Add support for sorting EFI variables by name when using printenv -e.
The -s flag sorts variables alphabetically before display, useful when
dealing with large numbers of variables.
Co-developed-by: Claude <noreply@anthropic.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
Series-to: concept
Series-cc: heinrich
Cover-letter:
efi: Improvements to env print -e
Printing EFI variables can be quite verbose, with many hundreds of lines
of text. Part of this is because GUIDs and hex dumps are included. It
can also be hard to find a few variables visually in an unsorted list.
This series makes the feature more user-friendly:
- Puts verbose output behind a -v flag, so that 'env print -e' behaves
more like 'env print'
- Adds a -s option to sort the list
END
Series-links: 1:15
Change the default behavior of 'printenv -e' to show only EFI variable
names. The previous verbose output is now available with the -v flag.
This makes the command more user-friendly for quick variable listing.
Update documentation to reflect the new behavior and provide examples
of all three output modes: default (names only), -n (details without
hex dump), and -v (full verbose output).
It might be nicer to use -d to enable the dump, rather than have it on
by default.
Co-developed-by: Claude <noreply@anthropic.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
current env_set_default_vars() doesn't delete
var that are not in the imported env. hashtable
removes vars that are not in the imported
env but present in the current env only if H_NOCLEAR
flag is not set.
This change is to avoid passing H_NOCLEAR flag if
specific vars are passed to env_set_default_vars()
Without this change:
Marvell>> env default boot_mode
Marvell>>
With the change:
Marvell>> env default boot_mode
WARNING: 'boot_mode' not in imported env, deleting it!
Signed-off-by: Ravi Minnikanti <rminnikanti@marvell.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
If 'env print -e' is invoked without variable name, all UEFI variables are
listed.
Describe that 'env print -e' requires CONFIG_HEXDUMP=y to print content of
UEFI variables.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
