From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 3794D459D7; Thu, 19 Sep 2024 17:08:20 +0200 (CEST) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 48CFA433C1; Thu, 19 Sep 2024 17:06:38 +0200 (CEST) Received: from mail-pg1-f175.google.com (mail-pg1-f175.google.com [209.85.215.175]) by mails.dpdk.org (Postfix) with ESMTP id E65CA433A3 for ; Thu, 19 Sep 2024 17:06:31 +0200 (CEST) Received: by mail-pg1-f175.google.com with SMTP id 41be03b00d2f7-6e7b121be30so689631a12.1 for ; Thu, 19 Sep 2024 08:06:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=networkplumber-org.20230601.gappssmtp.com; s=20230601; t=1726758391; x=1727363191; darn=dpdk.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=A67zJHlmj5y1HXSuG1hOh2ddpgeTFki1nMbA8mHcipM=; b=zmTQd3Km2lWUXb9orsuEnByVIIYoYa5MJqWD2apUYblW3WRQaP6TSN279Nquyz08xp VdRGCuR3XL6O+in1LDW/ugT8hvLIx0IbGJOiabL2lUVjyoSAasKq/lljKQTUZTR2TViY LQfTJTDkZj3iMe4PbI51S0udbK9fjiFs2ByGTcFBDZvFCsY1jj4/5SIvx6s4jrwl5xbC 7J1Paz7NroxjI14GIUeOm9jcTXM7WJnPapTGey8O6MIAhNtB7Te8yZO6KRc0hoaLOywz 1FlS0ZbG3vgLm6S/unNb+iv3vsD3V7DnO4/DVajBOka/CmbNGiprSwyZ5jtT2pMqHhiL ibzA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1726758391; x=1727363191; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=A67zJHlmj5y1HXSuG1hOh2ddpgeTFki1nMbA8mHcipM=; b=Avghrz0G++uLKyXgWNE6oajREitk1iTaMQ0OovrrAkLPHlQLbOH8bu9VVjMe3lu2zY YdB2NNa0iRAHhzY9Dlu7xj1DR8fBecYja8RCxjjasb5CnC0XMQm9Z5Elo3mH6UHpGBnw bQMViEyxnzPny+mxntdnS/+mhNELm5Boxssa29NR+uCr0cJVp0sJfS8gLm8wiYLqilgI k634MnBfwQ0OEdfV9SAQlfhJAlyhz4a8KeaSYZYTGHlBHxUxCY/cJ2PayS7Nv+ljgBFb 8WlRRPkFLHFJYs3BI0Pd/64N7lLfjw73MyFb+JQxjp4eCttjuPuMJ6LRNTqkeqekztMq PWnA== X-Gm-Message-State: AOJu0Yz1pQleQWA1aDgurLvLHB3STz4OBgPhoIXJP5h3cYyB0BXuaPCH lKN1OxjpBmtBcQeil/H2XEordgVINhZar9Pl6Jvm2MsxnrZrnHwkCmaN7Owzi8jQloklPN1JORa v X-Google-Smtp-Source: AGHT+IEUB2XLqhm4DxcWlMv3nrmPhSLVjQ1bU3L7nipPn5cpP3D8PMS5k7UX7M3YD4u4OOpedm2pMw== X-Received: by 2002:a05:6a20:c70e:b0:1cf:4748:8868 with SMTP id adf61e73a8af0-1d112b60b6dmr36792997637.16.1726758391032; Thu, 19 Sep 2024 08:06:31 -0700 (PDT) Received: from hermes.local (204-195-96-226.wavecable.com. [204.195.96.226]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-71944adfd3dsm8620841b3a.92.2024.09.19.08.06.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 19 Sep 2024 08:06:30 -0700 (PDT) From: Stephen Hemminger To: dev@dpdk.org Cc: Stephen Hemminger , =?UTF-8?q?Morten=20Br=C3=B8rup?= , Bruce Richardson , Chengwen Feng Subject: [PATCH v25 14/15] log: colorize log output Date: Thu, 19 Sep 2024 08:04:20 -0700 Message-ID: <20240919150609.5281-15-stephen@networkplumber.org> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240919150609.5281-1-stephen@networkplumber.org> References: <20200814173441.23086-1-stephen@networkplumber.org> <20240919150609.5281-1-stephen@networkplumber.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Like dmesg, colorize the log output (unless redirected to file). Timestamp is green, the subsystem is in yellow and the message is red if urgent, boldface if an error, and normal for info and debug messages. Signed-off-by: Stephen Hemminger Acked-by: Morten Brørup Acked-by: Bruce Richardson Acked-by: Chengwen Feng --- app/test/test_eal_flags.c | 24 +++++ doc/guides/prog_guide/log_lib.rst | 15 +++ lib/eal/common/eal_common_options.c | 11 +++ lib/eal/common/eal_options.h | 6 +- lib/log/log.c | 19 ++-- lib/log/log_color.c | 148 ++++++++++++++++++++++++++++ lib/log/log_internal.h | 5 + lib/log/log_private.h | 8 ++ lib/log/meson.build | 1 + lib/log/version.map | 1 + 10 files changed, 230 insertions(+), 8 deletions(-) create mode 100644 lib/log/log_color.c diff --git a/app/test/test_eal_flags.c b/app/test/test_eal_flags.c index 06295030b2..6ee56ec97a 100644 --- a/app/test/test_eal_flags.c +++ b/app/test/test_eal_flags.c @@ -1067,6 +1067,18 @@ test_misc_flags(void) const char * const argv25[] = {prgname, prefix, mp_flag, "--log-timestamp=invalid" }; + /* Try running with --log-color */ + const char * const argv26[] = {prgname, prefix, mp_flag, + "--log-color" }; + + /* Try running with --log-color=never */ + const char * const argv27[] = {prgname, prefix, mp_flag, + "--log-color=never" }; + + /* Try running with --log-color=invalid */ + const char * const argv28[] = {prgname, prefix, mp_flag, + "--log-color=invalid" }; + /* run all tests also applicable to FreeBSD first */ @@ -1187,6 +1199,18 @@ test_misc_flags(void) printf("Error - process did run ok with --log-timestamp=invalid parameter\n"); goto fail; } + if (launch_proc(argv26) != 0) { + printf("Error - process did not run ok with --log-color parameter\n"); + goto fail; + } + if (launch_proc(argv27) != 0) { + printf("Error - process did not run ok with --log-color=none parameter\n"); + goto fail; + } + if (launch_proc(argv28) == 0) { + printf("Error - process did run ok with --log-timestamp=invalid parameter\n"); + goto fail; + } rmdir(hugepath_dir3); diff --git a/doc/guides/prog_guide/log_lib.rst b/doc/guides/prog_guide/log_lib.rst index 476dedb097..647c3fc28a 100644 --- a/doc/guides/prog_guide/log_lib.rst +++ b/doc/guides/prog_guide/log_lib.rst @@ -59,6 +59,21 @@ For example:: Within an application, the same result can be got using the ``rte_log_set_level_pattern()`` or ``rte_log_set_level_regex()`` APIs. +Color output +~~~~~~~~~~~~ + +The log library will highlight important messages. +This is controlled by the ``--log-color`` option. +he optional argument ``when`` can be ``auto``, ``never``, or ``always``. +The default setting is ``auto`` which enables color when the output to +``stderr`` is a terminal. +If the ``when`` argument is omitted, it defaults to ``always``. + +For example to turn off all coloring:: + + /path/to/app --log-color=none + + Log timestamp ~~~~~~~~~~~~~ diff --git a/lib/eal/common/eal_common_options.c b/lib/eal/common/eal_common_options.c index 6184d27ad3..de19b1c258 100644 --- a/lib/eal/common/eal_common_options.c +++ b/lib/eal/common/eal_common_options.c @@ -73,6 +73,7 @@ eal_long_options[] = { {OPT_HUGE_UNLINK, 2, NULL, OPT_HUGE_UNLINK_NUM }, {OPT_IOVA_MODE, 1, NULL, OPT_IOVA_MODE_NUM }, {OPT_LCORES, 1, NULL, OPT_LCORES_NUM }, + {OPT_LOG_COLOR, 2, NULL, OPT_LOG_COLOR_NUM }, {OPT_LOG_LEVEL, 1, NULL, OPT_LOG_LEVEL_NUM }, {OPT_LOG_JOURNAL, 2, NULL, OPT_LOG_JOURNAL_NUM }, {OPT_LOG_TIMESTAMP, 2, NULL, OPT_LOG_TIMESTAMP_NUM }, @@ -1620,6 +1621,7 @@ eal_log_level_parse(int argc, char * const argv[]) case OPT_SYSLOG_NUM: case OPT_LOG_JOURNAL_NUM: case OPT_LOG_TIMESTAMP_NUM: + case OPT_LOG_COLOR_NUM: if (eal_parse_common_option(opt, optarg, internal_conf) < 0) return -1; break; @@ -1869,6 +1871,14 @@ eal_parse_common_option(int opt, const char *optarg, } break; + case OPT_LOG_COLOR_NUM: + if (eal_log_color(optarg) < 0) { + EAL_LOG(ERR, "invalid parameters for --" + OPT_LOG_COLOR); + return -1; + } + break; + #ifndef RTE_EXEC_ENV_WINDOWS case OPT_TRACE_NUM: { if (eal_trace_args_save(optarg) < 0) { @@ -2238,6 +2248,7 @@ eal_common_usage(void) " Set specific log level\n" " --"OPT_LOG_LEVEL"=help Show log types and levels\n" " --"OPT_LOG_TIMESTAMP"[=] Timestamp log output\n" + " --"OPT_LOG_COLOR"[=] Colorize log messages\n" #ifndef RTE_EXEC_ENV_WINDOWS " --"OPT_TRACE"=\n" " Enable trace based on regular expression trace name.\n" diff --git a/lib/eal/common/eal_options.h b/lib/eal/common/eal_options.h index c5a1c70288..c0686c2544 100644 --- a/lib/eal/common/eal_options.h +++ b/lib/eal/common/eal_options.h @@ -33,10 +33,12 @@ enum { OPT_HUGE_UNLINK_NUM, #define OPT_LCORES "lcores" OPT_LCORES_NUM, -#define OPT_LOG_LEVEL "log-level" - OPT_LOG_LEVEL_NUM, +#define OPT_LOG_COLOR "log-color" + OPT_LOG_COLOR_NUM, #define OPT_LOG_JOURNAL "log-journal" OPT_LOG_JOURNAL_NUM, +#define OPT_LOG_LEVEL "log-level" + OPT_LOG_LEVEL_NUM, #define OPT_LOG_TIMESTAMP "log-timestamp" OPT_LOG_TIMESTAMP_NUM, #define OPT_TRACE "trace" diff --git a/lib/log/log.c b/lib/log/log.c index 96fa651e81..8b7b394f49 100644 --- a/lib/log/log.c +++ b/lib/log/log.c @@ -511,14 +511,21 @@ eal_log_init(const char *id) is_terminal = isatty(STDERR_FILENO); #endif - if (log_journal_enabled()) + if (log_journal_enabled()) { log_journal_open(id); - else if (log_syslog_enabled(is_terminal)) + } else if (log_syslog_enabled(is_terminal)) { log_syslog_open(id, is_terminal); - else if (log_timestamp_enabled()) - rte_logs.print_func = log_print_with_timestamp; - else - rte_logs.print_func = vfprintf; + } else if (log_timestamp_enabled()) { + if (log_color_enabled(is_terminal)) + rte_logs.print_func = color_print_with_timestamp; + else + rte_logs.print_func = log_print_with_timestamp; + } else { + if (log_color_enabled(is_terminal)) + rte_logs.print_func = color_print; + else + rte_logs.print_func = vfprintf; + } #if RTE_LOG_DP_LEVEL >= RTE_LOG_DEBUG RTE_LOG(NOTICE, EAL, diff --git a/lib/log/log_color.c b/lib/log/log_color.c new file mode 100644 index 0000000000..db11306e55 --- /dev/null +++ b/lib/log/log_color.c @@ -0,0 +1,148 @@ +/* SPDX-License-Identifier: BSD-3-Clause */ + +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +#ifdef RTE_EXEC_ENV_WINDOWS +#include +#endif + +#include "log_internal.h" +#include "log_private.h" + +enum { + LOG_COLOR_AUTO = 0, /* default */ + LOG_COLOR_NEVER, + LOG_COLOR_ALWAYS, +} log_color_mode; + +enum color { + COLOR_NONE, + COLOR_RED, + COLOR_GREEN, + COLOR_YELLOW, + COLOR_BLUE, + COLOR_MAGENTA, + COLOR_CYAN, + COLOR_WHITE, + COLOR_BOLD, + COLOR_CLEAR, +}; + +/* Standard terminal escape codes for colors and bold */ +static const char * const color_code[] = { + [COLOR_NONE] = "", + [COLOR_RED] = "\033[31m", + [COLOR_GREEN] = "\033[32m", + [COLOR_YELLOW] = "\033[33m", + [COLOR_BLUE] = "\033[34m", + [COLOR_MAGENTA] = "\033[35m", + [COLOR_CYAN] = "\033[36m", + [COLOR_WHITE] = "\033[37m", + [COLOR_BOLD] = "\033[1m", + [COLOR_CLEAR] = "\033[0m", +}; + +__rte_format_printf(3, 4) +static int +color_fprintf(FILE *out, enum color color, const char *fmt, ...) +{ + va_list args; + int ret = 0; + + va_start(args, fmt); + ret = fprintf(out, "%s", color_code[color]); + ret += vfprintf(out, fmt, args); + ret += fprintf(out, "%s", color_code[COLOR_CLEAR]); + va_end(args); + + return ret; +} + +/* + * Controls whether color is enabled: + * modes are: + * always - enable color output regardless + * auto - enable if stderr is a terminal + * never - color output is disabled. + */ +int +eal_log_color(const char *mode) +{ + if (mode == NULL || strcmp(mode, "always") == 0) + log_color_mode = LOG_COLOR_ALWAYS; + else if (strcmp(mode, "never") == 0) + log_color_mode = LOG_COLOR_NEVER; + else if (strcmp(mode, "auto") == 0) + log_color_mode = LOG_COLOR_AUTO; + else + return -1; + + return 0; +} + +bool +log_color_enabled(bool is_terminal) +{ + switch (log_color_mode) { + default: + case LOG_COLOR_NEVER: + return false; + case LOG_COLOR_ALWAYS: + return true; + case LOG_COLOR_AUTO: + return is_terminal; + } +} + +int +color_print(FILE *f, const char *format, va_list ap) +{ + const int level = rte_log_cur_msg_loglevel(); + char *cp, *msg; + char buf[LINE_MAX]; + int ret = 0; + + vsnprintf(buf, LINE_MAX, format, ap); + msg = buf; + + /* + * use convention that first part of message (up to the ':' character) + * is the subsystem id and should be highlighted. + */ + cp = strchr(msg, ':'); + if (cp) { + /* print first part in yellow */ + ret = color_fprintf(f, COLOR_YELLOW, "%.*s", + (int)(cp - msg + 1), msg); + msg = cp + 1; + } + + if (level <= 0 || level >= (int)RTE_LOG_INFO) + ret += fprintf(f, "%s", msg); + else if (level >= (int)RTE_LOG_ERR) + ret += color_fprintf(f, COLOR_BOLD, "%s", msg); + else + ret += color_fprintf(f, COLOR_RED, "%s", msg); + + return ret; +} + +int +color_print_with_timestamp(FILE *f, const char *format, va_list ap) +{ + char tsbuf[128]; + + if (log_timestamp(tsbuf, sizeof(tsbuf)) > 0) + color_fprintf(f, COLOR_GREEN, "[%s] ", tsbuf); + + return color_print(f, format, ap); +} diff --git a/lib/log/log_internal.h b/lib/log/log_internal.h index 82fdc21ac2..bba7041ea3 100644 --- a/lib/log/log_internal.h +++ b/lib/log/log_internal.h @@ -50,5 +50,10 @@ void rte_eal_log_cleanup(void); __rte_internal int eal_log_timestamp(const char *fmt); +/* + * Enable or disable color in log messages + */ +__rte_internal +int eal_log_color(const char *mode); #endif /* LOG_INTERNAL_H */ diff --git a/lib/log/log_private.h b/lib/log/log_private.h index d8602681b2..855e32db90 100644 --- a/lib/log/log_private.h +++ b/lib/log/log_private.h @@ -50,4 +50,12 @@ log_journal_open(const char *id __rte_unused) } #endif /* !RTE_EXEC_ENV_LINUX */ +bool log_color_enabled(bool is_tty); + +__rte_format_printf(2, 0) +int color_print(FILE *f, const char *format, va_list ap); + +__rte_format_printf(2, 0) +int color_print_with_timestamp(FILE *f, const char *format, va_list ap); + #endif /* LOG_PRIVATE_H */ diff --git a/lib/log/meson.build b/lib/log/meson.build index 86e4452b19..b3de57b9c7 100644 --- a/lib/log/meson.build +++ b/lib/log/meson.build @@ -4,6 +4,7 @@ includes += global_inc sources = files( 'log.c', + 'log_color.c', 'log_timestamp.c', ) diff --git a/lib/log/version.map b/lib/log/version.map index 800d3943bc..09d8a4289b 100644 --- a/lib/log/version.map +++ b/lib/log/version.map @@ -25,6 +25,7 @@ DPDK_25 { INTERNAL { global: + eal_log_color; eal_log_init; eal_log_journal; # WINDOWS_NO_EXPORT eal_log_level2str; -- 2.45.2