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progbase: respect SOURCE_DATE_EPOCH in -write-man option

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rdb 2021-01-18 14:19:39 +01:00
parent 3e1d98c105
commit 6520b68c2c
1 changed files with 17 additions and 5 deletions
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22
pandatool/src/progbase/programBase.cxx
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@ -201,14 +201,26 @@ write_man_page(std::ostream &out) {
// Generate a date string for inclusion into the footer.
char date_str[256];
date_str[0] = 0;
time_t current_time = time(nullptr);
time_t current_time;
tm *today = nullptr;
if (current_time != (time_t) -1) {
tm *today = localtime(&current_time);
if (today == nullptr || 0 == strftime(date_str, 256, "%d %B %Y", today)) {
date_str[0] = 0;
// This variable overrides the time we write to the footer.
const char *source_date_epoch = getenv("SOURCE_DATE_EPOCH");
if (source_date_epoch == nullptr || source_date_epoch[0] == 0 ||
(current_time = (time_t)strtoll(source_date_epoch, nullptr, 10)) <= 0) {
current_time = time(nullptr);
if (current_time != (time_t)-1) {
today = localtime(&current_time);
}
}
else {
// Format as UTC to avoid inconsistency being introduced due to timezones.
today = gmtime(&current_time);
}
if (today == nullptr || 0 == strftime(date_str, 256, "%d %B %Y", today)) {
date_str[0] = 0;
}
out << " 1 \"" << date_str << "\" \""
<< PandaSystem::get_version_string() << "\" Panda3D\n";