GNU bug report logs - #66619
[PATCH 00/19] Split (gnu packages golang) part I

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Message #8 received at 66619 <at> debbugs.gnu.org (full text, mbox):

From: Sharlatan Hellseher <sharlatanus <at> gmail.com>
To: 66619 <at> debbugs.gnu.org
Cc: Sharlatan Hellseher <sharlatanus <at> gmail.com>
Subject: [PATCH 1/1] etc: Add guix-health.sh
Date: Thu, 19 Oct 2023 02:28:53 +0100

* etc/guix-health.sh: New file.
---
 etc/guix-health.sh | 145 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 145 insertions(+)
 create mode 100755 etc/guix-health.sh

diff --git a/etc/guix-health.sh b/etc/guix-health.sh
new file mode 100755
index 0000000000..9078d52ce6
--- /dev/null
+++ b/etc/guix-health.sh
@@ -0,0 +1,145 @@
+#!/bin/sh
+# GNU Guix --- Functional package management for GNU
+# Copyright © 2023 sharlatan <sharlatanus <at> gmail.com>
+
+# This file is part of GNU Guix.
+#
+# GNU Guix is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or (at
+# your option) any later version.
+#
+# GNU Guix is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+# We require Bash but for portability we'd rather not use /bin/bash or
+# /usr/bin/env in the shebang, hence this hack.
+
+## Commentary:
+#
+# General purpose check script which may be used as report during diagnostics of
+# issues with running system in general and Guix in particularly.
+
+## Code:
+
+if [ "x$BASH_VERSION" = "x" ]
+then
+    exec bash "$0" "$@"
+fi
+
+set -eo pipefail
+
+[ "$UID" -eq 0 ] || { echo "This script must be run as root."; exit 1; }
+
+REQUIRE=(
+    "herd"
+    "stat"
+    "grep"
+    "cat"
+)
+
+PAS=$'[ \033[32;1mPASS\033[0m ] '
+ERR=$'[ \033[31;1mFAIL\033[0m ] '
+WAR=$'[ \033[33;1mWARN\033[0m ] '
+INF="[ INFO ] "
+
+DEBUG=0
+
+# Map of all vital predictable files required to diagnose health condition of
+# the guix-daemon.
+declare -A GUIX_FILE
+GUIX_FILE=(
+    [socket]="/var/guix/daemon-socket/socket"
+    [configuration]="/run/current-system/configuration.scm"
+)
+
+# ------------------------------------------------------------------------------
+#+UTILITIES
+
+_err()
+{ # All errors go to stderr.
+    printf "[%s]: %s\n" "$(date +%s.%3N)" "$1"
+}
+
+_msg()
+{ # Default message to stdout.
+    printf "[%s]: %s\n" "$(date +%s.%3N)" "$1"
+}
+
+_debug()
+{
+    if [ "${DEBUG}" = '1' ]; then
+        printf "[%s]: %s\n" "$(date +%s.%3N)" "$1"
+    fi
+}
+
+die()
+{
+    _err "${ERR}$*"
+    exit 1
+}
+
+chck_require()
+{ # Check that every required command is available.
+    declare -a warn
+    local c
+
+    _debug "--- [ ${FUNCNAME[0]} ] ---"
+
+    for c in "$@"; do
+        command -v "$c" &>/dev/null || warn+=("$c")
+    done
+
+    [ "${#warn}" -ne 0 ] && die "Missing commands: ${warn[*]}."
+
+    _msg "${PAS}verification of required commands completed"
+}
+
+# ------------------------------------------------------------------------------
+#+CHECKS :: Collection of grouped check to validate Guix system health.
+
+chck_daemon()
+{ # Basic assumptions and check list to show what's going on with guix-daemon,
+  # some of the checks can't be performed if daemon is not running (e.g guix
+  # system shepherd-graph)
+
+    local guix_daemon_status
+
+    _debug "--- [ ${FUNCNAME[0]} ] ---"
+
+    guix_daemon_status="$(herd status | grep guix-daemon | cut -d' ' -f2)"
+
+    if [ "$(stat --format=%F ${GUIX_FILE[socket]})" == 'socket' ]
+    then
+        _msg "${PAS}Guix socket file is present in ${GUIX_FILE[socket]}"
+    fi
+
+    if [ "$guix_daemon_status" == "+" ]
+    then
+        _msg "${PAS}guix-daemon is running"
+    elif [ "$guix_daemon_status" == "-" ]
+    then
+        _msg "${WAR}guix-daemon is stopped"
+    fi
+
+    if grep guix-daemon "${GUIX_FILE[configuration]}" &>/dev/null
+    then
+        _msg "${PAS}guix-daemon is listed in current system config"
+    else
+        _msg "${WAR}guix-daemon is not listed in current system config"
+    fi
+}
+
+main()
+{
+    chck_require
+    chck_daemon
+    # XXX: Add more, event more!
+}
+
+main "$@"
-- 
2.41.0

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