前言
本文介绍的是利用Python实现的一个小工具,用于分析Git commit log,获得Git Project每个成员的简单行为数据。
Warning:代码量不能代表程序员能力水平!
启动参数
共5个。
Repo地址 Commit 起始日期 Commit 结束日期 Git仓库子目录 统计分析结果CSV文件目标路径@H_502_32@exec_git
Git Log命令:
git -C {} log --since={} --until={} --pretty=tformat:%ae --shortstat --no-merges -- {} > {}
填入参数,调用系统命令'os.system()',输出结果至本地临时文件。读取至内存,简单的String Array。
parse
Git Log输出有3种格式,对应3种正则表达式。
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"
遍历得到的数据,首先构造一个以Author为Key,分析结果为Value的字典。
分析结果构造一个元祖,包括:
Commit 次数 增加代码行数 删除代码行数 变更代码行数@H_502_32@save_csv
简单省略。
示例代码:
#!/usr/local/bin/python3# -*- Coding: utf-8 -*-'''Analyse git branch commit log,for every version,every person.'''import osimport sysimport reimport csvGIT_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,subdir,logfile) os.system(git_log_command) lines = None with open(logfile,'r',enCoding='utf-8') as logfilehandler: lines = logfilehandler.readlines() return linesdef 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 statsif __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')
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