zsh : promptinit and compinit definition files not found

[MP2E]

Upon updating to the newest nixpkgs this evening I now receive warnings when I open zsh

/etc/zshrc:12: promptinit: function definition file not found
/home/cray/.zshrc:15: compinit: function definition file not found
/home/cray/.zshrc:16: promptinit: function definition file not found

Here is my configuration.nix : https://github.com/MP2E/nix-projects/blob/master/nixos-config/configuration.nix

Perhaps related to 766207c? I'll do some bisecting and report back.

[jagajaga]

When I was merging that PR, I've tested it locally and everything was ok...
cc @kirelagin

[MP2E]

Hm, confirmed with the bisect. Very strange! I don't see how adding a path could break anything... The change looks good to me. My configs are available in the repo above in case there's something different from my machine to yours

[jagajaga]

Can you post
echo $FPATH
Before that commit and after?

[MP2E]

Before:
/usr/local/share/zsh/site-functions:/nix/store/z2acn6qlpjr3jigkgdg4c75b58bmf9n7-zsh-5.0.7/share/zsh/site-functions:/nix/store/z2acn6qlpjr3jigkgdg4c75b58bmf9n7-zsh-5.0.7/share/zsh/5.0.7/functions

After:
/home/cray/.nix-profile/share/zsh/site-functions:/nix/var/nix/profiles/default/share/zsh/site-functions:/run/current-system/sw/share/zsh/site-functions

[kirelagin]

Hm, sorry for that, my NixOS box is broken right now, so I couldn’t test the changes thoroughly.

This default value of $FPATH gets hardcoded during build of zsh (by the way, surprisingly, there is no easy way to get rid of /usr/local/share/zsh/site-functions). Of all the default paths only /nix/store/…-zsh-5.0.7/share/zsh/5.0.7/functions (which they call fndir) is interesting for us, because the other one is already handled by profileRelativeEnvVars.

Right now I see two possible solutions (in order of preference):

1. Make profileRelativeEnvVars prepend paths. Why does it overwrite the variable, anyway? Is that a feature or a bug? (/cc @oxij @edolstra @nbp).
2. Append this per-zsh-instance path separately during shell initialization.

[MP2E]

1 sounds good to me, I think prepending is better behavior in this case

[RafalBabinicz]

Bump.
Today I upgraded to nixos-15.05pre55818.173f41c (and after that to 15.05.git.c68ed69M). Unfortunately, I forgot to check Issues page before that.

This is what I have:

zsh’s FPATH

zsh: profile-relative functions path · 766207c · NixOS/nixpkgs · GitHub
gives '/etc/zshrc:12: promptinit: function definition file not found'

Investigating (after reverting 766207c)

>echo $FPATH
/home/kmicu/fpath:/usr/local/share/zsh/site-functions:/nix/store/m6xrbr4p1nkd9zirdi3gnpjwqmy6yax1-zsh-5.0.7/share/zsh/site-functions:/nix/store/m6xrbr4p1nkd9zirdi3gnpjwqmy6yax1-zsh-5.0.7/share/zsh/5.0.7/functions

Checking each path:

> ls /home/kmicu/fpath
prompt_pure_setup

this is from my personal .zshrc.

 > ls /usr/local/share/zsh/site-functions

gives no such directory.

> ls /nix/store/m6xrbr4p1nkd9zirdi3gnpjwqmy6yax1-zsh-5.0.7/share/zsh/site-functions

gives empty directory.

> ls -all /nix/store/m6xrbr4p1nkd9zirdi3gnpjwqmy6yax1-zsh-5.0.7/share/zsh/5.0.7/functions

gives

total 5508
dr-xr-xr-x 1 root root  17412 Jan  1  1970 .
dr-xr-xr-x 1 root root     40 Jan  1  1970 ..
-r--r--r-- 1 root root   2809 Jan  1  1970 _a2ps
-r--r--r-- 1 root root    487 Jan  1  1970 _a2utils
…
-r--r--r-- 1 root root   1939 Jan  1  1970 prompt_fire_setup
-r--r--r-- 1 root root   5942 Jan  1  1970 promptinit
-r--r--r-- 1 root root   3307 Jan  1  1970 promptnl
…
-r--r--r-- 1 root root   6093 Jan  1  1970 _zypper

Workaround

For now just revert 766207c

environment.profileRelativeEnvVars =
{ FPATH = [ "/share/zsh/site-functions" ]; };

Additional info

nixos-version
15.05.git.c68ed69M (Dingo)

zsh --version
zsh 5.0.7 (x86_64-unknown-linux-gnu)

[jagajaga]

@kirelagin @MP2E so reverting for now.

@oxij @edolstra what about the real workaround? #5571 (comment) has good suggestions.

[tomberek]

For those who might need it:

print -r /nix/store/*zsh-5.0.7/share/zsh/5.0.7/functions([-1]) 

Should give you a path to put into a configuration.nix:

environment.interactiveShellInit =  ''
export FPATH=/nix/store/LONG HASH-zsh-5.0.7/share/zsh/5.0.7/functions:$FPATH
""

nixos-rebuild switch and you have a usable system until 766207c is reverted.

[jagajaga]

@tomberek 4f596fb

[MP2E]

This issue has been fixed for me, so I'll close this.

Is there need for a more proper solution? If so comment/reopen