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#!/bin/bash | |
# | |
# A script that identifies the root of the current rustc checkout. | |
# If the environment variable RUST_ROOT is not set, then it | |
# walks up from the current directory to find the right spot. | |
if [ -n "$RUST_ROOT" ]; then | |
echo "$RUST_ROOT" | |
exit 0 | |
fi | |
DIR="$PWD" | |
while [[ "$DIR" != "/" && "$DIR" != "$HOME" ]]; do | |
if [[ -r "$DIR/src/librustc" ]]; then | |
echo "$DIR" | |
exit 0 | |
fi | |
DIR=$(dirname "$DIR") | |
done | |
# Default to "rust-m" if we're not in a more specific Rust | |
# directory. This is where I keep my "plain vanilla" Rust build. | |
if [[ -r "$HOME/versioned/rust-m/src/librustc" ]]; then | |
echo "$HOME/versioned/rust-m/" | |
exit 0 | |
fi | |
echo "/no/rust/root/found" | |
exit 1 |
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#!/bin/bash | |
# | |
# A wrapper around `rustc` that will use the | |
# version of `rustc` appropriate to the current | |
# directory (if the current directory is a checkout | |
# of the rust repository), and otherwise fall back | |
# to `/usr/local/bin/rustc`. It will try to use the most | |
# advanced build it can find (i.e., stage2 in preference to | |
# stage1), or you can pass various arguments (e.g., `rustc --stage1`) | |
# to control what build it uses. You may also want | |
# `rustc --echo` (see what command it would run) or `rustc --gdb` | |
# (run rustc in gdb). | |
ARG= | |
if [ "$1" == "--stage0" ] | |
then | |
shift | |
ARG=stage0 | |
fi | |
if [ "$1" == "--stage1" ] | |
then | |
shift | |
ARG=stage1 | |
fi | |
if [ "$1" == "--stage2" ] | |
then | |
shift | |
ARG=stage2 | |
fi | |
if [ "$1" == "--echo" ] | |
then | |
shift | |
ECHO=1 | |
else | |
ECHO=0 | |
fi | |
if [ "$1" == "--gdb" ] | |
then | |
shift | |
GDB="gdb --args" | |
else | |
GDB="" | |
fi | |
if [ "$1" == "--lldb" ] | |
then | |
shift | |
GDB="lldb --" | |
else | |
GDB="" | |
fi | |
R="$($(dirname $0)/rustc-path $ARG)" | |
D="$(dirname "$R")" | |
if [ "$(uname)" == "Darwin" ] | |
then | |
VAR=DYLD_LIBRARY_PATH | |
else | |
VAR=LD_LIBRARY_PATH | |
fi | |
if [[ -x "$R" ]]; then | |
if (($ECHO)); then | |
echo $VAR="$D/../lib:$LD_LIBRARY_PATH" $GDB "$R" "$@" | |
else | |
env $VAR="$D/../lib:$LD_LIBRARY_PATH" $GDB "$R" "$@" | |
fi | |
exit $? | |
fi | |
echo > /dev/stderr "ERROR: Could not find an appropriate rustc to execute from dir $PWD!" | |
exit 1 |
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#!/bin/bash | |
# | |
# Script which finds an appropriate rustc to execute based on the current | |
# directory. We begin by walking up the set of directories until we find | |
# one that contains "src/comp/rustc.rc". | |
# Walk up directories looking for the main rust directory. Don't walk | |
# past the home directory of the current user, just seems unsanitary. | |
if [ -z "$1" ]; then | |
STAGES="stage2 stage1" | |
else | |
STAGES="$1" | |
fi | |
DIR=$(rust-root) | |
for stage in ${STAGES}; do | |
# Use glob to search through all architectures. | |
# But if some stage doesn't exist, then | |
# the glob will keep the "*" rather than return the | |
# empty set, so we have to check within the for loop | |
# too. | |
for rustc in "$DIR"/build/*/$stage/bin/rustc; do | |
if [[ -x "$rustc" ]]; then | |
echo "$rustc" | |
exit 0 | |
fi | |
done | |
done | |
# Fallback to /usr/local/bin/rustc, if any: | |
echo /usr/local/bin/rustc | |
exit 0 |
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