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Rename tmpdir to target and always preserve it, dropping --preserve

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There is nothing temporary about our "tmpdir" - its sole purpose is to
contain the final product of the bootstrap process. Thus, removing it
at the end of bootstrap amounts to doing the entire process for nothing.

To remedy this, --tmpdir is renamed --target, keeping the -t short form,
and defaulting to "target" instead of "tmp" to make its purpose clearer.
The --preserve option is removed, as the target is now always preserved.
This commit is contained in:
Gábor Stefanik 2023-12-26 04:28:47 +01:00
parent 9179f4bd01
commit 81e3123262
5 changed files with 79 additions and 91 deletions
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60
lib/generator.py
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@ -29,26 +29,26 @@ class Generator():
self.external_sources = external_sources
self.repo_path = repo_path
self.source_manifest = self.get_source_manifest(not self.external_sources)
self.tmp_dir = None
self.target_dir = None
self.external_dir = None
def reuse(self, tmpdir):
def reuse(self, target):
"""
Reuse a previously prepared bwrap environment for further stages.
"""
self.tmp_dir = tmpdir.path
self.external_dir = os.path.join(self.tmp_dir, 'external')
self.target_dir = target.path
self.external_dir = os.path.join(self.target_dir, 'external')
self.distfiles()
def prepare(self, tmpdir, using_kernel=False, kernel_bootstrap=False, target_size=0):
def prepare(self, target, using_kernel=False, kernel_bootstrap=False, target_size=0):
"""
Prepare basic media of live-bootstrap.
/steps -- contains steps to be built
/ -- contains seed to allow steps to be built, containing custom
scripts and stage0-posix
"""
self.tmp_dir = tmpdir.path
self.external_dir = os.path.join(self.tmp_dir, 'external')
self.target_dir = target.path
self.external_dir = os.path.join(self.target_dir, 'external')
# We use ext3 here; ext4 actually has a variety of extensions that
# have been added with varying levels of recency
@ -59,33 +59,33 @@ class Generator():
# argument matrix ... or we could just use ext3 instead which
# is effectively universally the same
if kernel_bootstrap:
init_path = os.path.join(self.tmp_dir, 'init')
init_path = os.path.join(self.target_dir, 'init')
os.mkdir(init_path)
self.tmp_dir = init_path
self.target_dir = init_path
if self.repo_path or self.external_sources:
tmpdir.add_disk("external", filesystem="ext3")
tmpdir.mount_disk("external", "external")
target.add_disk("external", filesystem="ext3")
target.mount_disk("external", "external")
else:
self.external_dir = os.path.join(self.tmp_dir, 'external')
self.external_dir = os.path.join(self.target_dir, 'external')
elif using_kernel:
self.tmp_dir = os.path.join(self.tmp_dir, 'disk')
tmpdir.add_disk("disk",
self.target_dir = os.path.join(self.target_dir, 'disk')
target.add_disk("disk",
filesystem="ext3",
size=(target_size + "M") if target_size else "16G",
bootable=True)
tmpdir.mount_disk("disk", "disk")
self.external_dir = os.path.join(self.tmp_dir, 'external')
target.mount_disk("disk", "disk")
self.external_dir = os.path.join(self.target_dir, 'external')
os.makedirs(self.external_dir, exist_ok=True)
if self.early_preseed:
# Extract tar containing preseed
with tarfile.open(self.early_preseed, "r") as seed:
seed.extractall(self.tmp_dir)
seed.extractall(self.target_dir)
shutil.copy2(os.path.join(self.git_dir, 'seed', 'preseeded.kaem'),
os.path.join(self.tmp_dir, 'kaem.x86'))
os.path.join(self.target_dir, 'kaem.x86'))
else:
self.stage0_posix()
self.seed()
@ -101,25 +101,25 @@ class Generator():
shutil.copytree(self.repo_path, repo_dir)
if kernel_bootstrap:
self.create_builder_hex0_disk_image(self.tmp_dir + '.img', target_size)
self.create_builder_hex0_disk_image(self.target_dir + '.img', target_size)
if kernel_bootstrap and (self.external_sources or self.repo_path):
tmpdir.umount_disk('external')
target.umount_disk('external')
elif using_kernel:
tmpdir.umount_disk('disk')
target.umount_disk('disk')
def steps(self):
"""Copy in steps."""
self.get_packages()
shutil.copytree(os.path.join(self.git_dir, 'steps'), os.path.join(self.tmp_dir, 'steps'))
shutil.copytree(os.path.join(self.git_dir, 'steps'), os.path.join(self.target_dir, 'steps'))
def stage0_posix(self):
"""Copy in all of the stage0-posix"""
stage0_posix_base_dir = os.path.join(self.git_dir, 'seed', 'stage0-posix')
for entry in os.listdir(stage0_posix_base_dir):
orig = os.path.join(stage0_posix_base_dir, entry)
target = os.path.join(self.tmp_dir, entry)
target = os.path.join(self.target_dir, entry)
if os.path.isfile(orig):
shutil.copy2(orig, target)
else:
@ -128,14 +128,14 @@ class Generator():
arch = stage0_arch_map.get(self.arch, self.arch)
kaem_optional_seed = os.path.join(self.git_dir, 'seed', 'stage0-posix', 'bootstrap-seeds',
'POSIX', arch, 'kaem-optional-seed')
shutil.copy2(kaem_optional_seed, os.path.join(self.tmp_dir, 'init'))
shutil.copy2(kaem_optional_seed, os.path.join(self.target_dir, 'init'))
def seed(self):
"""Copy in extra seed files"""
seed_dir = os.path.join(self.git_dir, 'seed')
for entry in os.listdir(seed_dir):
if os.path.isfile(os.path.join(seed_dir, entry)):
shutil.copy2(os.path.join(seed_dir, entry), os.path.join(self.tmp_dir, entry))
shutil.copy2(os.path.join(seed_dir, entry), os.path.join(self.target_dir, entry))
@staticmethod
def add_fiwix_files(file_list_path, dirpath):
@ -149,14 +149,14 @@ class Generator():
def create_fiwix_file_list(self):
"""Create a list of files to populate Fiwix file system"""
file_list_path = os.path.join(self.tmp_dir, 'steps', 'lwext4-1.0.0-lb1',
file_list_path = os.path.join(self.target_dir, 'steps', 'lwext4-1.0.0-lb1',
'files', 'fiwix-file-list.txt')
shutil.copyfile(os.path.join(self.tmp_dir, 'steps', 'lwext4-1.0.0-lb1',
shutil.copyfile(os.path.join(self.target_dir, 'steps', 'lwext4-1.0.0-lb1',
'files', 'early-artifacts-needed-after-fiwix.txt'),
file_list_path)
save_cwd = os.getcwd()
os.chdir(self.tmp_dir)
os.chdir(self.target_dir)
self.add_fiwix_files(file_list_path, 'steps')
self.add_fiwix_files(file_list_path, 'distfiles')
os.chdir(save_cwd)
@ -170,7 +170,7 @@ class Generator():
shutil.copy2(os.path.join(self.distfiles_dir, file),
os.path.join(out, file))
early_distfile_dir = os.path.join(self.tmp_dir, 'external', 'distfiles')
early_distfile_dir = os.path.join(self.target_dir, 'external', 'distfiles')
main_distfile_dir = os.path.join(self.external_dir, 'distfiles')
if early_distfile_dir != main_distfile_dir:
@ -217,7 +217,7 @@ class Generator():
"""Append srcfs file system to disk image"""
save_cwd = os.getcwd()
os.chdir(self.tmp_dir)
os.chdir(self.target_dir)
self.output_tree(image_file, '.')
# Add commands to kick off stage0-posix