chore: update nixos channel URLs

Channels have moved from `nixos.org/channels` to `cnannels.nixos.org`.
This udates all relevant links (excluding release notes) to use the new
canonical URLs and replaces HTTP with HTTPS.

Fixes #1031.

Change-Id: I212821c44ac5e482c8e9eaa415c7d8ee17ff8341
Signed-off-by: adam <me@adamperkowski.dev>

doc/manual/src/command-ref/nix-build.md

@@ -58,7 +58,7 @@ $ nix-build flake:nixpkgs -A firefox
 $ nix-build flake:github:NixOS/nixpkgs/release-23.11 -A firefox
 ```
 
-Finally, for legacy reasons, if a path starts with `channel:`, the rest of the argument is interpreted as the name of a *nixpkgs* channel tarball to fetch from `https://nixos.org/channels/$CHANNEL_NAME/nixexprs.tar.xz`.
+Finally, for legacy reasons, if a path starts with `channel:`, the rest of the argument is interpreted as the name of a *nixpkgs* channel tarball to fetch from `https://channels.nixos.org/$CHANNEL_NAME/nixexprs.tar.xz`.
 This is a **hard coded URL** pattern and is *not* related to the subscribed channels managed by the [nix-channel](./nix-channel.md) command.
 
 > **Note**: any of the special syntaxes may always be disambiguated by prefixing the path.

doc/manual/src/command-ref/nix-channel.md

@@ -11,7 +11,7 @@
 Channels are a mechanism for referencing remote Nix expressions and conveniently retrieving their latest version.
 
 The moving parts of channels are:
-- The official channels listed at <https://nixos.org/channels>
+- The official channels listed at <https://channels.nixos.org>
 - The user-specific list of [subscribed channels](#subscribed-channels)
 - The [downloaded channel contents](#channels)
 - The [Nix expression search path](@docroot@/command-ref/conf-file.md#conf-nix-path), set with the [`-I` option](#opt-I) or the [`NIX_PATH` environment variable](#env-NIX_PATH)
@@ -77,9 +77,9 @@ This command has the following operations:
 Subscribe to the Nixpkgs channel and run `hello` from the GNU Hello package:
 
 ```console
-$ nix-channel --add https://nixos.org/channels/nixpkgs-unstable
+$ nix-channel --add https://channels.nixos.org/nixpkgs-unstable
 $ nix-channel --list
-nixpkgs https://nixos.org/channels/nixpkgs
+nixpkgs https://channels.nixos.org/nixpkgs
 $ nix-channel --update
 $ nix-shell -p hello --run hello
 hello

doc/manual/src/package-management/basic-package-mgmt.md

@@ -41,7 +41,7 @@ install Lix. If this is not the case for some reason, you can add it
 as follows:
 
 ```console
-$ nix-channel --add https://nixos.org/channels/nixpkgs-unstable
+$ nix-channel --add https://channels.nixos.org/nixpkgs-unstable
 $ nix-channel --update
 ```
 
@@ -49,7 +49,7 @@ $ nix-channel --update
 >
 > On NixOS, you’re automatically subscribed to a NixOS channel
 > corresponding to your NixOS major release (e.g.
-> <http://nixos.org/channels/nixos-21.11>). A NixOS channel is identical
+> <https://channels.nixos.org/nixos-21.11>). A NixOS channel is identical
 > to the Nixpkgs channel, except that it contains only Linux binaries
 > and is updated only if a set of regression tests succeed.
 

docker.nix

@@ -8,7 +8,7 @@
   tag ? "latest",
   bundleNixpkgs ? true,
   channelName ? "nixpkgs",
-  channelURL ? "https://nixos.org/channels/nixpkgs-unstable",
+  channelURL ? "https://channels.nixos.org/nixpkgs-unstable",
   extraPkgs ? [ ],
   maxLayers ? 100,
   nixConf ? { },

lix/libcmd/common-eval-args.cc

@@ -113,7 +113,7 @@ MixEvalArgs::MixEvalArgs()
 
   ```
   -I nixpkgs=channel:nixos-21.05
-  -I nixpkgs=https://nixos.org/channels/nixos-21.05/nixexprs.tar.xz
+  -I nixpkgs=https://channels.nixos.org/nixos-21.05/nixexprs.tar.xz
   ```
 
   You can also fetch source trees using [flake URLs](./nix3-flake.md#url-like-syntax) and add them to the

lix/libexpr/eval-settings.cc

@@ -82,7 +82,7 @@ bool EvalSettings::isPseudoUrl(std::string_view s)
 std::string EvalSettings::resolvePseudoUrl(std::string_view url)
 {
     if (url.starts_with("channel:"))
-        return "https://nixos.org/channels/" + std::string(url.substr(8)) + "/nixexprs.tar.xz";
+        return "https://channels.nixos.org/" + std::string(url.substr(8)) + "/nixexprs.tar.xz";
     else
         return std::string(url);
 }

lix/nix/nix.md

@@ -222,7 +222,7 @@ $ nix build 'nixpkgs#firefox' # from flake.nix
 $ nix build -f flake:nixpkgs firefox # from default.nix in the flake directory; ignores flake.nix altogether
 ```
 
-Finally, for legacy reasons, if a *fileish* starts with `channel:`, the rest of the argument is interpreted as the name of a channel to fetch from `https://nixos.org/channels/$CHANNEL_NAME/nixexprs.tar.gz`.
+Finally, for legacy reasons, if a *fileish* starts with `channel:`, the rest of the argument is interpreted as the name of a channel to fetch from `https://channels.nixos.org/$CHANNEL_NAME/nixexprs.tar.gz`.
 This is a **hard coded URL** pattern and is *not* related to the subscribed channels managed by the [nix-channel](../nix-channel.md) command.
 
 <!-- XXX(jade): it is my understanding that although a lot of content here is duplicated from nix-build.md, THESE ARE NOT THE SAME BAD PARSER AAAAAAAAAAAA -->

tests/unit/libcmd/args.cc

@@ -13,7 +13,7 @@
 #include "lix/libutil/types.hh"
 
 constexpr std::string_view INVALID_CHANNEL = "channel:example";
-constexpr std::string_view CHANNEL_URL = "https://nixos.org/channels/example/nixexprs.tar.xz";
+constexpr std::string_view CHANNEL_URL = "https://channels.nixos.org/example/nixexprs.tar.xz";
 
 namespace nix
 {