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@ -8,6 +8,7 @@ import std.path;
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import std.array;
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import std.string;
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import std.stdio;
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import std.typecons;
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import core.sys.posix.unistd;
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import core.stdc.string;
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@ -32,6 +33,8 @@ class FileSystem : Operations
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private bool _noCommon;
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enum exclusionChar = '!';
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this(string source, TagProvider[] tagProviders, bool noCommon)
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{
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_source = source;
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@ -76,7 +79,8 @@ class FileSystem : Operations
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stat.st_uid = _sourceStat.st_uid;
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stat.st_gid = _sourceStat.st_gid;
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if(path == "/" || isTag(path.baseName))
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//excluded tags are also valid directories
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if(path == "/" || isTag(path.baseName.stripLeft(exclusionChar)))
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{
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stat.st_mode = _sourceStat.st_mode;
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}
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@ -111,6 +115,15 @@ class FileSystem : Operations
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return _fileLinkCache[name];
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}
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Tuple!(bool, "exclude", string, "name")[] pathToTagTuples(const(char)[] path)
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{
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//map the path to a range of tuples with an exclude (bool) and a name (string) field for each tag in the path
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return pathSplitter(path)
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.array[1..$]
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.map!(tag => tuple!("exclude", "name")(tag[0] == exclusionChar, cast(immutable)tag.stripLeft(exclusionChar)))
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.array;
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}
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string[] getTags(const(char)[] path)
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{
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if(path == "/")
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@ -119,12 +132,13 @@ class FileSystem : Operations
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}
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else
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{
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auto tags = pathSplitter(path).array[1..$];
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auto tags = pathToTagTuples(path);
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auto filePairs = _tagCache.byKeyValue().filter!(a => tags.all!(b => a.value.canFind(b)));
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//filter pairs with tags that (should not be excluded && can be found) || (should be excluded && can't be found)
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auto filePairs = _tagCache.byKeyValue().filter!(a => tags.all!(b => !b.exclude == a.value.canFind(b.name)));
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return filePairs.map!(a => a.value)
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.joiner
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.filter!(a => !tags.canFind(a))
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.filter!(a => !tags.map!(tag => tag.name).canFind(a)) //don't match tags that are already in the path
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.filter!(a => !_noCommon || !filePairs.all!(f => f.value.canFind(a)))
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.array
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.sort()
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@ -141,10 +155,11 @@ class FileSystem : Operations
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}
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else
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{
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auto tags = pathSplitter(path).array[1..$];
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auto tags = pathToTagTuples(path);
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//filter files with tags that (should not be excluded && can be found) || (should be excluded && can't be found)
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return _tagCache.byKeyValue()
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.filter!(a => tags.all!(b => a.value.canFind(b)))
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.filter!(a => tags.all!(b => !b.exclude == a.value.canFind(b.name)))
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.map!(a => a.key.baseName)
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.array;
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}
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