First experimental code for installing from a centralized database; deadended with the emergence of easy_install, but I want to get it in the repository before deleting it.

1 files changed, 53 insertions, 0 deletions

diff --git a/paste/packaging/finder.py b/paste/packaging/finder.py
new file mode 100644
index 0000000..1aea428
--- /dev/null
+++ b/paste/packaging/finder.py
@@ -0,0 +1,53 @@
+import sys
+import urllib2
+import rfc822
+import install
+
+paste_pkg_url = 'http://pythonpaste.org/packages/info.txt'
+pkg_install_url= 'http://pythonpaste.org/packages'
+
+class PackageError(Exception):
+    pass
+
+def get_package_info(metadata_url=None):
+    url = url or paste_pkg_url
+    records = {}
+    f = urllib2.urlopen(url)
+    while 1:
+        msg = rfc822.Message(f)
+        if not msg:
+            break
+        records.setdefault(msg['Name'], []).append(msg)
+    return records
+
+def install_package(package_name, dest_dir, version=None,
+                    metadata_url=None):
+    all_info = get_package_info(metadata_url=metadata_url)
+    if package_name not in all_info:
+        raise PackageError(
+            "Package %s not found" % package_name)
+    available = all_info[package_name]
+    package_info = None
+    for info in available:
+        if version is None:
+            if (not package_info
+                or info['Version'] > package_info['Version']):
+                package_info = info
+        elif version == info['Version']:
+            package_info = info
+            break
+    if package_info is None:
+        raise PackageError(
+            "Version %s of Package %s not found"
+            % (version, package_name))
+    python_version = 'py%s.%s' % (
+        sys.version_info[0], sys.version_info[1])
+    package_url = (
+        pkg_install_url + '/' + package_name + '-'
+        + package_info['Version'] + '-' + python_version + '.egg')
+    install.install_egg_from_url(package_url, dest_dir)
+
+if __name__ == '__main__':
+    print get_package_info()
+    
+