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xdg-autostart-service: handle gnome autostart phase better on other desktops

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Autostart files which contain the line gnome-autostart-phase are currently
completely skipped by systemd. This is because these are handled internally by
gnome startup through other means.

The problem is a number of desktop files that need to run on KDE too have this
flag set. Ideally they should just create systemd user units, but we're not at
this point universally yet.

This patch changes the logic so if the flag is set, we set NotShowIn-gnome,
which in turn would just not load decided at runtime.

As an optimisation if we would get conflicting OnlyShowIn lines we still
skip the file completely.

Example:
  $ rg 'Exec|Autostart-Phase' /etc/xdg/autostart/gnome-keyring-pkcs11.desktop
  Exec=/usr/bin/gnome-keyring-daemon --start --components=pkcs11
  X-GNOME-Autostart-Phase=PreDisplayServer

  $ cat '/tmp/xxx/app-gnome\x2dkeyring\x2dpkcs11@autostart.service'
  # Automatically generated by systemd-xdg-autostart-generator
  [Unit]
  SourcePath=/etc/xdg/autostart/gnome-keyring-pkcs11.desktop
  ...
  [Service]
  ...
  ExecCondition=/usr/lib/systemd/systemd-xdg-autostart-condition "Unity:MATE" "GNOME"

Co-authored-by: Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>
This commit is contained in:
David Edmundson 2023-02-08 13:28:50 +00:00 committed by Mike Yuan
parent b640e274a7
commit c63dde8099
1 changed files with 41 additions and 10 deletions
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51
src/xdg-autostart-generator/xdg-autostart-service.c
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@ -518,6 +518,7 @@ int xdg_autostart_service_generate_unit(
_cleanup_free_ char *path_escaped = NULL, *exec_start = NULL, *unit = NULL;
_cleanup_fclose_ FILE *f = NULL;
_cleanup_strv_free_ char **only_show_in = NULL, **not_show_in = NULL;
int r;
assert(service);
@ -544,6 +545,18 @@ int xdg_autostart_service_generate_unit(
return 0;
}
if (service->only_show_in) {
only_show_in = strv_copy(service->only_show_in);
if (!only_show_in)
return log_oom();
}
if (service->not_show_in) {
not_show_in = strv_copy(service->not_show_in);
if (!not_show_in)
return log_oom();
}
/* The TryExec key cannot be checked properly from the systemd unit, it is trivial to check using
* find_executable though. */
if (service->try_exec) {
@ -563,9 +576,27 @@ int xdg_autostart_service_generate_unit(
}
if (service->gnome_autostart_phase) {
/* There is no explicit value for the "Application" phase. */
log_debug("%s: not generating unit, startup phases are not supported.", service->path);
return 0;
/* There is no explicit value for the "Application" phase.
*
* On GNOME secondary startup mechanism handles desktop files with startup phases set.
* We want to mark these as "NotShowIn=GNOME"
*
* If that means no-one will load them, we can get skip it entirely.
*/
if (strv_contains(only_show_in, "GNOME")) {
strv_remove(only_show_in, "GNOME");
if (strv_isempty(only_show_in)) {
log_debug("%s: GNOME startup phases are handled separately. Skipping.",
service->path);
return 0;
}
}
log_debug("%s: GNOME startup phases are handled seprately, marking as NotShowIn=GNOME.",
service->path);
if (strv_extend(&not_show_in, "GNOME") < 0)
return log_oom();
}
path_escaped = specifier_escape(service->path);
@ -623,16 +654,16 @@ int xdg_autostart_service_generate_unit(
}
/* Generate an ExecCondition to check $XDG_CURRENT_DESKTOP */
if (!strv_isempty(service->only_show_in) || !strv_isempty(service->not_show_in)) {
_cleanup_free_ char *only_show_in = NULL, *not_show_in = NULL, *e_only_show_in = NULL, *e_not_show_in = NULL;
if (!strv_isempty(only_show_in) || !strv_isempty(not_show_in)) {
_cleanup_free_ char *only_show_in_string = NULL, *not_show_in_string = NULL, *e_only_show_in = NULL, *e_not_show_in = NULL;
only_show_in = strv_join(service->only_show_in, ":");
not_show_in = strv_join(service->not_show_in, ":");
if (!only_show_in || !not_show_in)
only_show_in_string = strv_join(only_show_in, ":");
not_show_in_string = strv_join(not_show_in, ":");
if (!only_show_in_string || !not_show_in_string)
return log_oom();
e_only_show_in = cescape(only_show_in);
e_not_show_in = cescape(not_show_in);
e_only_show_in = cescape(only_show_in_string);
e_not_show_in = cescape(not_show_in_string);
if (!e_only_show_in || !e_not_show_in)
return log_oom();