9aa8061e83
This can happen when $PWD contains a symlink somewhere in the path. In that case, "cd ..; cat x" could mean something different from "cat ../x". Notably, this error occurs when running "./do test" if your build directory is through a symlink. For example, on freebsd your home directory is /home/$USER, but /home is a symlink to /usr/home, which triggers this problem. Not adding tests in this commit, because when I added some tests, I found even more symlink-related bugs, but those ones are much more unlikely to occur. The additional fixes+tests are in a later commit.
85 lines
1.8 KiB
Bash
Executable file
85 lines
1.8 KiB
Bash
Executable file
#!/bin/sh
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#
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# Bootstrap script, so we can build and test redo using (mostly) redo.
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# Before redo is available, we have to use minimal/do to build it. After
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# that, we switch to real redo.
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#
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# NOTE: Don't use this as a model for your own redo projects! It's friendly
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# to provide a 'do' script at the top of your project for people who haven't
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# installed redo, but that script is usually just a copy of minimal/do,
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# because your project probably doesn't have the same bootstrap problem that
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# redo itself does.
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#
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die() {
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echo "$0:" "$@" >&2
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exit 42
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}
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usage() {
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echo "Usage: $0 [redo-args...] <target>" >&2
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echo " where valid targets are: build all test install clean" >&2
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echo " and redo-args are optional args for redo, like -j10, -x" >&2
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exit 10
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}
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mydir=$(dirname "$0")
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cd "$(/bin/pwd)" && cd "$mydir" || die "can't find self in dir: $mydir"
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args=
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while [ "$1" != "${1#-}" ]; do
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args="$args $1"
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shift
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done
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if [ "$#" -gt 1 ]; then
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usage
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fi
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if [ -n "$args" -a "$#" -lt 1 ]; then
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usage
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fi
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if [ "$#" -lt 1 ]; then
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# if no extra args given, use a default target
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target=all
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else
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target=$1
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fi
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build() {
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./minimal/do -c bin/all || die "failed to compile redo."
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bin/redo bin/all || die "redo failed self test."
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}
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clean() {
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./minimal/do -c clean || die "failed to clean."
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rm -rf .redo .do_built .do_built.dir
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}
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case $target in
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build)
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build
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;;
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all|install)
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build && bin/redo $args "$target"
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;;
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test)
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# First test minimal/do
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build
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# Add ./redo to PATH so we launch with redo/sh as the shell
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PATH=$PWD/redo:$PATH minimal/do test || die "minimal/do test failed"
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clean
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build
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# Now switch to testing 'real' redo
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bin/redo $args test || die "redo test failed"
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;;
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clean)
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clean
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;;
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*)
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echo "$0: unknown target '$target'" >&2
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exit 11
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;;
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esac
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