forked from lix-project/lix
* Get --dump' and --delete' to work again.
This commit is contained in:
Eelco Dolstra
parent
85a913a3e7
commit
a279137327
68
src/nix.cc
68
src/nix.cc
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@ -10,7 +10,7 @@
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typedef void (* Operation) (Strings opFlags, Strings opArgs);
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typedef enum { atpHash, atpName, atpPath, atpUnknown } ArgType;
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typedef enum { atpHash, atpPath, atpUnknown } ArgType;
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static ArgType argType = atpUnknown;
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@ -21,13 +21,12 @@ static ArgType argType = atpUnknown;
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Operations:
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--install / -i: install (or `realise') values
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--delete / -d: delete values
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--query / -q: query stored values
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--add: add values
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--install / -i: realise a Nix expression
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--delete / -d: delete paths from the Nix store
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--add / -A: copy a path to the Nix store
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--dump: dump a value as a Nix archive
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--restore: restore a value from a Nix archive
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--dump: dump a path as a Nix archive
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--restore: restore a path from a Nix archive
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--init: initialise the Nix database
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--verify: verify Nix structures
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@ -35,21 +34,10 @@ static ArgType argType = atpUnknown;
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--version: output version information
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--help: display help
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Source selection for operations that work on values:
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Source selection for --install, --dump:
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--file / -f: by file name
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--hash / -h: by hash
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--name / -n: by symbolic name
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Query suboptions:
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Selection:
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--all / -a: query all stored values, otherwise given values
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Information:
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--info / -i: general value information
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Options:
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@ -57,8 +45,8 @@ static ArgType argType = atpUnknown;
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*/
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/* Parse the `-f' / `-h' / `-n' flags, i.e., the type of value
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arguments. These flags are deleted from the referenced vector. */
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/* Parse the `-f' / `-h' / flags, i.e., the type of arguments. These
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flags are deleted from the referenced vector. */
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static void getArgType(Strings & flags)
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{
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for (Strings::iterator it = flags.begin();
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@ -68,14 +56,9 @@ static void getArgType(Strings & flags)
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ArgType tp;
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if (arg == "--hash" || arg == "-h")
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tp = atpHash;
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else if (arg == "--name" || arg == "-n")
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tp = atpName;
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else if (arg == "--file" || arg == "-f")
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tp = atpPath;
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else {
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it++;
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continue;
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}
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else { it++; continue; }
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if (argType != atpUnknown)
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throw UsageError("only one argument type specified may be specified");
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argType = tp;
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@ -86,7 +69,8 @@ static void getArgType(Strings & flags)
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}
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/* Install values. */
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/* Realise (or install) paths from the given Nix fstate
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expressions. */
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static void opInstall(Strings opFlags, Strings opArgs)
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{
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getArgType(opFlags);
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@ -98,8 +82,6 @@ static void opInstall(Strings opFlags, Strings opArgs)
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Hash hash;
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if (argType == atpHash)
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hash = parseHash(*it);
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else if (argType == atpName)
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throw Error("not implemented");
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else if (argType == atpPath) {
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string path;
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addToStore(*it, path, hash);
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@ -112,28 +94,16 @@ static void opInstall(Strings opFlags, Strings opArgs)
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static void opDelete(Strings opFlags, Strings opArgs)
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{
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#if 0
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getArgType(opFlags);
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if (!opFlags.empty()) throw UsageError("unknown flag");
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for (Strings::iterator it = opArgs.begin();
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it != opArgs.end(); it++)
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{
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Hash hash;
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if (argType == atpHash)
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hash = parseHash(*it);
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else if (argType == atpName)
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throw Error("not implemented");
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else
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throw Error("invalid argument type");
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deleteValue(hash);
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}
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#endif
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deleteFromStore(absPath(*it));
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}
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/* Add values to the Nix values directory and print the hashes of
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those values. */
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/* Add paths to the Nix values directory and print the hashes of those
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paths. */
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static void opAdd(Strings opFlags, Strings opArgs)
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{
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getArgType(opFlags);
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@ -162,11 +132,10 @@ struct StdoutSink : DumpSink
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};
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/* Dump a value as a Nix archive. The archive is written to standard
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/* Dump a path as a Nix archive. The archive is written to standard
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output. */
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static void opDump(Strings opFlags, Strings opArgs)
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{
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#if 0
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getArgType(opFlags);
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if (!opFlags.empty()) throw UsageError("unknown flag");
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if (opArgs.size() != 1) throw UsageError("only one argument allowed");
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@ -176,14 +145,11 @@ static void opDump(Strings opFlags, Strings opArgs)
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string path;
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if (argType == atpHash)
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path = queryValuePath(parseHash(arg));
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else if (argType == atpName)
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throw Error("not implemented");
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path = queryPathByHash(parseHash(arg));
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else if (argType == atpPath)
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path = arg;
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dumpPath(path, sink);
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#endif
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}
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