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Besides directorys, single files can now also be versioned (or excluded)

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This commit is contained in:
Wouter den Breejen 2007-07-09 11:59:29 +00:00
parent bc2fbabc12
commit 9257f16c85
5 changed files with 53 additions and 10 deletions
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24
src/libstore/db.cc
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@ -513,7 +513,7 @@ void Database::setStateReferences(const Transaction & txn, TableId table,
setStrings(txn, table, key, references);
}
bool Database::lookupHighestRevivison(const Strings & keys, const Path & statePath, string & key)
bool Database::lookupHighestRevivison(const Strings & keys, const Path & statePath, string & key, int lowerthan)
{
int highestRev = -1;
@ -527,8 +527,15 @@ bool Database::lookupHighestRevivison(const Strings & keys, const Path & statePa
Path getStatePath;
int getRevision;
splitStatePathRevision(*i, getStatePath, getRevision);
if(getRevision > highestRev)
highestRev = getRevision;
if(getRevision > highestRev){
if(lowerthan != -1){
if(getRevision <= lowerthan) //if we have an uppper limit, see to it that we downt go over it
highestRev = getRevision;
}
else
highestRev = getRevision;
}
}
if(highestRev == -1) //no records found (TODO throw error?)
@ -546,7 +553,7 @@ bool Database::queryStateReferences(const Transaction & txn, TableId table,
Strings keys;
enumTable(txn, table, keys); //get all revisions
//Check if this revision exists key in the table
//Check if this revision exists key in the table, if it doesnt well find the highest key lower than it
string key = makeStatePathRevision(statePath, revision);
bool found = false;
for (Strings::const_iterator i = keys.begin(); i != keys.end(); ++i) {
@ -554,12 +561,17 @@ bool Database::queryStateReferences(const Transaction & txn, TableId table,
found = true;
}
key = ""; //reset
if(revision == -1 || (!found)){
key = "";
if(revision == -1){
bool foundsomething = lookupHighestRevivison(keys, statePath, key);
if(!foundsomething)
return false;
}
else if(!found){
bool foundsomething = lookupHighestRevivison(keys, statePath, key, -1);
if(!foundsomething)
return false;
}
else
key = makeStatePathRevision(statePath, revision);

2
src/libstore/db.hh
View file

@ -61,7 +61,7 @@ private:
void open2(const string & path, bool removeOldEnv);
/* TODO */
bool lookupHighestRevivison(const Strings & keys, const Path & statePath, string & key);
bool lookupHighestRevivison(const Strings & keys, const Path & statePath, string & key, int lowerthan = -1);
/* TODO */
int getNewRevisionNumber(const Transaction & txn, TableId table, const Path & statePath);

7
src/libstore/store-state.cc
View file

@ -69,8 +69,13 @@ void createStateDirs(const DerivationStateOutputDirs & stateOutputDirs, const De
DerivationStateOutputDir d = i->second;
string thisdir = d.path;
//Check if it is a file
if(thisdir.substr(thisdir.length() -1 , thisdir.length()) != "/")
continue;
Path fullstatedir = stateDir + "/" + thisdir;
Strings p_args;
p_args.push_back("-p");
p_args.push_back(fullstatedir);