mirror of
https://github.com/postgrespro/pg_probackup.git
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PGPRO-1970: Dynamically resize show table
This commit is contained in:
Arthur Zakirov
parent
576b4b06be
commit
cfb63fb2aa
235
src/show.c
235
src/show.c
@ -19,6 +19,22 @@
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#include "utils/json.h"
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typedef struct ShowBackendRow
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{
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const char *instance;
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const char *version;
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char backup_id[20];
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char recovery_time[100];
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const char *mode;
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const char *wal_mode;
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char tli[20];
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char duration[20];
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char data_bytes[20];
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char start_lsn[20];
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char stop_lsn[20];
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const char *status;
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} ShowBackendRow;
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static void show_instance_start(void);
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static void show_instance_end(void);
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@ -299,63 +315,194 @@ show_backup(time_t requested_backup_id)
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static void
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show_instance_plain(parray *backup_list, bool show_name)
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{
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#define SHOW_FIELDS_COUNT 12
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int i;
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const char *names[SHOW_FIELDS_COUNT] =
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{ "Instance", "Version", "ID", "Recovery Time",
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"Mode", "WAL", "Current/Parent TLI", "Time", "Data",
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"Start LSN", "Stop LSN", "Status" };
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const char *field_formats[SHOW_FIELDS_COUNT] =
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{ " %-*s ", " %-*s ", " %-*s ", " %-*s ",
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" %-*s ", " %-*s ", " %-*s ", " %*s ", " %*s ",
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" %*s ", " %*s ", " %-*s "};
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uint32 widths[SHOW_FIELDS_COUNT];
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uint32 widths_sum = 0;
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ShowBackendRow *rows;
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for (i = 0; i < SHOW_FIELDS_COUNT; i++)
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widths[i] = strlen(names[i]);
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rows = (ShowBackendRow *) palloc(parray_num(backup_list) *
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sizeof(ShowBackendRow));
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/*
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* Fill row values and calculate maximum width of each field.
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*/
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for (i = 0; i < parray_num(backup_list); i++)
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{
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pgBackup *backup = parray_get(backup_list, i);
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ShowBackendRow *row = &rows[i];
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int cur = 0;
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/* Instance */
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row->instance = instance_name;
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widths[cur] = Max(widths[cur], strlen(row->instance));
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cur++;
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/* Version */
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row->version = backup->server_version[0] ?
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backup->server_version : "----";
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widths[cur] = Max(widths[cur], strlen(row->version));
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cur++;
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/* ID */
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snprintf(row->backup_id, lengthof(row->backup_id), "%s",
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base36enc(backup->start_time));
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widths[cur] = Max(widths[cur], strlen(row->backup_id));
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cur++;
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/* Recovery Time */
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if (backup->recovery_time != (time_t) 0)
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time2iso(row->recovery_time, lengthof(row->recovery_time),
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backup->recovery_time);
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else
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StrNCpy(row->recovery_time, "----", 4);
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widths[cur] = Max(widths[cur], strlen(row->recovery_time));
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cur++;
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/* Mode */
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row->mode = pgBackupGetBackupMode(backup);
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widths[cur] = Max(widths[cur], strlen(row->mode));
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cur++;
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/* WAL */
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row->wal_mode = backup->stream ? "STREAM": "ARCHIVE";
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widths[cur] = Max(widths[cur], strlen(row->wal_mode));
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cur++;
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/* Current/Parent TLI */
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snprintf(row->tli, lengthof(row->tli), "%u / %u",
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backup->tli, get_parent_tli(backup->tli));
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widths[cur] = Max(widths[cur], strlen(row->tli));
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cur++;
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/* Time */
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if (backup->end_time != (time_t) 0)
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snprintf(row->duration, lengthof(row->duration), "%.*lfs", 0,
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difftime(backup->end_time, backup->start_time));
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else
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StrNCpy(row->duration, "----", 4);
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widths[cur] = Max(widths[cur], strlen(row->duration));
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cur++;
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/* Data */
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pretty_size(backup->data_bytes, row->data_bytes,
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lengthof(row->data_bytes));
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widths[cur] = Max(widths[cur], strlen(row->data_bytes));
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cur++;
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/* Start LSN */
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snprintf(row->start_lsn, lengthof(row->start_lsn), "%X/%X",
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(uint32) (backup->start_lsn >> 32),
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(uint32) backup->start_lsn);
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widths[cur] = Max(widths[cur], strlen(row->start_lsn));
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cur++;
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/* Stop LSN */
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snprintf(row->stop_lsn, lengthof(row->stop_lsn), "%X/%X",
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(uint32) (backup->stop_lsn >> 32),
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(uint32) backup->stop_lsn);
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widths[cur] = Max(widths[cur], strlen(row->stop_lsn));
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cur++;
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/* Status */
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row->status = status2str(backup->status);
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widths[cur] = Max(widths[cur], strlen(row->status));
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}
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for (i = 0; i < SHOW_FIELDS_COUNT; i++)
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widths_sum += widths[i] + 2 /* two space */;
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if (show_name)
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appendPQExpBuffer(&show_buf, "\nBACKUP INSTANCE '%s'\n", instance_name);
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/* if you add new fields here, fix the header */
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/* show header */
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appendPQExpBufferStr(&show_buf,
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"============================================================================================================================================\n");
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appendPQExpBufferStr(&show_buf,
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" Instance Version ID Recovery time Mode WAL Current/Parent TLI Time Data Start LSN Stop LSN Status \n");
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appendPQExpBufferStr(&show_buf,
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"============================================================================================================================================\n");
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/*
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* Print header.
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*/
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for (i = 0; i < widths_sum; i++)
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appendPQExpBufferChar(&show_buf, '=');
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appendPQExpBufferChar(&show_buf, '\n');
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for (i = 0; i < SHOW_FIELDS_COUNT; i++)
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{
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appendPQExpBuffer(&show_buf, field_formats[i], widths[i], names[i]);
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}
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appendPQExpBufferChar(&show_buf, '\n');
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for (i = 0; i < widths_sum; i++)
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appendPQExpBufferChar(&show_buf, '=');
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appendPQExpBufferChar(&show_buf, '\n');
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/*
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* Print values.
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*/
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for (i = 0; i < parray_num(backup_list); i++)
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{
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pgBackup *backup = parray_get(backup_list, i);
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TimeLineID parent_tli;
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char timestamp[100] = "----";
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char duration[20] = "----";
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char data_bytes_str[10] = "----";
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ShowBackendRow *row = &rows[i];
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int cur = 0;
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if (backup->recovery_time != (time_t) 0)
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time2iso(timestamp, lengthof(timestamp), backup->recovery_time);
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if (backup->end_time != (time_t) 0)
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snprintf(duration, lengthof(duration), "%.*lfs", 0,
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difftime(backup->end_time, backup->start_time));
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appendPQExpBuffer(&show_buf, field_formats[cur], widths[cur],
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row->instance);
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cur++;
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/*
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* Calculate Data field, in the case of full backup this shows the
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* total amount of data. For an differential backup, this size is only
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* the difference of data accumulated.
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*/
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pretty_size(backup->data_bytes, data_bytes_str,
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lengthof(data_bytes_str));
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appendPQExpBuffer(&show_buf, field_formats[cur], widths[cur],
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row->version);
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cur++;
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/* Get parent timeline before printing */
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parent_tli = get_parent_tli(backup->tli);
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appendPQExpBuffer(&show_buf, field_formats[cur], widths[cur],
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row->backup_id);
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cur++;
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appendPQExpBuffer(&show_buf,
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" %-11s %-8s %-6s %-22s %-6s %-7s %3d / %-3d %5s %6s %2X/%-8X %2X/%-8X %-8s\n",
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instance_name,
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(backup->server_version[0] ? backup->server_version : "----"),
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base36enc(backup->start_time),
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timestamp,
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pgBackupGetBackupMode(backup),
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backup->stream ? "STREAM": "ARCHIVE",
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backup->tli,
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parent_tli,
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duration,
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data_bytes_str,
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(uint32) (backup->start_lsn >> 32),
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(uint32) backup->start_lsn,
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(uint32) (backup->stop_lsn >> 32),
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(uint32) backup->stop_lsn,
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status2str(backup->status));
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appendPQExpBuffer(&show_buf, field_formats[cur], widths[cur],
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row->recovery_time);
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cur++;
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appendPQExpBuffer(&show_buf, field_formats[cur], widths[cur],
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row->mode);
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cur++;
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appendPQExpBuffer(&show_buf, field_formats[cur], widths[cur],
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row->wal_mode);
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cur++;
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appendPQExpBuffer(&show_buf, field_formats[cur], widths[cur],
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row->tli);
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cur++;
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appendPQExpBuffer(&show_buf, field_formats[cur], widths[cur],
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row->duration);
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cur++;
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appendPQExpBuffer(&show_buf, field_formats[cur], widths[cur],
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row->data_bytes);
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cur++;
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appendPQExpBuffer(&show_buf, field_formats[cur], widths[cur],
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row->start_lsn);
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cur++;
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appendPQExpBuffer(&show_buf, field_formats[cur], widths[cur],
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row->stop_lsn);
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cur++;
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appendPQExpBuffer(&show_buf, field_formats[cur], widths[cur],
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row->status);
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cur++;
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appendPQExpBufferChar(&show_buf, '\n');
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}
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pfree(rows);
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}
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/*
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