Generated latest for each configuration

There needs to be a "latest" for each configuration. "latest" will need to be configurable in the future to handle glibc case with some "old-af" version

Author: reutermj

repo_gen/generate_repo.py

@@ -68,6 +68,39 @@ def create_version_configs(rows, dir):
     for row in rows:
         name = row["name"]
         settings = ""
+        if "configurations" in row:
+            configs = []
+            for config, info in row["configurations"].items():
+                config_name = f"{name}-{config}-latest"
+                configs.append(config_name)
+                if info["is-default"]:
+                    settings += config_setting_tpl.format(
+                        name=config_name,
+                        value=f"{name}",
+                        config=f"use_{dir}",
+                    )
+                else:
+                    settings += config_setting_tpl.format(
+                        name=config_name,
+                        value=f"{name}-{config}",
+                        config=f"use_{dir}",
+                    )
+
+            version_tags = ""
+            for config in configs:
+                version_tags += f"        \":{config}\",\n"
+            
+            settings += config_settings_group_tpl.format(
+                name=f"{name}-latest",
+                versions=version_tags.strip()
+            )
+        else:
+            settings += config_setting_tpl.format(
+                name=f"{name}-latest",
+                value=f"{name}",
+                config=f"use_{dir}",
+            )
+
         for version, _ in row["versions"].items():
             if "configurations" in row:
                 configs = []
@@ -95,7 +128,6 @@ def create_version_configs(rows, dir):
                     name=f"{name}-{version}",
                     versions=version_tags.strip()
                 )
-                    
             else:
                 settings += config_setting_tpl.format(
                     name=f"{name}-{version}",
@@ -218,7 +250,6 @@ def generate_build_files(dir, actions):
 
     configurations = get_configurations(dir)
     name_to_configs = create_version_configs(configurations, dir)
-    
     name_to_aliases = create_version_aliases(configurations, dir, actions)
     name_to_group = create_config_settings_group(configurations)
 

repo_gen/runtimes/BUILD.tpl

@@ -50,11 +50,4 @@ cc_args(
 )
 {version_aliases}
 {config_setting_group}
-config_setting(
-    name = "{name}-latest",
-    flag_values = {{
-        "//:use_runtimes": "{name}",
-    }},
-)
-
 {version_configs}

repo_gen/toolchain/BUILD.tpl

@@ -3,11 +3,4 @@ load("@bazel_skylib//lib:selects.bzl", "selects")
 package(default_visibility = ["//toolchain:__subpackages__"])
 {version_aliases}
 {config_setting_group}
-config_setting(
-    name = "{name}-latest",
-    flag_values = {{
-        "//:use_toolchain": "{name}",
-    }},
-)
-
 {version_configs}

runtimes/musl/BUILD

@@ -74,12 +74,24 @@ selects.config_setting_group(
 )
 
 config_setting(
-    name = "musl-latest",
+    name = "musl-shared-latest",
     flag_values = {
         "//:use_runtimes": "musl",
     },
 )
-
+config_setting(
+    name = "musl-static-latest",
+    flag_values = {
+        "//:use_runtimes": "musl-static",
+    },
+)
+selects.config_setting_group(
+    name = "musl-latest",
+    match_any = [
+        ":musl-shared-latest",
+        ":musl-static-latest",
+    ],
+)
 config_setting(
     name = "musl-shared-1.2.5",
     flag_values = {

toolchain/llvm/BUILD

@@ -80,7 +80,6 @@ config_setting(
         "//:use_toolchain": "llvm",
     },
 )
-
 config_setting(
     name = "llvm-19.1.7",
     flag_values = {