pyrox.dev
linux_lqx, linux_zen: avoid unnecessary prefetch
If the version hasn't changed, there is no need to run nix_prefetch_git
(which is quite expensive for the large kernel repo).
+27
-2
pkgs/os-specific/linux/kernel/update-zen.py
+27
-2
pkgs/os-specific/linux/kernel/update-zen.py
···
78
print(result, end='')
79
80
81
if __name__ == "__main__":
82
if len(sys.argv) == 1:
83
panic("Update variant expected")
···
93
zen_version = zen_match.group(1)
94
zen_suffix = zen_match.group(2)
95
break
96
-
zen_hash = nix_prefetch_git('https://github.com/zen-kernel/zen-kernel.git', zen_tag)
97
-
update_file('zen-kernels.nix', variant, zen_version, zen_suffix, zen_hash)
···
78
print(result, end='')
79
80
81
+
def read_file(relpath, variant):
82
+
file_path = os.path.join(DIR, relpath)
83
+
re_version = re.compile(fr'^\s*version = "(.+)"; #{variant}')
84
+
re_suffix = re.compile(fr'^\s*suffix = "(.+)"; #{variant}')
85
+
version = None
86
+
suffix = None
87
+
with fileinput.FileInput(file_path, mode='r') as f:
88
+
for line in f:
89
+
version_match = re_version.match(line)
90
+
if version_match:
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+
version = version_match.group(1)
92
+
continue
93
+
94
+
suffix_match = re_suffix.match(line)
95
+
if suffix_match:
96
+
suffix = suffix_match.group(1)
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+
continue
98
+
99
+
if version and suffix:
100
+
break
101
+
return version, suffix
102
+
103
+
104
if __name__ == "__main__":
105
if len(sys.argv) == 1:
106
panic("Update variant expected")
···
116
zen_version = zen_match.group(1)
117
zen_suffix = zen_match.group(2)
118
break
119
+
old_version, old_suffix = read_file('zen-kernels.nix', variant)
120
+
if old_version != zen_version or old_suffix != zen_suffix:
121
+
zen_hash = nix_prefetch_git('https://github.com/zen-kernel/zen-kernel.git', zen_tag)
122
+
update_file('zen-kernels.nix', variant, zen_version, zen_suffix, zen_hash)