508 lines
16 KiB
Python
508 lines
16 KiB
Python
# These are shared utilities used
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import os
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import json
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import hashlib
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import shlex
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import subprocess
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import yaml
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import productmd.treeinfo
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from empanadas.common import Color
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class ArchCheck:
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"""
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Arches and their files
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"""
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archfile = {
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'x86_64': [
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'isolinux/vmlinuz',
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'images/grub.conf',
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'EFI/BOOT/BOOTX64.EFI'
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],
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'aarch64': [
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'EFI/BOOT/BOOTAA64.EFI'
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],
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'ppc64le': [
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'ppc/bootinfo.txt',
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'ppc/ppc64/vmlinuz'
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],
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's390x': [
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'generic.ins',
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'images/generic.prm'
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]
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}
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class Shared:
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"""
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Quick utilities that may be commonly used
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"""
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@staticmethod
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def get_checksum(path, hashtype, logger):
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"""
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Generates a checksum from the provided path by doing things in chunks.
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This way we don't do it in memory.
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"""
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try:
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checksum = hashlib.new(hashtype)
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except ValueError:
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logger.error("Invalid hash type: %s" % hashtype)
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return False
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try:
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input_file = open(path, "rb")
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except IOError as e:
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logger.error("Could not open file %s: %s" % (path, e))
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return False
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while True:
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chunk = input_file.read(8192)
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if not chunk:
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break
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checksum.update(chunk)
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input_file.close()
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stat = os.stat(path)
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base = os.path.basename(path)
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# This emulates our current syncing scripts that runs stat and
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# sha256sum and what not with a very specific output.
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return "%s: %s bytes\n%s (%s) = %s\n" % (
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base,
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stat.st_size,
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hashtype.upper(),
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base,
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checksum.hexdigest()
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)
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@staticmethod
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def treeinfo_new_write(
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file_path,
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distname,
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shortname,
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release,
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arch,
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time,
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repo
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):
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"""
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Writes really basic treeinfo, this is for single repository treeinfo
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data. This is usually called in the case of a fresh run and each repo
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needs one. This basic info may be overwritten later either by lorax
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data or a full run.
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"""
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ti = productmd.treeinfo.TreeInfo()
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ti.release.name = distname
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ti.release.short = shortname
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ti.release.version = release
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ti.tree.arch = arch
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ti.tree.build_timestamp = time
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# Variants (aka repos)
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variant = productmd.treeinfo.Variant(ti)
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variant.id = repo
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variant.uid = repo
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variant.name = repo
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variant.type = "variant"
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variant.paths.repository = "."
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variant.paths.packages = "Packages"
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ti.variants.add(variant)
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ti.dump(file_path)
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@staticmethod
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def treeinfo_modify_write(data, imagemap, logger):
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"""
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Modifies a specific treeinfo with already available data. This is in
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the case of modifying treeinfo for primary repos or images.
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"""
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arch = data['arch']
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variant = data['variant']
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variant_path = data['variant_path']
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checksum = data['checksum']
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distname = data['distname']
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fullname = data['fullname']
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shortname = data['shortname']
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release = data['release']
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timestamp = data['timestamp']
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os_or_ks = ''
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if '/os/' in variant_path or not imagemap['disc']:
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os_or_ks = 'os'
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if '/kickstart/' in variant_path:
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os_or_ks = 'kickstart'
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image = os.path.join(variant_path)
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treeinfo = os.path.join(image, '.treeinfo')
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discinfo = os.path.join(image, '.discinfo')
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mediarepo = os.path.join(image, 'media.repo')
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#imagemap = self.iso_map['images'][variant]
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primary = imagemap['variant']
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repos = imagemap['repos']
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is_disc = False
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if imagemap['disc']:
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is_disc = True
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discnum = 1
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# load up productmd
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ti = productmd.treeinfo.TreeInfo()
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ti.load(treeinfo)
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# Set the name
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ti.release.name = distname
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ti.release.short = shortname
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# Set the version (the initial lorax run does this, but we are setting
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# it just in case)
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ti.release.version = release
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# Assign the present images into a var as a copy. For each platform,
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# clear out the present dictionary. For each item and path in the
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# assigned var, assign it back to the platform dictionary. If the path
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# is empty, continue. Do checksums afterwards.
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plats = ti.images.images.copy()
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for platform in ti.images.images:
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ti.images.images[platform] = {}
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for i, p in plats[platform].items():
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if not p:
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continue
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if 'boot.iso' in i and is_disc:
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continue
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ti.images.images[platform][i] = p
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ti.checksums.add(p, checksum, root_dir=image)
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# stage2 checksums
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if ti.stage2.mainimage:
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ti.checksums.add(ti.stage2.mainimage, checksum, root_dir=image)
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if ti.stage2.instimage:
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ti.checksums.add(ti.stage2.instimage, checksum, root_dir=image)
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# If we are a disc, set the media section appropriately.
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if is_disc:
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ti.media.discnum = discnum
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ti.media.totaldiscs = discnum
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# Create variants
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# Note to self: There's a lot of legacy stuff running around for
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# Fedora, ELN, and RHEL in general. This is the general structure,
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# apparently. But there could be a chance it'll change. We may need to
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# put in a configuration to deal with it at some point.
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#ti.variants.variants.clear()
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for y in repos:
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if y in ti.variants.variants.keys():
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vari = ti.variants.variants[y]
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else:
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vari = productmd.treeinfo.Variant(ti)
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vari.id = y
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vari.uid = y
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vari.name = y
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vari.type = "variant"
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if is_disc:
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vari.paths.repository = y
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vari.paths.packages = y + "/Packages"
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else:
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if y == primary:
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vari.paths.repository = "."
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vari.paths.packages = "Packages"
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else:
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vari.paths.repository = "../../../" + y + "/" + arch + "/" + os_or_ks
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vari.paths.packages = "../../../" + y + "/" + arch + "/" + os_or_ks + "/Packages"
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if y not in ti.variants.variants.keys():
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ti.variants.add(vari)
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del vari
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# Set default variant
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logger.info('Writing treeinfo')
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ti.dump(treeinfo, main_variant=primary)
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# Set discinfo
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logger.info('Writing discinfo')
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Shared.discinfo_write(timestamp, fullname, arch, discinfo)
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# Set media.repo
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logger.info('Writing media.repo')
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Shared.media_repo_write(timestamp, fullname, mediarepo)
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@staticmethod
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def write_metadata(
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timestamp,
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datestamp,
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fullname,
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release,
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compose_id,
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file_path
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):
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metadata = {
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"header": {
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"name": "empanadas",
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"version": "0.2.0",
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"type": "toolkit",
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"maintainer": "SIG/Core"
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},
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"payload": {
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"compose": {
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"date": datestamp,
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"id": compose_id,
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"fullname": fullname,
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"release": release,
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"timestamp": timestamp
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}
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}
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}
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with open(file_path + ".json", "w+") as fp:
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json.dump(metadata, fp, indent=4)
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fp.close()
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with open(file_path + ".yaml", "w+") as yp:
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yaml.dump(metadata, yp)
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yp.close()
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@staticmethod
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def discinfo_write(timestamp, fullname, arch, file_path):
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"""
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Ensure discinfo is written correctly
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"""
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data = [
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"%s" % timestamp,
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"%s" % fullname,
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"%s" % arch,
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"ALL",
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""
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]
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with open(file_path, "w+") as f:
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f.write("\n".join(data))
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f.close()
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@staticmethod
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def media_repo_write(timestamp, fullname, file_path):
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"""
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Ensure media.repo exists
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"""
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data = [
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"[InstallMedia]",
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"name=%s" % fullname,
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"mediaid=%s" % timestamp,
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"metadata_expire=-1",
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"gpgcheck=0",
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"cost=500",
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"",
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]
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with open(file_path, "w") as f:
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f.write("\n".join(data))
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@staticmethod
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def generate_compose_dirs(
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compose_base,
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shortname,
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version,
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date_stamp,
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logger
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) -> str:
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"""
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Generate compose dirs for full runs
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"""
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compose_base_dir = os.path.join(
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compose_base,
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"{}-{}-{}".format(
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shortname,
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version,
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date_stamp
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)
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)
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logger.info('Creating compose directory %s' % compose_base_dir)
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if not os.path.exists(compose_base_dir):
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os.makedirs(compose_base_dir)
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return compose_base_dir
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@staticmethod
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def podman_cmd(logger) -> str:
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"""
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This generates the podman run command. This is in the case that we want
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to do reposyncs in parallel as we cannot reasonably run multiple
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instances of dnf reposync on a single system.
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"""
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cmd = None
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if os.path.exists("/usr/bin/podman"):
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cmd = "/usr/bin/podman"
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else:
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logger.error('/usr/bin/podman was not found. Good bye.')
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raise SystemExit("\n\n/usr/bin/podman was not found.\n\nPlease "
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" ensure that you have installed the necessary packages on "
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" this system. " + Color.BOLD + "Note that docker is not "
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"supported." + Color.END
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)
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return cmd
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@staticmethod
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def reposync_cmd(logger) -> str:
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"""
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This generates the reposync command. We don't support reposync by
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itself and will raise an error.
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:return: The path to the reposync command. If dnf exists, we'll use
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that. Otherwise, fail immediately.
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"""
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cmd = None
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if os.path.exists("/usr/bin/dnf"):
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cmd = "/usr/bin/dnf reposync"
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else:
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logger('/usr/bin/dnf was not found. Good bye.')
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raise SystemExit("/usr/bin/dnf was not found. \n\n/usr/bin/reposync "
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"is not sufficient and you are likely running on an el7 "
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"system or a grossly modified EL8+ system, " + Color.BOLD +
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"which tells us that you probably made changes to these tools "
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"expecting them to work and got to this point." + Color.END)
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return cmd
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@staticmethod
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def git_cmd(logger) -> str:
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"""
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This generates the git command. This is when we need to pull down extra
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files or do work from a git repository.
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"""
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cmd = None
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if os.path.exists("/usr/bin/git"):
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cmd = "/usr/bin/git"
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else:
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logger.error('/usr/bin/git was not found. Good bye.')
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raise SystemExit("\n\n/usr/bin/git was not found.\n\nPlease "
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" ensure that you have installed the necessary packages on "
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" this system. "
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)
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return cmd
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@staticmethod
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def generate_conf(data, logger, dest_path='/var/tmp') -> str:
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"""
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Generates the necessary repo conf file for the operation. This repo
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file should be temporary in nature. This will generate a repo file
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with all repos by default. If a repo is chosen for sync, that will be
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the only one synced.
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:param dest_path: The destination where the temporary conf goes
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:param repo: The repo object to create a file for
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"""
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fname = os.path.join(
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dest_path,
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"{}-{}-config.repo".format(data.shortname, data.major_version)
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)
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data.log.info('Generating the repo configuration: %s' % fname)
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if data.repo_base_url.startswith("/"):
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logger.error("Local file syncs are not supported.")
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raise SystemExit(Color.BOLD + "Local file syncs are not "
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"supported." + Color.END)
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prehashed = ''
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if data.hashed:
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prehashed = "hashed-"
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# create dest_path
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if not os.path.exists(dest_path):
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os.makedirs(dest_path, exist_ok=True)
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config_file = open(fname, "w+")
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repolist = []
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for repo in data.repos:
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constructed_url = '{}/{}/repo/{}{}/$basearch'.format(
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data.repo_base_url,
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data.project_id,
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prehashed,
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repo,
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)
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constructed_url_src = '{}/{}/repo/{}{}/src'.format(
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data.repo_base_url,
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data.project_id,
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prehashed,
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repo,
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)
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repodata = {
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'name': repo,
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'baseurl': constructed_url,
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'srcbaseurl': constructed_url_src,
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'gpgkey': data.extra_files['git_raw_path'] + data.extra_files['gpg'][data.gpgkey]
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}
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repolist.append(repodata)
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template = data.tmplenv.get_template('repoconfig.tmpl')
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output = template.render(repos=repolist)
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config_file.write(output)
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config_file.close()
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return fname
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@staticmethod
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def quick_sync(src, dest, logger, tmp_dir):
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"""
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Does a quick sync from one place to another. This determines the method
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in which will be used. We will look for fpsync and fall back to
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parallel | rsync if that is also available. It will fail if parallel is
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not available.
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Return true or false on completion?
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"""
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@staticmethod
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def simple_sync(src, dest):
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"""
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This is for simple syncs only, using rsync or copytree.
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"""
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@staticmethod
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def fpsync_method(src, dest, tmp_dir):
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"""
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Returns a list for the fpsync command
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"""
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cmd = '/usr/bin/fpsync'
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rsync_switches = '-av --numeric-ids --no-compress --chown=10004:10005'
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if not os.path.exists(cmd):
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message = 'fpsync not found'
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retval = 1
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return message, retval
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os.makedirs(tmp_dir, exist_ok=True)
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fpsync_cmd = '{} -o "{}" -n 18 -t {} {} {}'.format(
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cmd,
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rsync_switches,
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tmp_dir,
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src,
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dest
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)
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process = subprocess.call(
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shlex.split(fpsync_cmd),
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stdout=subprocess.DEVNULL,
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stderr=subprocess.DEVNULL,
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)
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if process != 0:
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message = 'Syncing (fpsync) failed'
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retval = process
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return message, retval
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if os.path.exists(dest):
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message = 'Syncing (fpsync) succeeded'
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retval = process
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else:
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message = 'Path synced does not seem to exist for some reason.'
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retval = 1
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return message, retval
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@staticmethod
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def rsync_method(src, dest):
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"""
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Returns a string for the rsync command plus parallel. Yes, this is a
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hack.
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"""
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find_cmd = '/usr/bin/find'
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parallel_cmd = '/usr/bin/parallel'
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rsync_cmd = '/usr/bin/rsync'
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switches = '-av --chown=10004:10005 --progress --relative --human-readable'
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os.makedirs(dest, exist_ok=True)
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