"/link/file
# run with slow_git but without timing out
GIT_SYNC \
--git=$SLOW_GIT \
--timeout=16 \
--logtostderr \
--v=5 \
--wait=0.1 \
--repo="$REPO" \
--root="$ROOT" \
--dest="link" > "$DIR"/log."$TESTCASE" 2>&1 &
sleep 10
assert_link_exists "$ROOT"/link
assert_file_exists "$ROOT"/link/file
assert_file_eq "$ROOT"/link/file "$TESTCASE 1"
# Move forward
echo "$TESTCASE 2" > "$REPO"/file
git -C "$REPO" commit -qam "$TESTCASE 2"
sleep 10
assert_link_exists "$ROOT"/link
assert_file_exists "$ROOT"/link/file
assert_file_eq "$ROOT"/link/file "$TESTCASE 2"
# Wrap up
pass
echo "cleaning up $DIR"
rm -rf "$DIR"
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