cf72c31617
bash error handling and reporting is atrocious. Without -e it will just ignore errors. With -e it will stop on errors, but not report where the error happened (apart from exiting itself with an error code). Improve that with the `trap ERR` command. Note that this won't be invoked on intentional error exit with `exit 1`. We apply this on every bash script that contains -e or that it appears trivial to set it in. Non-trivial scripts without -e are left unmodified, since they might intentionally invoke failing scripts. Closes scylladb/scylladb#22747
103 lines
2.9 KiB
Bash
Executable File
103 lines
2.9 KiB
Bash
Executable File
#!/bin/bash
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#
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# Copyright (C) 2022-present ScyllaDB
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#
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#
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# SPDX-License-Identifier: LicenseRef-ScyllaDB-Source-Available-1.0
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#
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set -e
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trap 'echo "error $? in $0 line $LINENO"' ERR
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if [ -z "$BASH_VERSION" ]; then
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echo "Unsupported shell, please run this script on bash."
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exit 1
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fi
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print_usage() {
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cat <<EOF
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Usage: install.sh [options]
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Options:
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--root /path/to/root alternative install root (default /)
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--prefix /prefix directory prefix (default /usr)
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--nonroot install Scylla without required root privilege
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--help this helpful message
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EOF
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exit 1
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}
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# Some words about pathnames in this script.
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#
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# A pathname has three components: "$root/$prefix/$rest".
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#
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# $root is used to point at the entire installed hierarchy, so you can perform
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# an install to a temporary directory without modifying your system, with the intent
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# that the files are copied later to the real /. So, if "$root"="/tmp/xyz", you'd get
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# a standard hierarchy under /tmp/xyz: /tmp/xyz/etc, /tmp/xyz/var, and
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# /tmp/xyz/opt/scylladb/bin/scylla. This is used by rpmbuild --root to create a filesystem
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# image to package.
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#
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# When this script creates a file, it must use "$root" to refer to the file. When this
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# script inserts a file name into a file, it must not use "$root", because in the installed
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# system "$root" is stripped out. Example:
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#
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# echo "This file's name is /a/b/c. > "$root/a/b/c"
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#
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# The second component is "$prefix". It is used by non-root install to place files into
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# a directory of the user's choice (typically somewhere under their home directory). In theory
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# all files should be always under "$prefix", but in practice /etc files are not under "$prefix"
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# for standard installs (we use /etc not /usr/etc) and are under "$prefix" for non-root installs.
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# Another exception is files that go under /opt/scylladb in a standard install go under "$prefix"
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# for a non-root install.
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#
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# The last component is the rest of the file name, which doesn't matter for this script and
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# isn't changed by it.
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root=/
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nonroot=false
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while [ $# -gt 0 ]; do
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case "$1" in
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"--root")
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root="$(realpath "$2")"
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shift 2
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;;
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"--prefix")
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prefix="$2"
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shift 2
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;;
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"--nonroot")
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nonroot=true
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shift 1
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;;
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"--help")
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shift 1
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print_usage
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;;
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*)
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print_usage
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;;
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esac
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done
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# change directory to the package's root directory
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cd "$(dirname "$0")"
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if [ -z "$prefix" ]; then
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if $nonroot; then
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prefix=~/scylladb
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else
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prefix=/opt/scylladb
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fi
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fi
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rprefix=$(realpath -m "$root/$prefix")
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install -d -m755 "$rprefix"/libexec/.debug
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cp -r ./libexec/.debug/* "$rprefix"/libexec/.debug
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install -d -m755 "$rprefix"/node_exporter/.debug
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cp -r ./node_exporter/.debug/* "$rprefix"/node_exporter/.debug
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