script: added autobuild.py automatic build test script

this can be used to run all tests in parallel, in free git clones

diff --git a/script/autobuild.py b/script/autobuild.py
new file mode 100755 (executable)
index 0000000..62564ef
--- /dev/null
+++ b/script/autobuild.py
@@ -0,0 +1,263 @@
+#!/usr/bin/env python
+# run tests on all Samba subprojects and push to a git tree on success
+# Copyright Andrew Tridgell 2010
+# released under GNU GPL v3 or later
+
+from subprocess import Popen, PIPE
+import os, signal, tarfile, sys, time
+from optparse import OptionParser
+
+
+cleanup_list = []
+
+tasks = {
+    "source3" : [ "./autogen.sh",
+                  "./configure.developer ${PREFIX}",
+                  "make basics",
+                  "make -j",
+                  "make test" ],
+
+    "source4" : [ "./autogen.sh",
+                  "./configure.developer ${PREFIX}",
+                  "make -j",
+                  "make test" ],
+
+    "source4/lib/ldb" : [ "./autogen-waf.sh",
+                          "./configure --enable-developer -C ${PREFIX}",
+                          "make -j",
+                          "make test" ],
+
+    "lib/tdb" : [ "./autogen-waf.sh",
+                  "./configure --enable-developer -C ${PREFIX}",
+                  "make -j",
+                  "make test" ],
+
+    "lib/talloc" : [ "./autogen-waf.sh",
+                     "./configure --enable-developer -C ${PREFIX}",
+                     "make -j",
+                     "make test" ],
+
+    "lib/replace" : [ "./autogen-waf.sh",
+                      "./configure --enable-developer -C ${PREFIX}",
+                      "make -j",
+                      "make test" ],
+
+    "lib/tevent" : [ "./autogen-waf.sh",
+                     "./configure --enable-developer -C ${PREFIX}",
+                     "make -j",
+                     "make test" ],
+}
+
+def run_cmd(cmd, dir=".", show=None):
+    cwd = os.getcwd()
+    os.chdir(dir)
+    if show is None:
+        show = options.verbose
+    if show:
+        print("Running: '%s' in '%s'" % (cmd, dir))
+    ret = os.system(cmd)
+    os.chdir(cwd)
+    if ret != 0:
+        raise Exception("FAILED %s: %d" % (cmd, ret))
+
+class builder:
+    '''handle build of one directory'''
+    def __init__(self, name, sequence):
+        self.name = name
+        self.tag = self.name.replace('/', '_')
+        self.sequence = sequence
+        self.next = 0
+        self.stdout_path = "%s/%s.stdout" % (options.testbase, self.tag)
+        self.stderr_path = "%s/%s.stderr" % (options.testbase, self.tag)
+        cleanup_list.append(self.stdout_path)
+        cleanup_list.append(self.stderr_path)
+        run_cmd("rm -f %s %s" % (self.stdout_path, self.stderr_path))
+        self.stdout = open(self.stdout_path, 'w')
+        self.stderr = open(self.stderr_path, 'w')
+        self.stdin  = open("/dev/null", 'r')
+        self.sdir = "%s/%s" % (options.testbase, self.tag)
+        self.prefix = "%s/prefix/%s" % (options.testbase, self.tag)
+        run_cmd("rm -rf %s" % self.sdir)
+        os.makedirs(self.sdir)
+        cleanup_list.append(self.sdir)
+        cleanup_list.append(self.prefix)
+        run_cmd("rm -rf %s" % self.sdir)
+        run_cmd("git clone --shared %s %s" % (gitroot, self.sdir))
+        self.start_next()
+
+    def start_next(self):
+        if self.next == len(self.sequence):
+            print '%s: Completed OK' % self.name
+            self.done = True
+            return
+        self.cmd = self.sequence[self.next].replace("${PREFIX}", "--prefix=%s" % self.prefix)
+        print '%s: Running %s' % (self.name, self.cmd)
+        cwd = os.getcwd()
+        os.chdir("%s/%s" % (self.sdir, self.name))
+        self.proc = Popen(self.cmd, shell=True,
+                          stdout=self.stdout, stderr=self.stderr, stdin=self.stdin)
+        os.chdir(cwd)
+        self.next += 1
+
+
+class buildlist:
+    '''handle build of multiple directories'''
+    def __init__(self, tasklist, tasknames):
+        self.tlist = []
+        self.tail_proc = None
+        if tasknames == []:
+            tasknames = tasklist
+        for n in tasknames:
+            b = builder(n, tasks[n])
+            self.tlist.append(b)
+
+    def kill_kids(self):
+        for b in self.tlist:
+            if b.proc is not None:
+                b.proc.terminate()
+                b.proc.wait()
+                b.proc = None
+        if self.tail_proc is not None:
+            self.tail_proc.terminate()
+            self.tail_proc.wait()
+            self.tail_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 none_running:
+                return None
+            time.sleep(0.1)
+
+    def run(self):
+        while True:
+            b = self.wait_one()
+            if b is None:
+                break
+            if os.WIFSIGNALED(b.status) or os.WEXITSTATUS(b.status) != 0:
+                self.kill_kids()
+                return (b.status, "%s: failed '%s' with status %d" % (b.name, b.cmd, b.status))
+            b.start_next()
+        self.kill_kids()
+        return (0, "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 "
+        for b in self.tlist:
+            cmd += "%s %s " % (b.stdout_path, b.stderr_path)
+        os.chdir(options.testbase)
+        self.tail_proc = Popen(cmd, shell=True)
+        os.chdir(cwd)
+
+
+def cleanup():
+    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'''
+    cwd=os.getcwd()
+    while os.getcwd() != '/':
+        try:
+            os.stat(".git")
+            ret = os.getcwd()
+            os.chdir(cwd)
+            return ret
+        except:
+            os.chdir("..")
+            pass
+    os.chdir(cwd)
+    return None
+
+def_testbase = "/memdisk/%s/autobuild.%u" % (os.getenv('USER'), os.getpid())
+def_passcmd  = "git push %s/master-passed +HEAD:master" % os.getenv("HOME")
+
+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("", "--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 %s)" % def_passcmd,
+                  default=def_passcmd)
+parser.add_option("", "--verbose", help="show all commands as they are run",
+                  default=False, action="store_true")
+
+
+(options, args) = parser.parse_args()
+
+test_master = "%s/master" % options.testbase
+
+gitroot = find_git_root()
+if gitroot is None:
+    raise Exception("Failed to find git root")
+
+try:
+    os.stat(options.testbase)
+except:
+    try:
+        os.makedirs(options.testbase)
+    except Exception, reason:
+        raise Exception("Unable to create %s : %s" % (options.testbase, reason))
+    cleanup_list.append(options.testbase)
+    pass
+
+run_cmd("rm -rf %s" % test_master)
+run_cmd("git clone --shared %s %s" % (gitroot, test_master))
+cleanup_list.append(test_master)
+
+try:
+    blist = buildlist(tasks, args)
+    if options.tail:
+        blist.start_tail()
+    (status, errstr) = blist.run()
+except:
+    cleanup()
+    raise
+
+blist.kill_kids()
+if options.tail:
+    print("waiting for tail to flush")
+    time.sleep(1)
+
+if status == 0:
+    print errstr
+    print("Running passcmd: %s" % options.passcmd)
+    run_cmd(options.passcmd, dir=test_master)
+    if options.keeplogs:
+        blist.tarlogs("logs.tar.gz")
+        print("Logs in logs.tar.gz")
+    blist.remove_logs()
+    cleanup()
+    sys.exit(0)
+
+# something failed, gather a tar of the logs
+print(errstr)
+blist.tarlogs("logs.tar.gz")
+blist.remove_logs()
+cleanup()
+print("Logs in logs.tar.gz")
+sys.exit(os.WEXITSTATUS(status))