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Merge pull request #338 from syntheticpp/empty-log-file

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no recompacting needed when log file is empty
This commit is contained in:
Evan Martin 2012-06-18 11:51:24 -07:00
commit 0d892830aa
1 changed files with 7 additions and 3 deletions
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10
src/build_log.cc
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@ -223,7 +223,8 @@ bool BuildLog::Load(const string& path, string* err) {
int total_entry_count = 0;
LineReader reader(file);
char* line_start, *line_end;
char* line_start = 0;
char* line_end = 0;
while (reader.ReadLine(&line_start, &line_end)) {
if (!log_version) {
log_version = 1; // Assume by default.
@ -295,6 +296,11 @@ bool BuildLog::Load(const string& path, string* err) {
entry->command_hash = LogEntry::HashCommand(StringPiece(start,
end - start));
}
fclose(file);
if (!line_start) {
return true; // file was empty
}
// Decide whether it's time to rebuild the log:
// - if we're upgrading versions
@ -308,8 +314,6 @@ bool BuildLog::Load(const string& path, string* err) {
needs_recompaction_ = true;
}
fclose(file);
return true;
}