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perf: add cache for system utils that fetch debian_version, debian_version_id, system_arch, system_virt

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This commit is contained in:
Alexandre Aubin 2024-04-10 23:08:31 +02:00
parent 26bead701d
commit 2e3b4ae1f2
1 changed files with 25 additions and 5 deletions
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30
src/utils/system.py
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@ -29,13 +29,25 @@ YUNOHOST_PACKAGES = ["yunohost", "yunohost-admin", "moulinette", "ssowat"]
def debian_version():
return check_output(
'grep "^VERSION_CODENAME=" /etc/os-release 2>/dev/null | cut -d= -f2'
)
if debian_version.cache is None:
debian_version.cache = check_output(
'grep "^VERSION_CODENAME=" /etc/os-release 2>/dev/null | cut -d= -f2'
)
return debian_version.cache
def debian_version_id():
if debian_version_id.cache is None:
debian_version_id.cache = check_output(
'grep "^VERSION_ID=" /etc/os-release 2>/dev/null | cut -d= -f2'
).strip('"')
return debian_version_id.cache
def system_arch():
return check_output("dpkg --print-architecture 2>/dev/null")
if system_arch.cache is None:
system_arch.cache = check_output("dpkg --print-architecture 2>/dev/null")
return system_arch.cache
def system_virt():
@ -46,7 +58,15 @@ def system_virt():
# Detect virt technology (if not bare metal) and arch
# Gotta have this "|| true" because it systemd-detect-virt return 'none'
# with an error code on bare metal ~.~
return check_output("systemd-detect-virt 2>/dev/null || true")
if system_virt.cache is None:
system_virt.cache = check_output("systemd-detect-virt 2>/dev/null || true")
return system_virt.cache
debian_version.cache = None
debian_version_id.cache = None
system_arch.cache = None
system_virt.cache = None
def free_space_in_directory(dirpath):