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#!/bin/sh
# Runs a shell command (or interactive shell) using the binaries and
# libraries bundled with this app.
set -e
base="$(dirname $0)"
if [ ! -d "$base" ]; then
echo "** cannot find base directory (I seem to be $0)" >&2
exit 1
fi
if [ ! -e "$base/bin/git-annex" ]; then
echo "** base directory $base does not contain bin/git-annex" >&2
exit 1
fi
if [ ! -e "$base/bin/git" ]; then
echo "** base directory $base does not contain bin/git" >&2
exit 1
fi
# Get absolute path to base, to avoid breakage when things change directories.
orig="$(pwd)"
cd "$base"
base="$(pwd)"
cd "$orig"
# Install shim that's used to run git-annex-shell from ssh authorized_keys.
# The assistant also does this when run, but the user may not be using the
# assistant.
if [ ! -e "$HOME/.ssh/git-annex-shell" ]; then
mkdir "$HOME/.ssh" >/dev/null 2>&1 || true
(
echo "#!/bin/sh"
echo "set -e"
echo "exec $base/runshell git-annex-shell -c \"\$SSH_ORIGINAL_COMMAND\""
) > "$HOME/.ssh/git-annex-shell"
chmod +x "$HOME/.ssh/git-annex-shell"
fi
# Put our binaries first, to avoid issues with out of date or incompatable
# system binaries.
PATH=$base/bin:$PATH
export PATH
# This makes the linker first look in the library directories bundled
# in this app. Only if it fails to find a library there will a system
# library be used.
#
# This seems to work better than DYLD_LIBRARY_PATH, which can force
# the wrong version of a library to be used, if the app bundles two
# different versions of a single library. And it seems to work better
# than DYLD_FALLBACK_LIBRARY_PATH, which fails to override old system
# versions of libraries when a program in the app needs a newer version.
DYLD_ROOT_PATH=$base
export DYLD_ROOT_PATH
GIT_EXEC_PATH=$base/git-core
export GIT_EXEC_PATH
if [ "$1" ]; then
cmd="$1"
shift 1
exec "$cmd" "$@"
else
$SHELL
fi
|
