| 1 | #!/bin/sh |
| 2 | |
| 3 | die() { |
| 4 | echo >&2 "$@" |
| 5 | exit 1 |
| 6 | } |
| 7 | |
| 8 | xmkdir() { |
| 9 | while [ -n "$1" ]; do |
| 10 | [ -d "$1" ] || mkdir "$1" || die "Unable to mkdir $1" |
| 11 | shift |
| 12 | done |
| 13 | } |
| 14 | |
| 15 | R="$1" |
| 16 | |
| 17 | [ "$(id -u)" -eq 0 ] && die "This script should not be run as root, what if it does rm -rf /?" |
| 18 | [ -n "$R" ] || die "usage: prepare-chroot.sh <root>" |
| 19 | [ -x git ] || die "This script needs to be executed at git source code's top directory" |
| 20 | if [ -x /bin/busybox ]; then |
| 21 | BB=/bin/busybox |
| 22 | elif [ -x /usr/bin/busybox ]; then |
| 23 | BB=/usr/bin/busybox |
| 24 | else |
| 25 | die "You need busybox" |
| 26 | fi |
| 27 | |
| 28 | xmkdir "$R" "$R/bin" "$R/etc" "$R/lib" "$R/dev" |
| 29 | touch "$R/dev/null" |
| 30 | echo "root:x:0:0:root:/:/bin/sh" > "$R/etc/passwd" |
| 31 | echo "$(id -nu):x:$(id -u):$(id -g)::$(pwd)/t:/bin/sh" >> "$R/etc/passwd" |
| 32 | echo "root::0:root" > "$R/etc/group" |
| 33 | echo "$(id -ng)::$(id -g):$(id -nu)" >> "$R/etc/group" |
| 34 | |
| 35 | [ -x "$R$BB" ] || cp $BB "$R/bin/busybox" |
| 36 | for cmd in sh su ls expr tr basename rm mkdir mv id uname dirname cat true sed diff; do |
| 37 | ln -f -s /bin/busybox "$R/bin/$cmd" |
| 38 | done |
| 39 | |
| 40 | mkdir -p "$R$(pwd)" |
| 41 | rsync --exclude-from t/t1509/excludes -Ha . "$R$(pwd)" |
| 42 | # Fake perl to reduce dependency, t1509 does not use perl, but some |
| 43 | # env might slip through, see test-lib.sh, unset.*PERL_PATH |
| 44 | sed 's|^PERL_PATH=.*|PERL_PATH=/bin/true|' GIT-BUILD-OPTIONS > "$R$(pwd)/GIT-BUILD-OPTIONS" |
| 45 | for cmd in git $BB;do |
| 46 | ldd $cmd | sed -n '/\//s,.*\s\(/[^ ]*\).*,\1,p' | while read i; do |
| 47 | mkdir -p "$R$(dirname $i)" |
| 48 | cp "$i" "$R/$i" |
| 49 | done |
| 50 | done |
| 51 | cat <<EOF |
| 52 | All is set up in $R, execute t1509 with the following commands: |
| 53 | |
| 54 | sudo chroot $R /bin/su - $(id -nu) |
| 55 | IKNOWWHATIAMDOING=YES ./t1509-root-worktree.sh -v -i |
| 56 | |
| 57 | When you are done, simply delete $R to clean up |
| 58 | EOF |