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[displaymanager] Check the TryExec key from the .desktop file

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This commit is contained in:
Adriaan de Groot 2019-09-25 12:41:37 +02:00
parent 38369634df
commit 01cd95512f
1 changed files with 24 additions and 0 deletions
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24
src/modules/displaymanager/main.py
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@ -51,6 +51,30 @@ class DesktopEnvironment:
self.executable = exec
self.desktop_file = desktop
def find_de_tryexec(self, root_mount_point, command):
if command.startswith("/"):
path = [""]
else:
path = ["/bin/", "/usr/bin/", "/sbin/", "/usr/local/bin/"]
for p in path:
absolute_path = "{!s}{!s}{!s}".format(root_mount_point, p, command)
if os.path.exists(absolute_path):
return absolute_path
return None
def find_tryexec(self, root_mount_point, absolute_desktop_file):
assert absolute_desktop_file.startswith(root_mount_point)
with open(absolute_desktop_file, "r") as f:
for tryexec_line in [x for x in f.readlines() if x.startswith("TryExec")]:
try:
key, value = tryexec_line.split("=")
if key.strip() == "TryExec":
return self.find_de_tryexec(root_mount_point, value)
except:
pass
return None
def find_desktop_file(self, root_mount_point):
x11_sessions = "{!s}/usr/share/xsessions/{!s}.desktop".format(root_mount_point, self.desktop_file)
wayland_sessions = "{!s}/usr/share/wayland-sessions/{!s}.desktop".format(root_mount_point, self.desktop_file)