Add cross platform build script

tasks.py

@@ -1,5 +1,46 @@
+from concurrent.futures import ThreadPoolExecutor
+from pathlib import Path
+
 from invoke import Context, task
 
+TARGETS = [
+    "aix/ppc64",
+    "darwin/amd64",
+    "dragonfly/amd64",
+    "freebsd/386",
+    "freebsd/amd64",
+    "freebsd/arm",
+    "freebsd/arm64",
+    "illumos/amd64",
+    "linux/386",
+    "linux/amd64",
+    "linux/arm",
+    "linux/arm64",
+    "linux/ppc64",
+    "linux/ppc64le",
+    "linux/mips",
+    "linux/mipsle",
+    "linux/mips64",
+    "linux/mips64le",
+    "linux/riscv64",
+    "linux/s390x",
+    "netbsd/386",
+    "netbsd/amd64",
+    "netbsd/arm",
+    "netbsd/arm64",
+    "openbsd/386",
+    "openbsd/amd64",
+    "openbsd/arm",
+    "openbsd/arm64",
+    "plan9/386",
+    "plan9/amd64",
+    "plan9/arm",
+    "solaris/amd64",
+    "windows/386",
+    "windows/amd64",
+    "windows/arm",
+]
+
 
 @task
 def tag(context, tag):
@@ -7,3 +48,16 @@ def tag(context, tag):
     context: Context
     context.run(f"git tag -a {tag} -m '{tag}'")
     context.run("git push --follow-tags")
+
+
+@task
+def build(context):
+    """Cross-platform build"""
+    with ThreadPoolExecutor() as pool:
+        for target in TARGETS:
+            os, arch = target.split("/")
+            binary_name = f"insee-{os}-{arch}"
+            if os == "windows":
+                binary_name += ".exe"
+            binary_path = Path(__file__).resolve(strict=True).parent / "dist" / binary_name
+            pool.submit(context.run, f"go build -o {binary_path}", env={"GOOS": os, "GOARCH": arch}, echo=True)