From: Petr Štetiar <ynezz@true.cz>
Date: Sat, 23 Dec 2023 07:33:21 +0000 (+0000)
Subject: phase2: fix invalid escape sequence flake8 warning in checksums step
X-Git-Tag: v13~5
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=f02393e0f7ed923664ef52644b48ad95fa70d55e;p=buildbot.git

phase2: fix invalid escape sequence flake8 warning in checksums step

Resolved a flake8 linting warning related to an invalid escape sequence
in the ShellCommand for calculating checksums:

 phase2/master.cfg:739:28: W605 invalid escape sequence '\('
 phase2/master.cfg:739:32: W605 invalid escape sequence '\)'
 phase2/master.cfg:739:35: W605 invalid escape sequence '\('
 phase2/master.cfg:739:39: W605 invalid escape sequence '\)'

The warning was caused by the use of unescaped parentheses in a regular
expression within a sed command.

Use a raw string (with an 'r' prefix) to treat backslashes as literal
characters, ensuring that the regular expression is correctly
interpreted and flake8 does not raise a warning.

This fix ensures that the code adheres to Python's string handling best
practices and maintains the integrity of the regular expression
functionality.

Fixes: f0faed2970dd ("phase2: compute checksums")
Signed-off-by: Petr Štetiar <ynezz@true.cz>
---

diff --git a/phase2/master.cfg b/phase2/master.cfg
index fa585d7..deebc28 100644
--- a/phase2/master.cfg
+++ b/phase2/master.cfg
@@ -575,7 +575,7 @@ for arch in arches:
 		command = "cd bin/packages/%s; " %(arch[0])
 		+ "find . -type f -not -name 'sha256sums' -printf \"%P\n\" | "
 		+ "sort | xargs -r ../../../staging_dir/host/bin/mkhash -n sha256 | "
-		+ "sed -ne 's!^\(.*\) \(.*\)$!\1 *\2!p' > sha256sums",
+		+ r"sed -ne 's!^\(.*\) \(.*\)$!\1 *\2!p' > sha256sums",
 		haltOnFailure = True
 	))