Make ProjectAnalyzer a solver param, not the sm

This was really always the intended model - there's no reason a
SourceManager needs to be permanently coupled with just one analyzer.
It's perfectly sufficient to provide one as an argument to the relevant
methods.

Fixes #195.

bridge.go

@@ -70,21 +70,17 @@ var mkBridge = func(s *solver, sm SourceManager, down bool) sourceBridge {
 	}
 }
 
-func (b *bridge) GetManifestAndLock(id ProjectIdentifier, v Version) (Manifest, Lock, error) {
+func (b *bridge) GetManifestAndLock(id ProjectIdentifier, v Version, an ProjectAnalyzer) (Manifest, Lock, error) {
 	if b.s.rd.isRoot(id.ProjectRoot) {
 		return b.s.rd.rm, b.s.rd.rl, nil
 	}
 
 	b.s.mtr.push("b-gmal")
-	m, l, e := b.sm.GetManifestAndLock(id, v)
+	m, l, e := b.sm.GetManifestAndLock(id, v, an)
 	b.s.mtr.pop()
 	return m, l, e
 }
 
-func (b *bridge) AnalyzerInfo() (string, int) {
-	return b.sm.AnalyzerInfo()
-}
-
 func (b *bridge) ListVersions(id ProjectIdentifier) ([]Version, error) {
 	if vl, exists := b.vlists[id]; exists {
 		return vl, nil

hash.go

@@ -104,7 +104,7 @@ func (s *solver) writeHashingInputs(w io.Writer) {
 	}
 
 	writeString(hhAnalyzer)
-	an, av := s.b.AnalyzerInfo()
+	an, av := s.rd.an.Info()
 	writeString(an)
 	writeString(strconv.Itoa(av))
 }

hash_test.go

@@ -16,6 +16,7 @@ func TestHashInputs(t *testing.T) {
 		RootDir:         string(fix.ds[0].n),
 		RootPackageTree: fix.rootTree(),
 		Manifest:        fix.rootmanifest(),
+		ProjectAnalyzer: naiveAnalyzer{},
 	}
 
 	s, err := Prepare(params, newdepspecSM(fix.ds, nil))
@@ -39,7 +40,7 @@ func TestHashInputs(t *testing.T) {
 		hhIgnores,
 		hhOverrides,
 		hhAnalyzer,
-		"depspec-sm-builtin",
+		"naive-analyzer",
 		"1",
 	}
 	for _, v := range elems {
@@ -67,6 +68,7 @@ func TestHashInputsReqsIgs(t *testing.T) {
 		RootDir:         string(fix.ds[0].n),
 		RootPackageTree: fix.rootTree(),
 		Manifest:        rm,
+		ProjectAnalyzer: naiveAnalyzer{},
 	}
 
 	s, err := Prepare(params, newdepspecSM(fix.ds, nil))
@@ -92,7 +94,7 @@ func TestHashInputsReqsIgs(t *testing.T) {
 		"foo",
 		hhOverrides,
 		hhAnalyzer,
-		"depspec-sm-builtin",
+		"naive-analyzer",
 		"1",
 	}
 	for _, v := range elems {
@@ -137,7 +139,7 @@ func TestHashInputsReqsIgs(t *testing.T) {
 		"foo",
 		hhOverrides,
 		hhAnalyzer,
-		"depspec-sm-builtin",
+		"naive-analyzer",
 		"1",
 	}
 	for _, v := range elems {
@@ -176,7 +178,7 @@ func TestHashInputsReqsIgs(t *testing.T) {
 		hhIgnores,
 		hhOverrides,
 		hhAnalyzer,
-		"depspec-sm-builtin",
+		"naive-analyzer",
 		"1",
 	}
 	for _, v := range elems {
@@ -198,6 +200,7 @@ func TestHashInputsOverrides(t *testing.T) {
 		RootDir:         string(basefix.ds[0].n),
 		RootPackageTree: basefix.rootTree(),
 		Manifest:        rm,
+		ProjectAnalyzer: naiveAnalyzer{},
 	}
 
 	table := []struct {
@@ -231,7 +234,7 @@ func TestHashInputsOverrides(t *testing.T) {
 				"c",
 				"car",
 				hhAnalyzer,
-				"depspec-sm-builtin",
+				"naive-analyzer",
 				"1",
 			},
 		},
@@ -262,7 +265,7 @@ func TestHashInputsOverrides(t *testing.T) {
 				"c",
 				"car",
 				hhAnalyzer,
-				"depspec-sm-builtin",
+				"naive-analyzer",
 				"1",
 			},
 		},
@@ -292,7 +295,7 @@ func TestHashInputsOverrides(t *testing.T) {
 				"c",
 				"car",
 				hhAnalyzer,
-				"depspec-sm-builtin",
+				"naive-analyzer",
 				"1",
 			},
 		},
@@ -320,7 +323,7 @@ func TestHashInputsOverrides(t *testing.T) {
 				"c",
 				"car",
 				hhAnalyzer,
-				"depspec-sm-builtin",
+				"naive-analyzer",
 				"1",
 			},
 		},
@@ -352,7 +355,7 @@ func TestHashInputsOverrides(t *testing.T) {
 				"d",
 				"b-foobranch",
 				hhAnalyzer,
-				"depspec-sm-builtin",
+				"naive-analyzer",
 				"1",
 			},
 		},
@@ -380,7 +383,7 @@ func TestHashInputsOverrides(t *testing.T) {
 				"d",
 				"b-foobranch",
 				hhAnalyzer,
-				"depspec-sm-builtin",
+				"naive-analyzer",
 				"1",
 			},
 		},
@@ -410,7 +413,7 @@ func TestHashInputsOverrides(t *testing.T) {
 				"d",
 				"b-foobranch",
 				hhAnalyzer,
-				"depspec-sm-builtin",
+				"naive-analyzer",
 				"1",
 			},
 		},
@@ -441,7 +444,7 @@ func TestHashInputsOverrides(t *testing.T) {
 				"d",
 				"b-foobranch",
 				hhAnalyzer,
-				"depspec-sm-builtin",
+				"naive-analyzer",
 				"1",
 			},
 		},
@@ -473,7 +476,7 @@ func TestHashInputsOverrides(t *testing.T) {
 				"d",
 				"b-foobranch",
 				hhAnalyzer,
-				"depspec-sm-builtin",
+				"naive-analyzer",
 				"1",
 			},
 		},
@@ -507,7 +510,7 @@ func TestHashInputsOverrides(t *testing.T) {
 				"d",
 				"b-foobranch",
 				hhAnalyzer,
-				"depspec-sm-builtin",
+				"naive-analyzer",
 				"1",
 			},
 		},

manager_test.go

@@ -47,7 +47,7 @@ func mkNaiveSM(t *testing.T) (*SourceMgr, func()) {
 		t.FailNow()
 	}
 
-	sm, err := NewSourceManager(naiveAnalyzer{}, cpath)
+	sm, err := NewSourceManager(cpath)
 	if err != nil {
 		t.Errorf("Unexpected error on SourceManager creation: %s", err)
 		t.FailNow()
@@ -66,7 +66,7 @@ func remakeNaiveSM(osm *SourceMgr, t *testing.T) (*SourceMgr, func()) {
 	cpath := osm.cachedir
 	osm.Release()
 
-	sm, err := NewSourceManager(naiveAnalyzer{}, cpath)
+	sm, err := NewSourceManager(cpath)
 	if err != nil {
 		t.Errorf("unexpected error on SourceManager recreation: %s", err)
 		t.FailNow()
@@ -91,13 +91,13 @@ func TestSourceManagerInit(t *testing.T) {
 	if err != nil {
 		t.Errorf("Failed to create temp dir: %s", err)
 	}
-	sm, err := NewSourceManager(naiveAnalyzer{}, cpath)
+	sm, err := NewSourceManager(cpath)
 
 	if err != nil {
 		t.Errorf("Unexpected error on SourceManager creation: %s", err)
 	}
 
-	_, err = NewSourceManager(naiveAnalyzer{}, cpath)
+	_, err = NewSourceManager(cpath)
 	if err == nil {
 		t.Errorf("Creating second SourceManager should have failed due to file lock contention")
 	} else if te, ok := err.(CouldNotCreateLockError); !ok {
@@ -120,7 +120,7 @@ func TestSourceManagerInit(t *testing.T) {
 	}
 
 	// Set another one up at the same spot now, just to be sure
-	sm, err = NewSourceManager(naiveAnalyzer{}, cpath)
+	sm, err = NewSourceManager(cpath)
 	if err != nil {
 		t.Errorf("Creating a second SourceManager should have succeeded when the first was released, but failed with err %s", err)
 	}
@@ -144,7 +144,7 @@ func TestSourceInit(t *testing.T) {
 		t.FailNow()
 	}
 
-	sm, err := NewSourceManager(naiveAnalyzer{}, cpath)
+	sm, err := NewSourceManager(cpath)
 	if err != nil {
 		t.Errorf("Unexpected error on SourceManager creation: %s", err)
 		t.FailNow()
@@ -338,7 +338,7 @@ func TestMgrMethodsFailWithBadPath(t *testing.T) {
 	if _, err = sm.ListPackages(bad, nil); err == nil {
 		t.Error("ListPackages() did not error on bad input")
 	}
-	if _, _, err = sm.GetManifestAndLock(bad, nil); err == nil {
+	if _, _, err = sm.GetManifestAndLock(bad, nil, naiveAnalyzer{}); err == nil {
 		t.Error("GetManifestAndLock() did not error on bad input")
 	}
 	if err = sm.ExportProject(bad, nil, ""); err == nil {
@@ -426,7 +426,7 @@ func TestGetInfoListVersionsOrdering(t *testing.T) {
 
 	id := mkPI("github.com/sdboyer/gpkt").normalize()
 
-	_, _, err := sm.GetManifestAndLock(id, NewVersion("v1.0.0"))
+	_, _, err := sm.GetManifestAndLock(id, NewVersion("v1.0.0"), naiveAnalyzer{})
 	if err != nil {
 		t.Errorf("Unexpected error from GetInfoAt %s", err)
 	}
@@ -689,7 +689,7 @@ func TestErrAfterRelease(t *testing.T) {
 		t.Errorf("ListPackages errored after Release(), but with unexpected error: %T %s", terr, terr.Error())
 	}
 
-	_, _, err = sm.GetManifestAndLock(id, nil)
+	_, _, err = sm.GetManifestAndLock(id, nil, naiveAnalyzer{})
 	if err == nil {
 		t.Errorf("GetManifestAndLock did not error after calling Release()")
 	} else if terr, ok := err.(smIsReleased); !ok {

result_test.go

@@ -111,7 +111,7 @@ func BenchmarkCreateVendorTree(b *testing.B) {
 	tmp := path.Join(os.TempDir(), "vsolvtest")
 
 	clean := true
-	sm, err := NewSourceManager(naiveAnalyzer{}, path.Join(tmp, "cache"))
+	sm, err := NewSourceManager(path.Join(tmp, "cache"))
 	if err != nil {
 		b.Errorf("NewSourceManager errored unexpectedly: %q", err)
 		clean = false

rootdata.go

@@ -42,6 +42,9 @@ type rootdata struct {
 
 	// A defensively copied instance of params.RootPackageTree
 	rpt pkgtree.PackageTree
+
+	// The ProjectAnalyzer to use for all GetManifestAndLock calls.
+	an ProjectAnalyzer
 }
 
 // externalImportList returns a list of the unique imports from the root data.

rootdata_test.go

@@ -12,6 +12,7 @@ func TestRootdataExternalImports(t *testing.T) {
 		RootDir:         string(fix.ds[0].n),
 		RootPackageTree: fix.rootTree(),
 		Manifest:        fix.rootmanifest(),
+		ProjectAnalyzer: naiveAnalyzer{},
 	}
 
 	is, err := Prepare(params, newdepspecSM(fix.ds, nil))
@@ -65,6 +66,7 @@ func TestGetApplicableConstraints(t *testing.T) {
 		RootDir:         string(fix.ds[0].n),
 		RootPackageTree: fix.rootTree(),
 		Manifest:        fix.rootmanifest(),
+		ProjectAnalyzer: naiveAnalyzer{},
 	}
 
 	is, err := Prepare(params, newdepspecSM(fix.ds, nil))

solve_basic_test.go

@@ -1384,7 +1384,7 @@ func newdepspecSM(ds []depspec, ignore []string) *depspecSourceManager {
 	}
 }
 
-func (sm *depspecSourceManager) GetManifestAndLock(id ProjectIdentifier, v Version) (Manifest, Lock, error) {
+func (sm *depspecSourceManager) GetManifestAndLock(id ProjectIdentifier, v Version, an ProjectAnalyzer) (Manifest, Lock, error) {
 	// If the input version is a PairedVersion, look only at its top version,
 	// not the underlying. This is generally consistent with the idea that, for
 	// this class of lookup, the rev probably DOES exist, but upstream changed

solve_bimodal_test.go

@@ -1134,7 +1134,7 @@ func (sm *bmSourceManager) ListPackages(id ProjectIdentifier, v Version) (pkgtre
 	return pkgtree.PackageTree{}, fmt.Errorf("Project %s at version %s could not be found", id.errString(), v)
 }
 
-func (sm *bmSourceManager) GetManifestAndLock(id ProjectIdentifier, v Version) (Manifest, Lock, error) {
+func (sm *bmSourceManager) GetManifestAndLock(id ProjectIdentifier, v Version, an ProjectAnalyzer) (Manifest, Lock, error) {
 	for _, ds := range sm.specs {
 		if id.normalizedSource() == string(ds.n) && v.Matches(ds.v) {
 			if l, exists := sm.lm[id.normalizedSource()+" "+v.String()]; exists {

solve_test.go

@@ -104,6 +104,7 @@ func solveBasicsAndCheck(fix basicFixture, t *testing.T) (res Solution, err erro
 		Downgrade:       fix.downgrade,
 		ChangeAll:       fix.changeall,
 		ToChange:        fix.changelist,
+		ProjectAnalyzer: naiveAnalyzer{},
 	}
 
 	if fix.l != nil {
@@ -153,6 +154,7 @@ func solveBimodalAndCheck(fix bimodalFixture, t *testing.T) (res Solution, err e
 		Lock:            dummyLock{},
 		Downgrade:       fix.downgrade,
 		ChangeAll:       fix.changeall,
+		ProjectAnalyzer: naiveAnalyzer{},
 	}
 
 	if fix.l != nil {
@@ -284,6 +286,7 @@ func TestRootLockNoVersionPairMatching(t *testing.T) {
 		RootPackageTree: fix.rootTree(),
 		Manifest:        fix.rootmanifest(),
 		Lock:            l2,
+		ProjectAnalyzer: naiveAnalyzer{},
 	}
 
 	res, err := fixSolve(params, sm)
@@ -308,6 +311,14 @@ func TestBadSolveOpts(t *testing.T) {
 		t.Error("Prepare should have given error on nil SourceManager, but gave:", err)
 	}
 
+	_, err = Prepare(params, sm)
+	if err == nil {
+		t.Errorf("Prepare should have errored without ProjectAnalyzer")
+	} else if !strings.Contains(err.Error(), "must provide a ProjectAnalyzer") {
+		t.Error("Prepare should have given error without ProjectAnalyzer, but gave:", err)
+	}
+
+	params.ProjectAnalyzer = naiveAnalyzer{}
 	_, err = Prepare(params, sm)
 	if err == nil {
 		t.Errorf("Prepare should have errored on empty root")