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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 "$orig"
# Put our binaries first, to avoid issues with out of date or incompatable
# system binaries.
PATH=$base/bin:$PATH
export PATH
# Using DYLD_FALLBACK_LIBRARY_PATH rather than DYLD_LIBRARY_PATH, so as
# not to force binaries to link against possibly the wrong versions of
# libraries found in the path. With DYLD_FALLBACK_LIBRARY_PATH, the
# system's versions of libraries will be used when possible, and otherwise
# it will fall back to using the libraries bundled with this app.
for lib in "$(cat $base/libdirs)"; do
DYLD_FALLBACK_LIBRARY_PATH="$base/$lib:$DYLD_FALLBACK_LIBRARY_PATH"
done
export DYLD_FALLBACK_LIBRARY_PATH
GIT_EXEC_PATH=$base/git-core
export GIT_EXEC_PATH
if [ "$1" ]; then
cmd="$1"
shift 1
"$cmd" "$@"
else
$SHELL
fi
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