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#!/system/bin/sh
# This is runs a shell in an environment configured for git-annex.
# Nearly the only command that can be used in here is busybox!
# lib.start.so will run us in the root of our app directory
base=$(./busybox pwd)
cmd=$base/busybox
set -e
prep () {
# Cannot rely on Android providing a sane HOME
HOME="/sdcard/git-annex.home"
export HOME
}
buildtree () {
$cmd echo "Installation starting to $base"
$cmd cat "lib/lib.version.so"
if $cmd test -e "$base/bin"; then
$cmd mv "$base/bin" "$base/bin.old"
fi
$cmd mkdir -p "$base/bin"
for prog in busybox git-annex git-shell git-upload-pack git gpg rsync ssh ssh-keygen; do
$cmd echo "installing $prog"
if $cmd test -e "$base/bin/$prog"; then
$cmd rm -f "$base/bin/$prog"
fi
$cmd ln -s "$base/lib/lib.$prog.so" "$base/bin/$prog"
done
$cmd --install $base/bin
$cmd rm -rf "$base/bin.old"
$cmd tar zxf $base/lib/lib.git.tar.gz.so
for prog in git git-shell git-upload-pack; do
for link in $($cmd cat "$base/links/$prog"); do
$cmd echo "linking $link to $prog"
if $cmd test -e "$base/$link"; then
$cmd rm -f "$base/$link"
fi
$cmd ln -s "$base/bin/$prog" "$base/$link"
done
$cmd rm -f "$base/links/$prog"
done
$cmd mkdir -p "$base/templates"
$cmd mkdir -p "$base/tmp"
$cmd echo "#!/system/bin/sh" > "$base/runshell"
$cmd echo "exec $base/lib/lib.start.so" >> "$base/runshell"
$cmd chmod 755 runshell
$cmd cat "$base/lib/lib.version.so" > "$base/installed-version"
$cmd echo "Installation complete"
}
install () {
if ! $cmd mkdir -p "$HOME"; then
$cmd echo "mkdir of $HOME failed!"
fi
if $cmd test ! -e "$base/bin/git-annex"; then
if ! buildtree > $HOME/git-annex-install.log 2>&1; then
$cmd echo "Installation failed! Please report a bug and attach $HOME/git-annex-install.log"
$cmd sh
fi
elif $cmd test ! -e "$base/installed-version" || ! $cmd cmp "$base/installed-version" "$base/lib/lib.version.so" >/dev/null; then
if ! buildtree > $HOME/git-annex-install.log 2>&1; then
$cmd echo "Upgrade failed! Please report a bug and attach $HOME/git-annex-install.log"
fi
fi
}
run () {
PATH="$base/bin:$PATH"
export PATH
ORIG_GIT_EXEC_PATH="$GIT_EXEC_PATH"
export ORIG_GIT_EXEC_PATH
GIT_EXEC_PATH=$base/libexec/git-core
export GIT_EXEC_PATH
ORIG_GIT_TEMPLATE_DIR="$GIT_TEMPLATE_DIR"
export ORIG_GIT_TEMPLATE_DIR
GIT_TEMPLATE_DIR="$base/templates"
export GIT_TEMPLATE_DIR
# Indicate which variables were exported above.
GIT_ANNEX_STANDLONE_ENV="GIT_EXEC_PATH GIT_TEMPLATE_DIR"
export GIT_ANNEX_STANDLONE_ENV
# This is a temporary directory on a non-crippled filesystem.
# Needs to be as short a path as possible, for ssh sockets.
GIT_ANNEX_TMP_DIR=$base/tmp
export GIT_ANNEX_TMP_DIR
# /tmp probably doesn't exist, so also use it as TMPDIR
TMPDIR=$GIT_ANNEX_TMP_DIR
export TMPDIR
if $cmd test ! -e "$HOME/.gitconfig"; then
git config --global user.email "git-annex@android"
git config --global user.name "android"
fi
if $cmd test "$1"; then
cmd="$1"
shift 1
exec "$cmd" "$@"
else
# As good a start point as any.
cd "$HOME"
/system/bin/sh
fi
}
if $cmd test -n "$MKFIFO"; then
# because java is insane
$cmd mkfifo "$MKFIFO"
else
if ! prep; then
$cmd echo "prep failed. Please report a bug."
read line
fi
if ! install; then
$cmd echo "install failed. Please report a bug."
read line
fi
run
fi
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