* Basic work on allowing derive expressions to build multiple paths.
This is not entirely trivial since this introduces the possibility of mutual recursion. * Made normal forms self-contained. * Use unique ids, not content hashes, for content referencing.
This commit is contained in:
Eelco Dolstra
parent
8898e86b4f
commit
f5b6fa5256
240
src/fstate.cc
240
src/fstate.cc
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@ -154,55 +154,47 @@ FState hash2fstate(Hash hash)
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}
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ATerm termFromHash(const Hash & hash, string * p)
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ATerm termFromId(const FSId & id, string * p)
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{
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string path = expandHash(hash);
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string path = expandId(id);
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if (p) *p = path;
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ATerm t = ATreadFromNamedFile(path.c_str());
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if (!t) throw Error(format("cannot read aterm %1%") % path);
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if (!t) throw Error(format("cannot read aterm from `%1%'") % path);
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return t;
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}
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Hash writeTerm(ATerm t, const string & suffix, string * p)
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FSId writeTerm(ATerm t, const string & suffix, string * p)
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{
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string path = nixStore + "/tmp.nix"; /* !!! */
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FSId id = hashTerm(t);
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string path = canonPath(nixStore + "/" +
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(string) id + suffix + ".nix");
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if (!ATwriteToNamedTextFile(t, path.c_str()))
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throw Error(format("cannot write aterm %1%") % path);
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Hash hash = hashPath(path);
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string path2 = canonPath(nixStore + "/" +
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(string) hash + suffix + ".nix");
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if (rename(path.c_str(), path2.c_str()) == -1)
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throw SysError(format("renaming %1% to %2%") % path % path2);
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registerPath(path2, hash);
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if (p) *p = path2;
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return hash;
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registerPath(path, id);
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if (p) *p = path;
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return id;
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}
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void registerSuccessor(const Hash & fsHash, const Hash & scHash)
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void registerSuccessor(const FSId & id1, const FSId & id2)
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{
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setDB(nixDB, dbSuccessors, fsHash, scHash);
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setDB(nixDB, dbSuccessors, id1, id2);
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}
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FState storeSuccessor(FState fs, FState sc, StringSet & paths)
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static FSId storeSuccessor(const FSId & id1, FState sc)
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{
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if (fs == sc) return sc;
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string path;
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Hash fsHash = hashTerm(fs);
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Hash scHash = writeTerm(sc, "-s-" + (string) fsHash, &path);
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registerSuccessor(fsHash, scHash);
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paths.insert(path);
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FSId id2 = writeTerm(sc, "-s-" + (string) id1, 0);
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registerSuccessor(id1, id2);
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return id2;
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}
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#if 0
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return ATmake("Include(<str>)", ((string) scHash).c_str());
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#endif
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return sc;
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}
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static FState realise(FState fs, StringSet & paths)
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{
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char * s1, * s2, * s3;
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@ -421,3 +413,193 @@ void fstateRefs(FState fs, StringSet & paths)
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{
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fstateRefs2(fs, paths);
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}
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#endif
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static void parseIds(ATermList ids, FSIds & out)
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{
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while (!ATisEmpty(ids)) {
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char * s;
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ATerm id = ATgetFirst(ids);
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if (!ATmatch(id, "<str>", &s))
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throw badTerm("not an id", id);
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out.push_back(parseHash(s));
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debug(s);
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ids = ATgetNext(ids);
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}
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}
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/* Parse a slice. */
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static Slice parseSlice(FState fs)
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{
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Slice slice;
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ATermList roots, elems;
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if (!ATmatch(fs, "Slice([<list>], [<list>])", &roots, &elems))
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throw badTerm("not a slice", fs);
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parseIds(roots, slice.roots);
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while (!ATisEmpty(elems)) {
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char * s1, * s2;
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ATermList refs;
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ATerm t = ATgetFirst(elems);
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if (!ATmatch(t, "(<str>, <str>, [<list>])", &s1, &s2, &refs))
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throw badTerm("not a slice element", t);
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SliceElem elem;
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elem.path = s1;
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elem.id = parseHash(s2);
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parseIds(refs, elem.refs);
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slice.elems.push_back(elem);
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elems = ATgetNext(elems);
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}
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return slice;
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}
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Slice normaliseFState(FSId id)
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{
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debug(format("normalising fstate"));
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Nest nest(true);
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/* Try to substitute $id$ by any known successors in order to
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speed up the rewrite process. */
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string idSucc;
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while (queryDB(nixDB, dbSuccessors, id, idSucc)) {
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debug(format("successor %1% -> %2%") % (string) id % idSucc);
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id = parseHash(idSucc);
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}
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/* Get the fstate expression. */
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FState fs = termFromId(id);
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/* Already in normal form (i.e., a slice)? */
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if (ATgetType(fs) == AT_APPL &&
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(string) ATgetName(ATgetAFun(fs)) == "Slice")
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return parseSlice(fs);
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/* Then we it's a Derive node. */
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ATermList outs, ins, bnds;
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char * builder;
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char * platform;
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if (!ATmatch(fs, "Derive([<list>], [<list>], <str>, <str>, [<list>])",
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&outs, &ins, &builder, &platform, &bnds))
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throw badTerm("not a derive", fs);
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/* Right platform? */
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checkPlatform(platform);
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/* Realise inputs (and remember all input paths). */
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FSIds inIds;
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parseIds(ins, inIds);
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SliceElems inElems; /* !!! duplicates */
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StringSet inPathsSet;
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for (FSIds::iterator i = inIds.begin(); i != inIds.end(); i++) {
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Slice slice = normaliseFState(*i);
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realiseSlice(slice);
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for (SliceElems::iterator j = slice.elems.begin();
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j != slice.elems.end(); j++)
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{
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inElems.push_back(*j);
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inPathsSet.insert(j->path);
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}
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}
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Strings inPaths;
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copy(inPathsSet.begin(), inPathsSet.end(),
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inserter(inPaths, inPaths.begin()));
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/* Build the environment. */
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Environment env;
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while (!ATisEmpty(bnds)) {
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char * s1, * s2;
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ATerm bnd = ATgetFirst(bnds);
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if (!ATmatch(bnd, "(<str>, <str>)", &s1, &s2))
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throw badTerm("tuple of strings expected", bnd);
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env[s1] = s2;
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bnds = ATgetNext(bnds);
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}
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/* Check that none of the output paths exist. */
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typedef pair<string, FSId> OutPath;
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list<OutPath> outPaths;
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while (!ATisEmpty(outs)) {
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ATerm t = ATgetFirst(outs);
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char * s1, * s2;
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if (!ATmatch(t, "(<str>, <str>)", &s1, &s2))
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throw badTerm("string expected", t);
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outPaths.push_back(OutPath(s1, parseHash(s2)));
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outs = ATgetNext(outs);
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}
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for (list<OutPath>::iterator i = outPaths.begin();
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i != outPaths.end(); i++)
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if (pathExists(i->first))
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throw Error(format("path `%1%' exists") % i->first);
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/* Run the builder. */
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runProgram(builder, env);
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Slice slice;
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/* Check whether the output paths were created, and register each
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one. */
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for (list<OutPath>::iterator i = outPaths.begin();
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i != outPaths.end(); i++)
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{
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string path = i->first;
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if (!pathExists(path))
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throw Error(format("path `%1%' does not exist") % path);
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registerPath(path, i->second);
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slice.roots.push_back(i->second);
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Strings outPaths = filterReferences(path, inPaths);
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}
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return slice;
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}
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void realiseSlice(Slice slice)
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{
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debug(format("realising slice"));
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Nest nest(true);
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if (slice.elems.size() == 0)
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throw Error("empty slice");
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/* Perhaps all paths already contain the right id? */
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bool missing = false;
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for (SliceElems::iterator i = slice.elems.begin();
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i != slice.elems.end(); i++)
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{
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SliceElem elem = *i;
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string id;
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if (!queryDB(nixDB, dbPath2Id, elem.path, id)) {
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if (pathExists(elem.path))
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throw Error(format("path `%1%' obstructed") % elem.path);
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missing = true;
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break;
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}
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if (parseHash(id) != elem.id)
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throw Error(format("path `%1%' obstructed") % elem.path);
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}
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if (!missing) {
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debug(format("already installed"));
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return;
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}
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/* For each element, expand its id at its path. */
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for (SliceElems::iterator i = slice.elems.begin();
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i != slice.elems.end(); i++)
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{
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SliceElem elem = *i;
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expandId(elem.id, elem.path);
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}
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}
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@ -8,6 +8,7 @@ extern "C" {
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}
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#include "hash.hh"
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#include "store.hh"
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using namespace std;
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@ -17,33 +18,24 @@ using namespace std;
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A Nix file system state expression, or FState, describes a
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(partial) state of the file system.
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Path : Path * Content * [FState] -> FState
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Slice : [Id] * [(Path, Id, [Id])] -> FState
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(update)
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Path(path, content, refs) specifies a file object (its full path
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and contents), along with all file objects referenced by it (that
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is, that it has pointers to). We assume that all files are
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self-referential. This prevents us from having to deal with
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cycles.
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Derive : String * Path * [FState] * Path * [(String, String)] -> FState
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Derive : [(Path, Id)] * [FStateId] * Path * [(String, String)] -> FState
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(update)
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Derive(platform, builder, ins, outs, env) specifies the creation of
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new file objects (in paths declared by `outs') by the execution of
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a program `builder' on a platform `platform'. This execution takes
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place in a file system state given by `ins'. `env' specifies a
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mapping of strings to strings.
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[ !!! NOT IMPLEMENTED
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Regular : String -> Content
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Directory : [(String, Content)] -> Content
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(this complicates unambiguous normalisation)
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]
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CHash : Hash -> Content
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File content, given either in situ, or through an external reference
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to the file system or url-space decorated with a hash to preserve
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purity.
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A FState expression is in {\em $f$-normal form} if all Derive nodes
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have been reduced to File nodes.
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@ -63,7 +55,26 @@ typedef ATerm Content;
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typedef set<string> StringSet;
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typedef list<FSId> FSIds;
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struct SliceElem
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{
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string path;
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FSId id;
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FSIds refs;
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};
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typedef list<SliceElem> SliceElems;
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struct Slice
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{
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FSIds roots;
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SliceElems elems;
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};
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#if 0
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/* Realise an fstate expression in the file system. This requires
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execution of all Derive() nodes. */
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FState realiseFState(FState fs, StringSet & paths);
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@ -74,6 +85,8 @@ string fstatePath(FState fs);
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/* Return the paths referenced by fstate expression. */
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void fstateRefs(FState fs, StringSet & paths);
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#endif
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/* Return a canonical textual representation of an expression. */
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string printTerm(ATerm t);
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@ -85,16 +98,22 @@ Error badTerm(const format & f, ATerm t);
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/* Hash an aterm. */
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Hash hashTerm(ATerm t);
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FState hash2fstate(Hash hash);
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/* Read an aterm from disk, given its hash. */
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ATerm termFromHash(const Hash & hash, string * p = 0);
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/* Read an aterm from disk, given its id. */
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ATerm termFromId(const FSId & id, string * p = 0);
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/* Write an aterm to the Nix store directory, and return its hash. */
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Hash writeTerm(ATerm t, const string & suffix, string * p = 0);
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FSId writeTerm(ATerm t, const string & suffix, string * p = 0);
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/* Register a successor. */
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void registerSuccessor(const Hash & fsHash, const Hash & scHash);
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void registerSuccessor(const FSId & id1, const FSId & id2);
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/* Normalise an fstate-expression, that is, return an equivalent
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Slice. */
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Slice normaliseFState(FSId id);
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/* Realise a Slice in the file system. */
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void realiseSlice(Slice slice);
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#endif /* !__FSTATE_H */
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@ -2,7 +2,8 @@
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#include "db.hh"
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string dbHash2Paths = "hash2paths";
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string dbPath2Id = "path2id";
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string dbId2Paths = "id2paths";
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string dbSuccessors = "successors";
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string dbSubstitutes = "substitutes";
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@ -15,7 +16,8 @@ string nixDB = "/UNINIT";
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void initDB()
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{
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createDB(nixDB, dbHash2Paths);
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createDB(nixDB, dbPath2Id);
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createDB(nixDB, dbId2Paths);
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createDB(nixDB, dbSuccessors);
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createDB(nixDB, dbSubstitutes);
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}
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@ -8,33 +8,36 @@ using namespace std;
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/* Database names. */
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/* dbHash2Paths :: Hash -> [Path]
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/* dbPath2Id :: Path -> FSId
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Maintains a mapping from hashes to lists of paths. This is what we
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use to resolve Hash(hash) content descriptors. */
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extern string dbHash2Paths;
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Each pair (p, id) records that path $p$ contains an expansion of
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$id$. */
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extern string dbPath2Id;
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/* dbSuccessors :: Hash -> Hash
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Each pair (h1, h2) in this mapping records the fact that a
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successor of an fstate expression with hash h1 is stored in a file
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with hash h2.
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/* dbId2Paths :: FSId -> [Path]
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A mapping from ids to lists of paths. */
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extern string dbId2Paths;
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/* dbSuccessors :: FSId -> FSId
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Each pair $(id_1, id_2)$ in this mapping records the fact that a
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successor of an fstate expression stored in a file with identifier
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$id_1$ is stored in a file with identifier $id_2$.
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Note that a term $y$ is successor of $x$ iff there exists a
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sequence of rewrite steps that rewrites $x$ into $y$.
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Also note that instead of a successor, $y$ can be any term
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equivalent to $x$, that is, reducing to the same result, as long as
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$x$ is equal to or a successor of $y$. (This is useful, e.g., for
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shared derivate caching over the network).
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*/
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extern string dbSuccessors;
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/* dbSubstitutes :: Hash -> [Hash]
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Each pair $(h, [hs])$ tells Nix that it can realise any of the
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fstate expressions referenced by the hashes in $hs$ to obtain a Nix
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archive that, when unpacked, will produce a path with hash $h$.
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/* dbSubstitutes :: FSId -> [FSId]
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Each pair $(id, [ids])$ tells Nix that it can realise any of the
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fstate expressions referenced by the identifiers in $ids$ to
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generate a path with identifier $id$.
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The main purpose of this is for distributed caching of derivates.
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One system can compute a derivate with hash $h$ and put it on a
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91
src/store.cc
91
src/store.cc
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@ -84,39 +84,36 @@ void copyPath(string src, string dst)
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}
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void registerSubstitute(const Hash & srcHash, const Hash & subHash)
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void registerSubstitute(const FSId & srcId, const FSId & subId)
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{
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Strings subs;
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queryListDB(nixDB, dbSubstitutes, srcHash, subs); /* non-existence = ok */
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queryListDB(nixDB, dbSubstitutes, srcId, subs); /* non-existence = ok */
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for (Strings::iterator it = subs.begin(); it != subs.end(); it++)
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if (parseHash(*it) == subHash) return;
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if (parseHash(*it) == subId) return;
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subs.push_back(subHash);
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subs.push_back(subId);
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setListDB(nixDB, dbSubstitutes, srcHash, subs);
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setListDB(nixDB, dbSubstitutes, srcId, subs);
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}
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Hash registerPath(const string & _path, Hash hash)
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void registerPath(const string & _path, const FSId & id)
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{
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string path(canonPath(_path));
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if (hash == Hash()) hash = hashPath(path);
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setDB(nixDB, dbPath2Id, path, id);
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|
||||
Strings paths;
|
||||
queryListDB(nixDB, dbHash2Paths, hash, paths); /* non-existence = ok */
|
||||
queryListDB(nixDB, dbId2Paths, id, paths); /* non-existence = ok */
|
||||
|
||||
for (Strings::iterator it = paths.begin();
|
||||
it != paths.end(); it++)
|
||||
if (*it == path) goto exists;
|
||||
if (*it == path) return;
|
||||
|
||||
paths.push_back(path);
|
||||
|
||||
setListDB(nixDB, dbHash2Paths, hash, paths);
|
||||
|
||||
exists:
|
||||
return hash;
|
||||
setListDB(nixDB, dbId2Paths, id, paths);
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -124,10 +121,15 @@ void unregisterPath(const string & _path)
|
|||
{
|
||||
string path(canonPath(_path));
|
||||
|
||||
Hash hash = hashPath(path);
|
||||
string _id;
|
||||
if (!queryDB(nixDB, dbPath2Id, path, _id))
|
||||
return;
|
||||
FSId id(parseHash(_id));
|
||||
|
||||
/* begin transaction */
|
||||
|
||||
Strings paths, paths2;
|
||||
queryListDB(nixDB, dbHash2Paths, hash, paths); /* non-existence = ok */
|
||||
queryListDB(nixDB, dbId2Paths, id, paths); /* non-existence = ok */
|
||||
|
||||
bool changed = false;
|
||||
for (Strings::iterator it = paths.begin();
|
||||
|
|
@ -135,7 +137,9 @@ void unregisterPath(const string & _path)
|
|||
if (*it != path) paths2.push_back(*it); else changed = true;
|
||||
|
||||
if (changed)
|
||||
setListDB(nixDB, dbHash2Paths, hash, paths2);
|
||||
setListDB(nixDB, dbId2Paths, id, paths2);
|
||||
|
||||
/* end transaction */
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -146,7 +150,7 @@ bool isInPrefix(const string & path, const string & _prefix)
|
|||
}
|
||||
|
||||
|
||||
string expandHash(const Hash & hash, const string & target,
|
||||
string expandId(const FSId & id, const string & target,
|
||||
const string & prefix)
|
||||
{
|
||||
Strings paths;
|
||||
|
|
@ -154,9 +158,7 @@ string expandHash(const Hash & hash, const string & target,
|
|||
if (!target.empty() && !isInPrefix(target, prefix))
|
||||
abort();
|
||||
|
||||
queryListDB(nixDB, dbHash2Paths, hash, paths);
|
||||
|
||||
/* !!! we shouldn't check for staleness by default --- too slow */
|
||||
queryListDB(nixDB, dbId2Paths, id, paths);
|
||||
|
||||
/* Pick one equal to `target'. */
|
||||
if (!target.empty()) {
|
||||
|
|
@ -165,16 +167,8 @@ string expandHash(const Hash & hash, const string & target,
|
|||
i != paths.end(); i++)
|
||||
{
|
||||
string path = *i;
|
||||
try {
|
||||
#if 0
|
||||
if (path == target && hashPath(path) == hash)
|
||||
#endif
|
||||
if (path == target && pathExists(path))
|
||||
return path;
|
||||
} catch (Error & e) {
|
||||
debug(format("stale path: %1%") % e.msg());
|
||||
/* try next one */
|
||||
}
|
||||
if (path == target && pathExists(path))
|
||||
return path;
|
||||
}
|
||||
|
||||
}
|
||||
|
|
@ -184,28 +178,26 @@ string expandHash(const Hash & hash, const string & target,
|
|||
it != paths.end(); it++)
|
||||
{
|
||||
string path = *it;
|
||||
try {
|
||||
if (isInPrefix(path, prefix) && hashPath(path) == hash) {
|
||||
if (target.empty())
|
||||
return path;
|
||||
else {
|
||||
copyPath(path, target);
|
||||
return target;
|
||||
}
|
||||
if (isInPrefix(path, prefix) && pathExists(path)) {
|
||||
if (target.empty())
|
||||
return path;
|
||||
else {
|
||||
copyPath(path, target);
|
||||
registerPath(target, id);
|
||||
return target;
|
||||
}
|
||||
} catch (Error & e) {
|
||||
debug(format("stale path: %1%") % e.msg());
|
||||
/* try next one */
|
||||
}
|
||||
}
|
||||
|
||||
#if 0
|
||||
/* Try to realise the substitutes. */
|
||||
|
||||
Strings subs;
|
||||
queryListDB(nixDB, dbSubstitutes, hash, subs); /* non-existence = ok */
|
||||
queryListDB(nixDB, dbSubstitutes, id, subs); /* non-existence = ok */
|
||||
|
||||
for (Strings::iterator it = subs.begin(); it != subs.end(); it++) {
|
||||
StringSet dummy;
|
||||
realiseSlice(normaliseFState(*it));
|
||||
|
||||
FState nf = realiseFState(hash2fstate(parseHash(*it)), dummy);
|
||||
string path = fstatePath(nf);
|
||||
|
||||
|
|
@ -222,29 +214,30 @@ string expandHash(const Hash & hash, const string & target,
|
|||
return target;
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
throw Error(format("cannot expand hash `%1%'") % (string) hash);
|
||||
throw Error(format("cannot expand id `%1%'") % (string) id);
|
||||
}
|
||||
|
||||
|
||||
void addToStore(string srcPath, string & dstPath, Hash & hash,
|
||||
void addToStore(string srcPath, string & dstPath, FSId & id,
|
||||
bool deterministicName)
|
||||
{
|
||||
srcPath = absPath(srcPath);
|
||||
hash = hashPath(srcPath);
|
||||
id = hashPath(srcPath);
|
||||
|
||||
string baseName = baseNameOf(srcPath);
|
||||
dstPath = canonPath(nixStore + "/" + (string) hash + "-" + baseName);
|
||||
dstPath = canonPath(nixStore + "/" + (string) id + "-" + baseName);
|
||||
|
||||
try {
|
||||
/* !!! should not use the substitutes! */
|
||||
dstPath = expandHash(hash, deterministicName ? dstPath : "", nixStore);
|
||||
dstPath = expandId(id, deterministicName ? dstPath : "", nixStore);
|
||||
return;
|
||||
} catch (...) {
|
||||
}
|
||||
|
||||
copyPath(srcPath, dstPath);
|
||||
registerPath(dstPath, hash);
|
||||
registerPath(dstPath, id);
|
||||
}
|
||||
|
||||
|
||||
|
|
|
|||
19
src/store.hh
19
src/store.hh
|
|
@ -8,29 +8,28 @@
|
|||
using namespace std;
|
||||
|
||||
|
||||
typedef Hash FSId;
|
||||
|
||||
|
||||
/* Copy a path recursively. */
|
||||
void copyPath(string src, string dst);
|
||||
|
||||
/* Register a substitute. */
|
||||
void registerSubstitute(const Hash & srcHash, const Hash & subHash);
|
||||
void registerSubstitute(const FSId & srcId, const FSId & subId);
|
||||
|
||||
/* Register a path keyed on its hash. */
|
||||
Hash registerPath(const string & path, Hash hash = Hash());
|
||||
/* Register a path keyed on its id. */
|
||||
void registerPath(const string & path, const FSId & id);
|
||||
|
||||
/* Return a path whose contents have the given hash. If target is
|
||||
not empty, ensure that such a path is realised in target (if
|
||||
necessary by copying from another location). If prefix is not
|
||||
empty, only return a path that is an descendent of prefix.
|
||||
|
||||
If no path with the given hash is known to exist in the file
|
||||
system,
|
||||
*/
|
||||
string expandHash(const Hash & hash, const string & target = "",
|
||||
empty, only return a path that is an descendent of prefix. */
|
||||
string expandId(const FSId & id, const string & target = "",
|
||||
const string & prefix = "/");
|
||||
|
||||
/* Copy a file to the nixStore directory and register it in dbRefs.
|
||||
Return the hash code of the value. */
|
||||
void addToStore(string srcPath, string & dstPath, Hash & hash,
|
||||
void addToStore(string srcPath, string & dstPath, FSId & id,
|
||||
bool deterministicName = false);
|
||||
|
||||
/* Delete a value from the nixStore directory. */
|
||||
|
|
|
|||
111
src/test.cc
111
src/test.cc
|
|
@ -11,14 +11,15 @@
|
|||
#include "globals.hh"
|
||||
|
||||
|
||||
void realise(FState fs)
|
||||
void realise(FSId id)
|
||||
{
|
||||
cout << format("%1% => %2%\n")
|
||||
% printTerm(fs)
|
||||
% printTerm(realiseFState(fs));
|
||||
cout << format("realising %1%\n") % (string) id;
|
||||
Slice slice = normaliseFState(id);
|
||||
realiseSlice(slice);
|
||||
}
|
||||
|
||||
|
||||
#if 0
|
||||
void realiseFail(FState fs)
|
||||
{
|
||||
try {
|
||||
|
|
@ -28,6 +29,7 @@ void realiseFail(FState fs)
|
|||
cout << "error (expected): " << e.what() << endl;
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
|
||||
struct MySink : DumpSink
|
||||
|
|
@ -111,54 +113,47 @@ void runTests()
|
|||
|
||||
/* Expression evaluation. */
|
||||
|
||||
#if 0
|
||||
eval(whNormalise,
|
||||
ATmake("Str(\"Hello World\")"));
|
||||
eval(whNormalise,
|
||||
ATmake("Bool(True)"));
|
||||
eval(whNormalise,
|
||||
ATmake("Bool(False)"));
|
||||
eval(whNormalise,
|
||||
ATmake("App(Lam(\"x\", Var(\"x\")), Str(\"Hello World\"))"));
|
||||
eval(whNormalise,
|
||||
ATmake("App(App(Lam(\"x\", Lam(\"y\", Var(\"x\"))), Str(\"Hello World\")), Str(\"Hallo Wereld\"))"));
|
||||
eval(whNormalise,
|
||||
ATmake("App(Lam(\"sys\", Lam(\"x\", [Var(\"x\"), Var(\"sys\")])), Str(\"i686-suse-linux\"))"));
|
||||
|
||||
evalFail(whNormalise,
|
||||
ATmake("Foo(123)"));
|
||||
|
||||
string builder1fn = absPath("./test-builder-1.sh");
|
||||
Hash builder1h = hashPath(builder1fn);
|
||||
|
||||
string fn1 = nixValues + "/builder-1.sh";
|
||||
Expr e1 = ATmake("Path(<str>, ExtFile(<str>, <str>), [])",
|
||||
fn1.c_str(),
|
||||
builder1h.c_str(),
|
||||
builder1fn.c_str());
|
||||
eval(fNormalise, e1);
|
||||
|
||||
string fn2 = nixValues + "/refer.txt";
|
||||
Expr e2 = ATmake("Path(<str>, Regular(<str>), [<term>])",
|
||||
fn2.c_str(),
|
||||
("I refer to " + fn1).c_str(),
|
||||
e1);
|
||||
eval(fNormalise, e2);
|
||||
|
||||
realise(e2);
|
||||
#endif
|
||||
|
||||
Hash builder1h;
|
||||
FSId builder1id;
|
||||
string builder1fn;
|
||||
addToStore("./test-builder-1.sh", builder1fn, builder1h);
|
||||
addToStore("./test-builder-1.sh", builder1fn, builder1id);
|
||||
|
||||
FState fs1 = ATmake(
|
||||
"Path(<str>, Hash(<str>), [])",
|
||||
"Slice([<str>], [(<str>, <str>, [])])",
|
||||
((string) builder1id).c_str(),
|
||||
builder1fn.c_str(),
|
||||
((string) builder1h).c_str());
|
||||
realise(fs1);
|
||||
realise(fs1);
|
||||
((string) builder1id).c_str());
|
||||
FSId fs1id = writeTerm(fs1, "", 0);
|
||||
|
||||
realise(fs1id);
|
||||
realise(fs1id);
|
||||
|
||||
FState fs2 = ATmake(
|
||||
"Slice([<str>], [(<str>, <str>, [])])",
|
||||
((string) builder1id).c_str(),
|
||||
(builder1fn + "_bla").c_str(),
|
||||
((string) builder1id).c_str());
|
||||
FSId fs2id = writeTerm(fs2, "", 0);
|
||||
|
||||
realise(fs2id);
|
||||
realise(fs2id);
|
||||
|
||||
string out1fn = nixStore + "/hello.txt";
|
||||
string out1id = hashString("foo"); /* !!! bad */
|
||||
FState fs3 = ATmake(
|
||||
"Derive([(<str>, <str>)], [<str>], <str>, <str>, [(\"out\", <str>)])",
|
||||
out1fn.c_str(),
|
||||
((string) out1id).c_str(),
|
||||
((string) fs1id).c_str(),
|
||||
((string) builder1fn).c_str(),
|
||||
thisSystem.c_str(),
|
||||
out1fn.c_str());
|
||||
debug(printTerm(fs3));
|
||||
FSId fs3id = writeTerm(fs3, "", 0);
|
||||
|
||||
realise(fs3id);
|
||||
realise(fs3id);
|
||||
|
||||
#if 0
|
||||
FState fs2 = ATmake(
|
||||
"Path(<str>, Hash(<str>), [])",
|
||||
(builder1fn + "_bla").c_str(),
|
||||
|
|
@ -175,28 +170,8 @@ void runTests()
|
|||
out1fn.c_str(),
|
||||
out1fn.c_str());
|
||||
realise(fs3);
|
||||
|
||||
#if 0
|
||||
Expr e1 = ATmake("Exec(Str(<str>), Hash(<str>), [])",
|
||||
thisSystem.c_str(), ((string) builder1).c_str());
|
||||
|
||||
eval(e1);
|
||||
|
||||
Hash builder2 = addValue("./test-builder-2.sh");
|
||||
|
||||
Expr e2 = ATmake(
|
||||
"Exec(Str(<str>), Hash(<str>), [Tup(Str(\"src\"), <term>)])",
|
||||
thisSystem.c_str(), ((string) builder2).c_str(), e1);
|
||||
|
||||
eval(e2);
|
||||
|
||||
Hash h3 = addValue("./test-expr-1.nix");
|
||||
Expr e3 = ATmake("Deref(Hash(<str>))", ((string) h3).c_str());
|
||||
|
||||
eval(e3);
|
||||
|
||||
deleteValue(h3);
|
||||
#endif
|
||||
|
||||
}
|
||||
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue