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375/376: Add a section on nix-serve

From: Ludovic Courtès
Subject: 375/376: Add a section on nix-serve
Date: Wed, 28 Jan 2015 22:06:17 +0000

civodul pushed a commit to tag 1.8
in repository guix.

commit 47ed06a290c66d41622c096c28da5b1c71be885b
Author: Eelco Dolstra <address@hidden>
Date:   Sun Dec 14 03:37:41 2014 +0100

    Add a section on nix-serve
 doc/manual/packages/binary-cache-substituter.xml |   70 ++++++++++++++++++++++
 doc/manual/packages/copy-closure.xml             |    2 +-
 doc/manual/packages/sharing-packages.xml         |    1 +
 3 files changed, 72 insertions(+), 1 deletions(-)

diff --git a/doc/manual/packages/binary-cache-substituter.xml 
new file mode 100644
index 0000000..c6ceb9c
--- /dev/null
+++ b/doc/manual/packages/binary-cache-substituter.xml
@@ -0,0 +1,70 @@
+<section xmlns="";
+         xmlns:xlink="";
+         xmlns:xi="";
+         version="5.0"
+         xml:id="ssec-binary-cache-substituter">
+<title>Serving a Nix store via HTTP</title>
+<para>You can easily share the Nix store of a machine via HTTP. This
+allows other machines to fetch store paths from that machine to speed
+up installations. It uses the same <emphasis>binary cache</emphasis>
+mechanism that Nix usually uses to fetch pre-built binaries from
+<para>The daemon that handles binary cache requests via HTTP,
+<command>nix-serve</command>, is not part of the Nix distribution, but
+you can install it from Nixpkgs:
+$ nix-env -i nix-serve
+You can then start the server, listening for HTTP connections on
+whatever port you like:
+$ nix-serve -p 8080
+To check whether it works, try the following on the client:
+$ curl http://avalon:8080/nix-cache-info
+which should print something like:
+StoreDir: /nix/store
+WantMassQuery: 1
+Priority: 30
+<para>On the client side, you can tell Nix to use your binary cache
+using <option>--option extra-binary-caches</option>, e.g.:
+$ nix-env -i firefox --option extra-binary-caches http://avalon:8080/
+The option <option>extra-binary-caches</option> tells Nix to use this
+binary cache in addition to your default caches, such as
+<uri></uri>. Thus, for any path in the closure
+of Firefox, Nix will first check if the path is available on the
+server <literal>avalon</literal> or another binary caches. If not, it
+will fall back to building from source.</para>
+<para>You can also tell Nix to always use your binary cache by adding
+a line to the <filename linkend="sec-conf-file">nix.conf</filename>
+configuration file like this:
+binary-caches = http://avalon:8080/
diff --git a/doc/manual/packages/copy-closure.xml 
index 5ec7896..012030e 100644
--- a/doc/manual/packages/copy-closure.xml
+++ b/doc/manual/packages/copy-closure.xml
@@ -4,7 +4,7 @@
-<title>Copying Closures</title>
+<title>Copying Closures Via SSH</title>
 <para>The command <command
 linkend="sec-nix-copy-closure">nix-copy-closure</command> copies a Nix
diff --git a/doc/manual/packages/sharing-packages.xml 
index 586363b..8465c18 100644
--- a/doc/manual/packages/sharing-packages.xml
+++ b/doc/manual/packages/sharing-packages.xml
@@ -12,6 +12,7 @@ another machine already has some or all of those packages or 
 dependencies.  In that case there are mechanisms to quickly copy
 packages between machines.</para>
+<xi:include href="binary-cache-substituter.xml" />
 <xi:include href="copy-closure.xml" />
 <xi:include href="ssh-substituter.xml" />

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