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* Canonicalization: when hashing directories, sort the directory

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entries by name.
This commit is contained in:
Eelco Dolstra 2003-06-16 16:16:09 +00:00
parent 2f04e7102e
commit 727beb798a
1 changed files with 14 additions and 8 deletions
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22
src/hash.cc
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@ -154,24 +154,30 @@ static void dumpEntries(const string & path, DumpSink & sink)
{
DIR * dir = opendir(path.c_str());
if (!dir) throw SysError("opening directory " + path);
Strings names;
struct dirent * dirent;
/* !!! sort entries */
while (errno = 0, dirent = readdir(dir)) {
string name = dirent->d_name;
if (name == "." || name == "..") continue;
names.push_back(name);
}
if (errno) throw SysError("reading directory " + path);
sort(names.begin(), names.end());
for (Strings::iterator it = names.begin();
it != names.end(); it++)
{
writeString("entry", sink);
writeString("(", sink);
writeString("name", sink);
writeString(name, sink);
writeString(*it, sink);
writeString("file", sink);
dumpPath(path + "/" + name, sink);
dumpPath(path + "/" + *it, sink);
writeString(")", sink);
}
if (errno) throw SysError("reading directory " + path);
closedir(dir); /* !!! close on exception */
}