104 lines
3.2 KiB
Python
104 lines
3.2 KiB
Python
# Copyright 2023 Oliver Smith
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# SPDX-License-Identifier: GPL-3.0-or-later
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import os
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import time
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import pmb.helpers.run
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def replace(path, old, new):
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text = ""
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with open(path, "r", encoding="utf-8") as handle:
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text = handle.read()
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text = text.replace(old, new)
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with open(path, "w", encoding="utf-8") as handle:
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handle.write(text)
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def replace_apkbuild(args, pkgname, key, new, in_quotes=False):
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""" Replace one key=value line in an APKBUILD and verify it afterwards.
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:param pkgname: package name, e.g. "hello-world"
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:param key: key that should be replaced, e.g. "pkgver"
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:param new: new value
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:param in_quotes: expect the value to be in quotation marks ("") """
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# Read old value
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path = pmb.helpers.pmaports.find(args, pkgname) + "/APKBUILD"
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apkbuild = pmb.parse.apkbuild(path)
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old = apkbuild[key]
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# Prepare old/new strings
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if in_quotes:
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line_old = '{}="{}"'.format(key, old)
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line_new = '{}="{}"'.format(key, new)
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else:
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line_old = '{}={}'.format(key, old)
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line_new = '{}={}'.format(key, new)
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# Replace
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replace(path, "\n" + line_old + "\n", "\n" + line_new + "\n")
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# Verify
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del (pmb.helpers.other.cache["apkbuild"][path])
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apkbuild = pmb.parse.apkbuild(path)
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if apkbuild[key] != str(new):
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raise RuntimeError("Failed to set '{}' for pmaport '{}'. Make sure"
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" that there's a line with exactly the string '{}'"
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" and nothing else in: {}".format(key, pkgname,
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line_old, path))
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def is_up_to_date(path_sources, path_target=None, lastmod_target=None):
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"""
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Check if a file is up-to-date by comparing the last modified timestamps
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(just like make does it).
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:param path_sources: list of full paths to the source files
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:param path_target: full path to the target file
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:param lastmod_target: the timestamp of the target file. specify this as
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alternative to specifying path_target.
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"""
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if path_target and lastmod_target:
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raise RuntimeError(
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"Specify path_target *or* lastmod_target, not both!")
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lastmod_source = None
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for path_source in path_sources:
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lastmod = os.path.getmtime(path_source)
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if not lastmod_source or lastmod > lastmod_source:
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lastmod_source = lastmod
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if path_target:
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lastmod_target = os.path.getmtime(path_target)
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return lastmod_target >= lastmod_source
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def is_older_than(path, seconds):
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"""
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Check if a single file is older than a given amount of seconds.
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"""
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if not os.path.exists(path):
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return True
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lastmod = os.path.getmtime(path)
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return lastmod + seconds < time.time()
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def symlink(args, file, link):
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"""
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Checks if the symlink is already present, otherwise create it.
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"""
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if os.path.exists(link):
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if (os.path.islink(link) and
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os.path.realpath(os.readlink(link)) == os.path.realpath(file)):
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return
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raise RuntimeError("File exists: " + link)
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elif os.path.islink(link):
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os.unlink(link)
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# Create the symlink
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pmb.helpers.run.user(args, ["ln", "-s", file, link])
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