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Subject[PATCH v2 5/5] checkkconfigsymbols: use arglist instead of cmd string
Date
Splitting a command string could lead to unintended arguments.  Use an
argument list in the execute() function instead.

Signed-off-by: Valentin Rothberg <valentinrothberg@gmail.com>
---
scripts/checkkconfigsymbols.py | 27 ++++++++++++++++-----------
1 file changed, 16 insertions(+), 11 deletions(-)

diff --git a/scripts/checkkconfigsymbols.py b/scripts/checkkconfigsymbols.py
index 4b54aa342ac9..a32e4da4c117 100755
--- a/scripts/checkkconfigsymbols.py
+++ b/scripts/checkkconfigsymbols.py
@@ -149,11 +149,11 @@ def main():
undefined_b = {}

# get undefined items before the commit
- execute("git reset --hard %s" % commit_a)
+ reset(commit_a)
undefined_a, _ = check_symbols(args.ignore)

# get undefined items for the commit
- execute("git reset --hard %s" % commit_b)
+ reset(commit_b)
undefined_b, defined = check_symbols(args.ignore)

# report cases that are present for the commit but not before
@@ -170,7 +170,7 @@ def main():
undefined[symbol] = files

# reset to head
- execute("git reset --hard %s" % head)
+ reset(head)

# default to check the entire tree
else:
@@ -202,6 +202,11 @@ def main():
print() # new line


+def reset(commit):
+ """Reset current git tree to %commit."""
+ execute(["git", "reset", "--hard", commit])
+
+
def yel(string):
"""
Color %string yellow.
@@ -219,25 +224,25 @@ def red(string):
def execute(cmd):
"""Execute %cmd and return stdout. Exit in case of error."""
try:
- cmdlist = cmd.split(" ")
- stdout = subprocess.check_output(cmdlist, stderr=subprocess.STDOUT, shell=False)
+ stdout = subprocess.check_output(cmd, stderr=subprocess.STDOUT, shell=False)
stdout = stdout.decode(errors='replace')
except subprocess.CalledProcessError as fail:
- exit("Failed to execute %s\n%s" % (cmd, fail))
+ exit(fail)
return stdout


def find_commits(symbol, diff):
"""Find commits changing %symbol in the given range of %diff."""
- commits = execute("git log --pretty=oneline --abbrev-commit -G %s %s"
- % (symbol, diff))
+ commits = execute(["git", "log", "--pretty=oneline",
+ "--abbrev-commit", "-G",
+ symbol, diff])
return [x for x in commits.split("\n") if x]


def tree_is_dirty():
"""Return true if the current working tree is dirty (i.e., if any file has
been added, deleted, modified, renamed or copied but not committed)."""
- stdout = execute("git status --porcelain")
+ stdout = execute(["git", "status", "--porcelain"])
for line in stdout:
if re.findall(r"[URMADC]{1}", line[:2]):
return True
@@ -246,7 +251,7 @@ def tree_is_dirty():

def get_head():
"""Return commit hash of current HEAD."""
- stdout = execute("git rev-parse HEAD")
+ stdout = execute(["git", "rev-parse", "HEAD"])
return stdout.strip('\n')


@@ -285,7 +290,7 @@ def find_sims(symbol, ignore, defined=[]):
def get_files():
"""Return a list of all files in the current git directory."""
# use 'git ls-files' to get the worklist
- stdout = execute("git ls-files")
+ stdout = execute(["git", "ls-files"])
if len(stdout) > 0 and stdout[-1] == "\n":
stdout = stdout[:-1]

--
2.9.3
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