|  | #!/bin/sh | 
|  | # SPDX-License-Identifier: GPL-2.0 | 
|  | # | 
|  | # Usage: $ ./rustc-version.sh rustc | 
|  | # | 
|  | # Print the Rust compiler version in a 6 or 7-digit form. | 
|  |  | 
|  | # Convert the version string x.y.z to a canonical up-to-7-digits form. | 
|  | # | 
|  | # Note that this function uses one more digit (compared to other | 
|  | # instances in other version scripts) to give a bit more space to | 
|  | # `rustc` since it will reach 1.100.0 in late 2026. | 
|  | get_canonical_version() | 
|  | { | 
|  | IFS=. | 
|  | set -- $1 | 
|  | echo $((100000 * $1 + 100 * $2 + $3)) | 
|  | } | 
|  |  | 
|  | if output=$("$@" --version 2>/dev/null); then | 
|  | set -- $output | 
|  | get_canonical_version $2 | 
|  | else | 
|  | echo 0 | 
|  | exit 1 | 
|  | fi |