The "env info" can be use for test with -d and -p parameter, in scripting case the output of the command is not needed.
This patch allows to deactivate this output with a new option "-q".
For example, we can save the environment if default environment is used and persistent storage is managed with: if env info -p -d -q; then env save; fi
Without the quiet option, I have the unnecessary traces First boot: Default environment is used Environment can be persisted Saving Environment to EXT4... File System is consistent
Next boot: Environment was loaded from persistent storage Environment can be persisted
Signed-off-by: Patrick Delaunay patrick.delaunay@st.com ---
cmd/Kconfig | 1 + cmd/nvedit.c | 26 +++++++++++++++++++------- 2 files changed, 20 insertions(+), 7 deletions(-)
diff --git a/cmd/Kconfig b/cmd/Kconfig index b1a1cbcab2..458dbcedac 100644 --- a/cmd/Kconfig +++ b/cmd/Kconfig @@ -567,6 +567,7 @@ config CMD_NVEDIT_INFO This command can be optionally used for evaluation in scripts: [-d] : evaluate whether default environment is used [-p] : evaluate whether environment can be persisted + [-q] : quiet output The result of multiple evaluations will be combined with AND.
endmenu diff --git a/cmd/nvedit.c b/cmd/nvedit.c index 81d94cd193..aaa032cd96 100644 --- a/cmd/nvedit.c +++ b/cmd/nvedit.c @@ -1219,12 +1219,15 @@ static int print_env_info(void) * env info - display environment information * env info [-d] - evaluate whether default environment is used * env info [-p] - evaluate whether environment can be persisted + * Add [-q] - quiet mode, use only for command result, for test by example: + * test env info -p -d -q */ static int do_env_info(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { int eval_flags = 0; int eval_results = 0; + bool quiet = false;
/* display environment information */ if (argc <= 1) @@ -1242,6 +1245,9 @@ static int do_env_info(cmd_tbl_t *cmdtp, int flag, case 'p': eval_flags |= ENV_INFO_IS_PERSISTED; break; + case 'q': + quiet = true; + break; default: return CMD_RET_USAGE; } @@ -1251,20 +1257,24 @@ static int do_env_info(cmd_tbl_t *cmdtp, int flag, /* evaluate whether default environment is used */ if (eval_flags & ENV_INFO_IS_DEFAULT) { if (gd->flags & GD_FLG_ENV_DEFAULT) { - printf("Default environment is used\n"); + if (!quiet) + printf("Default environment is used\n"); eval_results |= ENV_INFO_IS_DEFAULT; } else { - printf("Environment was loaded from persistent storage\n"); + if (!quiet) + printf("Environment was loaded from persistent storage\n"); } }
/* evaluate whether environment can be persisted */ if (eval_flags & ENV_INFO_IS_PERSISTED) { #if defined(CONFIG_CMD_SAVEENV) && !defined(CONFIG_ENV_IS_NOWHERE) - printf("Environment can be persisted\n"); + if (!quiet) + printf("Environment can be persisted\n"); eval_results |= ENV_INFO_IS_PERSISTED; #else - printf("Environment cannot be persisted\n"); + if (!quiet) + printf("Environment cannot be persisted\n"); #endif }
@@ -1321,7 +1331,7 @@ static cmd_tbl_t cmd_env_sub[] = { U_BOOT_CMD_MKENT(import, 5, 0, do_env_import, "", ""), #endif #if defined(CONFIG_CMD_NVEDIT_INFO) - U_BOOT_CMD_MKENT(info, 2, 0, do_env_info, "", ""), + U_BOOT_CMD_MKENT(info, 3, 0, do_env_info, "", ""), #endif U_BOOT_CMD_MKENT(print, CONFIG_SYS_MAXARGS, 1, do_env_print, "", ""), #if defined(CONFIG_CMD_RUN) @@ -1400,8 +1410,10 @@ static char env_help_text[] = #endif #if defined(CONFIG_CMD_NVEDIT_INFO) "env info - display environment information\n" - "env info [-d] - whether default environment is used\n" - "env info [-p] - whether environment can be persisted\n" + "env info [-d] [-p] [-q] - evaluate environment information\n" + " "-d": default environment is used\n" + " "-p": environment can be persisted\n" + " "-q": quiet output\n" #endif "env print [-a | name ...] - print environment\n" #if defined(CONFIG_CMD_NVEDIT_EFI)