59 lines
1.6 KiB
Bash
59 lines
1.6 KiB
Bash
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#!/bin/sh
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die() {
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echo >&2 "$@"
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exit 1
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}
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xmkdir() {
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while [ -n "$1" ]; do
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[ -d "$1" ] || mkdir "$1" || die "Unable to mkdir $1"
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shift
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done
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}
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R="$1"
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[ "$(id -u)" -eq 0 ] && die "This script should not be run as root, what if it does rm -rf /?"
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[ -n "$R" ] || die "usage: prepare-chroot.sh <root>"
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[ -x git ] || die "This script needs to be executed at git source code's top directory"
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if [ -x /bin/busybox ]; then
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BB=/bin/busybox
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elif [ -x /usr/bin/busybox ]; then
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BB=/usr/bin/busybox
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else
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die "You need busybox"
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fi
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xmkdir "$R" "$R/bin" "$R/etc" "$R/lib" "$R/dev"
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touch "$R/dev/null"
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echo "root:x:0:0:root:/:/bin/sh" > "$R/etc/passwd"
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echo "$(id -nu):x:$(id -u):$(id -g)::$(pwd)/t:/bin/sh" >> "$R/etc/passwd"
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echo "root::0:root" > "$R/etc/group"
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echo "$(id -ng)::$(id -g):$(id -nu)" >> "$R/etc/group"
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[ -x "$R$BB" ] || cp $BB "$R/bin/busybox"
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for cmd in sh su ls expr tr basename rm mkdir mv id uname dirname cat true sed diff; do
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ln -f -s /bin/busybox "$R/bin/$cmd"
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done
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mkdir -p "$R$(pwd)"
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rsync --exclude-from t/t1509/excludes -Ha . "$R$(pwd)"
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# Fake perl to reduce dependency, t1509 does not use perl, but some
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# env might slip through, see test-lib.sh, unset.*PERL_PATH
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sed 's|^PERL_PATH=.*|PERL_PATH=/bin/true|' GIT-BUILD-OPTIONS > "$R$(pwd)/GIT-BUILD-OPTIONS"
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for cmd in git $BB;do
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ldd $cmd | grep '/' | sed 's,.*\s\(/[^ ]*\).*,\1,' | while read i; do
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mkdir -p "$R$(dirname $i)"
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cp "$i" "$R/$i"
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done
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done
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cat <<EOF
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All is set up in $R, execute t1509 with the following commands:
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sudo chroot $R /bin/su - $(id -nu)
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IKNOWWHATIAMDOING=YES ./t1509-root-worktree.sh -v -i
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When you are done, simply delete $R to clean up
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EOF
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