build: converting to Rust's Alpine image (#75)

Author: DeveloperC286

.github/workflows/continuous-integration.yml

@@ -64,6 +64,18 @@ jobs:
           fetch-depth: 0
       - name: Unit test.
         run: earthly --ci +unit-test
+  static-binary-test:
+    name: Static Binary Test
+    runs-on: ubuntu-latest
+    steps:
+      - name: Download Earthly.
+        uses: earthly/actions-setup@v1
+        with:
+          version: v0.8.15
+      - name: Checkout code.
+        uses: actions/checkout@v4
+      - name: Static binary test.
+        run: earthly --ci +static-binary-test
   end-to-end-test:
     name: End to End Test
     runs-on: ubuntu-latest

Earthfile

@@ -12,21 +12,17 @@ COPY_METADATA:
     COPY --dir ".git/" "./"
 
 
-alpine-base:
-    FROM alpine:3.20.3@sha256:1e42bbe2508154c9126d48c2b8a75420c3544343bf86fd041fb7527e017a4b4a
+rust-base:
+    FROM rust:1.78.0-alpine3.20
     # renovate: datasource=repology depName=alpine_3_20/bash versioning=loose
     ENV BASH_VERSION="5.2.26-r0"
-    RUN apk add --no-cache bash=$BASH_VERSION
+    # renovate: datasource=repology depName=alpine_3_20/musl-dev versioning=loose
+    ENV MUSL_VERSION="1.2.5-r0"
+    RUN apk add --no-cache bash=$BASH_VERSION musl-dev=$MUSL_VERSION
+    RUN rustup component add rustfmt clippy
     WORKDIR "/conventional_commits_next_version"
 
 
-rust-base:
-    FROM +alpine-base
-    # renovate: datasource=repology depName=alpine_3_20/rust versioning=loose
-    ENV RUST_VERSION="1.78.0-r0"
-    RUN apk add --no-cache cargo=$RUST_VERSION
-
-
 check-clean-git-history:
     FROM +rust-base
     # renovate: datasource=github-releases depName=DeveloperC286/clean_git_history
@@ -54,19 +50,18 @@ COPY_SOURCECODE:
     COPY --dir "Cargo.toml" "src/" "end-to-end-tests/" "./"
 
 
-rust-formatting-base:
+sourcecode-base:
     FROM +rust-base
-    RUN apk add --no-cache rustfmt=$RUST_VERSION
     DO +COPY_SOURCECODE
 
 
 check-rust-formatting:
-    FROM +rust-formatting-base
+    FROM +sourcecode-base
     RUN ./ci/check-rust-formatting.sh
 
 
 python-base:
-    FROM +alpine-base
+    FROM +rust-base
     # renovate: datasource=repology depName=alpine_3_20/python3 versioning=loose
     ENV PYTHON_VERSION="3.12.8-r1"
     # renovate: datasource=repology depName=alpine_3_20/git versioning=loose
@@ -127,7 +122,7 @@ check-formatting:
 
 
 fix-rust-formatting:
-    FROM +rust-formatting-base
+    FROM +sourcecode-base
     RUN ./ci/fix-rust-formatting.sh
     SAVE ARTIFACT "src/" AS LOCAL "./"
 
@@ -158,14 +153,12 @@ fix-formatting:
 
 
 check-rust-linting:
-    FROM +rust-base
-    RUN apk add --no-cache rust-clippy=$RUST_VERSION
-    DO +COPY_SOURCECODE
+    FROM +sourcecode-base
     RUN ./ci/check-rust-linting.sh
 
 
 check-shell-linting:
-    FROM +alpine-base
+    FROM +rust-base
     # renovate: datasource=repology depName=alpine_3_20/shellcheck versioning=loose
     ENV SHELLCHECK_VERSION="0.10.0-r1"
     RUN apk add --no-cache shellcheck=$SHELLCHECK_VERSION
@@ -189,19 +182,23 @@ check-linting:
 
 
 compile:
-    FROM +rust-base
-    DO +COPY_SOURCECODE
+    FROM +sourcecode-base
     RUN ./ci/compile.sh
     SAVE ARTIFACT "target/" AS LOCAL "./"
     SAVE ARTIFACT "Cargo.lock" AS LOCAL "./"
 
 
 unit-test:
-    FROM +rust-base
-    DO +COPY_SOURCECODE
+    FROM +sourcecode-base
     RUN ./ci/unit-test.sh
 
 
+static-binary-test:
+    FROM ubuntu:24.04
+    COPY "+compile/target/" "target/"
+    RUN ./target/debug/conventional_commits_next_version --help
+
+
 end-to-end-test:
     FROM +python-base
     RUN pip3 install -r "end-to-end-tests/requirements.txt" --break-system-packages
@@ -210,7 +207,7 @@ end-to-end-test:
 
 
 release-artifacts:
-    FROM +alpine-base
+    FROM +rust-base
     # renovate: datasource=repology depName=alpine_3_20/github-cli versioning=loose
     ENV GITHUB_CLI_VERSION="2.47.0-r4"
     RUN apk add --no-cache github-cli=$GITHUB_CLI_VERSION
@@ -221,7 +218,6 @@ release-artifacts:
 
 
 publish:
-    FROM +rust-base
+    FROM +sourcecode-base
     COPY "README.md" "./"
-    DO +COPY_SOURCECODE
     RUN --secret CARGO_REGISTRY_TOKEN ./ci/publish.sh