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createiso: Run hardlink on staged content

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Even if we want to break hardlinks from Koji volume, there may be files
that can be hardlinked and save some space on the media.

JIRA: COMPOSE-3482
Signed-off-by: Lubomír Sedlář <lsedlar@redhat.com>
This commit is contained in:
Jon Disnard 2019-04-16 13:03:16 +02:00 committed by Lubomír Sedlář
parent 1e7ec68bbd
commit 72b4969832
1 changed files with 16 additions and 0 deletions
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16
pungi/phases/createiso.py
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@ -451,6 +451,14 @@ def prepare_iso(compose, arch, variant, disc_num=1, disc_count=None, split_iso_d
break_hardlinks(
data, compose.paths.work.iso_staging_dir(arch, variant, filename)
)
# Create hardlinks for files with duplicate contents.
compose.log_debug(
"Creating hardlinks for ISO %s for %s.%s" % (filename, variant, arch)
)
create_hardlinks(
compose.paths.work.iso_staging_dir(arch, variant, filename),
log_file=compose.paths.log.log_file(arch, "iso-hardlink-%s.log" % variant.uid),
)
# TODO: /content /graft-points
gp = "%s-graft-points" % iso_dir
@ -504,3 +512,11 @@ def break_hardlinks(graft_points, staging_dir):
makedirs(os.path.dirname(dest_path))
shutil.copy2(graft_points[f], dest_path)
graft_points[f] = dest_path
def create_hardlinks(staging_dir, log_file):
"""Create hardlinks within the staging directory.
Should happen after break_hardlinks()
"""
cmd = ["hardlink", "-c", "-vv", staging_dir]
run(cmd, logfile=log_file, show_cmd=True)