зеркало из https://github.com/golang/pkgsite.git
44 строки
1.0 KiB
Bash
44 строки
1.0 KiB
Bash
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# Copyright 2019 The Go Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style
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# license that can be found in the LICENSE file.
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# Library of useful bash functions and variables.
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if [ -t 1 ] && which tput >/dev/null 2>&1; then
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RED="$(tput setaf 1)"
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GREEN="$(tput setaf 2)"
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YELLOW="$(tput setaf 3)"
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NORMAL="$(tput sgr0)"
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else
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RED=""
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GREEN=""
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YELLOW=""
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NORMAL=""
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fi
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EXIT_CODE=0
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info() { echo -e "${GREEN}$@${NORMAL}" 1>&2; }
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warn() { echo -e "${YELLOW}$@${NORMAL}" 1>&2; }
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err() { echo -e "${RED}$@${NORMAL}" 1>&2; EXIT_CODE=1; }
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die() {
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err $@
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exit 1
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}
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# runcmd prints an info log describing the command that is about to be run, and
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# then runs it. It sets EXIT_CODE to non-zero if the command fails, but does not exit
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# the script.
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runcmd() {
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msg="$@"
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# Truncate command logging for narrow terminals.
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# Account for the 2 characters of '$ '.
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maxwidth=$(( $(tput cols) - 2 ))
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if [[ ${#msg} -gt $maxwidth ]]; then
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msg="${msg::$(( maxwidth - 3 ))}..."
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fi
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info "\$ $msg"
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$@ || err "command failed"
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}
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