130 lines
3.2 KiB
Bash
Executable file
130 lines
3.2 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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# --library-path won't work if $base contains : or ;
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# Detect this problem, and work around it by using a temp directory.
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if echo "$base" | grep -q '[:;]'; then
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tbase=$(mktemp -d -p /tmp annexshimXXXXXXXXX 2>/dev/null || true)
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if [ -z "$tbase" ]; then
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tbase="/tmp/annexshim.$$"
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mkdir "$tbase"
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fi
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ln -s "$base" "$tbase/link"
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base="$tbase/link"
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cleanuptbase () {
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rm -rf "$tbase"
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}
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trap cleanuptbase EXIT
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fi
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# Install shim that's used to run git-annex-shell from ssh authorized_keys.
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# The assistant also does this when run, but the user may not be using the
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# assistant.
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if [ ! -e "$HOME/.ssh/git-annex-shell" ]; then
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mkdir "$HOME/.ssh" >/dev/null 2>&1 || true
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if [ -e "$HOME/.ssh" ]; then
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(
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echo "#!/bin/sh"
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echo "set -e"
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echo "if [ \"x\$SSH_ORIGINAL_COMMAND\" != \"x\" ]; then"
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echo "exec '$base/runshell' git-annex-shell -c \"\$SSH_ORIGINAL_COMMAND\""
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echo "else"
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echo "exec '$base/runshell' git-annex-shell -c \"\$@\""
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echo "fi"
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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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fi
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# And this shim is used by the webapp when adding a remote ssh server.
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if [ ! -e "$HOME/.ssh/git-annex-wrapper" ]; then
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mkdir "$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 '$base/runshell' \"\$@\""
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) > "$HOME/.ssh/git-annex-wrapper"
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chmod +x "$HOME/.ssh/git-annex-wrapper"
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fi
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# Put our binaries first, to avoid issues with out of date or incompatable
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# system binaries.
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ORIG_PATH="$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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# These env vars are used by the shim wrapper around each binary.
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for lib in $(cat "$base/libdirs"); do
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GIT_ANNEX_LD_LIBRARY_PATH="$base/$lib:$GIT_ANNEX_LD_LIBRARY_PATH"
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done
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export GIT_ANNEX_LD_LIBRARY_PATH
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GIT_ANNEX_DIR="$base"
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export GIT_ANNEX_DIR
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ORIG_GCONV_PATH="$GCONV_PATH"
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export ORIG_GCONV_PATH
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GCONV_PATH="$base/$(cat "$base/gconvdir")"
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export GCONV_PATH
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# workaround for https://ghc.haskell.org/trac/ghc/ticket/7695
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LOCPATH=/dev/null
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export LOCPATH
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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/git-core"
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export GIT_EXEC_PATH
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ORIG_GIT_TEMPLATE_DIR="$GIT_TEMPLATE_DIR"
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export ORIG_GIT_TEMPLATE_DIR
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GIT_TEMPLATE_DIR="$base/templates"
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export GIT_TEMPLATE_DIR
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ORIG_MANPATH="$MANPATH"
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export ORIG_MANPATH
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MANPATH="$base/usr/share/man:$MANPATH"
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export MANPATH
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# Indicate which variables were exported above and should be cleaned
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# when running non-bundled programs.
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GIT_ANNEX_STANDLONE_ENV="PATH GCONV_PATH GIT_EXEC_PATH GIT_TEMPLATE_DIR MANPATH"
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export GIT_ANNEX_STANDLONE_ENV
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if [ "$1" ]; then
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cmd="$1"
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shift 1
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if [ -z "$tbase" ]; then
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exec "$cmd" "$@"
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else
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# allow EXIT trap to cleanup
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"$cmd" "$@"
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fi
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else
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sh
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fi
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