From 6a695bb534c1c832b1293917bad4402b503a9695 Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Wed, 4 Apr 2012 01:00:09 +0200
Subject: [PATCH] journal: don't export the boot id twice per entry (cherry
 picked from commit
 112301ae4433b59ae602556f455c4065bddb6ad6)

---
 src/logs-show.c |   16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/src/logs-show.c b/src/logs-show.c
index 158223f..a622035 100644
--- a/src/logs-show.c
+++ b/src/logs-show.c
@@ -350,7 +350,7 @@ static int output_export(sd_journal *j, unsigned line, unsigned n_columns, bool
         printf("__CURSOR=%s\n"
                "__REALTIME_TIMESTAMP=%llu\n"
                "__MONOTONIC_TIMESTAMP=%llu\n"
-               "__BOOT_ID=%s\n",
+               "_BOOT_ID=%s\n",
                cursor,
                (unsigned long long) realtime,
                (unsigned long long) monotonic,
@@ -360,6 +360,12 @@ static int output_export(sd_journal *j, unsigned line, unsigned n_columns, bool
 
         SD_JOURNAL_FOREACH_DATA(j, data, length) {
 
+                /* We already printed the boot id, from the data in
+                 * the header, hence let's suppress it here */
+                if (length >= 9 &&
+                    memcmp(data, "_BOOT_ID=", 9) == 0)
+                        continue;
+
                 if (contains_unprintable(data, length)) {
                         const char *c;
                         uint64_t le64;
@@ -462,7 +468,7 @@ static int output_json(sd_journal *j, unsigned line, unsigned n_columns, bool sh
                "\t\"__CURSOR\" : \"%s\",\n"
                "\t\"__REALTIME_TIMESTAMP\" : \"%llu\",\n"
                "\t\"__MONOTONIC_TIMESTAMP\" : \"%llu\",\n"
-               "\t\"__BOOT_ID\" : \"%s\"",
+               "\t\"_BOOT_ID\" : \"%s\"",
                cursor,
                (unsigned long long) realtime,
                (unsigned long long) monotonic,
@@ -473,6 +479,12 @@ static int output_json(sd_journal *j, unsigned line, unsigned n_columns, bool sh
         SD_JOURNAL_FOREACH_DATA(j, data, length) {
                 const char *c;
 
+                /* We already printed the boot id, from the data in
+                 * the header, hence let's suppress it here */
+                if (length >= 9 &&
+                    memcmp(data, "_BOOT_ID=", 9) == 0)
+                        continue;
+
                 c = memchr(data, '=', length);
                 if (!c) {
                         log_error("Invalid field.");