1 files changed, 90 insertions, 0 deletions
diff --git a/src/analyze/analyze-timestamp.c b/src/analyze/analyze-timestamp.c
new file mode 100644
index 0000000..97de438
--- /dev/null
+++ b/src/analyze/analyze-timestamp.c
@@ -0,0 +1,90 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include "analyze.h"
+#include "analyze-timestamp.h"
+#include "format-table.h"
+#include "terminal-util.h"
+
+static int test_timestamp_one(const char *p) {
+        _cleanup_(table_unrefp) Table *table = NULL;
+        TableCell *cell;
+        usec_t usec;
+        int r;
+
+        r = parse_timestamp(p, &usec);
+        if (r < 0) {
+                log_error_errno(r, "Failed to parse \"%s\": %m", p);
+                time_parsing_hint(p, /* calendar= */ true, /* timestamp= */ false, /* timespan= */ true);
+                return r;
+        }
+
+        table = table_new_vertical();
+        if (!table)
+                return log_oom();
+
+        assert_se(cell = table_get_cell(table, 0, 0));
+        r = table_set_ellipsize_percent(table, cell, 100);
+        if (r < 0)
+                return r;
+
+        assert_se(cell = table_get_cell(table, 0, 1));
+        r = table_set_ellipsize_percent(table, cell, 100);
+        if (r < 0)
+                return r;
+
+        r = table_add_many(table,
+                           TABLE_FIELD, "Original form",
+                           TABLE_STRING, p,
+                           TABLE_FIELD, "Normalized form",
+                           TABLE_TIMESTAMP, usec,
+                           TABLE_SET_COLOR, ansi_highlight_blue());
+        if (r < 0)
+                return table_log_add_error(r);
+
+        if (!in_utc_timezone()) {
+                r = table_add_many(table,
+                                   TABLE_FIELD, "(in UTC)",
+                                   TABLE_TIMESTAMP_UTC, usec);
+                if (r < 0)
+                        return table_log_add_error(r);
+        }
+
+        r = table_add_cell(table, NULL, TABLE_FIELD, "UNIX seconds");
+        if (r < 0)
+                return table_log_add_error(r);
+
+        if (usec % USEC_PER_SEC == 0)
+                r = table_add_cell_stringf(table, NULL, "@%"PRI_USEC,
+                                           usec / USEC_PER_SEC);
+        else
+                r = table_add_cell_stringf(table, NULL, "@%"PRI_USEC".%06"PRI_USEC"",
+                                           usec / USEC_PER_SEC,
+                                           usec % USEC_PER_SEC);
+        if (r < 0)
+                return r;
+
+        r = table_add_many(table,
+                           TABLE_FIELD, "From now",
+                           TABLE_TIMESTAMP_RELATIVE, usec);
+        if (r < 0)
+                return table_log_add_error(r);
+
+        return table_print(table, NULL);
+}
+
+int verb_timestamp(int argc, char *argv[], void *userdata) {
+        int r = 0;
+
+        STRV_FOREACH(p, strv_skip(argv, 1)) {
+                int k;
+
+                k = test_timestamp_one(*p);
+                if (r == 0 && k < 0)
+                        r = k;
+
+                if (p[1])
+                        putchar('\n');
+        }
+
+        return r;
+}