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#!/usr/bin/env bash
## Commands defined by this file:
#
# * log [...]
# • Print the given messages to stderr
# * debug [...]
# • Print the given messages to stderr only if PRINT_DEBUG_LOGS is truthy
# * fail [...]
# • Print the given messages to stderr and return non-zero
# * is-set <var>
# • Return zero if the given argument names a variable that is defined
# (empty strings are still considered to be defined)
# * run-chdir <dir> [<command> ...]
# • Enter directory <dir> and execute the given command. The working
# directory of the caller is not changed.
# * have-command <command>
# • Return zero if <command> names a command that can be executed by the shell
# * is-file <path>
# * is-dir <path>
# * exists <path>
# • Return zero if <path> names a file, directory, or either, respectively.
set -o errexit
set -o pipefail
set -o nounset
is-set() {
[[ -n ${!1+x} ]]
}
log() {
echo "${@}" 1>&2
return 0
}
debug() {
if [[ "${PRINT_DEBUG_LOGS:-0}" != "0" ]]; then
log "${@}"
fi
}
fail() {
log "${@}"
return 1
}
run-chdir() {
[[ "$#" -gt 1 ]] || fail "run-chdir expects at least two arguments"
local _dir="$1"
shift
pushd "$_dir" > /dev/null
debug "Run in directory [$_dir]:" "$@"
"$@"
local _rc=$?
popd > /dev/null
return $_rc
}
is-file() { [[ -f "$1" ]];}
is-dir() { [[ -d "$1" ]];}
exists() { [[ -e "$1" ]];}
have-command() {
[[ "$#" -eq 1 ]] || fail "have-command expects a single argument"
type "$1" > /dev/null 2>&1
}
# Inhibit msys path conversion
export MSYS2_ARG_CONV_EXCL="*"
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