[Tools] P4 应用

来点PERFORCE 应用实例。

function ： 把当前workspace中的所有文件（local file & P4 file）打成label

cmd:            p4 labelsync , p4 shelve, p4 unshelve, p4 revert , p4 change , p4 info, p4 changes, p4 label 

#!/usr/bin/env python3

import sys,time,shutil,getopt
import os
import subprocess
import re,datetime 
form threading import Thread

label_user = "";

def get_options():

    global label_user;

    try:
        opts,args = getopt.getopt(sys.argv[1:],"hl:",["help","label="])
    except getopt.GetoptError:
        print_help()
        sys.exit()
    for op,para in opts:
        if op in("-h","--help"):
            print_help()
            sys.exit()
        if op in ("-l","--label"):
            label_user = '.'+ para

get_options();

cmd         = 'p4 info | perl -ne "print if s/Client root: //"'
root        = os.popen(cmd).read().replace('\n','')
root_path   = root + '/...'
cmd         = 'p4 info | perl -ne "print if s/Client name: //"'
client      = os.popen(cmd).read().replace('\n','')
pwd_path    = root + '/' + ENV["MID_LEVEL"]
pwd_path_tmp = pwd_path.replace('/','\/')
user_name    = os.popen("echo $P4USER").read.replace('\n','')
proj_name    = os.popen("echo $USER").read.replace('\n','')
date         = datetime.datetime.now().strftime('%F %T')
date_str     = date.replace(' ','.')
label_name   = 'label'+ '.' + proj_name + '.' + date_str + label_user
proj_sim_path = os.getenv('SIMENV_SIM')

cmd = 'p4 changelists -c %s -s pending' % client  #查看现有的pending list
chg_lst_queue = []
cmd_result_queue = os.popen(cmd).readlines()
for i in range(0,len(cmd_result_queue)):
    cmd_result = cmd_result_queue[i].replace('\n','')
    change_num = re.match('\w+\s(\d+)\s',cmd_result.group(1))
    chg_lst_queue.append(change_num)




def father_thread():

    global script_done;
    global flag;
    script_done = 0
    flag = 0
    os.chdir(pwd_path)
    
    cmd_queue = []
    cmd_queue.append('p4 label -o %s > label.txt' % label_name)#create label
    cmd_queue.append('p4 label -i < label.txt')
    cmd_queue.append('rm -rf label.txt')
    cmd_queue.append('p4 labelsync -l %s %s >/dev/null' %(label_name,root_path))#把当前workspace中在P4上的文件打入label
    cmd_queue.append('p4 change -o > change_spec.txt')#创建一个新的change list
    cmd_queue.append('sed "s/<.*>/<%s>/" -i change_spec.txt')#把描述改为label name
    cmd_queue.append('p4 change -i < change_spec.txt')
    cmd_queue.append('rm -rf change_spec.txt')
    cmd_queue.append('p4 changes -m 1 -u %s' % user_name)#8 , 找到最新的change list
    cmd_queue.append('find . -type f | grep -v '.*\/\..*'>%s/all_files.sh' %proj_sim_path) #找到当前workspace下的所有文件，不包括隐藏文件
    cmd_queue.append('chmod +x %s/all_files.sh'%proj_sim_path)
    cmd_queue.append('%s/all_files.sh' %proj_sim_path）
    cmd_queue.append('rm -rf %s/all_files.sh ' % proj_sim_path)#12

    for i in range(0,len(cmd_queue)):
        
        if(i==8):
            latest_changes = os.popen(cmd_queue[i]).read().replace('\n','')
            matchobj = re.match('\w+\s(\d+)\s',latest_changes)
            shelve_number = matchobj.group(1)
            chg_lst_queue.append(shelve_num)
            flag = 1
            os.system('p4 edit -c %s %s >/dev/null'%(shelve_number,root_path))
            os.system('p4 revert -a -c %s >/dev/null'%shelve_number)# revert unchanged file
        elif(i==9):#通过P4 add 把所有local file 加入最新的change list
            os.system(cmd_queue[i]) 
            os.system("sed -i \'s/^./p4 add -c %s %s/\' %s/all_files.sh" % (shelve_number,pwd_path_tmp,proj_sim_path))
            os.system("sed -i 's/$/ >\/dev\/null /' %s/all_files.sh" % proj_sim_path) 
        elif(i==12): 
            script_done = 1
            os.system(cmd_queue[i])
            for j in range(0,len(chg_lst_queue)): # 把所有pending list 进行shelve
                os.system('p4 shelve -c %s -f' %chg_lst_queue[i]) 
        else:
            os.system(cmd_queue[i])




       file_for_de = "%s/file_for_de_%s" %(proj_sim_path,shelve_number)
       if(os.path.exists(file_for_de)):
           os.remove(file_for_de)
       with open(file_for_de,'a') as f:
           f.write("#!/usr/bin/env python3\n")
           f.write("import os\n")
           f.write("os.system('p4 sync @%s >/dev/null')\n" % label_name)
           for i in range(0,len(chg_lst_queue)):
               f.write("os.system('p4 unshelve -s %s -f')" %chg_lst_queue[i] + "\n" )
           f.write("cmd  = 'p4 info | perl -ne "print if s/Client root: //\"'"+"\n")
           f.write("root  = os.popen(cmd).read().replace('\\n','')"+ "\n")
           f.write("root_path = root + '/...'"+ "\n")
           #f.write("os.system('p4 revert -k %s ' %root_path')")
           
           os.system('chmod 777 %s' %file_for_de)




       file_for_dv = "%s/file_for_dv_%s" %(proj_sim_path,shelve_number)
       if(os.path.exists(file_for_dv)):
           os.remove(file_for_dv)
       with open(file_for_dv,'a') as f:
           f.write("#!/usr/bin/env python3\n")
           f.write("import os\n")
           f.write("os.system('p4 shelve -d -c %s')" % shelve_number + "\n")
           f.write("os.system('p4 revert -k -c %s //...')" % shelve_number + "\n")
           f.write("os.system('p4 change -d %s')" % shelve_number + "\n")
           f.write("os.system('p4 label -d %s')" % label_name +"\n")
           f.write("os.system('rm -rf %s %s ') %(file_for_de,file_for_dv) +"\n")
           
           os.system('chmod 777 %s' %file_for_dv)

def son_thread():

    global script_done;
    global flag;
    cnt = 0
   
    while(1):
        if(script_done == 1 or cnt == 100):
            exit(0)

        else:
            if(flag==1):
                cnt= cnt+1
                if(cnt == 1):
                    print("wait .....\n")
                sys.stdout.write('> ')
                sys.stdout.flush()
                time.sleep(2)

t1 = Thread(target=father_thread)
t1.start()

t2 = Thread(target=son_thread)
t2.start()

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perl -pi -e "s/you/me/g" file

      -e 参数允许执行 Perl 代码
      -p 参数确保处理文本的每一行并且将处理后的结果打印出来
      -i 参数将修改的结果应用到文件中（所以看不到 -p 打印的内容了）

      -n 表示遍历所有行（类似 -p 但不负责打印结果）

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p4 revert 

-a	Revert only those files that haven't changed (in terms of content or filetype) since they were opened.

-k	Keep workspace files; the file(s) are removed from any changelists and Perforce records that the files as being no longer open, but the file(s) are unchanged in the client workspace.

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