shaba/systemd-stable
1
1
Fork 0
mirror of https://github.com/systemd/systemd-stable.git synced 2024-12-23 17:34:00 +03:00
Code

udevadm: add a dash of color to "udevadm info"

Browse Source 
Let's make it easier to discern the "header" of device records from the
"body", i.e. non-property data from property data, by using some
conservative coloring.
This commit is contained in:
Lennart Poettering 2022-04-04 16:00:25 +02:00
parent a0e902598c
commit 13005c8f2c
1 changed files with 27 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

41
src/udev/udevadm-info.c
View File

@ -22,9 +22,10 @@
#include "static-destruct.h"
#include "string-table.h"
#include "string-util.h"
#include "terminal-util.h"
#include "udev-util.h"
#include "udevadm-util.h"
#include "udevadm.h"
#include "udevadm-util.h"
typedef enum ActionType {
ACTION_QUERY,
@ -184,47 +185,59 @@ static int print_record(sd_device *device) {
* uevents, not for those synthesized from database entries.
*
* We don't show sysattrs here, because they can be expensive and potentially issue expensive driver
* IO. */
* IO.
*
* Coloring: let's be conservative with coloring. Let's use it to group related fields. Right now:
*
* • white for fields that give the device a name
* • green for fields that categorize the device into subsystem/devtype and similar
* • cyan for fields about associated device nodes/symlinks/network interfaces and such
* • magenta for block device diskseq
* • yellow for driver info
* • no color for regular properties */
assert_se(sd_device_get_devpath(device, &str) >= 0);
printf("P: %s\n", str);
printf("P: %s%s%s\n", ansi_highlight_white(), str, ansi_normal());
if (sd_device_get_sysname(device, &str) >= 0)
printf("M: %s\n", str);
printf("M: %s%s%s\n", ansi_highlight_white(), str, ansi_normal());
if (sd_device_get_sysnum(device, &str) >= 0)
printf("R: %s\n", str);
printf("R: %s%s%s\n", ansi_highlight_white(), str, ansi_normal());
if (sd_device_get_subsystem(device, &subsys) >= 0)
printf("U: %s\n", subsys);
printf("U: %s%s%s\n", ansi_highlight_green(), subsys, ansi_normal());
if (sd_device_get_devtype(device, &str) >= 0)
printf("T: %s\n", str);
printf("T: %s%s%s\n", ansi_highlight_green(), str, ansi_normal());
if (sd_device_get_devnum(device, &devnum) >= 0)
printf("D: %c %u:%u\n", streq_ptr(subsys, "block") ? 'b' : 'c', major(devnum), minor(devnum));
printf("D: %s%c %u:%u%s\n",
ansi_highlight_cyan(),
streq_ptr(subsys, "block") ? 'b' : 'c', major(devnum), minor(devnum),
ansi_normal());
if (sd_device_get_ifindex(device, &ifi) >= 0)
printf("I: %i\n", ifi);
printf("I: %s%i%s\n", ansi_highlight_cyan(), ifi, ansi_normal());
if (sd_device_get_devname(device, &str) >= 0) {
assert_se(val = path_startswith(str, "/dev/"));
printf("N: %s\n", val);
printf("N: %s%s%s\n", ansi_highlight_cyan(), val, ansi_normal());
if (device_get_devlink_priority(device, &i) >= 0)
printf("L: %i\n", i);
printf("L: %s%i%s\n", ansi_highlight_cyan(), i, ansi_normal());
FOREACH_DEVICE_DEVLINK(device, str) {
assert_se(val = path_startswith(str, "/dev/"));
printf("S: %s\n", val);
printf("S: %s%s%s\n", ansi_highlight_cyan(), val, ansi_normal());
}
}
if (sd_device_get_diskseq(device, &q) >= 0)
printf("Q: %" PRIu64 "\n", q);
printf("Q: %s%" PRIu64 "%s\n", ansi_highlight_magenta(), q, ansi_normal());
if (sd_device_get_driver(device, &str) >= 0)
printf("V: %s\n", str);
printf("V: %s%s%s\n", ansi_highlight_yellow4(), str, ansi_normal());
FOREACH_DEVICE_PROPERTY(device, str, val)
printf("E: %s=%s\n", str, val);