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namespaces: let namespaces override singlenode() definition...
namespaces: let namespaces override singlenode() definition Some namespaces have multiple nodes per name (meaning that their namemap() returns multiple nodes). One such namespace is the "topics" namespace (from the evolve repo). We also have our own internal namespace at Google (for review units) that has multiple nodes per name. These namespaces may not want to use the default "pick highest revnum" resolution that we currently use when resolving a name to a single node. As an example, they may decide that `hg co <name>` should check out a commit that's last in some sense even if an earlier commit had just been amended and thus had a higher revnum [1]. This patch gives the namespace the option to continue to return multiple nodes and to override how the best node is picked. Allowing namespaces to override that may also be useful as an optimization (it may be cheaper for the namespace to find just that node). I have been arguing (in D3715) for using all the nodes returned from namemap() when resolving the symbol to a revset, so e.g. `hg log -r stable` would resolve to *all* nodes on stable, not just the one with the highest revnum (except that I don't actually think we should change it for the branch namespace because of BC). Most people seem opposed to that. If we decide not to do it, I think we can deprecate the namemap() function in favor of the new singlenode() (I find it weird to have namespaces, like the branch namespace, where namemap() isn't nodemap()'s inverse). I therefore think this patch makes sense regardless of what we decide on that issue. [1] Actually, even the branch namespace would have wanted to override singlenode() if it had supported multiple nodes. That's because closes branch heads are mostly ignored, so "hg co default" will not check out the highest-revnum node if that's a closed head. Differential Revision: https://phab.mercurial-scm.org/D3852
Mads Kiilerich - - Load All Authors

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dummycert.pem
56 lines | 2.2 KiB | application/pgp-keys | AscLexer
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A dummy certificate that will make OS X 10.6+ Python use the system CA
certificate store:
-----BEGIN CERTIFICATE-----
MIIBIzCBzgIJANjmj39sb3FmMA0GCSqGSIb3DQEBBQUAMBkxFzAVBgNVBAMTDmhn
LmV4YW1wbGUuY29tMB4XDTE0MDgzMDA4NDU1OVoXDTE0MDgyOTA4NDU1OVowGTEX
MBUGA1UEAxMOaGcuZXhhbXBsZS5jb20wXDANBgkqhkiG9w0BAQEFAANLADBIAkEA
mh/ZySGlcq0ALNLmA1gZqt61HruywPrRk6WyrLJRgt+X7OP9FFlEfl2tzHfzqvmK
CtSQoPINWOdAJMekBYFgKQIDAQABMA0GCSqGSIb3DQEBBQUAA0EAF9h49LkSqJ6a
IlpogZuUHtihXeKZBsiktVIDlDccYsNy0RSh9XxUfhk+XMLw8jBlYvcltSXdJ7We
aKdQRekuMQ==
-----END CERTIFICATE-----
This certificate was generated to be syntactically valid but never be usable;
it expired before it became valid.
Created as:
$ cat > cn.conf << EOT
> [req]
> distinguished_name = req_distinguished_name
> [req_distinguished_name]
> commonName = Common Name
> commonName_default = no.example.com
> EOT
$ openssl req -nodes -new -x509 -keyout /dev/null \
> -out dummycert.pem -days -1 -config cn.conf -subj '/CN=hg.example.com'
To verify the content of this certificate:
$ openssl x509 -in dummycert.pem -noout -text
Certificate:
Data:
Version: 1 (0x0)
Serial Number: 15629337334278746470 (0xd8e68f7f6c6f7166)
Signature Algorithm: sha1WithRSAEncryption
Issuer: CN=hg.example.com
Validity
Not Before: Aug 30 08:45:59 2014 GMT
Not After : Aug 29 08:45:59 2014 GMT
Subject: CN=hg.example.com
Subject Public Key Info:
Public Key Algorithm: rsaEncryption
Public-Key: (512 bit)
Modulus:
00:9a:1f:d9:c9:21:a5:72:ad:00:2c:d2:e6:03:58:
19:aa:de:b5:1e:bb:b2:c0:fa:d1:93:a5:b2:ac:b2:
51:82:df:97:ec:e3:fd:14:59:44:7e:5d:ad:cc:77:
f3:aa:f9:8a:0a:d4:90:a0:f2:0d:58:e7:40:24:c7:
a4:05:81:60:29
Exponent: 65537 (0x10001)
Signature Algorithm: sha1WithRSAEncryption
17:d8:78:f4:b9:12:a8:9e:9a:22:5a:68:81:9b:94:1e:d8:a1:
5d:e2:99:06:c8:a4:b5:52:03:94:37:1c:62:c3:72:d1:14:a1:
f5:7c:54:7e:19:3e:5c:c2:f0:f2:30:65:62:f7:25:b5:25:dd:
27:b5:9e:68:a7:50:45:e9:2e:31