[RFC PATCH 0/3] Add helper and documentation for rust packaging

[RFC PATCH 0/3] Add helper and documentation for rust packaging

['Quirin Gylstorff' via isar-users]

From: Quirin Gylstorff <quirin.gylstorff@siemens.com>


This adds based on https://rust-team.pages.debian.net/book/ some
documentation add a generator to package rust crates.

The generator is the same as used by Debian but we don't use the
approach from debcargo-conf as `debcargo cargo` executes the following
steps add once:
- fetch source
- generate orig tarball
- generate debian folder

As this is not compatible with the concepts of bitbake recipes we use
the http fetcher and the by `debcargo` generated debian folder. This
approach is intended to build crates stored in a registry(e.g. crates.io).

The crates package generated by this script should be package upstream
to avoid maintaining them forever.

Crates not in a registry need to manually packaged.

Quirin Gylstorff (3):
  Add script to generate a recipe for cargo.io crates
  Add example of a rust hello world as isar recipe
  user_manual: add rust section

 doc/user_manual.md                            | 66 ++++++++++++++
 .../recipes-app/rust-hello-isar/files/rules   | 27 ++++++
 .../files/rust-hello-isar/Cargo.toml          |  6 ++
 .../files/rust-hello-isar/src/main.rs         |  3 +
 .../rust-hello-isar/rust-hello-isar_0.1.bb    | 22 +++++
 scripts/generate_cargo_crate.sh               | 85 +++++++++++++++++++
 6 files changed, 209 insertions(+)
 create mode 100755 meta-isar/recipes-app/rust-hello-isar/files/rules
 create mode 100644 meta-isar/recipes-app/rust-hello-isar/files/rust-hello-isar/Cargo.toml
 create mode 100644 meta-isar/recipes-app/rust-hello-isar/files/rust-hello-isar/src/main.rs
 create mode 100644 meta-isar/recipes-app/rust-hello-isar/rust-hello-isar_0.1.bb
 create mode 100755 scripts/generate_cargo_crate.sh

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[RFC PATCH 1/3] Add script to generate a recipe for cargo.io crates

['Quirin Gylstorff' via isar-users]

From: Quirin Gylstorff <quirin.gylstorff@siemens.com>

This script allows to create a recipe for building rust crates which
are not part of Debian. It uses for this `debcargo package` and follows
the process defined in https://rust-team.pages.debian.net/book.

Signed-off-by: Quirin Gylstorff <quirin.gylstorff@siemens.com>
---
 scripts/generate_cargo_crate.sh | 85 +++++++++++++++++++++++++++++++++
 1 file changed, 85 insertions(+)
 create mode 100755 scripts/generate_cargo_crate.sh

diff --git a/scripts/generate_cargo_crate.sh b/scripts/generate_cargo_crate.sh
new file mode 100755
index 00000000..759bbc9e
--- /dev/null
+++ b/scripts/generate_cargo_crate.sh
@@ -0,0 +1,85 @@
+#!/bin/bash
+# This software is a part of ISAR.
+# Copyright (C) 2026 Siemens AG
+
+usage() {
+    echo "This script generates a scaffold for rust crates from crates.io."
+    echo "It uses debcargo to download and generate the debian folder."
+    echo "USAGE: $0 <CRATE_NAME> [CRATE_VERSION]"
+}
+
+if [ $# -eq 0 ]; then
+    usage
+    exit 1
+fi
+case $1 in
+    -h|--help)
+            usage
+            exit 0
+            ;;
+    *)
+        true
+        ;;
+esac
+
+package_name=$1
+package_version=
+if [ $# -gt 1 ]; then
+    package_version=$2
+fi
+
+export NAME="isar-users isar"
+
+for dep in jq debcargo curl; do
+    if ! command -v "$dep" ;then
+        echo "Could not find tool dependency $dep !"
+        exit 1
+    fi
+done
+
+source_name="rust-$package_name"
+mkdir -p "$source_name/files"
+# generate in the current directory to avoid the following
+# debcargo error:
+# Invalid cross-device link (os error 18)
+TMP_DIR=$(mktemp -d -p .)
+pushd "$source_name" || exit 1
+debcargo package "$package_name" "$package_version" --directory "$TMP_DIR"
+cp -r "${TMP_DIR}"/debian files/
+if [ -z "$package_version" ]; then
+    package_version=$(grep -oP "X-Cargo-Crate-Version:\K.*" "${TMP_DIR}"/debian/control | tr -d "[:blank:]")
+fi
+rm -rf "$TMP_DIR"
+tarball_checksum="$(curl --silent "https://crates.io/api/v1/crates/${package_name}/${package_version}" | jq ".version.checksum" )"
+if [ "${tarball_checksum}" = "null" ] ; then
+    echo "$package_name in $package_version could not be found in crates.io"
+    exit 1
+fi
+cat << EOF >> "${source_name}_${package_version}".bb
+inherit dpkg
+
+SRC_URI = "https://crates.io/api/v1/crates/${package_name}/\${PV}/download;downloadfilename=${PN}_${PV}.tar.gz"
+SRC_URI += "file://debian"
+
+SRC_URI[sha256sum] = ${tarball_checksum}
+
+S = "\${WORKDIR}/${package_name}-\${PV}"
+
+# In most cases we want to package a library crate from crates.io
+PROVIDES += "librust-${package_name}-dev"
+
+do_prepare_build() {
+    cp -r \${WORKDIR}/debian \${S}/
+    cd \${WORKDIR}
+    tar cJf \${PN}_\${PV}.orig.tar.xz \${TAR_REPRO_OPTS} ${package_name}-\${PV}
+}
+EOF
+
+
+popd || exit 1
+
+echo "Finished generating isar scaffold for package $package_name in version $package_version"
+echo ""
+echo "Next steps:"
+echo "  - Check if the package builds and add the necessary patches, e.g. relax dependencies to the debian folder."
+echo "  - Also add the package to Debian by following https://rust-team.pages.debian.net/book/"
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[RFC PATCH 2/3] Add example of a rust hello world as isar recipe

['Quirin Gylstorff' via isar-users]

From: Quirin Gylstorff <quirin.gylstorff@siemens.com>

Signed-off-by: Quirin Gylstorff <quirin.gylstorff@siemens.com>
---
 .../recipes-app/rust-hello-isar/files/rules   | 27 +++++++++++++++++++
 .../files/rust-hello-isar/Cargo.toml          |  6 +++++
 .../files/rust-hello-isar/src/main.rs         |  3 +++
 .../rust-hello-isar/rust-hello-isar_0.1.bb    | 22 +++++++++++++++
 4 files changed, 58 insertions(+)
 create mode 100755 meta-isar/recipes-app/rust-hello-isar/files/rules
 create mode 100644 meta-isar/recipes-app/rust-hello-isar/files/rust-hello-isar/Cargo.toml
 create mode 100644 meta-isar/recipes-app/rust-hello-isar/files/rust-hello-isar/src/main.rs
 create mode 100644 meta-isar/recipes-app/rust-hello-isar/rust-hello-isar_0.1.bb

diff --git a/meta-isar/recipes-app/rust-hello-isar/files/rules b/meta-isar/recipes-app/rust-hello-isar/files/rules
new file mode 100755
index 00000000..213cc876
--- /dev/null
+++ b/meta-isar/recipes-app/rust-hello-isar/files/rules
@@ -0,0 +1,27 @@
+#!/usr/bin/make -f
+
+export DEB_BUILD_MAINT_OPTIONS = hardening=+all
+DPKG_EXPORT_BUILDFLAGS = 1
+include /usr/share/dpkg/default.mk
+include /usr/share/rustc/architecture.mk
+export DEB_HOST_RUST_TYPE
+export PATH:=/usr/share/cargo/bin:$(PATH)
+export CARGO=/usr/share/cargo/bin/cargo
+export CARGO_HOME=$(CURDIR)/debian/cargo_home
+export CARGO_REGISTRY=$(CURDIR)/debian/cargo_registry
+export DEB_CARGO_CRATE=$(DEB_SOURCE)_$(DEB_VERSION_UPSTREAM)
+
+%:
+	dh $@ --buildsystem=cargo
+
+execute_after_dh_auto_clean:
+	$(CARGO) clean
+	rm -rf $(CARGO_HOME)
+	rm -rf $(CARGO_REGISTRY)
+	rm -f debian/cargo-checksum.json
+
+execute_before_dh_auto_configure:
+	$(CARGO) prepare-debian $(CARGO_REGISTRY) --link-from-system
+	rm -f Cargo.lock
+	touch debian/cargo-checksum.json
+
diff --git a/meta-isar/recipes-app/rust-hello-isar/files/rust-hello-isar/Cargo.toml b/meta-isar/recipes-app/rust-hello-isar/files/rust-hello-isar/Cargo.toml
new file mode 100644
index 00000000..f761691e
--- /dev/null
+++ b/meta-isar/recipes-app/rust-hello-isar/files/rust-hello-isar/Cargo.toml
@@ -0,0 +1,6 @@
+[package]
+name = "rust-hello-isar"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
diff --git a/meta-isar/recipes-app/rust-hello-isar/files/rust-hello-isar/src/main.rs b/meta-isar/recipes-app/rust-hello-isar/files/rust-hello-isar/src/main.rs
new file mode 100644
index 00000000..50469bdf
--- /dev/null
+++ b/meta-isar/recipes-app/rust-hello-isar/files/rust-hello-isar/src/main.rs
@@ -0,0 +1,3 @@
+fn main() {
+    println!("Hello, isar!");
+}
diff --git a/meta-isar/recipes-app/rust-hello-isar/rust-hello-isar_0.1.bb b/meta-isar/recipes-app/rust-hello-isar/rust-hello-isar_0.1.bb
new file mode 100644
index 00000000..2d57b8c8
--- /dev/null
+++ b/meta-isar/recipes-app/rust-hello-isar/rust-hello-isar_0.1.bb
@@ -0,0 +1,22 @@
+# Sample application
+#
+# This software is a part of ISAR.
+# Copyright (C) 2026 Siemens AG
+
+inherit dpkg
+
+DESCRIPTION = "Hello world example for Rust"
+MAINTAINER = "isar-users <isar-users@googlegroups.com>"
+
+SRC_URI = "file://${PN} \
+           file://rules"
+
+DEBIAN_BUILD_DEPENDS += "dh-cargo"
+
+S = "${WORKDIR}/${PN}"
+
+do_prepare_build() {
+    deb_debianize
+    install  -m 644 ${WORKDIR}/rules ${S}/debian/rules
+}
+
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[RFC PATCH 3/3] user_manual: add rust section

['Quirin Gylstorff' via isar-users]

From: Quirin Gylstorff <quirin.gylstorff@siemens.com>

Signed-off-by: Quirin Gylstorff <quirin.gylstorff@siemens.com>
---
 doc/user_manual.md | 66 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 66 insertions(+)

diff --git a/doc/user_manual.md b/doc/user_manual.md
index 7520854b..75f72355 100644
--- a/doc/user_manual.md
+++ b/doc/user_manual.md
@@ -20,6 +20,7 @@ Copyright (C) 2016-2019, ilbers GmbH
  - [Customize and configure image](#customize-and-configure-image)
  - [Create a Custom Image Recipe](#create-a-custom-image-recipe)
  - [Add a Custom Application](#add-a-custom-application)
+ - [Rust in ISAR Builds](#rust-in-isar-builds)
  - [Build statistics collection](#build-statistics-collection)
  - [Isar Cross-compilation](#isar-cross-compilation)
  - [Examining and debugging package generation inside their schroot rootfs](#examining-and-debugging-package-generation-inside-their-schroot-rootfs)
@@ -1039,6 +1040,71 @@ be installed via `IMAGE_INSTALL`. Have a look at `prebuilt-deb`.
 
 ---
 
+## Rust in ISAR Builds
+
+This is a collection of recipes and links on how to
+package rust crates.
+
+This document takes most of its input from https://rust-team.pages.debian.net/book
+which contains the practices of the Debian rust team.
+
+### Crates on crates.io
+
+We provide a generator in `scripts/generate_cargo_crate.sh` which
+generates the scaffold for these crates. This follows more or less
+the approach of Debian with https://salsa.debian.org/rust-team/debcargo-conf.
+
+The user steps necessary are the following:
+
+1. Generate the package by calling:
+`scripts/generate_cargo_crate.sh <CRATE_NAME> [CRATE_VERSION]`.
+
+2. Patch to build with the current Debian release, e.g. relax the dependencies
+in `Cargo.toml`
+
+
+### Crates not on crates.io
+
+There is currently no generator and it is recommended to follow the traditional
+packaging approach, see also https://rust-team.pages.debian.net/book/process-workspace.html#general-setup.
+
+A working rules file could look like this:
+```
+#!/usr/bin/make -f
+
+export DEB_BUILD_MAINT_OPTIONS = hardening=+all
+DPKG_EXPORT_BUILDFLAGS = 1
+include /usr/share/dpkg/default.mk
+include /usr/share/rustc/architecture.mk
+export DEB_HOST_RUST_TYPE
+export PATH:=/usr/share/cargo/bin:$(PATH)
+export CARGO=/usr/share/cargo/bin/cargo
+export CARGO_HOME=$(CURDIR)/debian/cargo_home
+export CARGO_REGISTRY=$(CURDIR)/debian/cargo_registry
+export DEB_CARGO_CRATE=$(DEB_SOURCE)_$(DEB_VERSION_UPSTREAM)
+
+%:
+	dh $@ --buildsystem=cargo
+
+execute_after_dh_auto_clean:
+	$(CARGO) clean
+	rm -rf $(CARGO_HOME)
+	rm -rf $(CARGO_REGISTRY)
+	rm -f debian/cargo-checksum.json
+
+execute_before_dh_auto_configure:
+	$(CARGO) prepare-debian $(CARGO_REGISTRY) --link-from-system
+	rm -f Cargo.lock
+	touch debian/cargo-checksum.json
+
+```
+This example works for a cargo application and cannot be reused by other components
+as the file `debian/cargo-checksum.json` is empty.
+
+An example for the initial cargo crate can be found at `meta-isar/recipes-app/rust-hello-isar/`.
+
+---
+
 ## Build statistics collection
 
 While isar is building the system, build statistics is collected in
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Re: [RFC PATCH 1/3] Add script to generate a recipe for cargo.io crates

['Jan Kiszka' via isar-users]

On 23.03.26 11:52, 'Quirin Gylstorff' via isar-users wrote:
> From: Quirin Gylstorff <quirin.gylstorff@siemens.com>
> 
> This script allows to create a recipe for building rust crates which
> are not part of Debian. It uses for this `debcargo package` and follows
> the process defined in https://rust-team.pages.debian.net/book.
> 
> Signed-off-by: Quirin Gylstorff <quirin.gylstorff@siemens.com>
> ---
>  scripts/generate_cargo_crate.sh | 85 +++++++++++++++++++++++++++++++++
>  1 file changed, 85 insertions(+)
>  create mode 100755 scripts/generate_cargo_crate.sh
> 
> diff --git a/scripts/generate_cargo_crate.sh b/scripts/generate_cargo_crate.sh
> new file mode 100755
> index 00000000..759bbc9e
> --- /dev/null
> +++ b/scripts/generate_cargo_crate.sh
> @@ -0,0 +1,85 @@
> +#!/bin/bash
> +# This software is a part of ISAR.
> +# Copyright (C) 2026 Siemens AG
> +
> +usage() {
> +    echo "This script generates a scaffold for rust crates from crates.io."
> +    echo "It uses debcargo to download and generate the debian folder."
> +    echo "USAGE: $0 <CRATE_NAME> [CRATE_VERSION]"
> +}
> +
> +if [ $# -eq 0 ]; then
> +    usage
> +    exit 1
> +fi
> +case $1 in
> +    -h|--help)
> +            usage
> +            exit 0
> +            ;;
> +    *)
> +        true
> +        ;;
> +esac
> +
> +package_name=$1
> +package_version=
> +if [ $# -gt 1 ]; then
> +    package_version=$2
> +fi
> +
> +export NAME="isar-users isar"
> +
> +for dep in jq debcargo curl; do
> +    if ! command -v "$dep" ;then
> +        echo "Could not find tool dependency $dep !"
> +        exit 1
> +    fi
> +done
> +
> +source_name="rust-$package_name"
> +mkdir -p "$source_name/files"
> +# generate in the current directory to avoid the following
> +# debcargo error:
> +# Invalid cross-device link (os error 18)
> +TMP_DIR=$(mktemp -d -p .)
> +pushd "$source_name" || exit 1
> +debcargo package "$package_name" "$package_version" --directory "$TMP_DIR"
> +cp -r "${TMP_DIR}"/debian files/
> +if [ -z "$package_version" ]; then
> +    package_version=$(grep -oP "X-Cargo-Crate-Version:\K.*" "${TMP_DIR}"/debian/control | tr -d "[:blank:]")
> +fi
> +rm -rf "$TMP_DIR"
> +tarball_checksum="$(curl --silent "https://crates.io/api/v1/crates/${package_name}/${package_version}" | jq ".version.checksum" )"
> +if [ "${tarball_checksum}" = "null" ] ; then
> +    echo "$package_name in $package_version could not be found in crates.io"
> +    exit 1
> +fi
> +cat << EOF >> "${source_name}_${package_version}".bb

Maybe leave a comment like this behind:

# Created by generate_cargo_crate.sh.
# SPDX-License-Identifier: MIT-0

That license is like the MIT, except that it comes without the
attribution paragraph, thus allows re-licensing without hassles.

> +inherit dpkg
> +
> +SRC_URI = "https://crates.io/api/v1/crates/${package_name}/\${PV}/download;downloadfilename=${PN}_${PV}.tar.gz"
> +SRC_URI += "file://debian"
> +
> +SRC_URI[sha256sum] = ${tarball_checksum}
> +
> +S = "\${WORKDIR}/${package_name}-\${PV}"
> +
> +# In most cases we want to package a library crate from crates.io
> +PROVIDES += "librust-${package_name}-dev"
> +
> +do_prepare_build() {
> +    cp -r \${WORKDIR}/debian \${S}/
> +    cd \${WORKDIR}
> +    tar cJf \${PN}_\${PV}.orig.tar.xz \${TAR_REPRO_OPTS} ${package_name}-\${PV}
> +}
> +EOF
> +
> +
> +popd || exit 1
> +
> +echo "Finished generating isar scaffold for package $package_name in version $package_version"
> +echo ""
> +echo "Next steps:"
> +echo "  - Check if the package builds and add the necessary patches, e.g. relax dependencies to the debian folder."
> +echo "  - Also add the package to Debian by following https://rust-team.pages.debian.net/book/"

Jan

-- 
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Linux Expert Center

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Re: [RFC PATCH 2/3] Add example of a rust hello world as isar recipe

['Jan Kiszka' via isar-users]

On 23.03.26 11:52, 'Quirin Gylstorff' via isar-users wrote:
> From: Quirin Gylstorff <quirin.gylstorff@siemens.com>
> 

Was the recipe generated as well, just augmented afterwards? :)

Jan

> Signed-off-by: Quirin Gylstorff <quirin.gylstorff@siemens.com>
> ---
>  .../recipes-app/rust-hello-isar/files/rules   | 27 +++++++++++++++++++
>  .../files/rust-hello-isar/Cargo.toml          |  6 +++++
>  .../files/rust-hello-isar/src/main.rs         |  3 +++
>  .../rust-hello-isar/rust-hello-isar_0.1.bb    | 22 +++++++++++++++
>  4 files changed, 58 insertions(+)
>  create mode 100755 meta-isar/recipes-app/rust-hello-isar/files/rules
>  create mode 100644 meta-isar/recipes-app/rust-hello-isar/files/rust-hello-isar/Cargo.toml
>  create mode 100644 meta-isar/recipes-app/rust-hello-isar/files/rust-hello-isar/src/main.rs
>  create mode 100644 meta-isar/recipes-app/rust-hello-isar/rust-hello-isar_0.1.bb
> 
> diff --git a/meta-isar/recipes-app/rust-hello-isar/files/rules b/meta-isar/recipes-app/rust-hello-isar/files/rules
> new file mode 100755
> index 00000000..213cc876
> --- /dev/null
> +++ b/meta-isar/recipes-app/rust-hello-isar/files/rules
> @@ -0,0 +1,27 @@
> +#!/usr/bin/make -f
> +
> +export DEB_BUILD_MAINT_OPTIONS = hardening=+all
> +DPKG_EXPORT_BUILDFLAGS = 1
> +include /usr/share/dpkg/default.mk
> +include /usr/share/rustc/architecture.mk
> +export DEB_HOST_RUST_TYPE
> +export PATH:=/usr/share/cargo/bin:$(PATH)
> +export CARGO=/usr/share/cargo/bin/cargo
> +export CARGO_HOME=$(CURDIR)/debian/cargo_home
> +export CARGO_REGISTRY=$(CURDIR)/debian/cargo_registry
> +export DEB_CARGO_CRATE=$(DEB_SOURCE)_$(DEB_VERSION_UPSTREAM)
> +
> +%:
> +	dh $@ --buildsystem=cargo
> +
> +execute_after_dh_auto_clean:
> +	$(CARGO) clean
> +	rm -rf $(CARGO_HOME)
> +	rm -rf $(CARGO_REGISTRY)
> +	rm -f debian/cargo-checksum.json
> +
> +execute_before_dh_auto_configure:
> +	$(CARGO) prepare-debian $(CARGO_REGISTRY) --link-from-system
> +	rm -f Cargo.lock
> +	touch debian/cargo-checksum.json
> +
> diff --git a/meta-isar/recipes-app/rust-hello-isar/files/rust-hello-isar/Cargo.toml b/meta-isar/recipes-app/rust-hello-isar/files/rust-hello-isar/Cargo.toml
> new file mode 100644
> index 00000000..f761691e
> --- /dev/null
> +++ b/meta-isar/recipes-app/rust-hello-isar/files/rust-hello-isar/Cargo.toml
> @@ -0,0 +1,6 @@
> +[package]
> +name = "rust-hello-isar"
> +version = "0.1.0"
> +edition = "2024"
> +
> +[dependencies]
> diff --git a/meta-isar/recipes-app/rust-hello-isar/files/rust-hello-isar/src/main.rs b/meta-isar/recipes-app/rust-hello-isar/files/rust-hello-isar/src/main.rs
> new file mode 100644
> index 00000000..50469bdf
> --- /dev/null
> +++ b/meta-isar/recipes-app/rust-hello-isar/files/rust-hello-isar/src/main.rs
> @@ -0,0 +1,3 @@
> +fn main() {
> +    println!("Hello, isar!");
> +}
> diff --git a/meta-isar/recipes-app/rust-hello-isar/rust-hello-isar_0.1.bb b/meta-isar/recipes-app/rust-hello-isar/rust-hello-isar_0.1.bb
> new file mode 100644
> index 00000000..2d57b8c8
> --- /dev/null
> +++ b/meta-isar/recipes-app/rust-hello-isar/rust-hello-isar_0.1.bb
> @@ -0,0 +1,22 @@
> +# Sample application
> +#
> +# This software is a part of ISAR.
> +# Copyright (C) 2026 Siemens AG
> +
> +inherit dpkg
> +
> +DESCRIPTION = "Hello world example for Rust"
> +MAINTAINER = "isar-users <isar-users@googlegroups.com>"
> +
> +SRC_URI = "file://${PN} \
> +           file://rules"
> +
> +DEBIAN_BUILD_DEPENDS += "dh-cargo"
> +
> +S = "${WORKDIR}/${PN}"
> +
> +do_prepare_build() {
> +    deb_debianize
> +    install  -m 644 ${WORKDIR}/rules ${S}/debian/rules
> +}
> +

-- 
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Linux Expert Center

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Re: [RFC PATCH 2/3] Add example of a rust hello world as isar recipe

['Quirin Gylstorff' via isar-users]

On 3/23/26 12:21 PM, Jan Kiszka wrote:
> On 23.03.26 11:52, 'Quirin Gylstorff' via isar-users wrote:
>> From: Quirin Gylstorff <quirin.gylstorff@siemens.com>
>>
> 
> Was the recipe generated as well, just augmented afterwards? :)

No that was written manually. I was thinking about adding a generator 
but that should be discussed.

Quirin

> 
> Jan
> 
>> Signed-off-by: Quirin Gylstorff <quirin.gylstorff@siemens.com>
>> ---
>>   .../recipes-app/rust-hello-isar/files/rules   | 27 +++++++++++++++++++
>>   .../files/rust-hello-isar/Cargo.toml          |  6 +++++
>>   .../files/rust-hello-isar/src/main.rs         |  3 +++
>>   .../rust-hello-isar/rust-hello-isar_0.1.bb    | 22 +++++++++++++++
>>   4 files changed, 58 insertions(+)
>>   create mode 100755 meta-isar/recipes-app/rust-hello-isar/files/rules
>>   create mode 100644 meta-isar/recipes-app/rust-hello-isar/files/rust-hello-isar/Cargo.toml
>>   create mode 100644 meta-isar/recipes-app/rust-hello-isar/files/rust-hello-isar/src/main.rs
>>   create mode 100644 meta-isar/recipes-app/rust-hello-isar/rust-hello-isar_0.1.bb
>>
>> diff --git a/meta-isar/recipes-app/rust-hello-isar/files/rules b/meta-isar/recipes-app/rust-hello-isar/files/rules
>> new file mode 100755
>> index 00000000..213cc876
>> --- /dev/null
>> +++ b/meta-isar/recipes-app/rust-hello-isar/files/rules
>> @@ -0,0 +1,27 @@
>> +#!/usr/bin/make -f
>> +
>> +export DEB_BUILD_MAINT_OPTIONS = hardening=+all
>> +DPKG_EXPORT_BUILDFLAGS = 1
>> +include /usr/share/dpkg/default.mk
>> +include /usr/share/rustc/architecture.mk
>> +export DEB_HOST_RUST_TYPE
>> +export PATH:=/usr/share/cargo/bin:$(PATH)
>> +export CARGO=/usr/share/cargo/bin/cargo
>> +export CARGO_HOME=$(CURDIR)/debian/cargo_home
>> +export CARGO_REGISTRY=$(CURDIR)/debian/cargo_registry
>> +export DEB_CARGO_CRATE=$(DEB_SOURCE)_$(DEB_VERSION_UPSTREAM)
>> +
>> +%:
>> +	dh $@ --buildsystem=cargo
>> +
>> +execute_after_dh_auto_clean:
>> +	$(CARGO) clean
>> +	rm -rf $(CARGO_HOME)
>> +	rm -rf $(CARGO_REGISTRY)
>> +	rm -f debian/cargo-checksum.json
>> +
>> +execute_before_dh_auto_configure:
>> +	$(CARGO) prepare-debian $(CARGO_REGISTRY) --link-from-system
>> +	rm -f Cargo.lock
>> +	touch debian/cargo-checksum.json
>> +
>> diff --git a/meta-isar/recipes-app/rust-hello-isar/files/rust-hello-isar/Cargo.toml b/meta-isar/recipes-app/rust-hello-isar/files/rust-hello-isar/Cargo.toml
>> new file mode 100644
>> index 00000000..f761691e
>> --- /dev/null
>> +++ b/meta-isar/recipes-app/rust-hello-isar/files/rust-hello-isar/Cargo.toml
>> @@ -0,0 +1,6 @@
>> +[package]
>> +name = "rust-hello-isar"
>> +version = "0.1.0"
>> +edition = "2024"
>> +
>> +[dependencies]
>> diff --git a/meta-isar/recipes-app/rust-hello-isar/files/rust-hello-isar/src/main.rs b/meta-isar/recipes-app/rust-hello-isar/files/rust-hello-isar/src/main.rs
>> new file mode 100644
>> index 00000000..50469bdf
>> --- /dev/null
>> +++ b/meta-isar/recipes-app/rust-hello-isar/files/rust-hello-isar/src/main.rs
>> @@ -0,0 +1,3 @@
>> +fn main() {
>> +    println!("Hello, isar!");
>> +}
>> diff --git a/meta-isar/recipes-app/rust-hello-isar/rust-hello-isar_0.1.bb b/meta-isar/recipes-app/rust-hello-isar/rust-hello-isar_0.1.bb
>> new file mode 100644
>> index 00000000..2d57b8c8
>> --- /dev/null
>> +++ b/meta-isar/recipes-app/rust-hello-isar/rust-hello-isar_0.1.bb
>> @@ -0,0 +1,22 @@
>> +# Sample application
>> +#
>> +# This software is a part of ISAR.
>> +# Copyright (C) 2026 Siemens AG
>> +
>> +inherit dpkg
>> +
>> +DESCRIPTION = "Hello world example for Rust"
>> +MAINTAINER = "isar-users <isar-users@googlegroups.com>"
>> +
>> +SRC_URI = "file://${PN} \
>> +           file://rules"
>> +
>> +DEBIAN_BUILD_DEPENDS += "dh-cargo"
>> +
>> +S = "${WORKDIR}/${PN}"
>> +
>> +do_prepare_build() {
>> +    deb_debianize
>> +    install  -m 644 ${WORKDIR}/rules ${S}/debian/rules
>> +}
>> +
> 

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Re: [RFC PATCH 2/3] Add example of a rust hello world as isar recipe

['Quirin Gylstorff' via isar-users]

On 3/23/26 1:03 PM, 'Quirin Gylstorff' via isar-users wrote:
> 
> 
> On 3/23/26 12:21 PM, Jan Kiszka wrote:
>> On 23.03.26 11:52, 'Quirin Gylstorff' via isar-users wrote:
>>> From: Quirin Gylstorff <quirin.gylstorff@siemens.com>
>>>
>>
>> Was the recipe generated as well, just augmented afterwards? :)
> 
> No that was written manually. I was thinking about adding a generator 
> but that should be discussed.

With an additional use case the next point of discussion would be not to 
use a bash script and build something more extensible.

Quirin

> 
> Quirin
> 
>>
>> Jan
>>
>>> Signed-off-by: Quirin Gylstorff <quirin.gylstorff@siemens.com>
>>> ---
>>>   .../recipes-app/rust-hello-isar/files/rules   | 27 +++++++++++++++++++
>>>   .../files/rust-hello-isar/Cargo.toml          |  6 +++++
>>>   .../files/rust-hello-isar/src/main.rs         |  3 +++
>>>   .../rust-hello-isar/rust-hello-isar_0.1.bb    | 22 +++++++++++++++
>>>   4 files changed, 58 insertions(+)
>>>   create mode 100755 meta-isar/recipes-app/rust-hello-isar/files/rules
>>>   create mode 100644 meta-isar/recipes-app/rust-hello-isar/files/ 
>>> rust-hello-isar/Cargo.toml
>>>   create mode 100644 meta-isar/recipes-app/rust-hello-isar/files/ 
>>> rust-hello-isar/src/main.rs
>>>   create mode 100644 meta-isar/recipes-app/rust-hello-isar/rust- 
>>> hello-isar_0.1.bb
>>>
>>> diff --git a/meta-isar/recipes-app/rust-hello-isar/files/rules b/ 
>>> meta-isar/recipes-app/rust-hello-isar/files/rules
>>> new file mode 100755
>>> index 00000000..213cc876
>>> --- /dev/null
>>> +++ b/meta-isar/recipes-app/rust-hello-isar/files/rules
>>> @@ -0,0 +1,27 @@
>>> +#!/usr/bin/make -f
>>> +
>>> +export DEB_BUILD_MAINT_OPTIONS = hardening=+all
>>> +DPKG_EXPORT_BUILDFLAGS = 1
>>> +include /usr/share/dpkg/default.mk
>>> +include /usr/share/rustc/architecture.mk
>>> +export DEB_HOST_RUST_TYPE
>>> +export PATH:=/usr/share/cargo/bin:$(PATH)
>>> +export CARGO=/usr/share/cargo/bin/cargo
>>> +export CARGO_HOME=$(CURDIR)/debian/cargo_home
>>> +export CARGO_REGISTRY=$(CURDIR)/debian/cargo_registry
>>> +export DEB_CARGO_CRATE=$(DEB_SOURCE)_$(DEB_VERSION_UPSTREAM)
>>> +
>>> +%:
>>> +    dh $@ --buildsystem=cargo
>>> +
>>> +execute_after_dh_auto_clean:
>>> +    $(CARGO) clean
>>> +    rm -rf $(CARGO_HOME)
>>> +    rm -rf $(CARGO_REGISTRY)
>>> +    rm -f debian/cargo-checksum.json
>>> +
>>> +execute_before_dh_auto_configure:
>>> +    $(CARGO) prepare-debian $(CARGO_REGISTRY) --link-from-system
>>> +    rm -f Cargo.lock
>>> +    touch debian/cargo-checksum.json
>>> +
>>> diff --git a/meta-isar/recipes-app/rust-hello-isar/files/rust-hello- 
>>> isar/Cargo.toml b/meta-isar/recipes-app/rust-hello-isar/files/rust- 
>>> hello-isar/Cargo.toml
>>> new file mode 100644
>>> index 00000000..f761691e
>>> --- /dev/null
>>> +++ b/meta-isar/recipes-app/rust-hello-isar/files/rust-hello-isar/ 
>>> Cargo.toml
>>> @@ -0,0 +1,6 @@
>>> +[package]
>>> +name = "rust-hello-isar"
>>> +version = "0.1.0"
>>> +edition = "2024"
>>> +
>>> +[dependencies]
>>> diff --git a/meta-isar/recipes-app/rust-hello-isar/files/rust-hello- 
>>> isar/src/main.rs b/meta-isar/recipes-app/rust-hello-isar/files/rust- 
>>> hello-isar/src/main.rs
>>> new file mode 100644
>>> index 00000000..50469bdf
>>> --- /dev/null
>>> +++ b/meta-isar/recipes-app/rust-hello-isar/files/rust-hello-isar/ 
>>> src/main.rs
>>> @@ -0,0 +1,3 @@
>>> +fn main() {
>>> +    println!("Hello, isar!");
>>> +}
>>> diff --git a/meta-isar/recipes-app/rust-hello-isar/rust-hello- 
>>> isar_0.1.bb b/meta-isar/recipes-app/rust-hello-isar/rust-hello- 
>>> isar_0.1.bb
>>> new file mode 100644
>>> index 00000000..2d57b8c8
>>> --- /dev/null
>>> +++ b/meta-isar/recipes-app/rust-hello-isar/rust-hello-isar_0.1.bb
>>> @@ -0,0 +1,22 @@
>>> +# Sample application
>>> +#
>>> +# This software is a part of ISAR.
>>> +# Copyright (C) 2026 Siemens AG
>>> +
>>> +inherit dpkg
>>> +
>>> +DESCRIPTION = "Hello world example for Rust"
>>> +MAINTAINER = "isar-users <isar-users@googlegroups.com>"
>>> +
>>> +SRC_URI = "file://${PN} \
>>> +           file://rules"
>>> +
>>> +DEBIAN_BUILD_DEPENDS += "dh-cargo"
>>> +
>>> +S = "${WORKDIR}/${PN}"
>>> +
>>> +do_prepare_build() {
>>> +    deb_debianize
>>> +    install  -m 644 ${WORKDIR}/rules ${S}/debian/rules
>>> +}
>>> +
>>
> 

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Re: [RFC PATCH 2/3] Add example of a rust hello world as isar recipe

['MOESSBAUER, Felix' via isar-users]

On Mon, 2026-03-23 at 11:52 +0100, 'Quirin Gylstorff' via isar-users
wrote:
> From: Quirin Gylstorff <quirin.gylstorff@siemens.com>
> 
> Signed-off-by: Quirin Gylstorff <quirin.gylstorff@siemens.com>
> ---
>  .../recipes-app/rust-hello-isar/files/rules   | 27 +++++++++++++++++++
>  .../files/rust-hello-isar/Cargo.toml          |  6 +++++
>  .../files/rust-hello-isar/src/main.rs         |  3 +++
>  .../rust-hello-isar/rust-hello-isar_0.1.bb    | 22 +++++++++++++++
>  4 files changed, 58 insertions(+)
>  create mode 100755 meta-isar/recipes-app/rust-hello-isar/files/rules
>  create mode 100644 meta-isar/recipes-app/rust-hello-isar/files/rust-hello-isar/Cargo.toml
>  create mode 100644 meta-isar/recipes-app/rust-hello-isar/files/rust-hello-isar/src/main.rs
>  create mode 100644 meta-isar/recipes-app/rust-hello-isar/rust-hello-isar_0.1.bb
> 
> diff --git a/meta-isar/recipes-app/rust-hello-isar/files/rules b/meta-isar/recipes-app/rust-hello-isar/files/rules
> new file mode 100755
> index 00000000..213cc876
> --- /dev/null
> +++ b/meta-isar/recipes-app/rust-hello-isar/files/rules
> @@ -0,0 +1,27 @@
> +#!/usr/bin/make -f
> +
> +export DEB_BUILD_MAINT_OPTIONS = hardening=+all
> +DPKG_EXPORT_BUILDFLAGS = 1
> +include /usr/share/dpkg/default.mk
> +include /usr/share/rustc/architecture.mk
> +export DEB_HOST_RUST_TYPE
> +export PATH:=/usr/share/cargo/bin:$(PATH)
> +export CARGO=/usr/share/cargo/bin/cargo
> +export CARGO_HOME=$(CURDIR)/debian/cargo_home
> +export CARGO_REGISTRY=$(CURDIR)/debian/cargo_registry
> +export DEB_CARGO_CRATE=$(DEB_SOURCE)_$(DEB_VERSION_UPSTREAM)

Please also add fake proxies to ensure nothing is pulled directly from
upstream. Or is this already taken by debcargo?

> +
> +%:
> +	dh $@ --buildsystem=cargo
> +
> +execute_after_dh_auto_clean:
> +	$(CARGO) clean
> +	rm -rf $(CARGO_HOME)
> +	rm -rf $(CARGO_REGISTRY)
> +	rm -f debian/cargo-checksum.json
> +
> +execute_before_dh_auto_configure:
> +	$(CARGO) prepare-debian $(CARGO_REGISTRY) --link-from-system
> +	rm -f Cargo.lock
> +	touch debian/cargo-checksum.json
> +
> diff --git a/meta-isar/recipes-app/rust-hello-isar/files/rust-hello-isar/Cargo.toml b/meta-isar/recipes-app/rust-hello-isar/files/rust-hello-isar/Cargo.toml
> new file mode 100644
> index 00000000..f761691e
> --- /dev/null
> +++ b/meta-isar/recipes-app/rust-hello-isar/files/rust-hello-isar/Cargo.toml
> @@ -0,0 +1,6 @@
> +[package]
> +name = "rust-hello-isar"
> +version = "0.1.0"
> +edition = "2024"
> +
> +[dependencies]
> diff --git a/meta-isar/recipes-app/rust-hello-isar/files/rust-hello-isar/src/main.rs b/meta-isar/recipes-app/rust-hello-isar/files/rust-hello-isar/src/main.rs
> new file mode 100644
> index 00000000..50469bdf
> --- /dev/null
> +++ b/meta-isar/recipes-app/rust-hello-isar/files/rust-hello-isar/src/main.rs
> @@ -0,0 +1,3 @@
> +fn main() {
> +    println!("Hello, isar!");
> +}
> diff --git a/meta-isar/recipes-app/rust-hello-isar/rust-hello-isar_0.1.bb b/meta-isar/recipes-app/rust-hello-isar/rust-hello-isar_0.1.bb
> new file mode 100644
> index 00000000..2d57b8c8
> --- /dev/null
> +++ b/meta-isar/recipes-app/rust-hello-isar/rust-hello-isar_0.1.bb
> @@ -0,0 +1,22 @@
> +# Sample application
> +#
> +# This software is a part of ISAR.
> +# Copyright (C) 2026 Siemens AG
> +
> +inherit dpkg
> +
> +DESCRIPTION = "Hello world example for Rust"
> +MAINTAINER = "isar-users <isar-users@googlegroups.com>"
> +
> +SRC_URI = "file://${PN} \

You probably want ${BPN}

> +           file://rules"
> +
> +DEBIAN_BUILD_DEPENDS += "dh-cargo"
> +
> +S = "${WORKDIR}/${PN}"

Same here.

Felix

> +
> +do_prepare_build() {
> +    deb_debianize
> +    install  -m 644 ${WORKDIR}/rules ${S}/debian/rules
> +}
> +
> --
> 2.53.0
> 
> --
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-- 
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Re: [RFC PATCH 2/3] Add example of a rust hello world as isar recipe

['Quirin Gylstorff' via isar-users]

On 3/24/26 10:17 AM, Moessbauer, Felix (FT RPD CED OES-DE) wrote:
> On Mon, 2026-03-23 at 11:52 +0100, 'Quirin Gylstorff' via isar-users
> wrote:
>> From: Quirin Gylstorff <quirin.gylstorff@siemens.com>
>>
>> Signed-off-by: Quirin Gylstorff <quirin.gylstorff@siemens.com>
>> ---
>>   .../recipes-app/rust-hello-isar/files/rules   | 27 +++++++++++++++++++
>>   .../files/rust-hello-isar/Cargo.toml          |  6 +++++
>>   .../files/rust-hello-isar/src/main.rs         |  3 +++
>>   .../rust-hello-isar/rust-hello-isar_0.1.bb    | 22 +++++++++++++++
>>   4 files changed, 58 insertions(+)
>>   create mode 100755 meta-isar/recipes-app/rust-hello-isar/files/rules
>>   create mode 100644 meta-isar/recipes-app/rust-hello-isar/files/rust-hello-isar/Cargo.toml
>>   create mode 100644 meta-isar/recipes-app/rust-hello-isar/files/rust-hello-isar/src/main.rs
>>   create mode 100644 meta-isar/recipes-app/rust-hello-isar/rust-hello-isar_0.1.bb
>>
>> diff --git a/meta-isar/recipes-app/rust-hello-isar/files/rules b/meta-isar/recipes-app/rust-hello-isar/files/rules
>> new file mode 100755
>> index 00000000..213cc876
>> --- /dev/null
>> +++ b/meta-isar/recipes-app/rust-hello-isar/files/rules
>> @@ -0,0 +1,27 @@
>> +#!/usr/bin/make -f
>> +
>> +export DEB_BUILD_MAINT_OPTIONS = hardening=+all
>> +DPKG_EXPORT_BUILDFLAGS = 1
>> +include /usr/share/dpkg/default.mk
>> +include /usr/share/rustc/architecture.mk
>> +export DEB_HOST_RUST_TYPE
>> +export PATH:=/usr/share/cargo/bin:$(PATH)
>> +export CARGO=/usr/share/cargo/bin/cargo
>> +export CARGO_HOME=$(CURDIR)/debian/cargo_home
>> +export CARGO_REGISTRY=$(CURDIR)/debian/cargo_registry
>> +export DEB_CARGO_CRATE=$(DEB_SOURCE)_$(DEB_VERSION_UPSTREAM)
> 
> Please also add fake proxies to ensure nothing is pulled directly from
> upstream. Or is this already taken by debcargo?

The build uses a wrapper around 
cargo(https://salsa.debian.org/rust-team/rust/-/blob/debian/sid/debian/bin/cargo?ref_type=heads) 
which replaces crates.io with the local registry. In my opinion the 
Proxy should not be necessary.



> 
>> +
>> +%:
>> +	dh $@ --buildsystem=cargo
>> +
>> +execute_after_dh_auto_clean:
>> +	$(CARGO) clean
>> +	rm -rf $(CARGO_HOME)
>> +	rm -rf $(CARGO_REGISTRY)
>> +	rm -f debian/cargo-checksum.json
>> +
>> +execute_before_dh_auto_configure:
>> +	$(CARGO) prepare-debian $(CARGO_REGISTRY) --link-from-system
>> +	rm -f Cargo.lock
>> +	touch debian/cargo-checksum.json
>> +
>> diff --git a/meta-isar/recipes-app/rust-hello-isar/files/rust-hello-isar/Cargo.toml b/meta-isar/recipes-app/rust-hello-isar/files/rust-hello-isar/Cargo.toml
>> new file mode 100644
>> index 00000000..f761691e
>> --- /dev/null
>> +++ b/meta-isar/recipes-app/rust-hello-isar/files/rust-hello-isar/Cargo.toml
>> @@ -0,0 +1,6 @@
>> +[package]
>> +name = "rust-hello-isar"
>> +version = "0.1.0"
>> +edition = "2024"
>> +
>> +[dependencies]
>> diff --git a/meta-isar/recipes-app/rust-hello-isar/files/rust-hello-isar/src/main.rs b/meta-isar/recipes-app/rust-hello-isar/files/rust-hello-isar/src/main.rs
>> new file mode 100644
>> index 00000000..50469bdf
>> --- /dev/null
>> +++ b/meta-isar/recipes-app/rust-hello-isar/files/rust-hello-isar/src/main.rs
>> @@ -0,0 +1,3 @@
>> +fn main() {
>> +    println!("Hello, isar!");
>> +}
>> diff --git a/meta-isar/recipes-app/rust-hello-isar/rust-hello-isar_0.1.bb b/meta-isar/recipes-app/rust-hello-isar/rust-hello-isar_0.1.bb
>> new file mode 100644
>> index 00000000..2d57b8c8
>> --- /dev/null
>> +++ b/meta-isar/recipes-app/rust-hello-isar/rust-hello-isar_0.1.bb
>> @@ -0,0 +1,22 @@
>> +# Sample application
>> +#
>> +# This software is a part of ISAR.
>> +# Copyright (C) 2026 Siemens AG
>> +
>> +inherit dpkg
>> +
>> +DESCRIPTION = "Hello world example for Rust"
>> +MAINTAINER = "isar-users <isar-users@googlegroups.com>"
>> +
>> +SRC_URI = "file://${PN} \
> 
> You probably want ${BPN}
> 
Good catch will fix in the next version.

Quirin
>> +           file://rules"
>> +
>> +DEBIAN_BUILD_DEPENDS += "dh-cargo"
>> +
>> +S = "${WORKDIR}/${PN}"
> 
> Same here.
> 
> Felix
> 
>> +
>> +do_prepare_build() {
>> +    deb_debianize
>> +    install  -m 644 ${WORKDIR}/rules ${S}/debian/rules
>> +}
>> +
>> --
>> 2.53.0
>>
>> --
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