Python實現(xiàn)一個Git日志統(tǒng)計分析的小工具
前言
本文介紹的是利用Python實現(xiàn)的一個小工具,用于分析Git commit log,獲得Git Project每個成員的簡單行為數(shù)據(jù)。
Warning:代碼量不能代表程序員能力水平!
啟動參數(shù)
共5個。
- Repo地址
- Commit 起始日期
- Commit 結(jié)束日期
- Git倉庫子目錄
- 統(tǒng)計分析結(jié)果CSV文件目標路徑
exec_git
Git Log命令:
git -C {} log --since={} --until={} --pretty=tformat:%ae --shortstat --no-merges -- {} > {}
填入?yún)?shù),調(diào)用系統(tǒng)命令'os.system()',輸出結(jié)果至本地臨時文件。讀取至內(nèi)存,簡單的String Array。
parse
Git Log輸出有3種格式,對應3種正則表達式。
REPATTERN_FULL = r"\s(\d+)\D+(\d+)\D+(\d+)\D+\n" REPATTERN_INSERT_ONLY = r"\s(\d+)\D+(\d+)\sinsertion\D+\n" REPATTERN_DELETE_ONLY = r"\s(\d+)\D+(\d+)\sdeletion\D+\n"
遍歷得到的數(shù)據(jù),首先構(gòu)造一個以Author為Key,分析結(jié)果為Value的字典。
分析結(jié)果構(gòu)造一個元祖,包括:
- Commit 次數(shù)
- 增加代碼行數(shù)
- 刪除代碼行數(shù)
- 變更代碼行數(shù)
save_csv
簡單省略。
示例代碼:
#!/usr/local/bin/python3 # -*- coding: utf-8 -*- '''Analyse git branch commit log, for every version, every person.''' import os import sys import re import csv GIT_LOG = r'git -C {} log --since={} --until={} --pretty=tformat:%ae --shortstat --no-merges -- {} > {}' REPATTERN_FULL = r"\s(\d+)\D+(\d+)\D+(\d+)\D+\n" REPATTERN_INSERT_ONLY = r"\s(\d+)\D+(\d+)\sinsertion\D+\n" REPATTERN_DELETE_ONLY = r"\s(\d+)\D+(\d+)\sdeletion\D+\n" CSV_FILE_HEADER = ["Author", "Commit", "Insert", "Delete", "Loc"] def exec_git(repo, since, until, subdir): '''Execute git log commant, return string array.''' logfile = os.path.join(os.getcwd(), 'gitstats.txt') git_log_command = GIT_LOG.format(repo, since, until, subdir, logfile) os.system(git_log_command) lines = None with open(logfile, 'r', encoding='utf-8') as logfilehandler: lines = logfilehandler.readlines() return lines def save_csv(stats, csvfile): '''save stats data to csv file.''' with open(csvfile, 'w', encoding='utf-8') as csvfilehandler: writer = csv.writer(csvfilehandler) writer.writerow(CSV_FILE_HEADER) for author, stat in stats.items(): writer.writerow([author, stat[0], stat[1], stat[2], stat[3]]) def parse(lines): '''Analyse git log and sort to csv file.''' prog_full = re.compile(REPATTERN_FULL) prog_insert_only = re.compile(REPATTERN_INSERT_ONLY) prog_delete_only = re.compile(REPATTERN_DELETE_ONLY) stats = {} for i in range(0, len(lines), 3): author = lines[i] #empty = lines[i+1] info = lines[i+2] #change = 0 insert, delete = int(0), int(0) result = prog_full.search(info) if result: #change = result[0] insert = int(result.group(2)) delete = int(result.group(3)) else: result = prog_insert_only.search(info) if result: #change = result[0] insert = int(result.group(2)) delete = int(0) else: result = prog_delete_only.search(info) if result: #change = result[0] insert = int(0) delete = int(result.group(2)) else: print('Regular expression fail!') return loc = insert - delete stat = stats.get(author) if stat is None: stats[author] = [1, insert, delete, loc] else: stat[0] += 1 stat[1] += insert stat[2] += delete stat[3] += loc return stats if __name__ == "__main__": print('gitstats begin') if len(sys.argv) != 6: print('Invalid argv parameters.') exit(0) REPO = os.path.join(os.getcwd(), sys.argv[1]) SINCE = sys.argv[2] UNTIL = sys.argv[3] SUB_DIR = sys.argv[4] CSV_FILE = os.path.join(os.getcwd(), sys.argv[5]) LINES = exec_git(REPO, SINCE, UNTIL, SUB_DIR) assert LINES is not None STATS = parse(LINES) save_csv(STATS, CSV_FILE) print('gitstats done')
總結(jié)
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