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config: add silent mode

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Accept -q as the short form of --quiet.
Suppress non-essential standard output if -q is given twice.
Treat log/silent in lvm.conf as equivalent to -qq.
Review all log_print messages and change some to
log_print_unless_silent.

When silent, the following commands still produce output:
dumpconfig, lvdisplay, lvmdiskscan, lvs, pvck, pvdisplay,
pvs, version, vgcfgrestore -l, vgdisplay, vgs.
[Needs checking.]

Non-essential messages are shifted from log level 4 to log level 5
for syslog and lvm2_log_fn purposes.
This commit is contained in:
Alasdair G Kergon
2012-08-25 20:35:48 +01:00
parent 4047e4dfb1
commit 438e0050df
45 changed files with 198 additions and 160 deletions
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5
lib/commands/toolcontext.c
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@ -144,6 +144,11 @@ static void _init_logging(struct cmd_context *cmd)
find_config_tree_int(cmd, "log/level", DEFAULT_LOGLEVEL);
init_debug(cmd->default_settings.debug);
/* Suppress all non-essential stdout? */
cmd->default_settings.silent =
find_config_tree_int(cmd, "log/silent", DEFAULT_SILENT);
init_silent(cmd->default_settings.silent);
/* Verbose level for tty output */
cmd->default_settings.verbose =
find_config_tree_int(cmd, "log/verbose", DEFAULT_VERBOSE);

1
lib/commands/toolcontext.h
View File

@ -27,6 +27,7 @@
struct config_info {
int debug;
int verbose;
int silent;
int test;
int syslog;
int activation;