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-rwxr-xr-xt/t1509-root-worktree.sh258
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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 -w /
+then
+ skip_all="Test requiring writable / skipped. Read this test if you want to run it"
+ test_done
+fi
+
+if test -e /refs || test -e /objects || test -e /info || test -e /hooks ||
+ test -e /.git || test -e /foo || test -e /me
+then
+ skip_all="Skip test that clobbers existing files in /"
+ test_done
+fi
+
+if [ "$IKNOWWHATIAMDOING" != "YES" ]; then
+ skip_all="You must set env var IKNOWWHATIAMDOING=YES in order to run this test"
+ test_done
+fi
+
+if ! test_have_prereq NOT_ROOT
+then
+ skip_all="No you can't run this as 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 $ONE_SHA1 0 me
+EOF
+
+GIT_DIR="$TRASH_DIRECTORY/.git" && export GIT_DIR
+GIT_WORK_TREE=/ && 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' "$GIT_DIR" "/" "foo/bar/"
+test_foobar_foobar
+
+say "GIT_DIR relative, GIT_WORK_TREE set"
+
+test_expect_success 'go to /' 'cd /'
+
+GIT_DIR="$(echo $TRASH_DIRECTORY|sed 's,^/,,')/.git" && export GIT_DIR
+GIT_WORK_TREE=/ && export GIT_WORK_TREE
+
+test_vars 'rel gitdir, root' "$GIT_DIR" "/" ""
+test_foobar_root
+
+test_expect_success 'go to /foo' 'cd /foo'
+
+GIT_DIR="../$TRASH_DIRECTORY/.git" && export GIT_DIR
+GIT_WORK_TREE=/ && export GIT_WORK_TREE
+
+test_vars 'rel gitdir, foo' "$TRASH_DIRECTORY/.git" "/" "foo/"
+test_foobar_foo
+
+test_expect_success 'go to /foo/bar' 'cd /foo/bar'
+
+GIT_DIR="../../$TRASH_DIRECTORY/.git" && export GIT_DIR
+GIT_WORK_TREE=/ && export GIT_WORK_TREE
+
+test_vars 'rel gitdir, foo/bar' "$TRASH_DIRECTORY/.git" "/" "foo/bar/"
+test_foobar_foobar
+
+say "GIT_DIR relative, GIT_WORK_TREE relative"
+
+test_expect_success 'go to /' 'cd /'
+
+GIT_DIR="$(echo $TRASH_DIRECTORY|sed 's,^/,,')/.git" && export GIT_DIR
+GIT_WORK_TREE=. && export GIT_WORK_TREE
+
+test_vars 'rel gitdir, root' "$GIT_DIR" "/" ""
+test_foobar_root
+
+test_expect_success 'go to /' 'cd /foo'
+
+GIT_DIR="../$TRASH_DIRECTORY/.git" && export GIT_DIR
+GIT_WORK_TREE=.. && export GIT_WORK_TREE
+
+test_vars 'rel gitdir, foo' "$TRASH_DIRECTORY/.git" "/" "foo/"
+test_foobar_foo
+
+test_expect_success 'go to /foo/bar' 'cd /foo/bar'
+
+GIT_DIR="../../$TRASH_DIRECTORY/.git" && export GIT_DIR
+GIT_WORK_TREE=../.. && export GIT_WORK_TREE
+
+test_vars 'rel gitdir, foo/bar' "$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 -f /expected /ls.expected /me /result &&
+ 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