diff options
Diffstat (limited to 'src/libstore/store-api.cc')
| -rw-r--r-- | src/libstore/store-api.cc | 24 |
1 files changed, 21 insertions, 3 deletions
diff --git a/src/libstore/store-api.cc b/src/libstore/store-api.cc index 4b04f5751..d67ff2c77 100644 --- a/src/libstore/store-api.cc +++ b/src/libstore/store-api.cc @@ -72,6 +72,13 @@ Path followLinksToStorePath(const Path & path) } +string storePathToName(const Path & path) +{ + assertStorePath(path); + return string(path, nixStore.size() + 34); +} + + void checkStoreName(const string & name) { string validChars = "+-._?="; @@ -101,7 +108,9 @@ void checkStoreName(const string & name) <name> = a human readable name for the path, typically obtained from the name attribute of the derivation, or the name of the - source file from which the store path is created + source file from which the store path is created. For derivation + outputs other than the default "out" output, the string "-<id>" + is suffixed to <name>. <h> = base-32 representation of the first 160 bits of a SHA-256 hash of <s>; the hash part of the store name @@ -120,11 +129,12 @@ void checkStoreName(const string & name) "source" for paths copied to the store using addToStore() when recursive = true and hashAlgo = "sha256" - "output:out" + "output:<id>" for either the outputs created by derivations, OR paths copied to the store using addToStore() with recursive != true or hashAlgo != "sha256" (in that case "source" is used; it's - silly, but it's done that way for compatibility). + silly, but it's done that way for compatibility). <id> is the + name of the output (usually, "out"). <h2> = base-16 representation of a SHA-256 hash of: if <type> = "text:...": @@ -174,6 +184,14 @@ Path makeStorePath(const string & type, } +Path makeOutputPath(const string & id, + const Hash & hash, const string & name) +{ + return makeStorePath("output:" + id, hash, + name + (id == "out" ? "" : "-" + id)); +} + + Path makeFixedOutputPath(bool recursive, HashType hashAlgo, Hash hash, string name) { |