forked from cerc-io/ipld-eth-server
47 lines
1.3 KiB
Bash
Executable File
47 lines
1.3 KiB
Bash
Executable File
#!/bin/sh
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#
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# Check if a gx program is installed and if its version is at least
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# equal to a minimum version number.
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#
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# Call it for example like this:
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#
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# $ check_gx_program "gx-go" "0.2.0" "Use 'make gx_upgrade' to install or upgrade gx-go."
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#
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# or:
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#
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# $ check_gx_program "gx" "0.3" "Use 'make gx_upgrade' to install or upgrade gx."
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#
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USAGE="$0 GX_PROGRAM_NAME GX_MIN_VERSION UPGRADE_MSG"
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die() {
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printf >&2 "fatal: %s\n" "$@"
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exit 1
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}
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# Get arguments
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test "$#" -eq "3" || die "This program must be passed exactly 3 arguments" "Usage: $USAGE"
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GX_PROGRAM_NAME="$1"
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GX_MIN_VERSION="$2"
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UPGRADE_MSG="$3"
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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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. ${PREFIX}check_version
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# Check that the gx program exists
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type "$GX_PROGRAM_NAME" >/dev/null 2>&1 || die_upgrade "Program $GX_PROGRAM_NAME is not installed!"
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# Check the gx program version
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VERS_STR=$($GX_PROGRAM_NAME -v 2>&1) || die "'$GX_PROGRAM_NAME -v' failed with output: $VERS_STR"
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GX_CUR_VERSION=$(expr "$VERS_STR" : ".*$GX_PROGRAM_NAME.* version \(.*\)") || die "Invalid '$GX_PROGRAM_NAME -v' output: $VERS_STR"
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check_at_least_version "$GX_MIN_VERSION" "$GX_CUR_VERSION" "$GX_PROGRAM_NAME"
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