[systemd-devel] [PATCH 05/17] journalctl: no color for --reboot-- when not on tty

[Zbigniew Jędrzejewski-Szmek]

---
 src/journal/journalctl.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/journal/journalctl.c b/src/journal/journalctl.c
index a389543..d89684b 100644
--- a/src/journal/journalctl.c
+++ b/src/journal/journalctl.c
@@ -1334,12 +1334,14 @@ int main(int argc, char *argv[]) {
 
                         if (!arg_merge) {
                                 sd_id128_t boot_id;
+                                const char *color_on = on_tty() ? ANSI_HIGHLIGHT_ON : "",
+                                           *color_off = on_tty() ? ANSI_HIGHLIGHT_OFF : "";
 
                                 r = sd_journal_get_monotonic_usec(j, NULL, &boot_id);
                                 if (r >= 0) {
                                         if (previous_boot_id_valid &&
                                             !sd_id128_equal(boot_id, previous_boot_id))
-                                                printf(ANSI_HIGHLIGHT_ON "-- Reboot --" ANSI_HIGHLIGHT_OFF "\n");
+                                                printf("%s-- Reboot --%s\n", color_on, color_off);
 
                                         previous_boot_id = boot_id;
                                         previous_boot_id_valid = true;
-- 
1.8.2.562.g931e949