From 281e443d731dc5cfca7b14cf7ba32d4375e2bc22 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=A9r=C3=B4me=20Benoit?= <jerome.benoit@sap.com>
Date: Sun, 18 Jan 2026 21:54:43 +0100
Subject: [PATCH 1/3] fix(nix): make shell completion installation resilient to
 failures

---
 nix/opencode.nix | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/nix/opencode.nix b/nix/opencode.nix
index 23d9fbe34e0..749ab292de7 100644
--- a/nix/opencode.nix
+++ b/nix/opencode.nix
@@ -68,10 +68,18 @@ stdenvNoCC.mkDerivation (finalAttrs: {
   '';
 
   postInstall = lib.optionalString (stdenvNoCC.buildPlatform.canExecute stdenvNoCC.hostPlatform) ''
+    completion_bash=$($out/bin/opencode completion || true)
     # trick yargs into also generating zsh completions
-    installShellCompletion --cmd opencode \
-      --bash <($out/bin/opencode completion) \
-      --zsh <(SHELL=/bin/zsh $out/bin/opencode completion)
+    completion_zsh=$(SHELL=/bin/zsh $out/bin/opencode completion || true)
+    if [ -n "$completion_bash" ]; then
+      installShellCompletion --cmd opencode \
+        --bash <(echo "$completion_bash")
+    fi
+
+    if [ -n "$completion_zsh" ]; then
+      installShellCompletion --cmd opencode \
+        --zsh <(echo "$completion_zsh")
+    fi
   '';
 
   nativeInstallCheckInputs = [

From 0e1b742872ade7a06fc4ed88a829e7eeafa9f457 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=A9r=C3=B4me=20Benoit?= <jerome.benoit@sap.com>
Date: Sun, 18 Jan 2026 22:11:04 +0100
Subject: [PATCH 2/3] refactor: remove unnecessary blank line in nix shell
 completion installation
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: Jérôme Benoit <jerome.benoit@sap.com>
---
 nix/opencode.nix | 1 -
 1 file changed, 1 deletion(-)

diff --git a/nix/opencode.nix b/nix/opencode.nix
index 749ab292de7..9474f41d4f2 100644
--- a/nix/opencode.nix
+++ b/nix/opencode.nix
@@ -75,7 +75,6 @@ stdenvNoCC.mkDerivation (finalAttrs: {
       installShellCompletion --cmd opencode \
         --bash <(echo "$completion_bash")
     fi
-
     if [ -n "$completion_zsh" ]; then
       installShellCompletion --cmd opencode \
         --zsh <(echo "$completion_zsh")

From 2c9c5e071fb7a47bf8a79c524d8cd5b2316d5284 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=A9r=C3=B4me=20Benoit?= <jerome.benoit@sap.com>
Date: Mon, 19 Jan 2026 02:53:18 +0100
Subject: [PATCH 3/3] fix(nix): add warning messages when shell completion
 generation fails

---
 nix/opencode.nix | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/nix/opencode.nix b/nix/opencode.nix
index 9474f41d4f2..a0c7dcfd593 100644
--- a/nix/opencode.nix
+++ b/nix/opencode.nix
@@ -69,15 +69,20 @@ stdenvNoCC.mkDerivation (finalAttrs: {
 
   postInstall = lib.optionalString (stdenvNoCC.buildPlatform.canExecute stdenvNoCC.hostPlatform) ''
     completion_bash=$($out/bin/opencode completion || true)
-    # trick yargs into also generating zsh completions
-    completion_zsh=$(SHELL=/bin/zsh $out/bin/opencode completion || true)
     if [ -n "$completion_bash" ]; then
       installShellCompletion --cmd opencode \
         --bash <(echo "$completion_bash")
+    else
+      echo >&2 "[1;31mwarning: bash completion generation failed or produced no output[0m"
     fi
+
+    # trick yargs into also generating zsh completions
+    completion_zsh=$(SHELL=/bin/zsh $out/bin/opencode completion || true)
     if [ -n "$completion_zsh" ]; then
       installShellCompletion --cmd opencode \
         --zsh <(echo "$completion_zsh")
+    else
+      echo >&2 "[1;31mwarning: zsh completion generation failed or produced no output[0m"
     fi
   '';