Re: [gentoo-catalyst] [PATCH 2/4] Remove self.mounts and self.mountmap's use of paths for keys and paths.

["Rick \"Zero_Chaos\" Farina" <zerochaos@gentoo.org>]

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On 12/13/2013 10:07 PM, Brian Dolbec wrote:
> Migrate more hardcoded paths to use settings variables instead.
> ---
>  catalyst                        |  3 ++
>  modules/generic_stage_target.py | 80 ++++++++++++++++++++---------------------
>  2 files changed, 43 insertions(+), 40 deletions(-)
> 
> diff --git a/catalyst b/catalyst
> index 19ec77e..60cea3e 100755
> --- a/catalyst
> +++ b/catalyst
> @@ -62,8 +62,11 @@ def parse_config(myconfig):
>  	config_file=""
>  
>  	confdefaults={
> +		"distdir": "/usr/portage/distfiles",
>  		"hash_function": "crc32",
> +		"packagedir": "/usr/portage/packages",
>  		"portdir": "/usr/portage",
> +		"port_tmpdir": "/var/tmp/portage",
>  		"repo_name": "portage",
>  		"sharedir": "/usr/lib/catalyst",
>  		"snapshot_name": "portage-",
> diff --git a/modules/generic_stage_target.py b/modules/generic_stage_target.py
> index c2888b6..342c65b 100644
> --- a/modules/generic_stage_target.py
> +++ b/modules/generic_stage_target.py
> @@ -179,11 +179,11 @@ class generic_stage_target(generic_target):
>  				"/usr/portage":self.settings["snapshot_cache_path"]+"/portage",\
>  				"/usr/portage/distfiles":self.settings["distdir"],"/var/tmp/portage":"tmpfs"}
>  		else:
> -			self.mounts=["/proc","/dev","/usr/portage/distfiles","/var/tmp/portage"]
> -			self.mountmap={"/proc":"/proc","/dev":"/dev","/dev/pts":"/dev/pts",\
> -				"/usr/portage/distfiles":self.settings["distdir"],"/var/tmp/portage":"tmpfs"}
> +			self.mounts=["proc","dev", "distdir", "port_tmpdir"]
> +			self.mountmap={"proc":"/proc", "dev":"/dev", "pts":"/dev/pts",
> +				"distdir":self.settings["distdir"], "port_tmpdir":"tmpfs"}
>  		if os.uname()[0] == "Linux":
> -			self.mounts.append("/dev/pts")
> +			self.mounts.append("pts")
this should be "devpts" since that's how it is named in mounts anyway.

- -Zero
>  
>  		self.set_mounts()
>  
> @@ -195,16 +195,15 @@ class generic_stage_target(generic_target):
>  			self.set_pkgcache_path()
>  			print "Location of the package cache is "+\
>  				self.settings["pkgcache_path"]
> -			self.mounts.append("/usr/portage/packages")
> -			self.mountmap["/usr/portage/packages"]=\
> -				self.settings["pkgcache_path"]
> +			self.mounts.append("packagedir")
> +			self.mountmap["packagedir"] = self.settings["pkgcache_path"]
>  
>  		if "KERNCACHE" in self.settings:
>  			self.set_kerncache_path()
>  			print "Location of the kerncache is "+\
>  				self.settings["kerncache_path"]
> -			self.mounts.append("/tmp/kerncache")
> -			self.mountmap["/tmp/kerncache"]=self.settings["kerncache_path"]
> +			self.mounts.append("kerncache")
> +			self.mountmap["kerncache"]=self.settings["kerncache_path"]
>  
>  		if "CCACHE" in self.settings:
>  			if "CCACHE_DIR" in os.environ:
> @@ -216,8 +215,8 @@ class generic_stage_target(generic_target):
>  				raise CatalystError,\
>  					"Compiler cache support can't be enabled (can't find "+\
>  					ccdir+")"
> -			self.mounts.append("/var/tmp/ccache")
> -			self.mountmap["/var/tmp/ccache"]=ccdir
> +			self.mounts.append("ccache")
> +			self.mountmap["ccache"]=ccdir
>  			""" for the chroot: """
>  			self.env["CCACHE_DIR"]="/var/tmp/ccache"
>  
> @@ -406,7 +405,7 @@ class generic_stage_target(generic_target):
>  
>  	def set_cleanables(self):
>  		self.settings["cleanables"]=["/etc/resolv.conf","/var/tmp/*","/tmp/*",\
> -			"/root/*","/usr/portage"]
> +			"/root/*", self.settings["portdir"]]
>  
>  	def set_snapshot_path(self):
>  		self.settings["snapshot_path"]=normpath(self.settings["storedir"]+\
> @@ -615,21 +614,21 @@ class generic_stage_target(generic_target):
>  			return
>  
>  		for x in self.mounts:
> -			if not os.path.exists(mypath+x):
> +			if not os.path.exists(mypath + self.mountmap[x]):
>  				continue
>  
> -			if ismount(mypath+x):
> +			if ismount(mypath +self.mountmap[x]):
>  				""" Something is still mounted "" """
>  				try:
> -					print x+" is still mounted; performing auto-bind-umount...",
> +					print self.mountmap[x] + " is still mounted; performing auto-bind-umount...",
>  					""" Try to umount stuff ourselves """
>  					self.unbind()
> -					if ismount(mypath+x):
> -						raise CatalystError, "Auto-unbind failed for "+x
> +					if ismount(mypath + self.mountmap[x]):
> +						raise CatalystError, "Auto-unbind failed for " + self.mountmap[x]
>  					else:
>  						print "Auto-unbind successful..."
>  				except CatalystError:
> -					raise CatalystError, "Unable to auto-unbind "+x
> +					raise CatalystError, "Unable to auto-unbind " + self.mountmap[x]
>  
>  	def unpack(self):
>  		unpack=True
> @@ -787,7 +786,7 @@ class generic_stage_target(generic_target):
>  				print "Valid snapshot cache, skipping unpack of portage tree..."
>  				unpack=False
>  		else:
> -			destdir=normpath(self.settings["chroot_path"]+"/usr/portage")
> +			destdir=normpath(self.settings["chroot_path"] + self.settings["portdir"])
>  			cleanup_errmsg="Error removing existing snapshot directory."
>  			cleanup_msg=\
>  				"Cleaning up existing portage tree (This can take a long time)..."
> @@ -801,7 +800,7 @@ class generic_stage_target(generic_target):
>  
>  			if "AUTORESUME" in self.settings \
>  				and os.path.exists(self.settings["chroot_path"]+\
> -					"/usr/portage/") \
> +					self.settings["portdir"]) \
>  				and os.path.exists(self.settings["autoresume_path"]\
>  					+"unpack_portage") \
>  				and self.settings["snapshot_path_hash"] == snapshot_hash:
> @@ -848,7 +847,7 @@ class generic_stage_target(generic_target):
>  			cmd("rm -f "+self.settings["chroot_path"]+"/etc/portage/make.profile",\
>  					"Error zapping profile link",env=self.env)
>  			cmd("mkdir -p "+self.settings["chroot_path"]+"/etc/portage/")
> -			cmd("ln -sf ../../usr/portage/profiles/"+\
> +			cmd("ln -sf ../.." + self.settings["portdir"] + "/profiles/"+\
>  				self.settings["target_profile"]+" "+\
>  				self.settings["chroot_path"]+"/etc/portage/make.profile",\
>  				"Error creating profile link",env=self.env)
> @@ -874,10 +873,10 @@ class generic_stage_target(generic_target):
>  				if os.path.exists(x):
>  					print "Copying overlay dir " +x
>  					cmd("mkdir -p "+self.settings["chroot_path"]+\
> -						"/usr/local/portage",\
> +						self.settings["local_overlay"],\
>  						"Could not make portage_overlay dir",env=self.env)
>  					cmd("cp -R "+x+"/* "+self.settings["chroot_path"]+\
> -						"/usr/local/portage",\
> +						self.settings["local_overlay"],\
>  						"Could not copy portage_overlay",env=self.env)
>  
>  	def root_overlay(self):
> @@ -897,7 +896,7 @@ class generic_stage_target(generic_target):
>  
>  	def bind(self):
>  		for x in self.mounts:
> -			if not os.path.exists(self.settings["chroot_path"]+x):
> +			if not os.path.exists(self.settings["chroot_path"] + self.mountmap[x]):
>  				os.makedirs(self.settings["chroot_path"]+x,0755)
>  
>  			if not os.path.exists(self.mountmap[x]):
> @@ -909,11 +908,11 @@ 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"]+x)
> +					retval=os.system("mount -t devfs none " +
> +						self.settings["chroot_path"] + src)
>  				else:
> -					retval=os.system("mount_nullfs "+src+" "+\
> -						self.settings["chroot_path"]+x)
> +					retval=os.system("mount_nullfs " + src + " " +
> +						self.settings["chroot_path"] + src)
>  			else:
>  				if src == "tmpfs":
>  					if "var_tmpfs_portage" in self.settings:
> @@ -921,11 +920,11 @@ class generic_stage_target(generic_target):
>  							self.settings["var_tmpfs_portage"]+"G "+src+" "+\
>  							self.settings["chroot_path"]+x)
>  				else:
> -					retval=os.system("mount --bind "+src+" "+\
> -						self.settings["chroot_path"]+x)
> +					retval=os.system("mount --bind " + src + " " +
> +						self.settings["chroot_path"] + src)
>  			if retval!=0:
>  				self.unbind()
> -				raise CatalystError,"Couldn't bind mount "+src
> +				raise CatalystError,"Couldn't bind mount " + src
>  
>  	def unbind(self):
>  		ouch=0
> @@ -934,25 +933,26 @@ 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+x):
> +			if not os.path.exists(mypath + self.mountmap[x]):
>  				continue
>  
> -			if not ismount(mypath+x):
> +			if not ismount(mypath + self.mountmap[x]):
>  				continue
>  
>  			retval=os.system("umount "+\
> -				os.path.join(mypath,x.lstrip(os.path.sep)))
> +				os.path.join(mypath, self.mountmap[x].lstrip(os.path.sep)))
>  
>  			if retval!=0:
> -				warn("First attempt to unmount: "+mypath+x+" failed.")
> +				warn("First attempt to unmount: " + mypath +
> +					self.mountmap[x] +" failed.")
>  				warn("Killing any pids still running in the chroot")
>  
>  				self.kill_chroot_pids()
>  
> -				retval2=os.system("umount "+mypath+x)
> +				retval2=os.system("umount " + mypath + self.mountmap[x])
>  				if retval2!=0:
>  					ouch=1
> -					warn("Couldn't umount bind mount: "+mypath+x)
> +					warn("Couldn't umount bind mount: " + mypath + self.mountmap[x])
>  
>  			if "SNAPCACHE" in self.settings and x == "/usr/portage":
>  				try:
> @@ -1118,9 +1118,9 @@ class generic_stage_target(generic_target):
>  				"Could not replace /etc/hosts",env=self.env)
>  
>  		""" Remove our overlay """
> -		if os.path.exists(self.settings["chroot_path"]+"/usr/local/portage"):
> -			cmd("rm -rf "+self.settings["chroot_path"]+"/usr/local/portage",\
> -				"Could not remove /usr/local/portage",env=self.env)
> +		if os.path.exists(self.settings["chroot_path"] + self.settings["local_overlay"]):
> +			cmd("rm -rf " + self.settings["chroot_path"] + self.settings["local_overlay"],
> +				"Could not remove " + self.settings["local_overlay"], env=self.env)
>  			cmd("sed -i '/^PORTDIR_OVERLAY/d' "+self.settings["chroot_path"]+\
>  				"/etc/portage/make.conf",\
>  				"Could not remove PORTDIR_OVERLAY from make.conf",env=self.env)
> 

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