1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
|
<?xml version="1.0"?>
<guide self="general-concepts/mirrors/">
<chapter>
<title>Mirrors</title>
<section>
<title>Automatic Mirroring</title>
<body>
<p>
Packages will automatically have their <c>SRC_URI</c> components mirrored onto
Gentoo mirrors. When fetching, Portage checks Gentoo mirrors first before
trying the original upstream location.
</p>
<p>
This is generally desired behaviour <d/> upstream mirrors are prone to being
rearranged, tidied out or having files modified.
</p>
</body>
<subsection>
<title>Restricting Automatic Mirroring</title>
<body>
<p>
Three <c>RESTRICT</c> keywords can be used to control the mirroring process.
</p>
<p>
The <c>RESTRICT="mirror"</c> setting should be used if we cannot legally mirror
certain files; files will still be downloaded from the original locations.
</p>
<p>
The <c>RESTRICT="primaryuri"</c> setting causes Portage to try
original locations <e>first</e>, and then fall back to mirrors if necessary.
This should not be used in new ebuilds.
</p>
<p>
There is also <c>RESTRICT="fetch"</c>, which prevents Portage from trying to
fetch anything manually. The <uri link="::ebuild-writing/functions/pkg_nofetch">
pkg_nofetch</uri> function will be called if any <c>SRC_URI</c> components cannot be
found. This should only be used if a license requires it.
</p>
</body>
</subsection>
<subsection>
<title>Replacing Automatically Mirrored Files</title>
<body>
<p>
On rare occasions you may need to replace a file that is already mirrored. In this case proceed as
follows:
<ol>
<li>Put a copy of the new distfile on dev.gentoo.org into /space/distfiles-local</li>
<li>commit the new manifest to the git tree</li>
<li>wait</li>
</ol>
After a few hours a cron job on dev.gentoo.org will fetch the file and replace the version on the
mirrors. The file will be automatically removed from /space/distfiles-local after approximately two
weeks.
</p>
<p>
More general information about the internals of mirroring can be found on <uri
link="https://www.gentoo.org/proj/en/infrastructure/mirrors/overview-distfile.xml">infrastructure's
pages</uri>.
</p>
</body>
</subsection>
<subsection>
<title>Suitable Download Hosts</title>
<body>
<p>
If you have to host a source file (patch or tarball) yourself, as long as it is suitable to be
distributed by Gentoo Foundation (by license and legality), you're suggested to use your developer's
space at <c>dev.gentoo.org</c>. Since external overlays may depend on your patches/tarballs, using the
dev space at <c>dev.gentoo.org</c> keeps the distfiles at a stable and reliable infrastructure. If you
retire, other developers can take over your distfiles and place them into their own devspace.
</p>
<p>
Previous policy was to use <c>mirror://gentoo</c> directly, but this is now deprecated, as that
wouldn't allow to have long-term availability and traceability of the source files, which might be a
requirement of the license.
</p>
<p>
When you upload the file to <c>dev.gentoo.org:~/public_html</c>, you must ensure that it, and its
parent directories, are world-readable.
</p>
</body>
</subsection>
</section>
<section>
<title>Gentoo Mirrors</title>
<body>
<p>
To manually upload a file to <c>mirror://gentoo</c>, <c>scp</c> it to
<c>dev.gentoo.org:/space/distfiles-local</c>. The file should appear
on the mirrors within four hours (note that this is <e>less
frequent</e> than <uri link="::general-concepts/git-to-rsync"/>).
If the upstream download location for a package uses a non-standard TCP port
(anything other than 21, 80 or 443), you <e>must</e> manually mirror the files. Not
doing so can cause all kinds of problems with strict firewalls.
</p>
</body>
</section>
<section>
<title>Mirroring Process</title>
<body>
<figure short="Mirroring Process" link="diagram.png">
Diagram showing the mirroring process.
</figure>
</body>
</section>
<section>
<title>Third-party mirrors</title>
<body>
<p>
Usage of third-party mirrors and the <c>mirror://</c>
pseudo-protocol is described in the <uri
link="::ebuild-writing/variables/#third-party-mirrors"><c>SRC_URI</c>
variable documentation</uri>.
</p>
</body>
</section>
</chapter>
</guide>
|