wip

tools/resolve_requirements.py

@@ -4,14 +4,25 @@ import re
 from typing import Tuple, Optional
 from packaging import version, specifiers
 import re
+import traceback
+
+
+import re
+from typing import Tuple, Optional
 
 
 def parse_pip_spec(spec: str) -> Tuple[str, Optional[str], Optional[str]]:
-    match = re.match(r'([^=<>!~\[\]]+)(\[.*\])?(.*)', spec)
+    match = re.match(r'([A-Za-z0-9_-]+)(\[[^\]]+\])?(.*)', spec)
     if match:
         package_name = match.group(1).strip()
-        extras = match.group(2).strip()[1:-1] if match.group(2) else None
-        version_spec = match.group(3).strip() or None
+        extras = match.group(2)[1:-1] if match.group(2) else None
+
+        version_spec = None
+        if match.group(3):
+            version_match = re.match(r'\(?([^\)]+)\)?', match.group(3).strip())
+            if version_match:
+                version_spec = version_match.group(1).strip()
+
         return package_name, extras, version_spec
     else:
         raise ValueError(f"Invalid package spec: {spec}")
@@ -24,14 +35,14 @@ def fetch_package_versions(package_name):
         response.raise_for_status()
         data = response.json()
         versions = data["releases"].keys()
-        print(f"Available versions of {package_name}:")
+        print(f"Available versions of '{package_name}':")
         return list(versions)
     except requests.RequestException as e:
         print(f"Error fetching package versions: {e}")
         return []
 
 
-def fetch_required_dist(package_name, ver, extras):
+def fetch_required_dist(package_name, ver):
     url = f"https://pypi.org/pypi/{package_name}/{ver}/json"
     try:
         response = requests.get(url)
@@ -47,26 +58,23 @@ def fetch_required_dist(package_name, ver, extras):
         dependencies = []
         for dist in requires_dist:
             dist = dist.split(";")
-            match = re.match(r'([^=<>!~]+)(.*)', dist[0].strip())
 
-            pkg_name = None
-            ver_spec = None
             dist_extra = None
+            if len(dist) > 1:
+                match = re.match(r'extra\s*==\s*"([^"]*)"', dist[1].strip())
+                if match:
+                    dist_extra = match.group(1).strip()
+
+            match = re.match(r'([^=<>!~]+)(.*)', dist[0].strip())
 
             if match:
                 pkg_name = match.group(1).strip()
                 ver_spec = match.group(2).strip() or None
 
-            if len(dist) > 1:
-                match = re.match(r'extra\s*==\s*"([^"]*)"', dist[1].strip())
-                if match:
-                    dist_extra = match.group(1).strip()
+                if ver_spec is not None and ver_spec.endswith(')'):
+                    pass
 
-            if pkg_name is not None:
-                if dist_extra is None:
-                    dependencies.append((pkg_name, ver_spec))
-                elif dist_extra == extras:
-                    dependencies.append((pkg_name, ver_spec))
+                dependencies.append((pkg_name, dist_extra, ver_spec))
 
         # print(f"Processed dependencies for {package_name} version {ver}: {dependencies}")
         return dependencies
@@ -76,27 +84,79 @@ def fetch_required_dist(package_name, ver, extras):
 
 
 def filter_versions(versions, spec):
+    try:
         specifier = specifiers.SpecifierSet(spec) if spec else specifiers.SpecifierSet()
-    return [v for v in versions if v in specifier]
 
+        res = []
+        for v in versions:
+            match = re.match(r'^([0-9.]+[0-9])', v)
+            if match:
+                if match.group(1) in specifier:
+                    res.append(v)
 
-if __name__ == "__main__":
-    if len(sys.argv) < 2:
-        print("Usage: python script.py <package_name>")
-        sys.exit(1)
+        return res
+    except Exception as e:
+        print(f"ERROR: {e}")
+        traceback.print_exc()
 
-    pkg_name, extras, version_spec = parse_pip_spec(sys.argv[1])
+
+def filter_extras(required_dist, extras):
+    return [x for x in required_dist if x[1] is None or x[1] == extras]
+
+
+resolved = {}
+
+
+def resolve_pip_spec(pkg_name, extras, ver):
+    global resolved
+    required_dist = fetch_required_dist(pkg_name, ver)
+    resolved[(pkg_name, extras, ver)] = required_dist
+    return filter_extras(required_dist, extras)
+
+
+def best_match(pkg_name, version_spec):
+    global resolved
     candidate_versions = fetch_package_versions(pkg_name)
 
     if version_spec:
         candidate_versions = filter_versions(candidate_versions, version_spec)
 
     if candidate_versions:
-        best_version = max(candidate_versions, key=version.parse)
-        print(f"Best matching version: {best_version}")
-        required_dist = fetch_required_dist(pkg_name, best_version, extras)
-        print(f"Required_dist: {required_dist}")
+        return max(candidate_versions, key=version.parse)
     else:
         print("No matching versions found.")
+        return None
+
+
+def resolve_recursively(items):
+    worklist = items
+
+    while worklist:
+        pkg_name, extras, version_spec = worklist[0]
+        worklist = worklist[1:]
+        ver = best_match(pkg_name, version_spec)
 
+        if (pkg_name, extras, ver) in resolved:
+            continue
 
+        if ver is not None:
+            nexts = resolve_pip_spec(pkg_name, extras, ver)
+            worklist += nexts
+
+
+def main():
+    global resolved
+    if len(sys.argv) < 2:
+        print("Usage: python script.py <package_name>")
+        sys.exit(1)
+
+    pkg_name, extras, version_spec = parse_pip_spec(sys.argv[1])
+    ver = best_match(pkg_name, version_spec)
+    required_dist = resolve_pip_spec(pkg_name, extras, ver)
+    resolve_recursively(required_dist)
+
+    print(f"Requirements: {resolved}")
+
+
+if __name__ == "__main__":
+    main()