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2004-06-21 * Wrap calls to registerSubstitute() in a single transaction toEelco Dolstra1-2/+2
improve throughput. * Don't build the `substitute-rev' table for now, since it caused Theta(N^2) time and log file consumption when adding N substitutes. Maybe we can do without it.
2004-06-20 * Re-enable support for substitutes in the normaliser.Eelco Dolstra1-2/+26
* A better substitute mechanism. Instead of generating a store expression for each store path for which we have a substitute, we can have a single store expression that builds a generic program that is invoked to build the desired store path, which is passed as an argument. This means that operations like `nix-pull' only produce O(1) files instead of O(N) files in the store when registering N substitutes. (It consumes O(N) database storage, of course, but that's not a performance problem). * Added a test for the substitute mechanism. * `nix-store --substitute' reads the substitutes from standard input, instead of from the command line. This prevents us from running into the kernel's limit on command line length.
2004-04-14 * Be stricter in verifying store paths.Eelco Dolstra1-0/+3
2003-11-22 * Maintain integrity of the substitute and successor mappings whenEelco Dolstra1-3/+0
deleting a path in the store. * Allow absolute paths in Nix expressions. * Get nix-prefetch-url to work again. * Various other fixes.
2003-11-18 * libnix -> libstore.Eelco Dolstra1-0/+72