From 4ba4a53209cdbd96dfba0bb8ef856680b990033e Mon Sep 17 00:00:00 2001
From: David Heinemeier Hansson <david@hey.com>
Date: Mon, 28 Sep 2026 10:25:13 +0200
Subject: [PATCH] Nudge running Hunk sessions to pick up new theme colors
 (#13518)

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
---
 bin/omarchy-theme-set      |  1 +
 bin/omarchy-theme-set-hunk | 14 ++++++++++++++
 test/cli                   | 27 +++++++++++++++++++++++++++
 3 files changed, 42 insertions(+)
 create mode 100755 bin/omarchy-theme-set-hunk

diff --git a/bin/omarchy-theme-set b/bin/omarchy-theme-set
index dff1501c..10faf872 100755
--- a/bin/omarchy-theme-set
+++ b/bin/omarchy-theme-set
@@ -424,6 +424,7 @@ post_theme_commands=(
   omarchy-restart-helix
   omarchy-theme-set-foot
   omarchy-theme-set-tmux
+  omarchy-theme-set-hunk
   omarchy-theme-set-gnome
   omarchy-theme-set-pi
   omarchy-theme-set-claude
diff --git a/bin/omarchy-theme-set-hunk b/bin/omarchy-theme-set-hunk
new file mode 100755
index 00000000..5c92fa7a
--- /dev/null
+++ b/bin/omarchy-theme-set-hunk
@@ -0,0 +1,14 @@
+#!/bin/bash
+
+# omarchy:summary=Tell running Hunk sessions to pick up the new terminal colors
+# omarchy:hidden=true
+
+# Hunk's default terminal theme re-reads the terminal palette on SIGWINCH. Terminals reload
+# their colors in parallel with this hook, so nudge once now and once after they have settled;
+# Hunk only repaints when the palette actually changed.
+
+if pgrep -x hunk >/dev/null; then
+  pkill -WINCH -x hunk
+  sleep 1
+  pkill -WINCH -x hunk
+fi
diff --git a/test/cli b/test/cli
index 1643d2db..4081921c 100755
--- a/test/cli
+++ b/test/cli
@@ -550,6 +550,33 @@ TMUX_LOG="$PI_TMPDIR/tmux.log" PATH="$FAKE_BIN:$ROOT/bin:$PATH" HOME="$PI_TMPDIR
 grep -q 'set-environment -g COLORFGBG 0;15' "$PI_TMPDIR/tmux.log" || fail "tmux sync reads mode from colors.toml"
 pass "tmux sync reads mode from colors.toml"
 
+cat >"$FAKE_BIN/pgrep" <<'EOF'
+#!/bin/bash
+[[ -n $HUNK_RUNNING ]]
+EOF
+chmod +x "$FAKE_BIN/pgrep"
+
+cat >"$FAKE_BIN/pkill" <<'EOF'
+#!/bin/bash
+echo "$*" >>"${PKILL_LOG:-/dev/null}"
+EOF
+chmod +x "$FAKE_BIN/pkill"
+
+cat >"$FAKE_BIN/sleep" <<'EOF'
+#!/bin/bash
+exit 0
+EOF
+chmod +x "$FAKE_BIN/sleep"
+
+HUNK_RUNNING=1 PKILL_LOG="$PI_TMPDIR/pkill.log" PATH="$FAKE_BIN:$ROOT/bin:$PATH" HOME="$PI_TMPDIR" "$ROOT/bin/omarchy-theme-set-hunk"
+[[ $(grep -c -- '-WINCH -x hunk' "$PI_TMPDIR/pkill.log") == "2" ]] || fail "hunk sync signals running hunk sessions"
+pass "hunk sync signals running hunk sessions"
+
+PKILL_LOG="$PI_TMPDIR/pkill-idle.log" PATH="$FAKE_BIN:$ROOT/bin:$PATH" HOME="$PI_TMPDIR" "$ROOT/bin/omarchy-theme-set-hunk"
+[[ ! -e $PI_TMPDIR/pkill-idle.log ]] || fail "hunk sync skips signaling without running hunk"
+pass "hunk sync skips signaling without running hunk"
+rm -f "$FAKE_BIN/pgrep" "$FAKE_BIN/pkill" "$FAKE_BIN/sleep"
+
 cat >"$FAKE_BIN/gsettings" <<'EOF'
 #!/bin/bash
 echo "$*" >>"${GSETTINGS_LOG:-/dev/null}"