From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from lists.gentoo.org (pigeon.gentoo.org [208.92.234.80]) by finch.gentoo.org (Postfix) with ESMTP id ECBBC138247 for ; Sun, 29 Dec 2013 01:58:01 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 212F5E0A7E; Sun, 29 Dec 2013 01:57:45 +0000 (UTC) Received: from smtp.gentoo.org (smtp.gentoo.org [140.211.166.183]) (using TLSv1 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by pigeon.gentoo.org (Postfix) with ESMTPS id 9DD1AE0A69 for ; Sun, 29 Dec 2013 01:57:44 +0000 (UTC) Received: from big_daddy.dol-sen.ca (S010600222de111ff.vc.shawcable.net [96.49.5.156]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: dolsen) by smtp.gentoo.org (Postfix) with ESMTPSA id B01A733F754; Sun, 29 Dec 2013 01:57:43 +0000 (UTC) From: Brian Dolbec To: gentoo-catalyst@lists.gentoo.org Cc: Brian Dolbec Subject: [gentoo-catalyst] [PATCH 5/6] modules/generic_stage_target.py, modules/stage1_target.py: Add a target_mounts dictionary Date: Sat, 28 Dec 2013 17:57:09 -0800 Message-Id: <1388282230-3563-6-git-send-email-dolsen@gentoo.org> X-Mailer: git-send-email 1.8.3.2 In-Reply-To: <1388282230-3563-1-git-send-email-dolsen@gentoo.org> References: <1388282230-3563-1-git-send-email-dolsen@gentoo.org> Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-catalyst@lists.gentoo.org Reply-to: gentoo-catalyst@lists.gentoo.org X-Archives-Salt: cda5d9dc-e367-4d3a-8459-744a7a5be65a X-Archives-Hash: 82899541ecdc59368de0f48b92063e76 Cleans up all self.mounts, self.mountmap usage. Replace multiple path additions with one instance at the beginning of the function, reuse the result multiple times. Add some extra debug prints (to be converted to logging later) --- modules/generic_stage_target.py | 94 ++++++++++++++++++++++++++--------------- modules/stage1_target.py | 5 ++- 2 files changed, 63 insertions(+), 36 deletions(-) diff --git a/modules/generic_stage_target.py b/modules/generic_stage_target.py index ce28ab8..c8d31e1 100644 --- a/modules/generic_stage_target.py +++ b/modules/generic_stage_target.py @@ -4,6 +4,23 @@ from generic_target import * from stat import * import catalyst_lock +# temporary location. It will be moved to a +# new defaults file in a later comit +TARGET_MOUNTS_DEFAULTS = { + "proc": "/proc", + "dev": "/dev", + "devpts": "/dev/pts", + "portdir": "/usr/portage", + "distdir": "/usr/portage/distfiles", + "packagedir": "/usr/portage/packages", + "port_tmpdir": "/var/tmp/portage", + "kerncache": "/tmp/kerncache", + "ccache": "/var/tmp/ccache", + "icecream": "/usr/lib/icecc/bin", + "port_logdir": "/var/log/portage", + } + + class generic_stage_target(generic_target): """ This class does all of the chroot setup, copying of files, etc. It is @@ -173,6 +190,10 @@ class generic_stage_target(generic_target): file_locate(self.settings,["portage_confdir"],expand=0) """ Setup our mount points """ + # initialize our target mounts. + # later I plan to make these configurable so the + # defaults can be easily overridden if desired. + self.target_mounts = TARGET_MOUNTS_DEFAULTS.copy() if "SNAPCACHE" in self.settings: self.mounts=["proc", "dev", "portdir", "distdir", "port_tmpdir"] self.mountmap={"proc":"/proc", "dev":"/dev", "devpts":"/dev/pts", @@ -219,17 +240,18 @@ class generic_stage_target(generic_target): self.mounts.append("ccache") self.mountmap["ccache"] = ccdir """ for the chroot: """ - self.env["CCACHE_DIR"]="/var/tmp/ccache" + self.env["CCACHE_DIR"] = self.target_mounts["ccache"] if "ICECREAM" in self.settings: self.mounts.append("/var/cache/icecream") self.mountmap["/var/cache/icecream"]="/var/cache/icecream" - self.env["PATH"]="/usr/lib/icecc/bin:"+self.env["PATH"] + self.env["PATH"] = self.target_mounts["icecream"] + ":" + \ + self.env["PATH"] if "port_logdir" in self.settings: - self.mounts.append("/var/log/portage") - self.mountmap["/var/log/portage"]=self.settings["port_logdir"] - self.env["PORT_LOGDIR"]="/var/log/portage" + self.mounts.append("port_logdir") + self.mountmap["port_logdir"]=self.settings["port_logdir"] + self.env["PORT_LOGDIR"]=self.target_mounts["port_logdir"] self.env["PORT_LOGDIR_CLEAN"]='find "${PORT_LOGDIR}" -type f ! -name "summary.log*" -mtime +30 -delete' def override_cbuild(self): @@ -603,33 +625,34 @@ class generic_stage_target(generic_target): "kill-chroot-pids script failed.",env=self.env) def mount_safety_check(self): - mypath=self.settings["chroot_path"] - """ Check and verify that none of our paths in mypath are mounted. We don't want to clean up with things still mounted, and this allows us to check. Returns 1 on ok, 0 on "something is still mounted" case. """ - if not os.path.exists(mypath): + if not os.path.exists(self.settings["chroot_path"]): return + print "self.mounts =", self.mounts for x in self.mounts: - if not os.path.exists(mypath + self.mountmap[x]): + target = normpath(self.settings["chroot_path"] + self.target_mounts[x]) + print "mount_safety_check() x =", x, target + if not os.path.exists(target): continue - if ismount(mypath + self.mountmap[x]): + if ismount(target): """ Something is still mounted "" """ try: - print self.mountmap[x] + " is still mounted; performing auto-bind-umount...", + print target + " is still mounted; performing auto-bind-umount...", """ Try to umount stuff ourselves """ self.unbind() - if ismount(mypath + self.mountmap[x]): - raise CatalystError, "Auto-unbind failed for " + self.mountmap[x] + if ismount(target): + raise CatalystError, "Auto-unbind failed for " + target else: print "Auto-unbind successful..." except CatalystError: - raise CatalystError, "Unable to auto-unbind " + self.mountmap[x] + raise CatalystError, "Unable to auto-unbind " + target def unpack(self): unpack=True @@ -897,12 +920,14 @@ class generic_stage_target(generic_target): def bind(self): for x in self.mounts: - if not os.path.exists(self.settings["chroot_path"] + self.mountmap[x]): - os.makedirs(self.settings["chroot_path"]+x,0755) + #print "bind(); x =", x + target = normpath(self.settings["chroot_path"] + self.target_mounts[x]) + if not os.path.exists(target): + os.makedirs(target, 0755) if not os.path.exists(self.mountmap[x]): if not self.mountmap[x] == "tmpfs": - os.makedirs(self.mountmap[x],0755) + os.makedirs(self.mountmap[x], 0755) src=self.mountmap[x] #print "bind(); src =", src @@ -910,20 +935,22 @@ class generic_stage_target(generic_target): self.snapshot_lock_object.read_lock() if os.uname()[0] == "FreeBSD": if src == "/dev": - retval = os.system("mount -t devfs none " + - self.settings["chroot_path"] + src) + cmd = "mount -t devfs none " + target + retval=os.system(cmd) else: - retval = os.system("mount_nullfs " + src + " " + - self.settings["chroot_path"] + src) + cmd = "mount_nullfs " + src + " " + target + retval=os.system(cmd) else: if src == "tmpfs": if "var_tmpfs_portage" in self.settings: - retval=os.system("mount -t tmpfs -o size="+\ - self.settings["var_tmpfs_portage"]+"G "+src+" "+\ - self.settings["chroot_path"]+x) + cmd = "mount -t tmpfs -o size=" + \ + self.settings["var_tmpfs_portage"] + "G " + \ + src + " " + target + retval=os.system(cmd) else: - retval = os.system("mount --bind " + src + " " + - self.settings["chroot_path"] + src) + cmd = "mount --bind " + src + " " + target + #print "bind(); cmd =", cmd + retval=os.system(cmd) if retval!=0: self.unbind() raise CatalystError,"Couldn't bind mount " + src @@ -935,26 +962,25 @@ class generic_stage_target(generic_target): myrevmounts.reverse() """ Unmount in reverse order for nested bind-mounts """ for x in myrevmounts: - if not os.path.exists(mypath + self.mountmap[x]): + target = normpath(mypath + self.target_mounts[x]) + if not os.path.exists(target): continue - if not ismount(mypath + self.mountmap[x]): + if not ismount(target): continue - retval=os.system("umount "+\ - os.path.join(mypath, self.mountmap[x].lstrip(os.path.sep))) + retval=os.system("umount " + target) if retval!=0: - warn("First attempt to unmount: " + mypath + - self.mountmap[x] +" failed.") + warn("First attempt to unmount: " + target + " failed.") warn("Killing any pids still running in the chroot") self.kill_chroot_pids() - retval2 = os.system("umount " + mypath + self.mountmap[x]) + retval2 = os.system("umount " + target) if retval2!=0: ouch=1 - warn("Couldn't umount bind mount: " + mypath + self.mountmap[x]) + warn("Couldn't umount bind mount: " + target) if "SNAPCACHE" in self.settings and x == "/usr/portage": try: diff --git a/modules/stage1_target.py b/modules/stage1_target.py index aa43926..1e0d874 100644 --- a/modules/stage1_target.py +++ b/modules/stage1_target.py @@ -88,8 +88,9 @@ class stage1_target(generic_stage_target): os.makedirs(self.settings["stage_path"]+"/proc") # alter the mount mappings to bind mount proc onto it - self.mounts.append("/tmp/stage1root/proc") - self.mountmap["/tmp/stage1root/proc"]="/proc" + self.mounts.append("stage1root/proc") + self.target_mounts["stage1root/proc"] = "/tmp/stage1root/proc" + self.mountmap["stage1root/proc"]="/proc" def register(foo): foo.update({"stage1":stage1_target}) -- 1.8.3.2