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portable: add a few more useful debug log messages

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When attaching and /etc/systemd/system.attached can't be created or used
(eg: dead symlink) the logs are pretty much useless as even at debug
level there's no indication of what is going wrong.
Add some debug logs, and return a more specific error string over D-Bus.

(cherry picked from commit 80d95fcd6e1947a7887b96b22a32dbca115baac9)
This commit is contained in:
Luca Boccassi 2022-11-23 16:06:48 +00:00 committed by Zbigniew Jędrzejewski-Szmek
parent bcd42b3c88
commit 79f161ac65
1 changed files with 3 additions and 3 deletions
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6
src/portable/portable.c
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@ -1131,7 +1131,7 @@ static int attach_unit_file(
(void) mkdir_parents(where, 0755);
if (mkdir(where, 0755) < 0) {
if (errno != EEXIST)
return -errno;
return log_debug_errno(errno, "Failed to create attach directory %s: %m", where);
} else
(void) portable_changes_add(changes, n_changes, PORTABLE_MKDIR, where, NULL);
@ -1145,7 +1145,7 @@ static int attach_unit_file(
if (mkdir(dropin_dir, 0755) < 0) {
if (errno != EEXIST)
return -errno;
return log_debug_errno(errno, "Failed to create drop-in directory %s: %m", dropin_dir);
} else
(void) portable_changes_add(changes, n_changes, PORTABLE_MKDIR, dropin_dir, NULL);
@ -1392,7 +1392,7 @@ int portable_attach(
r = attach_unit_file(&paths, image->path, image->type, extension_images,
item, profile, flags, changes, n_changes);
if (r < 0)
return r;
return sd_bus_error_set_errnof(error, r, "Failed to attach unit '%s': %m", item->name);
}
/* We don't care too much for the image symlink, it's just a convenience thing, it's not necessary for proper