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coredumpctl: Add --directory option for reading alternate journal

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In the Cockpit integration tests we hang onton the journal files
for a failed test and would like to inspect them using coredumpctl.

This commit adds the ability to specify an alternate directory
for coredumpctl to read the journal from.
This commit is contained in:
Stef Walter 2015-08-25 10:36:49 +02:00 committed by Lennart Poettering
parent 33c1c9745c
commit b73e9a024b
2 changed files with 28 additions and 5 deletions
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8
man/coredumpctl.xml
View File

@ -102,6 +102,14 @@
</para></listitem>
</varlistentry>
<varlistentry>
<term><option>-D</option> <replaceable>DIR</replaceable></term>
<term><option>--directory=</option><replaceable>DIR</replaceable></term>
<listitem><para>Use the journal files in the specified <option>DIR</option>.
</para></listitem>
</varlistentry>
<xi:include href="standard-options.xml" xpointer="help" />
<xi:include href="standard-options.xml" xpointer="version" />
<xi:include href="standard-options.xml" xpointer="no-pager" />

17
src/journal/coredumpctl.c
View File

@ -49,6 +49,7 @@ static enum {
ACTION_GDB,
} arg_action = ACTION_LIST;
static const char* arg_field = NULL;
static const char *arg_directory = NULL;
static int arg_no_pager = false;
static int arg_no_legend = false;
static int arg_one = false;
@ -131,6 +132,7 @@ static void help(void) {
" -1 Show information about most recent entry only\n"
" -F --field=FIELD List all values a certain field takes\n"
" -o --output=FILE Write output to FILE\n\n"
" -D --directory=DIR Use journal files from directory\n\n"
"Commands:\n"
" list [MATCHES...] List available coredumps (default)\n"
@ -156,13 +158,14 @@ static int parse_argv(int argc, char *argv[], Set *matches) {
{ "no-legend", no_argument, NULL, ARG_NO_LEGEND },
{ "output", required_argument, NULL, 'o' },
{ "field", required_argument, NULL, 'F' },
{ "directory", required_argument, NULL, 'D' },
{}
};
assert(argc >= 0);
assert(argv);
while ((c = getopt_long(argc, argv, "ho:F:1", options, NULL)) >= 0)
while ((c = getopt_long(argc, argv, "ho:F:1D:", options, NULL)) >= 0)
switch(c) {
case 'h':
@ -208,6 +211,10 @@ static int parse_argv(int argc, char *argv[], Set *matches) {
arg_one = true;
break;
case 'D':
arg_directory = optarg;
break;
case '?':
return -EINVAL;
@ -808,11 +815,19 @@ int main(int argc, char *argv[]) {
sigbus_install();
if (arg_directory) {
r = sd_journal_open_directory(&j, arg_directory, 0);
if (r < 0) {
log_error_errno(r, "Failed to open journals in directory: %s: %m", arg_directory);
goto end;
}
} else {
r = sd_journal_open(&j, SD_JOURNAL_LOCAL_ONLY);
if (r < 0) {
log_error_errno(r, "Failed to open journal: %m");
goto end;
}
}
/* We want full data, nothing truncated. */
sd_journal_set_data_threshold(j, 0);