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