diff options
Diffstat (limited to 'src/core')
| -rw-r--r-- | src/core/condition.c | 33 | ||||
| -rw-r--r-- | src/core/load-fragment-gperf.gperf.m4 | 1 |
2 files changed, 34 insertions, 0 deletions
diff --git a/src/core/condition.c b/src/core/condition.c index 833bcdf302..410fb36797 100644 --- a/src/core/condition.c +++ b/src/core/condition.c @@ -90,6 +90,36 @@ static bool condition_test_capability(Condition *c) { return !!(capabilities & (1ULL << value)) == !c->negate; } +static bool condition_test_needs_update(Condition *c) { + const char *p; + struct stat usr, other; + + assert(c); + assert(c->parameter); + assert(c->type == CONDITION_NEEDS_UPDATE); + + /* If the file system is read-only we shouldn't suggest an update */ + if (path_is_read_only_fs(c->parameter) > 0) + return c->negate; + + /* Any other failure means we should allow the condition to be true, + * so that we rather invoke too many update tools then too + * few. */ + + if (!path_is_absolute(c->parameter)) + return !c->negate; + + p = strappenda(c->parameter, "/.updated"); + if (lstat(p, &other) < 0) + return !c->negate; + + if (lstat("/usr/", &usr) < 0) + return !c->negate; + + return (usr.st_mtim.tv_sec > other.st_mtim.tv_sec || + (usr.st_mtim.tv_sec == other.st_mtim.tv_sec && usr.st_mtim.tv_nsec > other.st_mtim.tv_nsec)) == !c->negate; +} + static bool condition_test(Condition *c) { assert(c); @@ -169,6 +199,9 @@ static bool condition_test(Condition *c) { case CONDITION_ARCHITECTURE: return condition_test_architecture(c); + case CONDITION_NEEDS_UPDATE: + return condition_test_needs_update(c); + case CONDITION_NULL: return !c->negate; diff --git a/src/core/load-fragment-gperf.gperf.m4 b/src/core/load-fragment-gperf.gperf.m4 index 2d98bba419..d97c5c6f5b 100644 --- a/src/core/load-fragment-gperf.gperf.m4 +++ b/src/core/load-fragment-gperf.gperf.m4 @@ -161,6 +161,7 @@ Unit.ConditionPathIsReadWrite, config_parse_unit_condition_path, CONDITION_P Unit.ConditionDirectoryNotEmpty, config_parse_unit_condition_path, CONDITION_DIRECTORY_NOT_EMPTY, 0 Unit.ConditionFileNotEmpty, config_parse_unit_condition_path, CONDITION_FILE_NOT_EMPTY, 0 Unit.ConditionFileIsExecutable, config_parse_unit_condition_path, CONDITION_FILE_IS_EXECUTABLE, 0 +Unit.ConditionNeedsUpdate, config_parse_unit_condition_path, CONDITION_NEEDS_UPDATE, 0 Unit.ConditionKernelCommandLine, config_parse_unit_condition_string, CONDITION_KERNEL_COMMAND_LINE, 0 Unit.ConditionArchitecture, config_parse_unit_condition_string, CONDITION_ARCHITECTURE, 0 Unit.ConditionVirtualization, config_parse_unit_condition_string, CONDITION_VIRTUALIZATION, 0 |