scripts/rustc-version.sh

   1 #!/bin/sh
   2 # SPDX-License-Identifier: GPL-2.0
   3 #
   4 # Usage: $ ./rustc-version.sh rustc
   5 #
   6 # Print the Rust compiler version in a 6 or 7-digit form.
   7
   8 # Convert the version string x.y.z to a canonical up-to-7-digits form.
   9 #
  10 # Note that this function uses one more digit (compared to other
  11 # instances in other version scripts) to give a bit more space to
  12 # `rustc` since it will reach 1.100.0 in late 2026.
  13 get_canonical_version()
  14 {
  15         IFS=.
  16         set -- $1
  17         echo $((100000 * $1 + 100 * $2 + $3))
  18 }
  19
  20 if output=$("$@" --version 2>/dev/null); then
  21         set -- $output
  22         get_canonical_version $2
  23 else
  24         echo 0
  25         exit 1
  26 fi