Vendor dependencies for 0.3.0 release

vendor/zerocopy/ci/check_all_toolchains_tested.sh

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+#!/usr/bin/env bash
+#
+# Copyright 2024 The Fuchsia Authors
+#
+# Licensed under a BSD-style license <LICENSE-BSD>, Apache License, Version 2.0
+# <LICENSE-APACHE or https://www.apache.org/licenses/LICENSE-2.0>, or the MIT
+# license <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your option.
+# This file may not be copied, modified, or distributed except according to
+# those terms.
+
+set -eo pipefail
+
+# Check whether the set of toolchains tested in this file (other than
+# 'msrv', 'stable', and 'nightly') is equal to the set of toolchains
+# listed in the 'package.metadata.build-rs' section of Cargo.toml.
+#
+# If the inputs to `diff` are not identical, `diff` exits with a
+# non-zero error code, which causes this script to fail (thanks to
+# `set -e`).
+diff \
+  <(cat .github/workflows/ci.yml | yq '.jobs.build_test.strategy.matrix.toolchain | .[]' | \
+    sort -u | grep -v '^\(msrv\|stable\|nightly\)$') \
+  <(cargo metadata -q --format-version 1 | \
+    jq -r ".packages[] | select(.name == \"zerocopy\").metadata.\"build-rs\" | keys | .[]" | \
+    sort -u) >&2

vendor/zerocopy/ci/check_fmt.sh

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+#!/usr/bin/env bash
+#
+# Copyright 2024 The Fuchsia Authors
+#
+# Licensed under a BSD-style license <LICENSE-BSD>, Apache License, Version 2.0
+# <LICENSE-APACHE or https://www.apache.org/licenses/LICENSE-2.0>, or the MIT
+# license <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your option.
+# This file may not be copied, modified, or distributed except according to
+# those terms.
+
+set -eo pipefail
+files=$(find . -iname '*.rs' -type f -not -path './target/*')
+# check that find succeeded
+if [[ -z $files ]]
+then
+	exit 1
+fi
+./cargo.sh +nightly fmt --check -- $files >&2

vendor/zerocopy/ci/check_job_dependencies.sh

@@ -0,0 +1,35 @@
+#!/usr/bin/env bash
+#
+# Copyright 2024 The Fuchsia Authors
+#
+# Licensed under a BSD-style license <LICENSE-BSD>, Apache License, Version 2.0
+# <LICENSE-APACHE or https://www.apache.org/licenses/LICENSE-2.0>, or the MIT
+# license <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your option.
+# This file may not be copied, modified, or distributed except according to
+# those terms.
+
+set -eo pipefail
+which yq > /dev/null
+jobs=$(for i in $(find .github -iname '*.yaml' -or -iname '*.yml')
+  do
+    # Select jobs that are triggered by pull request.
+    if yq -e '.on | has("pull_request")' "$i" 2>/dev/null >/dev/null
+    then
+      # This gets the list of jobs that all-jobs-succeed does not depend on.
+      comm -23 \
+        <(yq -r '.jobs | keys | .[]' "$i" | sort | uniq) \
+        <(yq -r '.jobs.all-jobs-succeed.needs[]' "$i" | sort | uniq)
+    fi
+
+  # The grep call here excludes all-jobs-succeed from the list of jobs that
+  # all-jobs-succeed does not depend on.  If all-jobs-succeed does
+  # not depend on itself, we do not care about it.
+  done | sort | uniq | (grep -v '^all-jobs-succeed$' || true)
+)
+
+if [ -n "$jobs" ]
+then
+  missing_jobs="$(echo "$jobs" | tr ' ' '\n')"
+  echo "all-jobs-succeed missing dependencies on some jobs: $missing_jobs" | tee -a $GITHUB_STEP_SUMMARY >&2
+  exit 1
+fi

vendor/zerocopy/ci/check_readme.sh

@@ -0,0 +1,19 @@
+#!/usr/bin/env bash
+#
+# Copyright 2024 The Fuchsia Authors
+#
+# Licensed under a BSD-style license <LICENSE-BSD>, Apache License, Version 2.0
+# <LICENSE-APACHE or https://www.apache.org/licenses/LICENSE-2.0>, or the MIT
+# license <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your option.
+# This file may not be copied, modified, or distributed except according to
+# those terms.
+
+set -eo pipefail
+
+# Install again in case the installation failed during the
+# `generate_cache` step. We treat that step as best-effort and
+# suppress all errors from it.
+cargo install -q cargo-readme --version 3.2.0
+
+diff <(cargo -q run --manifest-path tools/Cargo.toml -p generate-readme) README.md >&2
+exit $?

vendor/zerocopy/ci/check_todo.sh

@@ -0,0 +1,34 @@
+#!/usr/bin/env bash
+#
+# Copyright 2025 The Fuchsia Authors
+#
+# Licensed under a BSD-style license <LICENSE-BSD>, Apache License, Version 2.0
+# <LICENSE-APACHE or https://www.apache.org/licenses/LICENSE-2.0>, or the MIT
+# license <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your option.
+# This file may not be copied, modified, or distributed except according to
+# those terms.
+
+set -euo pipefail
+
+# This allows us to leave XODO comments in this file and have them still be
+# picked up by this script without having the script itself trigger false
+# positives. The alternative would be to exclude this script entirely, which
+# would mean that we couldn't use XODO comments in this script.
+KEYWORD=$(echo XODO | sed -e 's/X/T/')
+
+# Make sure `rg` is installed (if this fails, `set -e` above will cause the
+# script to exit).
+rg --version >/dev/null
+
+# -H: Print filename (default for multiple files/recursive)
+# -n: Print line number
+# -w: Match whole words
+output=$(rg -H -n -w "$KEYWORD" || true)
+
+if [ -n "$output" ]; then
+  echo "Found $KEYWORD markers in the codebase." >&2
+  echo "$KEYWORD is used for tasks that should be done before merging a PR; if you want to leave a message in the codebase, use FIXME." >&2
+  echo "" >&2
+  echo "$output" >&2
+  exit 1
+fi

vendor/zerocopy/ci/check_versions.sh

@@ -0,0 +1,70 @@
+#!/usr/bin/env bash
+#
+# Copyright 2024 The Fuchsia Authors
+#
+# Licensed under a BSD-style license <LICENSE-BSD>, Apache License, Version 2.0
+# <LICENSE-APACHE or https://www.apache.org/licenses/LICENSE-2.0>, or the MIT
+# license <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your option.
+# This file may not be copied, modified, or distributed except according to
+# those terms.
+
+set -eo pipefail
+
+# Usage: version <crate-name>
+function version {
+  cargo metadata -q --format-version 1 | jq -r ".packages[] | select(.name == \"$1\").version"
+}
+
+ver_zerocopy=$(version zerocopy)
+ver_zerocopy_derive=$(version zerocopy-derive)
+
+# Usage: dependency-version <kind> <target>
+function dependency-version {
+  KIND="$1"
+  TARGET="$2"
+  cargo metadata -q --format-version 1 \
+    | jq -r ".packages[] | select(.name == \"zerocopy\").dependencies[] | select((.name == \"zerocopy-derive\") and .kind == $KIND and .target == $TARGET).req"
+}
+
+# The non-dev dependency version (kind `null` filters out the dev
+# dependency, and target `null` filters out the targeted version).
+zerocopy_derive_dep_ver=$(dependency-version null null)
+
+# The non-dev dependency, targeted version (kind `null` filters out
+# the dev dependency).
+zerocopy_derive_targeted_ver=$(dependency-version null '"cfg(any())"')
+
+# The dev dependency version (kind `"dev"` selects only the dev
+# dependency).
+zerocopy_derive_dev_dep_ver=$(dependency-version '"dev"' null)
+
+function assert-match {
+  VER_A="$1"
+  VER_B="$2"
+  SUCCESS_MSG="$3"
+  FAILURE_MSG="$4"
+  if [[ "$VER_A" == "$VER_B" ]]; then
+    echo "$SUCCESS_MSG" | tee -a $GITHUB_STEP_SUMMARY
+  else
+    echo "$FAILURE_MSG" | tee -a $GITHUB_STEP_SUMMARY >&2
+    exit 1
+  fi
+}
+
+assert-match "$ver_zerocopy" "$ver_zerocopy_derive" \
+  "Same crate version ($ver_zerocopy) found for zerocopy and zerocopy-derive." \
+  "Different crate versions found for zerocopy ($ver_zerocopy) and zerocopy-derive ($ver_zerocopy_derive)."
+
+# Note the leading `=` sign - the dependency needs to be an exact one.
+assert-match "=$ver_zerocopy_derive" "$zerocopy_derive_dep_ver" \
+  "zerocopy depends upon same version of zerocopy-derive in-tree ($zerocopy_derive_dep_ver)." \
+  "zerocopy depends upon different version of zerocopy-derive ($zerocopy_derive_dep_ver) than the one in-tree ($ver_zerocopy_derive)."
+
+# Note the leading `=` sign - the dependency needs to be an exact one.
+assert-match "=$ver_zerocopy_derive" "$zerocopy_derive_dev_dep_ver" \
+  "In dev mode, zerocopy depends upon same version of zerocopy-derive in-tree ($zerocopy_derive_dev_dep_ver)." \
+  "In dev mode, zerocopy depends upon different version of zerocopy-derive ($zerocopy_derive_dev_dep_ver) than the one in-tree ($ver_zerocopy_derive)."
+
+assert-match "$zerocopy_derive_dep_ver" "$zerocopy_derive_targeted_ver" \
+  "Same crate version ($zerocopy_derive_dep_ver) found for optional and targeted zerocopy-derive dependency." \
+  "Different crate versions found for optional ($zerocopy_derive_dep_ver) and targeted ($zerocopy_derive_targeted_ver) dependency."

vendor/zerocopy/ci/release_crate_version.sh

@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+#
+# Copyright 2024 The Fuchsia Authors
+#
+# Licensed under a BSD-style license <LICENSE-BSD>, Apache License, Version 2.0
+# <LICENSE-APACHE or https://www.apache.org/licenses/LICENSE-2.0>, or the MIT
+# license <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your option.
+# This file may not be copied, modified, or distributed except according to
+# those terms.
+
+set -e
+
+if [ $# -ne 1 ]; then
+    echo "Usage: $0 <version>" >&2
+    exit 1
+fi
+
+VERSION="$1"
+
+sed -i -e "s/^zerocopy-derive = { version = \"=[0-9a-zA-Z\.-]*\"/zerocopy-derive = { version = \"=$VERSION\"/" Cargo.toml
+sed -i -e "s/^version = \"[0-9a-zA-Z\.-]*\"/version = \"$VERSION\"/" Cargo.toml zerocopy-derive/Cargo.toml