X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fjournal%2Fjournalctl.c;h=e9810c9a3d1cf7b9bb18af0a592fb5563d2ae83c;hb=d4943dc7559dff51d4d3bb737232b9328d6726e1;hp=65b3bd5a86f44abd31fd152b35dbb75702a71a33;hpb=cbdca8525b4f36297cb9e5cb090a9648763ed1bf;p=elogind.git

diff --git a/src/journal/journalctl.c b/src/journal/journalctl.c
index 65b3bd5a8..e9810c9a3 100644
--- a/src/journal/journalctl.c
+++ b/src/journal/journalctl.c
@@ -40,6 +40,7 @@
 #include "pager.h"
 #include "logs-show.h"
 #include "strv.h"
+#include "journal-internal.h"
 
 static OutputMode arg_output = OUTPUT_SHORT;
 static bool arg_follow = false;
@@ -48,6 +49,7 @@ static bool arg_no_pager = false;
 static int arg_lines = -1;
 static bool arg_no_tail = false;
 static bool arg_new_id128 = false;
+static bool arg_print_header = false;
 static bool arg_quiet = false;
 static bool arg_local = false;
 static bool arg_this_boot = false;
@@ -70,6 +72,7 @@ static int help(void) {
                "  -l --local          Only local entries\n"
                "  -b --this-boot      Show data only from current boot\n"
                "  -D --directory=PATH Show journal files from directory\n"
+               "     --header         Show journal header information\n"
                "     --new-id128      Generate a new 128 Bit id\n",
                program_invocation_short_name);
 
@@ -82,7 +85,8 @@ static int parse_argv(int argc, char *argv[]) {
                 ARG_VERSION = 0x100,
                 ARG_NO_PAGER,
                 ARG_NO_TAIL,
-                ARG_NEW_ID128
+                ARG_NEW_ID128,
+                ARG_HEADER
         };
 
         static const struct option options[] = {
@@ -99,6 +103,7 @@ static int parse_argv(int argc, char *argv[]) {
                 { "local",     no_argument,       NULL, 'l'           },
                 { "this-boot", no_argument,       NULL, 'b'           },
                 { "directory", required_argument, NULL, 'D'           },
+                { "header",    no_argument,       NULL, ARG_HEADER    },
                 { NULL,        0,                 NULL, 0             }
         };
 
@@ -174,6 +179,10 @@ static int parse_argv(int argc, char *argv[]) {
                         arg_directory = optarg;
                         break;
 
+                case ARG_HEADER:
+                        arg_print_header = true;
+                        break;
+
                 case '?':
                         return -EINVAL;
 
@@ -303,6 +312,7 @@ int main(int argc, char *argv[]) {
         bool need_seek = false;
         sd_id128_t previous_boot_id;
         bool previous_boot_id_valid = false;
+        bool have_pager;
 
         log_parse_environment();
         log_open();
@@ -331,6 +341,12 @@ int main(int argc, char *argv[]) {
                 goto finish;
         }
 
+        if (arg_print_header) {
+                journal_print_header(j);
+                r = 0;
+                goto finish;
+        }
+
         r = add_this_boot(j);
         if (r < 0)
                 goto finish;
@@ -382,7 +398,8 @@ int main(int argc, char *argv[]) {
                 goto finish;
         }
 
-        if (!arg_no_pager && !arg_follow) {
+        have_pager = !arg_no_pager && !arg_follow;
+        if (have_pager) {
                 columns();
                 pager_open();
         }
@@ -395,6 +412,8 @@ int main(int argc, char *argv[]) {
         for (;;) {
                 for (;;) {
                         sd_id128_t boot_id;
+                        int flags = (arg_show_all*OUTPUT_SHOW_ALL |
+                                     have_pager*OUTPUT_FULL_WIDTH);
 
                         if (need_seek) {
                                 r = sd_journal_next(j);
@@ -419,7 +438,7 @@ int main(int argc, char *argv[]) {
 
                         line ++;
 
-                        r = output_journal(j, arg_output, line, 0, arg_show_all);
+                        r = output_journal(j, arg_output, line, 0, flags);
                         if (r < 0)
                                 goto finish;