working on alacritty source install

- adding cargo build helper

tasks/helpers/cargo_build.yml

@@ -0,0 +1,39 @@
+# vim: set filetype=yaml.ansible :
+---
+- name: Cargo source install helper
+  when:
+    - cargo_install_type == 'source'
+  block:
+    - name: Set build variables
+      ansible.builtin.set_fact:
+        git_path: "{{ d_tempdir.path }}/{{ name }}"
+        git_repo: "{{ repo }}"
+        git_depth: "{{ depth | default(1) }}"
+        git_recursive: "{{ recursive | default(true) }}"
+        git_version: "{{ version | default(omit) }}"
+
+    - name: Fetch git repo
+      ansible.builtin.include_tasks:
+        file: helpers/git.yml
+
+    - name: Build cargo release
+      ansible.builtin.command:
+        creates: "{{ bin_output }}"
+        chdir: "{{ git_path }}"
+        argv: "{{ [cargo, build] + cargo_build_flags }}"
+
+    - name: Install cargo release
+      block:
+        - name: Install binary
+          when:
+            - bin_name is defined
+            - bin_output is defined
+          become: true
+          ansible.builtin.copy:
+            backup: false
+            dest: "{{ install_prefix }}/bin/{{ bin_name }}"
+            owner: root
+            group: root
+            mode: "0755"
+            remote_src: true
+            src: "{{ git_path }}/{{ bin_output }}"