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Nix Hackers

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For people hacking on the Nix package manager itself171 Servers

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20 Dec 2024
@hsngrmpf:matrix.orgDavHauIs there any nix command that I can use to get the corresponding store path for a given nar hash, assuming the store path exists in my local /nix/store?10:37:16
@infinisil:matrix.orginfinisil
In reply to @hsngrmpf:matrix.org
Is there any nix command that I can use to get the corresponding store path for a given nar hash, assuming the store path exists in my local /nix/store?
Not a Nix command, but you can make an sql query to the sqlite database in /var/nix/var
10:49:21
@hsngrmpf:matrix.orgDavHauOK thanks10:50:01
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@joerg:thalheim.ioMic92I implemented that for harmonia17:46:59
@joerg:thalheim.ioMic92 DavHau: https://github.com/nix-community/harmonia/blob/8cb82560d129c370a0c6c693425611e9396ef85c/src/daemon.rs#L584 17:48:40
@joerg:thalheim.ioMic92Maybe the c api for nix also exposes it. I now the perl-bindings do17:49:04
@joerg:thalheim.ioMic92Shallow clones help a bit. Until we get the pay off with lazy paths.17:50:09
21 Dec 2024
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22 Dec 2024
@drewrypope:matrix.orgDrewry Pope why aren't shallow clones the default? 11:30:43
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23 Dec 2024
@joerg:thalheim.ioMic92I think they don't have a revision count, which is unfortunately a feature.09:23:20
@joerg:thalheim.ioMic92But I think we could still use this for github/gitlab fetchers.09:24:56
@drewrypope:matrix.orgDrewry Pope ahhhhHHHHHHHHHH ok thank you 09:30:59
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@fgrsnau:matrix.orgStefan changed their display name from fgrsnau to Stefan.23:41:15
24 Dec 2024
@trofi:matrix.orgtrofi postgresql_14 fails the build with the following cryptic error: error: derivation contains an illegal reference specifier 'man'. What does it mean? One of the outputs is not supposed to have man reference, but does? But it does not say which output It is. Is it something else? 22:20:06
@trofi:matrix.orgtrofi

Surprisingly adding a no-op change like:

--- a/pkgs/servers/sql/postgresql/generic.nix
+++ b/pkgs/servers/sql/postgresql/generic.nix
@@ -447,0 +448,2 @@ let
+      FOO = "42";
+

fixes the build. As if there is some ordering issue in nix to discover known outputs.

22:25:47
@matthewcroughan:defenestrate.itmatthewcroughanThere is currently no way to pass auth headers into filetransfer.cc, open PRs/Issues about it, years of history about authentication being unsolved, how come?22:29:02
@matthewcroughan:defenestrate.itmatthewcroughanhttps://ec.haxx.se/libcurl-http/auth.html#bearer22:29:16
@matthewcroughan:defenestrate.itmatthewcroughan All that must be done is passing CURLOPT_XOAUTH2_BEARER when present 22:29:31
@matthewcroughan:defenestrate.itmatthewcroughanyet this is only supported for gitlab fetches22:29:47
25 Dec 2024
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@tanja:catgirl.cloudTanja (she/her) changed their display name from Tanja (she/her) to Tanja (she/her) [DECT 6929].14:48:10
@chukfinley:matrix.orghackerman_1337 changed their display name from hackerman to hackerman_1337.19:06:51
@trofi:matrix.orgtrofi Attempted to improve an error message as https://github.com/NixOS/nix/pull/12105. Looks like nix losk man output when built a goal with man output. I wonder if outputChecks does not specify some kind of dependency for string references luke plain "man". 22:07:02

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