From 0df32624d0b82f8fec92ffaee9b2b517806ab234 Mon Sep 17 00:00:00 2001
From: aristote <quentin.aristote@irif.fr>
Date: Mon, 29 Jan 2024 16:47:30 +0100
Subject: devenv: latex: set_tex_cmds only if necessary

---
 modules/devenv/languages/latex.nix | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

(limited to 'modules/devenv/languages/latex.nix')

diff --git a/modules/devenv/languages/latex.nix b/modules/devenv/languages/latex.nix
index 8880be9..e285b3b 100644
--- a/modules/devenv/languages/latex.nix
+++ b/modules/devenv/languages/latex.nix
@@ -30,14 +30,17 @@
       if output.ps.enable
       then "1"
       else "0";
-  in ''
-    set_tex_cmds('${lib.concatStringsSep " " extraFlags}');
-    $pdf_mode=${pdfMode};
-    $dvi_mode=${dviMode};
-    $ps_mode=${psMode};
+  in
+    lib.optionalString (extraFlags != []) ''
+      set_tex_cmds('${lib.concatStringsSep " " extraFlags}');
+    ''
+    + ''
+      $pdf_mode=${pdfMode};
+      $dvi_mode=${dviMode};
+      $ps_mode=${psMode};
 
-    ${extraConfig}
-  '';
+      ${extraConfig}
+    '';
   packages = cfg.packages cfg.base;
   packagesRequireShellEscape = packages ? minted;
   texlive = cfg.base.combine packages;
-- 
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