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fel: support updating the caption for "dialog --gauge"

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This patch adds an "echo-gauge" command that is intended for use with
sunxi-fel's output piped into the dialog utility. "echo-gauge" will
output its string argument in a way that updates (i.e. overwrites)
the prompt text that dialog displays, so it's possible to change that
inbetween file transfers from sunxi-fel.

Example:
	sunxi-fel uboot ${UBOOT} \
		echo-gauge "Uploading kernel (1/2)" \
		write-with-gauge 0x42000000 ${KERNEL} \
		write 0x43100000 ${SCRIPT} \
		echo-gauge "Uploading rootfs (2/2)" \
		write-with-gauge 0x44000000 ${ROOTFS} \
		| dialog --gauge "" 6 70

Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>
Reviewed-by: Siarhei Siamashka <siarhei.siamashka@gmail.com>
This commit is contained in:
Bernhard Nortmann 2015-11-27 15:13:48 +01:00 committed by Siarhei Siamashka
parent 6712eb84a0
commit 7755022252
1 changed files with 5 additions and 0 deletions
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fel.c
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@ -1306,6 +1306,7 @@ int main(int argc, char **argv)
" multi[write]-with-gauge ... like their \"write-with-*\" counterpart,\n"
" multi[write]-with-xgauge ... but following the 'multi' syntax:\n"
" <#> addr file [addr file [...]]\n"
" echo-gauge \"some text\" Update prompt/caption for gauge output\n"
" ver[sion] Show BROM version\n"
" clear address length Clear memory\n"
" fill address length value Fill memory\n"
@ -1393,6 +1394,10 @@ int main(int argc, char **argv)
size_t count = strtoul(argv[2], NULL, 0); /* file count */
skip = 2 + 2 * file_upload(handle, count, argc - 3,
argv + 3, progress_gauge_xxx);
} else if ((strcmp(argv[1], "echo-gauge") == 0) && argc > 2) {
skip = 2;
printf("XXX\n0\n%s\nXXX\n", argv[2]);
fflush(stdout);
} else if (strcmp(argv[1], "read") == 0 && argc > 4) {
size_t size = strtoul(argv[3], NULL, 0);
void *buf = malloc(size);