Split land.py back out of autobuild.py, so I can change it without

risking to break the autobuild system.

2 files changed, 473 insertions, 0 deletions

diff --git a/script/autobuild-remote.py b/script/land-remote.py
index 4abc8749ac..4abc8749ac 100755
--- a/script/autobuild-remote.py
+++ b/script/land-remote.py
diff --git a/script/land.py b/script/land.py
new file mode 100755
index 0000000000..20ac8260c4
--- /dev/null
+++ b/script/land.py
@@ -0,0 +1,473 @@
+#!/usr/bin/env python
+# run tests on all Samba subprojects and push to a git tree on success
+# Copyright Andrew Tridgell 2010
+# Copyright Jelmer Vernooij 2010
+# released under GNU GPL v3 or later
+
+from subprocess import call, check_call,Popen, PIPE
+import os, tarfile, sys, time
+from optparse import OptionParser
+import smtplib
+from email.mime.text import MIMEText
+
+samba_master = os.getenv('SAMBA_MASTER', 'git://git.samba.org/samba.git')
+samba_master_ssh = os.getenv('SAMBA_MASTER_SSH', 'git+ssh://git.samba.org/data/git/samba.git')
+
+cleanup_list = []
+
+os.putenv('CC', "ccache gcc")
+
+tasks = {
+    "source3" : [ ("autogen", "./autogen.sh", "text/plain"),
+                  ("configure", "./configure.developer ${PREFIX}", "text/plain"),
+                  ("make basics", "make basics", "text/plain"),
+                  ("make", "make -j 4 everything", "text/plain"), # don't use too many processes
+                  ("install", "make install", "text/plain"),
+                  ("test", "TDB_NO_FSYNC=1 make subunit-test FAIL_IMMEDIATELY=1", "text/x-subunit") ],
+
+    "source4" : [ ("configure", "./configure.developer ${PREFIX}", "text/plain"),
+                  ("make", "make -j", "text/plain"),
+                  ("install", "make install", "text/plain"),
+                  ("test", "TDB_NO_FSYNC=1 make subunit-test FAIL_IMMEDIATELY=1", "text/x-subunit") ],
+
+    "source4/lib/ldb" : [ ("configure", "./configure --enable-developer -C ${PREFIX}", "text/plain"),
+                          ("make", "make -j", "text/plain"),
+                          ("install", "make install", "text/plain"),
+                          ("test", "make test", "text/plain") ],
+
+    "lib/tdb" : [ ("autogen", "./autogen-waf.sh", "text/plain"),
+                  ("configure", "./configure --enable-developer -C ${PREFIX}", "text/plain"),
+                  ("make", "make -j", "text/plain"),
+                  ("install", "make install", "text/plain"),
+                  ("test", "make test", "text/plain") ],
+
+    "lib/talloc" : [ ("autogen", "./autogen-waf.sh", "text/plain"),
+                     ("configure", "./configure --enable-developer -C ${PREFIX}", "text/plain"),
+                     ("make", "make -j", "text/plain"),
+                     ("install", "make install", "text/plain"),
+                     ("test", "make test", "text/plain"), ],
+
+    "lib/replace" : [ ("autogen", "./autogen-waf.sh", "text/plain"),
+                      ("configure", "./configure --enable-developer -C ${PREFIX}", "text/plain"),
+                      ("make", "make -j", "text/plain"),
+                      ("install", "make install", "text/plain"),
+                      ("test", "make test", "text/plain"), ],
+
+    "lib/tevent" : [ ("configure", "./configure --enable-developer -C ${PREFIX}", "text/plain"),
+                     ("make", "make -j", "text/plain"),
+                     ("install", "make install", "text/plain"),
+                     ("test", "make test", "text/plain"), ],
+}
+
+retry_task = [ ( "retry",
+                 '''set -e
+                git remote add -t master master %s
+                git fetch master
+                while :; do
+                  sleep 60
+                  git describe master/master > old_master.desc
+                  git fetch master
+                  git describe master/master > master.desc
+                  diff old_master.desc master.desc
+                done
+               ''' % samba_master, "test/plain" ) ]
+
+def run_cmd(cmd, dir=".", show=None, output=False, checkfail=True):
+    if show is None:
+        show = options.verbose
+    if show:
+        print("Running: '%s' in '%s'" % (cmd, dir))
+    if output:
+        return Popen([cmd], shell=True, stdout=PIPE, cwd=dir).communicate()[0]
+    elif checkfail:
+        return check_call(cmd, shell=True, cwd=dir)
+    else:
+        return call(cmd, shell=True, cwd=dir)
+
+
+class builder(object):
+    '''handle build of one directory'''
+
+    def __init__(self, name, sequence):
+        self.name = name
+
+        if name in ['pass', 'fail', 'retry']:
+            self.dir = "."
+        else:
+            self.dir = self.name
+
+        self.tag = self.name.replace('/', '_')
+        self.sequence = sequence
+        self.next = 0
+        self.stdout_path = "%s/%s.stdout" % (gitroot, self.tag)
+        self.stderr_path = "%s/%s.stderr" % (gitroot, self.tag)
+        if options.verbose:
+            print("stdout for %s in %s" % (self.name, self.stdout_path))
+            print("stderr for %s in %s" % (self.name, self.stderr_path))
+        run_cmd("rm -f %s %s" % (self.stdout_path, self.stderr_path))
+        self.stdout = open(self.stdout_path, 'w')
+        self.stderr = open(self.stderr_path, 'w')
+        self.stdin  = open("/dev/null", 'r')
+        self.sdir = "%s/%s" % (testbase, self.tag)
+        self.prefix = "%s/prefix/%s" % (testbase, self.tag)
+        run_cmd("rm -rf %s" % self.sdir)
+        cleanup_list.append(self.sdir)
+        cleanup_list.append(self.prefix)
+        os.makedirs(self.sdir)
+        run_cmd("rm -rf %s" % self.sdir)
+        run_cmd("git clone --shared %s %s" % (gitroot, self.sdir))
+        self.start_next()
+
+    def start_next(self):
+        if self.next == len(self.sequence):
+            print '%s: Completed OK' % self.name
+            self.done = True
+            return
+        (self.stage, self.cmd, self.output_mime_type) = self.sequence[self.next]
+        self.cmd = self.cmd.replace("${PREFIX}", "--prefix=%s" % self.prefix)
+        if self.output_mime_type == "text/x-subunit":
+            self.cmd += " | %s --immediate" % (os.path.join(os.path.dirname(__file__), "selftest/format-subunit"))
+        print '%s: [%s] Running %s' % (self.name, self.stage, self.cmd)
+        cwd = os.getcwd()
+        os.chdir("%s/%s" % (self.sdir, self.dir))
+        self.proc = Popen(self.cmd, shell=True,
+                          stdout=self.stdout, stderr=self.stderr, stdin=self.stdin)
+        os.chdir(cwd)
+        self.next += 1
+
+
+class buildlist(object):
+    '''handle build of multiple directories'''
+
+    def __init__(self, tasklist, tasknames):
+        global tasks
+        self.tlist = []
+        self.tail_proc = None
+        self.retry = None
+        if tasknames == ['pass']:
+            tasks = { 'pass' : [ ("pass", '/bin/true', "text/plain") ]}
+        if tasknames == ['fail']:
+            tasks = { 'fail' : [ ("fail", '/bin/false', "text/plain") ]}
+        if tasknames == []:
+            tasknames = tasklist
+        for n in tasknames:
+            b = builder(n, tasks[n])
+            self.tlist.append(b)
+        if options.retry:
+            self.retry = builder('retry', retry_task)
+            self.need_retry = False
+
+    def kill_kids(self):
+        if self.tail_proc is not None:
+            self.tail_proc.terminate()
+            self.tail_proc.wait()
+            self.tail_proc = None
+        if self.retry is not None:
+            self.retry.proc.terminate()
+            self.retry.proc.wait()
+            self.retry = None
+        for b in self.tlist:
+            if b.proc is not None:
+                run_cmd("killbysubdir %s > /dev/null 2>&1" % b.sdir, checkfail=False)
+                b.proc.terminate()
+                b.proc.wait()
+                b.proc = None
+
+    def wait_one(self):
+        while True:
+            none_running = True
+            for b in self.tlist:
+                if b.proc is None:
+                    continue
+                none_running = False
+                b.status = b.proc.poll()
+                if b.status is None:
+                    continue
+                b.proc = None
+                return b
+            if options.retry:
+                ret = self.retry.proc.poll()
+                if ret is not None:
+                    self.need_retry = True
+                    self.retry = None
+                    return None
+            if none_running:
+                return None
+            time.sleep(0.1)
+
+    def run(self):
+        while True:
+            b = self.wait_one()
+            if options.retry and self.need_retry:
+                self.kill_kids()
+                print("retry needed")
+                return (0, "retry")
+            if b is None:
+                break
+            if os.WIFSIGNALED(b.status) or os.WEXITSTATUS(b.status) != 0:
+                self.kill_kids()
+                return (b.status, b.name, b.stage, b.tag, "%s: [%s] failed '%s' with status %d" % (b.name, b.stage, b.cmd, b.status))
+            b.start_next()
+        self.kill_kids()
+        return (0, None, None, None, "All OK")
+
+    def tarlogs(self, fname):
+        tar = tarfile.open(fname, "w:gz")
+        for b in self.tlist:
+            tar.add(b.stdout_path, arcname="%s.stdout" % b.tag)
+            tar.add(b.stderr_path, arcname="%s.stderr" % b.tag)
+        tar.close()
+
+    def remove_logs(self):
+        for b in self.tlist:
+            os.unlink(b.stdout_path)
+            os.unlink(b.stderr_path)
+
+    def start_tail(self):
+        cwd = os.getcwd()
+        cmd = "tail -f *.stdout *.stderr"
+        os.chdir(gitroot)
+        self.tail_proc = Popen(cmd, shell=True)
+        os.chdir(cwd)
+
+
+def cleanup():
+    if options.nocleanup:
+        return
+    print("Cleaning up ....")
+    for d in cleanup_list:
+        run_cmd("rm -rf %s" % d)
+
+
+def find_git_root():
+    '''get to the top of the git repo'''
+    p=os.getcwd()
+    while p != '/':
+        if os.path.isdir(os.path.join(p, ".git")):
+            return p
+        p = os.path.abspath(os.path.join(p, '..'))
+    return None
+
+
+def daemonize(logfile):
+    pid = os.fork()
+    if pid == 0: # Parent
+        os.setsid()
+        pid = os.fork()
+        if pid != 0: # Actual daemon
+            os._exit(0)
+    else: # Grandparent
+        os._exit(0)
+
+    import resource      # Resource usage information.
+    maxfd = resource.getrlimit(resource.RLIMIT_NOFILE)[1]
+    if maxfd == resource.RLIM_INFINITY:
+        maxfd = 1024 # Rough guess at maximum number of open file descriptors.
+    for fd in range(0, maxfd):
+        try:
+            os.close(fd)
+        except OSError:
+            pass
+    os.open(logfile, os.O_RDWR | os.O_CREAT)
+    os.dup2(0, 1)
+    os.dup2(0, 2)
+
+
+def rebase_tree(url):
+    print("Rebasing on %s" % url)
+    run_cmd("git remote add -t master master %s" % url, show=True, dir=test_master)
+    run_cmd("git fetch master", show=True, dir=test_master)
+    if options.fix_whitespace:
+        run_cmd("git rebase --whitespace=fix master/master", show=True, dir=test_master)
+    else:
+        run_cmd("git rebase master/master", show=True, dir=test_master)
+    diff = run_cmd("git --no-pager diff HEAD master/master", dir=test_master, output=True)
+    if diff == '':
+        print("No differences between HEAD and master/master - exiting")
+        sys.exit(0)
+
+def push_to(url):
+    print("Pushing to %s" % url)
+    if options.mark:
+        run_cmd("EDITOR=script/commit_mark.sh git commit --amend -c HEAD", dir=test_master)
+        # the notes method doesn't work yet, as metze hasn't allowed refs/notes/* in master
+        # run_cmd("EDITOR=script/commit_mark.sh git notes edit HEAD", dir=test_master)
+    run_cmd("git remote add -t master pushto %s" % url, show=True, dir=test_master)
+    run_cmd("git push pushto +HEAD:master", show=True, dir=test_master)
+
+def_testbase = os.getenv("AUTOBUILD_TESTBASE", "/memdisk/%s" % os.getenv('USER'))
+
+parser = OptionParser()
+parser.add_option("", "--tail", help="show output while running", default=False, action="store_true")
+parser.add_option("", "--keeplogs", help="keep logs", default=False, action="store_true")
+parser.add_option("", "--nocleanup", help="don't remove test tree", default=False, action="store_true")
+parser.add_option("", "--testbase", help="base directory to run tests in (default %s)" % def_testbase,
+                  default=def_testbase)
+parser.add_option("", "--passcmd", help="command to run on success", default=None)
+parser.add_option("", "--verbose", help="show all commands as they are run",
+                  default=False, action="store_true")
+parser.add_option("", "--rebase", help="rebase on the given tree before testing",
+                  default=None, type='str')
+parser.add_option("", "--rebase-master", help="rebase on %s before testing" % samba_master,
+                  default=False, action='store_true')
+parser.add_option("", "--pushto", help="push to a git url on success",
+                  default=None, type='str')
+parser.add_option("", "--push-master", help="push to %s on success" % samba_master_ssh,
+                  default=False, action='store_true')
+parser.add_option("", "--mark", help="add a Tested-By signoff before pushing",
+                  default=False, action="store_true")
+parser.add_option("", "--fix-whitespace", help="fix whitespace on rebase",
+                  default=False, action="store_true")
+parser.add_option("", "--retry", help="automatically retry if master changes",
+                  default=False, action="store_true")
+parser.add_option("", "--email", help="send email to the given address on failure",
+                  type='str', default=None)
+parser.add_option("", "--always-email", help="always send email, even on success",
+                  action="store_true")
+parser.add_option("", "--daemon", help="daemonize after initial setup",
+                  action="store_true")
+
+
+def email_failure(status, failed_task, failed_stage, failed_tag, errstr):
+    '''send an email to options.email about the failure'''
+    user = os.getenv("USER")
+    text = '''
+Dear Developer,
+
+Your autobuild failed when trying to test %s with the following error:
+   %s
+
+the autobuild has been abandoned. Please fix the error and resubmit.
+
+You can see logs of the failed task here:
+
+  http://git.samba.org/%s/samba-autobuild/%s.stdout
+  http://git.samba.org/%s/samba-autobuild/%s.stderr
+
+or you can get full logs of all tasks in this job here:
+
+  http://git.samba.org/%s/samba-autobuild/logs.tar.gz
+
+''' % (failed_task, errstr, user, failed_tag, user, failed_tag, user)
+    msg = MIMEText(text)
+    msg['Subject'] = 'autobuild failure for task %s during %s' % (failed_task, failed_stage)
+    msg['From'] = 'autobuild@samba.org'
+    msg['To'] = options.email
+
+    s = smtplib.SMTP()
+    s.connect()
+    s.sendmail(msg['From'], [msg['To']], msg.as_string())
+    s.quit()
+
+def email_success():
+    '''send an email to options.email about a successful build'''
+    user = os.getenv("USER")
+    text = '''
+Dear Developer,
+
+Your autobuild has succeeded.
+
+'''
+
+    if options.keeplogs:
+        text += '''
+
+you can get full logs of all tasks in this job here:
+
+  http://git.samba.org/%s/samba-autobuild/logs.tar.gz
+
+''' % (user,)
+    msg = MIMEText(text)
+    msg['Subject'] = 'autobuild success'
+    msg['From'] = 'autobuild@samba.org'
+    msg['To'] = options.email
+
+    s = smtplib.SMTP()
+    s.connect()
+    s.sendmail(msg['From'], [msg['To']], msg.as_string())
+    s.quit()
+
+
+(options, args) = parser.parse_args()
+
+if options.retry:
+    if not options.rebase_master and options.rebase is None:
+        raise Exception('You can only use --retry if you also rebase')
+
+testbase = "%s/b%u" % (options.testbase, os.getpid())
+test_master = "%s/master" % testbase
+
+gitroot = find_git_root()
+if gitroot is None:
+    raise Exception("Failed to find git root")
+
+try:
+    os.makedirs(testbase)
+except Exception, reason:
+    raise Exception("Unable to create %s : %s" % (testbase, reason))
+cleanup_list.append(testbase)
+
+if options.daemon:
+    logfile = os.path.join(testbase, "log")
+    print "Forking into the background, writing progress to %s" % logfile
+    daemonize(logfile)
+
+while True:
+    try:
+        run_cmd("rm -rf %s" % test_master)
+        cleanup_list.append(test_master)
+        run_cmd("git clone --shared %s %s" % (gitroot, test_master))
+    except:
+        cleanup()
+        raise
+
+    try:
+        if options.rebase is not None:
+            rebase_tree(options.rebase)
+        elif options.rebase_master:
+            rebase_tree(samba_master)
+        blist = buildlist(tasks, args)
+        if options.tail:
+            blist.start_tail()
+        (status, failed_task, failed_stage, failed_tag, errstr) = blist.run()
+        if status != 0 or errstr != "retry":
+            break
+        cleanup()
+    except:
+        cleanup()
+        raise
+
+blist.kill_kids()
+if options.tail:
+    print("waiting for tail to flush")
+    time.sleep(1)
+
+if status == 0:
+    print errstr
+    if options.passcmd is not None:
+        print("Running passcmd: %s" % options.passcmd)
+        run_cmd(options.passcmd, dir=test_master)
+    if options.pushto is not None:
+        push_to(options.pushto)
+    elif options.push_master:
+        push_to(samba_master_ssh)
+    if options.keeplogs:
+        blist.tarlogs("logs.tar.gz")
+        print("Logs in logs.tar.gz")
+    if options.always_email:
+        email_success()
+    blist.remove_logs()
+    cleanup()
+    print(errstr)
+    sys.exit(0)
+
+# something failed, gather a tar of the logs
+blist.tarlogs("logs.tar.gz")
+
+if options.email is not None:
+    email_failure(status, failed_task, failed_stage, failed_tag, errstr)
+
+cleanup()
+print(errstr)
+print("Logs in logs.tar.gz")
+sys.exit(status)