X-Git-Url: http://git.scottworley.com/pinch/blobdiff_plain/0a4ff8dde934f9921371da9600e473dd090a7425..55ae4ff693dee4323804eae4232141fb2e524c7e:/pinch.py?ds=inline

diff --git a/pinch.py b/pinch.py
index f5fbb48..4c2341f 100644
--- a/pinch.py
+++ b/pinch.py
@@ -22,9 +22,11 @@ from typing import (
     Dict,
     Iterable,
     List,
+    Mapping,
     NamedTuple,
     NewType,
     Tuple,
+    Type,
     Union,
 )
 
@@ -146,7 +148,7 @@ class GitSearchPath(TarrableSearchPath):
 
     def fetch(self, v: Verification, section: str,
               conf: configparser.SectionProxy) -> str:
-        if 'git_repo' not in conf or 'release_name' not in conf:
+        if 'git_revision' not in conf or 'release_name' not in conf:
             raise Exception(
                 'Cannot update unpinned channel "%s" (Run "pin" before "update")' %
                 section)
@@ -161,7 +163,11 @@ class ChannelSearchPath(TarrableSearchPath):
             self.old_git_revision = self.git_revision
             del self.git_revision
 
-        pin_channel(v, self)
+        fetch(v, self)
+        parse_channel(v, self)
+        fetch_resources(v, self)
+        ensure_git_rev_available(v, self)
+        check_channel_contents(v, self)
         return ChannelPin(
             release_name=self.release_name,
             tarball_url=self.table['nixexprs.tar.xz'].absolute_url,
@@ -299,7 +305,7 @@ def fetch_with_nix_prefetch_url(
     return path  # type: ignore  # (for old mypy)
 
 
-def fetch_resources(v: Verification, channel: TarrableSearchPath) -> None:
+def fetch_resources(v: Verification, channel: ChannelSearchPath) -> None:
     for resource in ['git-revision', 'nixexprs.tar.xz']:
         fields = channel.table[resource]
         fields.absolute_url = urllib.parse.urljoin(
@@ -559,14 +565,6 @@ def check_channel_contents(
     v.ok()
 
 
-def pin_channel(v: Verification, channel: TarrableSearchPath) -> None:
-    fetch(v, channel)
-    parse_channel(v, channel)
-    fetch_resources(v, channel)
-    ensure_git_rev_available(v, channel)
-    check_channel_contents(v, channel)
-
-
 def git_revision_name(v: Verification, channel: TarrableSearchPath) -> str:
     v.status('Getting commit date')
     process = subprocess.run(['git',
@@ -585,11 +583,12 @@ def git_revision_name(v: Verification, channel: TarrableSearchPath) -> str:
 
 
 def read_search_path(conf: configparser.SectionProxy) -> SearchPath:
-    if 'alias_of' in conf:
-        return AliasSearchPath(**dict(conf.items()))
-    if 'channel_url' in conf:
-        return ChannelSearchPath(**dict(conf.items()))
-    return GitSearchPath(**dict(conf.items()))
+    mapping: Mapping[str, Type[SearchPath]] = {
+        'alias': AliasSearchPath,
+        'channel': ChannelSearchPath,
+        'git': GitSearchPath,
+    }
+    return mapping[conf['type']](**dict(conf.items()))
 
 
 def read_config(filename: str) -> configparser.ConfigParser:
@@ -610,7 +609,7 @@ def read_config_files(
     return merged_config
 
 
-def pin(args: argparse.Namespace) -> None:
+def pinCommand(args: argparse.Namespace) -> None:
     v = Verification()
     config = read_config(args.channels_file)
     for section in config.sections():
@@ -625,7 +624,7 @@ def pin(args: argparse.Namespace) -> None:
         config.write(configfile)
 
 
-def update(args: argparse.Namespace) -> None:
+def updateCommand(args: argparse.Namespace) -> None:
     v = Verification()
     exprs: Dict[str, str] = {}
     config = read_config_files(args.channels_file)
@@ -667,11 +666,11 @@ def main() -> None:
     parser_pin = subparsers.add_parser('pin')
     parser_pin.add_argument('channels_file', type=str)
     parser_pin.add_argument('channels', type=str, nargs='*')
-    parser_pin.set_defaults(func=pin)
+    parser_pin.set_defaults(func=pinCommand)
     parser_update = subparsers.add_parser('update')
     parser_update.add_argument('--dry-run', action='store_true')
     parser_update.add_argument('channels_file', type=str, nargs='+')
-    parser_update.set_defaults(func=update)
+    parser_update.set_defaults(func=updateCommand)
     args = parser.parse_args()
     args.func(args)