From: Lennart Poettering Date: Thu, 18 Nov 2010 03:46:28 +0000 (+0100) Subject: util: introduce /etc/os-release so that distros don't need to patch systemd to get... X-Git-Tag: v13~7 X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=commitdiff_plain;h=10aa703482a20489c061d76acb040b54fca89c6b;hp=f81c701649044712b75a7c3cdbbf2cb54fc03a0b util: introduce /etc/os-release so that distros don't need to patch systemd to get a welcome message --- diff --git a/TODO b/TODO index 96ef50c00..17e12de1b 100644 --- a/TODO +++ b/TODO @@ -53,7 +53,7 @@ * readahead: btrfs/LVM SSD detection -* man pages for: locale.conf, vconsole.conf modules-load.d +* man pages for: locale.conf, vconsole.conf, modules-load.d, /etc/os-release * when processes remain in a service even though the start command failed enter active @@ -71,8 +71,6 @@ * automatically determine TERM= based on tty name even for /dev/console -* declare /etc/os-release cross-distro standard - * fix hotplug transactions * isolate multi-user.target doesn't start a getty@tty1 if we run it from graphical.target diff --git a/src/util.c b/src/util.c index fb2eea341..861f9eaa4 100644 --- a/src/util.c +++ b/src/util.c @@ -2979,80 +2979,113 @@ void status_printf(const char *format, ...) { } void status_welcome(void) { + char *pretty_name = NULL, *ansi_color = NULL; + const char *const_pretty = NULL, *const_color = NULL; + int r; -#if defined(TARGET_FEDORA) - char *r; + if ((r = parse_env_file("/etc/os-release", NEWLINE, + "PRETTY_NAME", &pretty_name, + "ANSI_COLOR", &ansi_color, + NULL)) < 0) { - if (read_one_line_file("/etc/system-release", &r) < 0) - return; + if (r != -ENOENT) + log_warning("Failed to read /etc/os-release: %s", strerror(-r)); + } - truncate_nl(r); +#if defined(TARGET_FEDORA) + if (!pretty_name) { + if ((r = read_one_line_file("/etc/system-release", &pretty_name)) < 0) { - /* This tries to mimic the color magic the old Red Hat sysinit - * script did. */ + if (r != -ENOENT) + log_warning("Failed to read /etc/system-release: %s", strerror(-r)); + } else + truncate_nl(pretty_name); + } - if (startswith(r, "Red Hat")) - status_printf("Welcome to \x1B[0;31m%s\x1B[0m!\n", r); /* Red for RHEL */ - else if (startswith(r, "Fedora")) - status_printf("Welcome to \x1B[0;34m%s\x1B[0m!\n", r); /* Blue for Fedora */ - else - status_printf("Welcome to \x1B[1m%s\x1B[0m!\n", r); /* Highlight for everything else */ + if (!ansi_color && pretty_name) { - free(r); + /* This tries to mimic the color magic the old Red Hat sysinit + * script did. */ + + if (startswith(pretty_name, "Red Hat")) + const_color = "0;31"; /* Red for RHEL */ + else if (startswith(pretty_name, "Fedora")) + const_color = "0;34"; /* Blue for Fedora */ + } #elif defined(TARGET_SUSE) - char *r; - if (read_one_line_file("/etc/SuSE-release", &r) < 0) - return; + if (!pretty_name) { + if ((r = read_one_line_file("/etc/SuSE-release", &pretty_name)) < 0) { - truncate_nl(r); + if (r != -ENOENT) + log_warning("Failed to read /etc/SuSE-release: %s", strerror(-r)); + } else + truncate_nl(pretty_name); + } - status_printf("Welcome to \x1B[0;32m%s\x1B[0m!\n", r); /* Green for SUSE */ - free(r); + if (!ansi_color) + const_color = "0;32"; /* Green for openSUSE */ #elif defined(TARGET_GENTOO) - char *r; - - if (read_one_line_file("/etc/gentoo-release", &r) < 0) - return; - truncate_nl(r); + if (!pretty_name) { + if ((r = read_one_line_file("/etc/gentoo-release", &pretty_name)) < 0) { - status_printf("Welcome to \x1B[1;34m%s\x1B[0m!\n", r); /* Light Blue for Gentoo */ + if (r != -ENOENT) + log_warning("Failed to read /etc/gentoo-release: %s", strerror(-r)); + } else + truncate_nl(pretty_name); + } - free(r); + if (!ansi_color) + const_color = "1;34"; /* Light Blue for Gentoo */ #elif defined(TARGET_DEBIAN) - char *r; - if (read_one_line_file("/etc/debian_version", &r) < 0) - return; + if (!pretty_name) { + if ((r = read_one_line_file("/etc/debian_version", &pretty_name)) < 0) { - truncate_nl(r); + if (r != -ENOENT) + log_warning("Failed to read /etc/debian_version: %s", strerror(-r)); + } else + truncate_nl(pretty_name); + } - status_printf("Welcome to Debian \x1B[1;31m%s\x1B[0m!\n", r); /* Light Red for Debian */ + if (!ansi_color) + const_color = "1;31"; /* Light Red for Debian */ - free(r); #elif defined(TARGET_UBUNTU) - char *desc = NULL; - char *codename = NULL; - if (parse_env_file("/etc/lsb-release", NEWLINE, - "DISTRIB_DESCRIPTION", &desc, - "DISTRIB_CODENAME", &codename, NULL) < 0) - return; - if (desc && codename) - /* Light Red for Ubuntu */ - status_printf("Welcome to \x1B[1;31m%s\x1B[0m (%s)\n", - desc, codename); - free(desc); - free(codename); + if ((r = parse_env_file("/etc/lsb-release", NEWLINE, + "DISTRIB_DESCRIPTION", &pretty_name, + NULL)) < 0) { + + if (r != -ENOENT) + log_warning("Failed to read /etc/lsb-release: %s", strerror(-r)); + } + + if (!ansi_color) + const_color = "0;33"; /* Orange/Brown for Ubuntu */ + #elif defined(TARGET_ARCH) - status_printf("Welcome to \x1B[1;36mArch Linux\x1B[0m!\n"); /* Cyan for Arch */ -#else -#warning "You probably should add a welcome text logic here." + + if (!pretty_name) + const_pretty = "Arch Linux"; + + if (!ansi_color) + const_color = "1;36"; /* Cyan for Arch */ #endif + + if (!pretty_name && !const_pretty) + const_pretty = "Linux"; + + if (!ansi_color && !const_color) + const_color = "1"; + + status_printf("Welcome to \x1B[%sm%s\x1B[0m!\n", + const_color ? const_color : ansi_color, + const_pretty ? const_pretty : pretty_name); } char *replace_env(const char *format, char **env) {