miniforge3: add new versions with mamba installation (#43995)

* miniforge3: add new version with mamba installation
* fix styling
* update maintainers
* Fix variant directive ordering

var/spack/repos/builtin/packages/miniforge3/package.py

@@ -3,50 +3,63 @@
 #
 # SPDX-License-Identifier: (Apache-2.0 OR MIT)
 
+import platform
+from os.path import split
+
 from spack.package import *
+from spack.util.environment import EnvironmentModifications
+
+_versions = {
+    "24.3.0-0": {
+        "Linux-x86_64": ("23367676b610de826f50f7ddc91139a816d4b59bd4c69cc9b6082d9b2e7fe8a3",)
+    },
+    "24.1.2-0": {
+        "Linux-x86_64": ("dbadb808edf4da00af35d888d3eeebbfdce71972b60bf4b16dbacaee2ab57f28",)
+    },
+    "4.8.3-4": {
+        "Linux-x86_64": ("24951262a126582f5f2e1cf82c9cd0fa20e936ef3309fdb8397175f29e647646",),
+        "Linux-aarch64": ("52a8dde14ecfb633800a2de26543a78315058e30f5883701da1ad2f2d5ba9ed8",),
+    },
+    "4.8.3-2": {
+        "Linux-x86_64": ("c8e5b894fe91ce0f86e61065d2247346af107f8d53de0ad89ec848701c4ec1f9",),
+        "Linux-aarch64": ("bfefc0ede6354568978b4198607edd7f17c2f50ca4c6a47e9f22f8c257c8230a",),
+        "MacOSX-x86_64": ("25ca082ab00a776db356f9bbc660edf6d24659e2aec1cbec5fd4ce992d4d193d"),
+    },
+}
 
 
 class Miniforge3(Package):
-    """Miniforge3 is a minimal installer for conda specific to conda-forge."""
+    """Miniforge3 is a minimal installer for conda and mamba specific to conda-forge."""
 
     homepage = "https://github.com/conda-forge/miniforge"
-    url = "https://github.com/conda-forge/miniforge/releases/download/4.8.3-2/Miniforge3-4.8.3-2-Linux-x86_64.sh"
 
-    version(
-        "4.8.3-4-Linux-x86_64",
-        url="https://github.com/conda-forge/miniforge/releases/download/4.8.3-4/Miniforge3-4.8.3-4-Linux-x86_64.sh",
-        sha256="24951262a126582f5f2e1cf82c9cd0fa20e936ef3309fdb8397175f29e647646",
-        expand=False,
-    )
-    version(
-        "4.8.3-4-Linux-aarch64",
-        url="https://github.com/conda-forge/miniforge/releases/download/4.8.3-4/Miniforge3-4.8.3-4-Linux-aarch64.sh",
-        sha256="52a8dde14ecfb633800a2de26543a78315058e30f5883701da1ad2f2d5ba9ed8",
-        expand=False,
-    )
-    version(
-        "4.8.3-2-Linux-x86_64",
-        url="https://github.com/conda-forge/miniforge/releases/download/4.8.3-2/Miniforge3-4.8.3-2-Linux-x86_64.sh",
-        sha256="c8e5b894fe91ce0f86e61065d2247346af107f8d53de0ad89ec848701c4ec1f9",
-        expand=False,
-    )
-    version(
-        "4.8.3-2-Linux-aarch64",
-        url="https://github.com/conda-forge/miniforge/releases/download/4.8.3-2/Miniforge3-4.8.3-2-Linux-aarch64.sh",
-        sha256="bfefc0ede6354568978b4198607edd7f17c2f50ca4c6a47e9f22f8c257c8230a",
-        expand=False,
-    )
-    version(
-        "4.8.3-2-MacOSX-x86_64",
-        url="https://github.com/conda-forge/miniforge/releases/download/4.8.3-2/Miniforge3-4.8.3-2-MacOSX-x86_64.sh",
-        sha256="25ca082ab00a776db356f9bbc660edf6d24659e2aec1cbec5fd4ce992d4d193d",
-        expand=False,
-    )
+    maintainers("ChristopherChristofi")
+
+    license("BSD-3-Clause")
+
+    for ver, packages in _versions.items():
+        key = f"{platform.system()}-{platform.machine()}"
+        pkg = packages.get(key)
+        if pkg:
+            version(ver, sha256=pkg[0], expand=False)
+
+    variant("mamba", default=True, description="Enable mamba support.")
+
+    conflicts("+mamba", when="@:22.3.1-0")
+
+    def url_for_version(self, version):
+        script = f"Miniforge3-{version}-{platform.system()}-{platform.machine()}.sh"
+        return f"https://github.com/conda-forge/miniforge/releases/download/{version}/{script}"
 
     def install(self, spec, prefix):
-        mkdirp(prefix)
-        pkgname = "Miniforge3-{0}.sh".format(self.version)
-        chmod = which("chmod")
-        chmod("+x", pkgname)
-        sh = which("sh")
-        sh("./{0}".format(pkgname), "-b", "-f", "-s", "-p", prefix)
+        dir, script = split(self.stage.archive_file)
+        bash = which("bash")
+        bash(script, "-b", "-f", "-p", self.prefix)
+
+    def setup_run_environment(self, env):
+        filename = self.prefix.etc.join("profile.d").join("conda.sh")
+        env.extend(EnvironmentModifications.from_sourcing_file(filename))
+
+        if "+mamba" in self.spec:
+            filename = self.prefix.etc.join("profile.d").join("mamba.sh")
+            env.extend(EnvironmentModifications.from_sourcing_file(filename))