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eclass/rust: Sync with Gentoo

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It's from Gentoo commit 8562c054ab313c75ce0bed12d2177f98e7020ae6.
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Flatcar Buildbot 2025-03-17 07:09:23 +00:00 committed by Krzesimir Nowak
parent 8f6331e169
commit 49274e2642
1 changed files with 24 additions and 12 deletions
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36
sdk_container/src/third_party/portage-stable/eclass/rust.eclass vendored
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@ -12,12 +12,12 @@
# An eclass to reliably depend on a Rust or Rust/LLVM combination for
# a given Rust slot. To use the eclass:
#
# 1. If required, set RUST_{MAX,MIN}_SLOT to the range of supported slots.
# 1. If required, set RUST_{MAX,MIN}_VER to the range of supported slots.
#
# 2. If rust is optional, set RUST_OPTIONAL to a non-empty value then
# appropriately gate ${RUST_DEPEND}
# appropriately gate ${RUST_DEPEND}.
#
# 3. Use rust_pkg_setup, get_rust_prefix or RUST_SLOT.
# 3. Use rust_pkg_setup, get_rust_prefix, or RUST_SLOT.
# Example use for a package supporting Rust 1.72.0 to 1.82.0:
# @CODE
@ -116,7 +116,7 @@ declare -a -g -r _RUST_SLOTS_ORDERED=(
# @USER_VARIABLE
# @DESCRIPTION:
# Specify the version (slot) of Rust to be used by the package. This is
# useful for troubleshooting and debugging purposes; If unset, the newest
# useful for troubleshooting and debugging purposes. If unset, the newest
# acceptable Rust version will be used. May be combined with ERUST_TYPE_OVERRIDE.
# This variable must not be set in ebuilds.
@ -144,6 +144,18 @@ declare -a -g -r _RUST_SLOTS_ORDERED=(
# Lowest Rust slot supported by the package. Needs to be set before
# rust_pkg_setup is called. If unset, no lower bound is assumed.
# @ECLASS_VARIABLE: RUST_SLOT
# @OUTPUT_VARIABLE
# @DESCRIPTION:
# The selected Rust slot for building, from the range defined by
# RUST_MAX_VER and RUST_MIN_VER. This is set by rust_pkg_setup.
# @ECLASS_VARIABLE: RUST_TYPE
# @OUTPUT_VARIABLE
# @DESCRIPTION:
# The selected Rust type for building, either 'source' or 'binary'.
# This is set by rust_pkg_setup.
# @ECLASS_VARIABLE: RUST_NEEDS_LLVM
# @DEFAULT_UNSET
# @DESCRIPTION:
@ -175,7 +187,7 @@ declare -a -g -r _RUST_SLOTS_ORDERED=(
# @DEFAULT_UNSET
# @DESCRIPTION:
# If set to a non-empty value, the Rust dependency will not be added
# to BDEPEND. This is useful for where packages need to gate rust behind
# to BDEPEND. This is useful for packages that need to gate rust behind
# certain USE themselves.
# @ECLASS_VARIABLE: RUST_REQ_USE
@ -303,12 +315,12 @@ unset -f _rust_set_globals
# If -d is specified, the checks are performed relative to ESYSROOT,
# and ESYSROOT-path is returned.
#
# If RUST_M{AX,IN}_SLOT is non-zero, then only Rust versions that
# If RUST_M{AX,IN}_VER is non-zero, then only Rust versions that
# are not newer or older than the specified slot(s) will be considered.
# Otherwise, all Rust versions are be considered acceptable.
# Otherwise, all Rust versions are considered acceptable.
#
# If the `rust_check_deps()` function is defined within the ebuild, it
# will be called to verify whether a particular slot is accepable.
# will be called to verify whether a particular slot is acceptable.
# Within the function scope, RUST_SLOT and LLVM_SLOT will be defined.
#
# The function should return a true status if the slot is acceptable,
@ -443,7 +455,7 @@ _get_rust_slot() {
# @FUNCTION: get_rust_path
# @USAGE: prefix slot rust_type
# @DESCRIPTION:
# Given argument of slot and rust_type, return an appropriate path
# Given arguments of prefix, slot, and rust_type, return an appropriate path
# for the Rust install. The rust_type should be either "source"
# or "binary". If the rust_type is not one of these, the function
# will die.
@ -472,7 +484,7 @@ get_rust_path() {
# and print an absolute path to it. If both -bin and regular Rust
# are installed, the regular Rust is preferred.
#
# The options and behavior are the same as get_rust_slot.
# The options and behavior are the same as _get_rust_slot.
get_rust_prefix() {
debug-print-function ${FUNCNAME} "$@"
@ -501,10 +513,10 @@ rust_prepend_path() {
# `llvm-r1_pkg_setup` call should be made in addition to this function.
# For path determination logic, please see the get_rust_prefix documentation.
#
# The highest acceptable Rust slot can be set in RUST_MAX_VER variable.
# The highest acceptable Rust slot can be set in the RUST_MAX_VER variable.
# If it is unset or empty, any slot is acceptable.
#
# The lowest acceptable Rust slot can be set in RUST_MIN_VER variable.
# The lowest acceptable Rust slot can be set in the RUST_MIN_VER variable.
# If it is unset or empty, any slot is acceptable.
#
# `CARGO` and `RUSTC` variables are set for the selected slot and exported.