85 lines
1.6 KiB
Bash
85 lines
1.6 KiB
Bash
#!/bin/sh
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# Common script helpers
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#
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# This file contains common script helpers. It should be sourced in scripts
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# right after the initial environment processing.
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# This comment is used to simplify checking local copies of the script. Bump
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# this number every time a remarkable change is made to this script.
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#
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# AdGuard-Project-Version: 2
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# Deferred helpers
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not_found_msg='
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looks like a binary not found error.
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make sure you have installed the linter binaries using:
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$ make go-tools
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'
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readonly not_found_msg
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not_found() {
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if [ "$?" -eq '127' ]
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then
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# Code 127 is the exit status a shell uses when a command or a file is
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# not found, according to the Bash Hackers wiki.
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#
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# See https://wiki.bash-hackers.org/dict/terms/exit_status.
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echo "$not_found_msg" 1>&2
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fi
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}
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trap not_found EXIT
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# Helpers
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# run_linter runs the given linter with two additions:
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#
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# 1. If the first argument is "-e", run_linter exits with a nonzero exit code
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# if there is anything in the command's combined output.
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#
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# 2. In any case, run_linter adds the program's name to its combined output.
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run_linter() (
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set +e
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if [ "$VERBOSE" -lt '2' ]
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then
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set +x
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fi
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cmd="${1:?run_linter: provide a command}"
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shift
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exit_on_output='0'
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if [ "$cmd" = '-e' ]
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then
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exit_on_output='1'
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cmd="${1:?run_linter: provide a command}"
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shift
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fi
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readonly cmd
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output="$( "$cmd" "$@" )"
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exitcode="$?"
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readonly output
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if [ "$output" != '' ]
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then
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echo "$output" | sed -e "s/^/${cmd}: /"
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if [ "$exitcode" -eq '0' ] && [ "$exit_on_output" -eq '1' ]
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then
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exitcode='1'
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fi
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fi
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return "$exitcode"
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)
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