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45 lines
1.1 KiB
Bash
Executable File
45 lines
1.1 KiB
Bash
Executable File
#!/bin/sh
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#
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# Check that the go version is at least equal to a minimum version
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# number.
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#
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# Call it for example like this:
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#
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# $ check_go_version "1.5.2"
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#
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USAGE="$0 GO_MIN_VERSION"
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die() {
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printf >&2 "fatal: %s\n" "$@"
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exit 1
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}
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# Get arguments
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test "$#" -eq "1" || die "This program must be passed exactly 1 arguments" "Usage: $USAGE"
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GO_MIN_VERSION="$1"
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UPGRADE_MSG="Please take a look at https://golang.org/doc/install to install or upgrade go."
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# Get path to the directory containing this file
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# If $0 has no slashes, uses "./"
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PREFIX=$(expr "$0" : "\(.*\/\)") || PREFIX='./'
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# Include the 'check_at_least_version' function
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. ${PREFIX}check_version
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# Check that the go binary exists and is in the path
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GOCC=${GOCC="go"}
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type ${GOCC} >/dev/null 2>&1 || die_upgrade "go is not installed or not in the PATH!"
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# Check the go binary version
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VERS_STR=$(${GOCC} version 2>&1) || die "'go version' failed with output: $VERS_STR"
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GO_CUR_VERSION=$(expr "$VERS_STR" : ".*go version.* go\([^[:space:]]*\) .*") || die "Invalid 'go version' output: $VERS_STR"
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check_at_least_version "$GO_MIN_VERSION" "$GO_CUR_VERSION" "${GOCC}"
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