fru-print

#!/usr/bin/env python3

# Copyright (C) 2020 - 2022 Xilinx, Inc.  All rights reserved.
# SPDX-License-Identifier: MIT

import argparse, yaml, sys
from glob import glob
from fru import load

parser = argparse.ArgumentParser(description='print fru data of SOM/CC eeprom')
parser.add_argument('-b','--board', action='store', choices=['som','cc'], type=str, help='Enter som or cc')
parser.add_argument('-f','--field', action='store', nargs="+", type=str, help='enter fields to index using. (if entering one arg, it\'s assumed the field is from board area)')
parser.add_argument('-s','--sompath', type=str, nargs="?", default='/sys/bus/i2c/devices/*50/eeprom', help='enter path to SOM EEPROM')
parser.add_argument('-c','--ccpath', type=str, nargs="?", default='/sys/bus/i2c/devices/*51/eeprom', help='enter path to CC EEPROM')
parser.add_argument('-d','--device', type=str, nargs="?", default='', help='enter path to EEPROM device e.g. /sys/bus/i2c/devices/1-0050/eeprom')
args = parser.parse_args()

if args.device:
    try:
        device=glob(args.device)[0]
    except:
        sys.exit('\ndevice path is incorrect: ' + args.device)

elif args.board == 'som':
    try:
        som=glob(args.sompath)[0]
    except:
        sys.exit('\nsompath is incorrect:' + args.sompath)

elif args.board == 'cc':
    try:
        cc=glob(args.ccpath)[0]
    except:
        sys.exit('\nccpath is incorrect: ' + args.ccpath)
else:
    try:
        som=glob(args.sompath)[0]
        cc=glob(args.ccpath)[0]
    except:
        sys.exit('\nOne of the following paths is wrong:\nsom path: ' + args.sompath + '\n' + 'cc path: ' + args.ccpath)

if args.field and args.board is None and args.device is None:
    parser.error('\nIf entering a field, need board or device input as well')

elif args.board and args.field is None:
    try:
        print(yaml.dump(load(eval(args.board)), default_flow_style=False, allow_unicode=True))
    except ValueError:
        print("ERROR: Malformed FRU data\n")

elif args.device and args.field is None:
    try:
        print(yaml.dump(load(device), default_flow_style=False, allow_unicode=True))
    except ValueError:
        print("ERROR: Malformed FRU data\n")

elif (args.board or args.device) and args.field:
    try:
        if len(args.field) == 1:
            if args.board:
                print(load(eval(args.board))['board'][args.field[0]])
            elif args.device:
                print(load(args.device)['board'][args.field[0]])
        else:
            if args.board:
                data = load(eval(args.board))
            elif args.device:
                data = load(args.device)
            for field in args.field:
                data = data[field]
            print(data)
    except ValueError:
        print("ERROR: Malformed FRU data\n")
    except KeyError:
        print("ERROR: "+str(args.field)+" is not a valid input for field.\nmultiple key values can be provided to the field arg, ex. -f multirecord DC_Load_Record max_V\n\
If just one value is given, it is assumed the field is under the board area.\n")
else:
    both={'som':load(som), 'cc':load(cc)}
    print(yaml.dump(both,default_flow_style=False, allow_unicode=True))