git/t/t1509-root-worktree.sh
Nguyễn Thái Ngọc Duy 3719b2fe55 Add test for using Git at root of file system
This kind of test requires a throw-away root filesystem so that it can
play on. If you have such a system, go ahead, "chmod 777 /" and run
this test manually. Because this is a dangerous test, you are required
to set an env variable, and not to use root to run it.

Script prepare-root.sh may help you set up a chroot environment with
Git test suite inside. You will need Linux, static linked busybox,
rsync and root permission to use it.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-16 08:55:56 -08:00

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#!/bin/sh
test_description='Test Git when git repository is located at root
This test requires write access in root. Do not bother if you do not
have a throwaway chroot or VM.
Script t1509/prepare-chroot.sh may help you setup chroot, then you
can chroot in and execute this test from there.
'
. ./test-lib.sh
test_cmp_val() {
echo "$1" > expected
echo "$2" > result
test_cmp expected result
}
test_vars() {
test_expect_success "$1: gitdir" '
test_cmp_val "'"$2"'" "$(git rev-parse --git-dir)"
'
test_expect_success "$1: worktree" '
test_cmp_val "'"$3"'" "$(git rev-parse --show-toplevel)"
'
test_expect_success "$1: prefix" '
test_cmp_val "'"$4"'" "$(git rev-parse --show-prefix)"
'
}
test_foobar_root() {
test_expect_success 'add relative' '
test -z "$(cd / && git ls-files)" &&
git add foo/foome &&
git add foo/bar/barme &&
git add me &&
( cd / && git ls-files --stage ) > result &&
test_cmp /ls.expected result &&
rm "$(git rev-parse --git-dir)/index"
'
test_expect_success 'add absolute' '
test -z "$(cd / && git ls-files)" &&
git add /foo/foome &&
git add /foo/bar/barme &&
git add /me &&
( cd / && git ls-files --stage ) > result &&
test_cmp /ls.expected result &&
rm "$(git rev-parse --git-dir)/index"
'
}
test_foobar_foo() {
test_expect_success 'add relative' '
test -z "$(cd / && git ls-files)" &&
git add foome &&
git add bar/barme &&
git add ../me &&
( cd / && git ls-files --stage ) > result &&
test_cmp /ls.expected result &&
rm "$(git rev-parse --git-dir)/index"
'
test_expect_success 'add absolute' '
test -z "$(cd / && git ls-files)" &&
git add /foo/foome &&
git add /foo/bar/barme &&
git add /me &&
( cd / && git ls-files --stage ) > result &&
test_cmp /ls.expected result &&
rm "$(git rev-parse --git-dir)/index"
'
}
test_foobar_foobar() {
test_expect_success 'add relative' '
test -z "$(cd / && git ls-files)" &&
git add ../foome &&
git add barme &&
git add ../../me &&
( cd / && git ls-files --stage ) > result &&
test_cmp /ls.expected result &&
rm "$(git rev-parse --git-dir)/index"
'
test_expect_success 'add absolute' '
test -z "$(cd / && git ls-files)" &&
git add /foo/foome &&
git add /foo/bar/barme &&
git add /me &&
( cd / && git ls-files --stage ) > result &&
test_cmp /ls.expected result &&
rm "$(git rev-parse --git-dir)/index"
'
}
if ! test_have_prereq POSIXPERM || ! [ -w / ]; then
say "Dangerous test skipped. Read this test if you want to execute it"
test_done
fi
if [ "$IKNOWWHATIAMDOING" != "YES" ]; then
say "You must set env var IKNOWWHATIAMDOING=YES in order to run this test"
test_done
fi
if [ "$UID" = 0 ]; then
say "No you can't run this with root"
test_done
fi
ONE_SHA1=d00491fd7e5bb6fa28c517a0bb32b8b506539d4d
test_expect_success 'setup' '
rm -rf /foo
mkdir /foo &&
mkdir /foo/bar &&
echo 1 > /foo/foome &&
echo 1 > /foo/bar/barme &&
echo 1 > /me
'
say "GIT_DIR absolute, GIT_WORK_TREE set"
test_expect_success 'go to /' 'cd /'
cat >ls.expected <<EOF
100644 $ONE_SHA1 0 foo/bar/barme
100644 $ONE_SHA1 0 foo/foome
100644 $ONE_SHA1 0 me
EOF
export GIT_DIR="$TRASH_DIRECTORY/.git"
export GIT_WORK_TREE=/
test_vars 'abs gitdir, root' "$GIT_DIR" "/" ""
test_foobar_root
test_expect_success 'go to /foo' 'cd /foo'
test_vars 'abs gitdir, foo' "$GIT_DIR" "/" "foo/"
test_foobar_foo
test_expect_success 'go to /foo/bar' 'cd /foo/bar'
test_vars 'abs gitdir, foo/bar' "$GIT_DIR" "/" "foo/bar/"
test_foobar_foobar
say "GIT_DIR relative, GIT_WORK_TREE set"
test_expect_success 'go to /' 'cd /'
export GIT_DIR="$(echo $TRASH_DIRECTORY|sed 's,^/,,')/.git"
export GIT_WORK_TREE=/
test_vars 'rel gitdir, root' "$GIT_DIR" "/" ""
test_foobar_root
test_expect_success 'go to /foo' 'cd /foo'
export GIT_DIR="../$TRASH_DIRECTORY/.git"
export GIT_WORK_TREE=/
test_vars 'rel gitdir, foo' "$TRASH_DIRECTORY/.git" "/" "foo/"
test_foobar_foo
test_expect_success 'go to /foo/bar' 'cd /foo/bar'
export GIT_DIR="../../$TRASH_DIRECTORY/.git"
export GIT_WORK_TREE=/
test_vars 'rel gitdir, foo/bar' "$TRASH_DIRECTORY/.git" "/" "foo/bar/"
test_foobar_foobar
say "GIT_DIR relative, GIT_WORK_TREE relative"
test_expect_success 'go to /' 'cd /'
export GIT_DIR="$(echo $TRASH_DIRECTORY|sed 's,^/,,')/.git"
export GIT_WORK_TREE=.
test_vars 'rel gitdir, root' "$GIT_DIR" "/" ""
test_foobar_root
test_expect_success 'go to /' 'cd /foo'
export GIT_DIR="../$TRASH_DIRECTORY/.git"
export GIT_WORK_TREE=..
test_vars 'rel gitdir, foo' "$TRASH_DIRECTORY/.git" "/" "foo/"
test_foobar_foo
test_expect_success 'go to /foo/bar' 'cd /foo/bar'
export GIT_DIR="../../$TRASH_DIRECTORY/.git"
export GIT_WORK_TREE=../..
test_vars 'rel gitdir, foo/bar' "$TRASH_DIRECTORY/.git" "/" "foo/bar/"
test_foobar_foobar
say ".git at root"
unset GIT_DIR
unset GIT_WORK_TREE
test_expect_success 'go to /' 'cd /'
test_expect_success 'setup' '
rm -rf /.git
echo "Initialized empty Git repository in /.git/" > expected &&
git init > result &&
test_cmp expected result
'
test_vars 'auto gitdir, root' ".git" "/" ""
test_foobar_root
test_expect_success 'go to /foo' 'cd /foo'
test_vars 'auto gitdir, foo' "/.git" "/" "foo/"
test_foobar_foo
test_expect_success 'go to /foo/bar' 'cd /foo/bar'
test_vars 'auto gitdir, foo/bar' "/.git" "/" "foo/bar/"
test_foobar_foobar
test_expect_success 'cleanup' 'rm -rf /.git'
say "auto bare gitdir"
# DESTROYYYYY!!!!!
test_expect_success 'setup' '
rm -rf /refs /objects /info /hooks
rm /*
cd / &&
echo "Initialized empty Git repository in /" > expected &&
git init --bare > result &&
test_cmp expected result
'
test_vars 'auto gitdir, root' "." "" ""
test_expect_success 'go to /foo' 'cd /foo'
test_vars 'auto gitdir, root' "/" "" ""
test_done