Add a rust role.

ansible/roles/emacs/meta/main.yaml

@@ -1,5 +1,5 @@
 dependencies:
   - users
   - fonts
-  # - rust
+  - rust
   # - plainmacs

ansible/roles/rust/tasks/common.yaml

@@ -0,0 +1,14 @@
+- import_tasks: tasks/freebsd.yaml
+  when: 'os_flavor == "freebsd"'
+
+- import_tasks: tasks/linux.yaml
+  when: 'os_flavor == "linux"'
+
+- include_tasks:
+    file: tasks/peruser.yaml
+    apply:
+      become: yes
+      become_user: "{{ initialize_user }}"
+  loop: "{{ users | dict2items | community.general.json_query('[?value.initialize==`true`].key') }}"
+  loop_control:
+    loop_var: initialize_user

ansible/roles/rust/tasks/freebsd.yaml

@@ -0,0 +1,6 @@
+- name: Install packages
+  package:
+    name:
+      - rust-nightly
+      - rust-analyzer
+    state: present

ansible/roles/rust/tasks/linux.yaml

@@ -0,0 +1,7 @@
+- name: Install packages
+  package:
+    name:
+      - rustup
+      - lldb # for lldb-vscode
+      - musl # for building static binaries
+    state: present

ansible/roles/rust/tasks/main.yaml

@@ -0,0 +1,2 @@
+- import_tasks: tasks/common.yaml
+  # when: foo is defined

ansible/roles/rust/tasks/peruser.yaml

@@ -0,0 +1,29 @@
+- include_role:
+    name: per_user
+
+# - name: Create directories
+#   file:
+#     name: "{{ account_homedir.stdout }}/{{ item }}"
+#     state: directory
+#     mode: 0700
+#     owner: "{{ account_name.stdout }}"
+#     group: "{{ group_name.stdout }}"
+#   loop:
+#     - ".config/foo"
+
+# - name: Copy files
+#   copy:
+#     src: "files/{{ item.src }}"
+#     dest: "{{ account_homedir.stdout }}/{{ item.dest }}"
+#     mode: 0600
+#     owner: "{{ account_name.stdout }}"
+#     group: "{{ group_name.stdout }}"
+#   loop:
+#     - src: foo.conf
+#       dest: .config/foo/foo.conf
+
+- import_tasks: tasks/peruser_freebsd.yaml
+  when: 'os_flavor == "freebsd"'
+
+- import_tasks: tasks/peruser_linux.yaml
+  when: 'os_flavor == "linux"'

ansible/roles/rust/tasks/peruser_linux.yaml

@@ -0,0 +1,44 @@
+- name: Set nightly as the default toolchain
+  command: "rustup default nightly-{{ rust_date }}"
+  args:
+    creates: "{{ account_homedir.stdout }}/.rustup/toolchains/nightly-{{ rust_date }}-x86_64-unknown-linux-gnu"
+
+- name: Install the musl target
+  command: rustup target add x86_64-unknown-linux-musl
+  args:
+    creates: "{{ account_homedir.stdout }}/.rustup/toolchains/nightly-{{ rust_date }}-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-musl"
+
+# Needed by rust-analyzer (rust-analyzer will attempt to install via rustup on its own, but this will install it manually).
+- name: Install the nightly rust-src
+  command: rustup component add rust-src
+  args:
+    creates: "{{ account_homedir.stdout }}/.rustup/toolchains/nightly-{{ rust_date }}-x86_64-unknown-linux-gnu/lib/rustlib/manifest-rust-src"
+
+- name: Install the nightly rust-analyzer
+  command: rustup component add rust-analyzer
+  args:
+    creates: "{{ account_homedir.stdout }}/.rustup/toolchains/nightly-{{ rust_date }}-x86_64-unknown-linux-gnu/bin/rust-analyzer"
+
+- name: Create directories
+  file:
+    name: "{{ account_homedir.stdout }}/{{ item }}"
+    state: directory
+    mode: 0755
+    owner: "{{ account_name.stdout }}"
+    group: "{{ group_name.stdout }}"
+  loop:
+    - .cargo
+
+- name: Copy files
+  no_log: true
+  copy:
+    src: "files/{{ item.src }}"
+    dest: "{{ account_homedir.stdout }}/{{ item.dest }}"
+    mode: 0600
+    owner: "{{ account_name.stdout }}"
+    group: "{{ group_name.stdout }}"
+  loop:
+    - src: cargo_credentials.toml
+      dest: .cargo/credentials
+    - src: cargo_config.toml
+      dest: .cargo/config