projects / babeltrace.git / blame
| Commit | Line | Data |
|---|---|---|
| ebddaeb8 | 1 | /* |
| 0235b0db | 2 | * SPDX-License-Identifier: MIT |
| ebddaeb8 | 3 | * |
| 0235b0db | 4 | * Copyright 2019 Philippe Proulx <pproulx@efficios.com> |
| ebddaeb8 SM |
5 | */ |
| 6 | ||
| 7 | #define BT_LOG_TAG "CLI" | |
| 8 | #include "logging.h" | |
| 9 | ||
| 10 | #include "babeltrace2-log-level.h" | |
| 11 | ||
| 12 | #include <stdlib.h> | |
| 13 | ||
| 14 | #include "common/assert.h" | |
| 15 | ||
| 16 | /* | |
| 17 | * Known environment variable names for the log levels of the project's | |
| 18 | * modules. | |
| 19 | */ | |
| 20 | static const char* log_level_env_var_names[] = { | |
| 21 | "BABELTRACE_PLUGIN_CTF_METADATA_LOG_LEVEL", | |
| 22 | "BABELTRACE_PYTHON_BT2_LOG_LEVEL", | |
| 23 | NULL, | |
| 24 | }; | |
| 25 | ||
| 26 | static const int babeltrace2_default_log_level = BT_LOG_WARNING; | |
| 27 | ||
| 28 | void set_auto_log_levels(int *logging_level) | |
| 29 | { | |
| 30 | const char **env_var_name; | |
| 31 | ||
| 32 | /* Setting this is equivalent to passing --debug. */ | |
| 33 | if (getenv("BABELTRACE_DEBUG") && | |
| 34 | strcmp(getenv("BABELTRACE_DEBUG"), "1") == 0) { | |
| 35 | *logging_level = logging_level_min(*logging_level, BT_LOG_TRACE); | |
| 36 | } | |
| 37 | ||
| 38 | /* Setting this is equivalent to passing --verbose. */ | |
| 39 | if (getenv("BABELTRACE_VERBOSE") && | |
| 40 | strcmp(getenv("BABELTRACE_VERBOSE"), "1") == 0) { | |
| 41 | *logging_level = logging_level_min(*logging_level, BT_LOG_INFO); | |
| 42 | } | |
| 43 | ||
| 44 | /* | |
| 45 | * logging_level is BT_LOG_NONE at this point if no log level was | |
| 46 | * specified at all by the user. | |
| 47 | */ | |
| 48 | if (*logging_level == -1) { | |
| 49 | *logging_level = babeltrace2_default_log_level; | |
| 50 | } | |
| 51 | ||
| 52 | /* | |
| 53 | * If the user hasn't requested a specific log level for the lib | |
| 54 | * (through LIBBABELTRACE2_INIT_LOG_LEVEL), set it. | |
| 55 | */ | |
| 56 | if (!getenv("LIBBABELTRACE2_INIT_LOG_LEVEL")) { | |
| 57 | bt_logging_set_global_level(*logging_level); | |
| 58 | } | |
| 59 | ||
| 60 | /* | |
| 61 | * If the user hasn't requested a specific log level for the CLI, | |
| 62 | * (through BABELTRACE_CLI_LOG_LEVEL), set it. | |
| 63 | */ | |
| 64 | if (!getenv(ENV_BABELTRACE_CLI_LOG_LEVEL)) { | |
| 65 | bt_cli_log_level = *logging_level; | |
| 66 | } | |
| 67 | ||
| 68 | for (env_var_name = log_level_env_var_names; *env_var_name; env_var_name++) { | |
| 69 | if (!getenv(*env_var_name)) { | |
| 70 | char val[2] = { 0 }; | |
| 71 | ||
| 72 | /* | |
| 73 | * Set module's default log level if not | |
| 74 | * explicitly specified. | |
| 75 | */ | |
| 76 | val[0] = bt_log_get_letter_from_level(*logging_level); | |
| 77 | g_setenv(*env_var_name, val, 1); | |
| 78 | } | |
| 79 | } | |
| 80 | } |