EvoFS : first draft

evofs/defaults/main.yml

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+---
+
+evofs_base_dir: "/etc/evofs"

evofs/tasks/main.yml

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+---
+

evofs/templates/evofs-export.py.j2

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+#!/bin/env python
+
+import sys
+import os
+import json
+
+default_base_dir="{{ evofs_base_dir | mandatory }}"
+
+def clean_lines(lines):
+    clean_lines=[]
+    # TODO: a map/reduce or a comprehension might be better
+    for line in lines:
+        # remove linebreaks
+        # TODO: see if a proper regex is needed
+        clean_line = line.replace("\n","")
+        # don't return empty lines
+        if len(clean_line) > 0:
+            clean_lines.append(clean_line)
+    return clean_lines
+
+def read_entry(path):
+    f = open(path,"r")
+    lines = clean_lines(f.readlines())
+    
+    if len(lines) > 1:
+        # return multiple lines as array
+        return lines
+    else:
+        # return single lines as string
+        return lines[0]
+
+def build_dict(dir):
+    data = {}
+    for path in os.listdir(dir):
+        if os.path.isfile(os.path.join(dir, path)):
+            # if entry is a file, the value is the content of the file
+            data[path] = read_entry(os.path.join(dir, path))
+        elif os.path.isdir(os.path.join(dir, path)):
+            # is entry is a directory, add recursively
+            data[path] = build_dict(os.path.join(dir, path))
+    return data
+
+def main():
+    if len(sys.argv) > 1:
+        basedir = sys.argv[1]
+    else:
+        basedir = default_base_dir
+
+    if os.path.isdir(basedir):
+        data = build_dict(basedir)
+    
+        print(json.dumps(data, sort_keys=True))
+        sys.exit(0)
+    else:
+        print("Directory '" + basedir + "' not found", file=sys.stderr)
+        sys.exit(1)
+
+if __name__ == "__main__":
+    main()
+
+sys.exit(0)

evofs/templates/test.py

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+#!/bin/env python3
+
+import argparse
+from pathlib import Path
+
+parser = argparse.ArgumentParser(prog="test")
+
+parser.add_argument("path")
+
+args = parser.parse_args()
+
+target_dir = Path(args.path)
+
+
+
+if not target_dir.exists():
+    print("The target directory doesn't exist")
+    raise SystemExit(1)
+
+for entry in target_dir.iterdir():
+    print(entry.name)

evolinux-base/files/check-evoversions.sh

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+#!/bin/bash
+
+PROGNAME="check-evoversions"
+# REPOSITORY="https://gitea.evolix.org/evolix/dump-server-state"
+
+VERSION="23.07-pre"
+readonly VERSION
+
+
+# base functions
+
+show_version() {
+    cat <<END
+${PROGNAME} version ${VERSION}
+
+Copyright 2023 Evolix <info@evolix.fr>,
+               Jérémy Lecour <jlecour@evolix.fr>.
+
+${REPOSITORY}
+
+${PROGNAME} comes with ABSOLUTELY NO WARRANTY.This is free software,
+and you are welcome to redistribute it under certain conditions.
+See the GNU General Public License v3.0 for details.
+END
+}
+show_help() {
+    cat <<END
+${PROGNAME} is checking versions of software managed by Evolix
+
+Usage: ${PROGNAME} [OPTIONS]
+
+Main options
+ -v, --verbose         print details about each task
+ -V, --version         print version and exit
+ -h, --help            print this message and exit
+END
+}
+
+debug() {
+    if [ "${VERBOSE}" = "1" ]; then
+        msg="${1:-$(cat /dev/stdin)}"
+        echo "${msg}"
+    fi
+}
+add_to_temp_files() {
+    TEMP_FILES+=("${1}")
+}
+# Remove all temporary file created during the execution
+clean_temp_files() {
+    # shellcheck disable=SC2086
+    rm -f "${TEMP_FILES[@]}"
+}
+
+detect_os() {
+    if [ -e /etc/debian_version ]; then
+        version=$(cut -d "." -f 1 < /etc/debian_version)
+        return "debian${version}"
+    elif uname | grep -q -i 'openbsd'; then
+        return "openbsd"
+    else
+        echo "Unknown/unsupported OS: $(uname -a)" >&2
+        exit 1
+    fi
+}
+
+main() {
+
+    # Initialize a list of temporary files
+    declare -a TEMP_FILES=()
+    # Any file in this list will be deleted when the program exits
+    trap "clean_temp_files" EXIT
+
+    os_release=$(detect_os)
+
+    versions_file=$(mktemp --tmpdir "evocheck.versions.XXXXX")
+    add_to_temp_files "${versions_file}"
+
+    download_versions "${versions_file}"
+    add_to_path "/usr/share/scripts"
+
+    grep -v '^ *#' < "${versions_file}" | while IFS= read -r line; do
+        local program
+        local version
+        program=$(echo "${line}" | cut -d ' ' -f 1)
+        version=$(echo "${line}" | cut -d ' ' -f 2)
+
+        if [ -n "${program}" ]; then
+            if [ -n "${version}" ]; then
+                check_version "${program}" "${version}"
+            else
+                failed "IS_CHECK_VERSIONS" "failed to lookup expected version for ${program}"
+            fi
+        fi
+    done
+
+    exit ${rc}
+}
+
+# parse options
+# based on https://gist.github.com/deshion/10d3cb5f88a21671e17a
+while :; do
+    case $1 in
+        -h|-\?|--help)
+            show_help
+            exit 0
+            ;;
+        -V|--version)
+            show_version
+            exit 0
+            ;;
+        -v|--verbose)
+            VERBOSE=1
+            ;;
+
+        --)
+            # End of all options.
+            shift
+            break
+            ;;
+        -?*)
+            # ignore unknown options
+            printf 'WARN: Unknown option : %s\n' "$1" >&2
+            exit 1
+            ;;
+        *)
+            # Default case: If no more options then break out of the loop.
+            break
+            ;;
+    esac
+
+    shift
+done
+
+# Default values
+: "${VERBOSE:=0}"
+
+export LC_ALL=C
+
+set -u
+
+main