Installer nushell support

.gitignore

@@ -38,6 +38,8 @@ perl/Makefile.config
 /scripts/nix-profile-daemon.sh
 /scripts/nix-profile.fish
 /scripts/nix-profile-daemon.fish
+/scripts/nix-profile.nu
+/scripts/nix-profile-daemon.nu
 
 # /src/libexpr/
 /src/libexpr/lexer-tab.cc

scripts/install-nix-from-closure.sh

@@ -218,6 +218,7 @@ added=
 p=
 p_sh=$NIX_LINK/etc/profile.d/nix.sh
 p_fish=$NIX_LINK/etc/profile.d/nix.fish
+p_nu=$NIX_LINK/etc/profile.d/nix.nu
 if [ -z "$NIX_INSTALLER_NO_MODIFY_PROFILE" ]; then
     # Make the shell source nix.sh during login.
     for i in .bash_profile .bash_login .profile; do
@@ -257,6 +258,13 @@ if [ -z "$NIX_INSTALLER_NO_MODIFY_PROFILE" ]; then
         added=1
         p=${p_fish}
     fi
+
+    if [ -d "$HOME/.config/nushell" ]; then
+        fn="$HOME/.config/nushell/env.nu"
+        printf '\nif ("%s" | path exists) { source "%s"; } # added by Nix installer\n' "$p_nu" "$p_nu" >> "$fn"
+        added=1
+        p=${p_nu}
+    fi
 else
     p=${p_sh}
 fi

scripts/local.mk

@@ -7,7 +7,9 @@ profiledir = $(sysconfdir)/profile.d
 
 $(eval $(call install-file-as, $(d)/nix-profile.sh, $(profiledir)/nix.sh, 0644))
 $(eval $(call install-file-as, $(d)/nix-profile.fish, $(profiledir)/nix.fish, 0644))
+$(eval $(call install-file-as, $(d)/nix-profile.nu, $(profiledir)/nix.nu, 0644))
 $(eval $(call install-file-as, $(d)/nix-profile-daemon.sh, $(profiledir)/nix-daemon.sh, 0644))
 $(eval $(call install-file-as, $(d)/nix-profile-daemon.fish, $(profiledir)/nix-daemon.fish, 0644))
+$(eval $(call install-file-as, $(d)/nix-profile-daemon.nu, $(profiledir)/nix-daemon.nu, 0644))
 
 clean-files += $(nix_noinst_scripts)

scripts/nix-profile-daemon.nu.in

@@ -0,0 +1,51 @@
+# Only execute this file once per shell.
+if ('__ETC_PROFILE_NIX_SOURCED' in $env) {
+    return;
+}
+$env.__ETC_PROFILE_NIX_SOURCED = 1;
+
+mut NIX_LINK = [$env.HOME '.nix-profile'] | path join;
+mut NIX_LINK_NEW = [$env.HOME '.local/state/nix/profile'];
+if 'XDG_STATE_HOME' in $env {
+    $NIX_LINK_NEW = [$env.XDG_STATE_HOME 'nix/profile'];
+}
+$NIX_LINK_NEW = ($NIX_LINK_NEW | path join);
+if ($NIX_LINK_NEW | path exists) {
+    $NIX_LINK = $NIX_LINK_NEW;
+}
+
+$env.NIX_PROFILES = (['@localstatedir@/nix/profiles/default' $NIX_LINK] | str join ' ');
+
+# Populate bash completions, .desktop files, etc
+if 'XDG_DATA_DIRS' not-in $env {
+    # According to XDG spec the default is /usr/local/share:/usr/share, don't set something that prevents that default
+    $env.XDG_DATA_DIRS = (['/usr/local/share' '/usr/share'] | str join (char esep));
+}
+$env.XDG_DATA_DIRS = (
+    $env.XDG_DATA_DIRS
+    | split row (char esep)
+    | append ([$NIX_LINK 'share'] | path join)
+    | append '/nix/var/nix/profiles/default/share'
+    | str join (char esep)
+);
+
+# Set $NIX_SSL_CERT_FILE so that Nixpkgs applications like curl work.
+if ('NIX_SSL_CERT_FILE' in $env) {
+   # Allow users to override the NIX_SSL_CERT_FILE 
+} else if ('/etc/ssl/certs/ca-certificates.crt' | path exists) { # NixOS, Ubuntu, Debian, Gentoo, Arch
+    $env.NIX_SSL_CERT_FILE = '/etc/ssl/certs/ca-certificates.crt';
+} else if ('/etc/ssl/ca-bundle.pem' | path exists) { # openSUSE Tumbleweed
+    $env.NIX_SSL_CERT_FILE = '/etc/ssl/ca-bundle.pem';
+} else if ('/etc/ssl/certs/ca-bundle.crt' | path exists) { # Old NixOS
+    $env.NIX_SSL_CERT_FILE = '/etc/ssl/certs/ca-bundle.crt';
+} else if ('/etc/pki/tls/certs/ca-bundle.crt' | path exists) { # Fedora, CentOS
+    $env.NIX_SSL_CERT_FILE = '/etc/pki/tls/certs/ca-bundle.crt';
+} else {
+    # Fall back to what is in the nix profiles, favouring whatever is defined last.
+    $env.NIX_PROFILES
+    | split row (char space)
+    | where ([$it 'etc/ssl/certs/ca-bundle.crt'] | path join | path exists)
+    | each { |it| $env.NIX_SSL_CERT_FILE = ([$it 'etc/ssl/certs/ca-bundle.crt'] | path join) }
+}
+
+$env.PATH = ($env.PATH | prepend '@localstatedir@/nix/profiles/default/bin' | prepend ([$NIX_LINK 'bin'] | path join));

scripts/nix-profile.nu.in

@@ -0,0 +1,54 @@
+if ([$env.HOME $env.USER] | all {nu-check}) {
+
+    # Set up the per-user profile.
+    mut NIX_LINK = [$env.HOME '.nix-profile'] | path join;
+    mut NIX_LINK_NEW = [$env.HOME '.local/state/nix/profile'];
+    if 'XDG_STATE_HOME' in $env {
+        $NIX_LINK_NEW = [$env.XDG_STATE_HOME 'nix/profile'];
+    }
+    $NIX_LINK_NEW = ($NIX_LINK_NEW | path join);
+    if ($NIX_LINK_NEW | path exists) {
+        $NIX_LINK = $NIX_LINK_NEW;
+    }
+
+    # Set up environment.
+    # This part should be kept in sync with nixpkgs:nixos/modules/programs/environment.nix
+    $env.NIX_PROFILES = (['@localstatedir@/nix/profiles/default' $NIX_LINK] | str join ' ');
+
+    # Populate bash completions, .desktop files, etc
+    if 'XDG_DATA_DIRS' not-in $env {
+        # According to XDG spec the default is /usr/local/share:/usr/share, don't set something that prevents that default
+        $env.XDG_DATA_DIRS = (['/usr/local/share' '/usr/share'] | str join (char esep));
+    }
+    $env.XDG_DATA_DIRS = (
+        $env.XDG_DATA_DIRS
+        | split row (char esep)
+        | append ([$NIX_LINK 'share'] | path join)
+        | append '/nix/var/nix/profiles/default/share'
+        | str join (char esep)
+    );
+
+    # Set $NIX_SSL_CERT_FILE so that Nixpkgs applications like curl work.
+    if ('/etc/ssl/certs/ca-certificates.crt' | path exists) { # NixOS, Ubuntu, Debian, Gentoo, Arch
+        $env.NIX_SSL_CERT_FILE = '/etc/ssl/certs/ca-certificates.crt';
+    } else if ('/etc/ssl/ca-bundle.pem' | path exists) { # openSUSE Tumbleweed
+        $env.NIX_SSL_CERT_FILE = '/etc/ssl/ca-bundle.pem';
+    } else if ('/etc/ssl/certs/ca-bundle.crt' | path exists) { # Old NixOS
+        $env.NIX_SSL_CERT_FILE = '/etc/ssl/certs/ca-bundle.crt';
+    } else if ('/etc/pki/tls/certs/ca-bundle.crt' | path exists) { # Fedora, CentOS
+        $env.NIX_SSL_CERT_FILE = '/etc/pki/tls/certs/ca-bundle.crt';
+    } else if ([$NIX_LINK 'etc/ssl/certs/ca-bundle.crt'] | path join | path exists) { # fall back to cacert in Nix profile
+        $env.NIX_SSL_CERT_FILE = ([$NIX_LINK 'etc/ssl/certs/ca-bundle.crt'] | path join);
+    } else if ([$NIX_LINK 'etc/ca-bundle.crt'] | path join | path exists) { # old cacert in Nix profile
+        $env.NIX_SSL_CERT_FILE = ([$NIX_LINK '/etc/ca-bundle.crt'] | path join);
+    }
+
+    # Only use MANPATH if it is already set. In general `man` will just simply
+    # pick up `.nix-profile/share/man` because is it close to `.nix-profile/bin`
+    # which is in the $PATH. For more info, run `manpath -d`.
+    if ('MANPATH' in $env) {
+        $env.MANPATH = ([$NIX_LINK 'share/man'] | path join | append $"(char esep)($env.MANPATH)");
+    }
+
+    $env.PATH = ($env.PATH | prepend ([$NIX_LINK 'bin'] | path join));
+}