Add TickSize to facts, burndown analyser and burndown results

Signed-off-by: Robert Lin <robertlin1@gmail.com>

internal/pb/pb.pb.go

@@ -44,7 +44,7 @@ func (m *Metadata) Reset()         { *m = Metadata{} }
 func (m *Metadata) String() string { return proto.CompactTextString(m) }
 func (*Metadata) ProtoMessage()    {}
 func (*Metadata) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pb_07b4c5185d2fe6c6, []int{0}
+	return fileDescriptor_pb_054fce485f871fc4, []int{0}
 }
 func (m *Metadata) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_Metadata.Unmarshal(m, b)
@@ -133,7 +133,7 @@ func (m *BurndownSparseMatrixRow) Reset()         { *m = BurndownSparseMatrixRow
 func (m *BurndownSparseMatrixRow) String() string { return proto.CompactTextString(m) }
 func (*BurndownSparseMatrixRow) ProtoMessage()    {}
 func (*BurndownSparseMatrixRow) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pb_07b4c5185d2fe6c6, []int{1}
+	return fileDescriptor_pb_054fce485f871fc4, []int{1}
 }
 func (m *BurndownSparseMatrixRow) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_BurndownSparseMatrixRow.Unmarshal(m, b)
@@ -175,7 +175,7 @@ func (m *BurndownSparseMatrix) Reset()         { *m = BurndownSparseMatrix{} }
 func (m *BurndownSparseMatrix) String() string { return proto.CompactTextString(m) }
 func (*BurndownSparseMatrix) ProtoMessage()    {}
 func (*BurndownSparseMatrix) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pb_07b4c5185d2fe6c6, []int{2}
+	return fileDescriptor_pb_054fce485f871fc4, []int{2}
 }
 func (m *BurndownSparseMatrix) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_BurndownSparseMatrix.Unmarshal(m, b)
@@ -235,7 +235,7 @@ func (m *FilesOwnership) Reset()         { *m = FilesOwnership{} }
 func (m *FilesOwnership) String() string { return proto.CompactTextString(m) }
 func (*FilesOwnership) ProtoMessage()    {}
 func (*FilesOwnership) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pb_07b4c5185d2fe6c6, []int{3}
+	return fileDescriptor_pb_054fce485f871fc4, []int{3}
 }
 func (m *FilesOwnership) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_FilesOwnership.Unmarshal(m, b)
@@ -276,17 +276,19 @@ type BurndownAnalysisResults struct {
 	// rows and cols order correspond to `burndown_developer`
 	PeopleInteraction *CompressedSparseRowMatrix `protobuf:"bytes,6,opt,name=people_interaction,json=peopleInteraction,proto3" json:"people_interaction,omitempty"`
 	// How many lines belong to relevant developers for each file. The order is the same as in `files`.
-	FilesOwnership       []*FilesOwnership `protobuf:"bytes,7,rep,name=files_ownership,json=filesOwnership,proto3" json:"files_ownership,omitempty"`
-	XXX_NoUnkeyedLiteral struct{}          `json:"-"`
-	XXX_unrecognized     []byte            `json:"-"`
-	XXX_sizecache        int32             `json:"-"`
+	FilesOwnership []*FilesOwnership `protobuf:"bytes,7,rep,name=files_ownership,json=filesOwnership,proto3" json:"files_ownership,omitempty"`
+	// how long each tick is, as an int64 nanosecond count (Go's time.Duration)
+	TickSize             int64    `protobuf:"varint,8,opt,name=tick_size,json=tickSize,proto3" json:"tick_size,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
 }
 
 func (m *BurndownAnalysisResults) Reset()         { *m = BurndownAnalysisResults{} }
 func (m *BurndownAnalysisResults) String() string { return proto.CompactTextString(m) }
 func (*BurndownAnalysisResults) ProtoMessage()    {}
 func (*BurndownAnalysisResults) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pb_07b4c5185d2fe6c6, []int{4}
+	return fileDescriptor_pb_054fce485f871fc4, []int{4}
 }
 func (m *BurndownAnalysisResults) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_BurndownAnalysisResults.Unmarshal(m, b)
@@ -355,6 +357,13 @@ func (m *BurndownAnalysisResults) GetFilesOwnership() []*FilesOwnership {
 	return nil
 }
 
+func (m *BurndownAnalysisResults) GetTickSize() int64 {
+	if m != nil {
+		return m.TickSize
+	}
+	return 0
+}
+
 type CompressedSparseRowMatrix struct {
 	NumberOfRows    int32 `protobuf:"varint,1,opt,name=number_of_rows,json=numberOfRows,proto3" json:"number_of_rows,omitempty"`
 	NumberOfColumns int32 `protobuf:"varint,2,opt,name=number_of_columns,json=numberOfColumns,proto3" json:"number_of_columns,omitempty"`
@@ -371,7 +380,7 @@ func (m *CompressedSparseRowMatrix) Reset()         { *m = CompressedSparseRowMa
 func (m *CompressedSparseRowMatrix) String() string { return proto.CompactTextString(m) }
 func (*CompressedSparseRowMatrix) ProtoMessage()    {}
 func (*CompressedSparseRowMatrix) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pb_07b4c5185d2fe6c6, []int{5}
+	return fileDescriptor_pb_054fce485f871fc4, []int{5}
 }
 func (m *CompressedSparseRowMatrix) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_CompressedSparseRowMatrix.Unmarshal(m, b)
@@ -440,7 +449,7 @@ func (m *Couples) Reset()         { *m = Couples{} }
 func (m *Couples) String() string { return proto.CompactTextString(m) }
 func (*Couples) ProtoMessage()    {}
 func (*Couples) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pb_07b4c5185d2fe6c6, []int{6}
+	return fileDescriptor_pb_054fce485f871fc4, []int{6}
 }
 func (m *Couples) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_Couples.Unmarshal(m, b)
@@ -485,7 +494,7 @@ func (m *TouchedFiles) Reset()         { *m = TouchedFiles{} }
 func (m *TouchedFiles) String() string { return proto.CompactTextString(m) }
 func (*TouchedFiles) ProtoMessage()    {}
 func (*TouchedFiles) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pb_07b4c5185d2fe6c6, []int{7}
+	return fileDescriptor_pb_054fce485f871fc4, []int{7}
 }
 func (m *TouchedFiles) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_TouchedFiles.Unmarshal(m, b)
@@ -528,7 +537,7 @@ func (m *CouplesAnalysisResults) Reset()         { *m = CouplesAnalysisResults{}
 func (m *CouplesAnalysisResults) String() string { return proto.CompactTextString(m) }
 func (*CouplesAnalysisResults) ProtoMessage()    {}
 func (*CouplesAnalysisResults) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pb_07b4c5185d2fe6c6, []int{8}
+	return fileDescriptor_pb_054fce485f871fc4, []int{8}
 }
 func (m *CouplesAnalysisResults) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_CouplesAnalysisResults.Unmarshal(m, b)
@@ -591,7 +600,7 @@ func (m *UASTChange) Reset()         { *m = UASTChange{} }
 func (m *UASTChange) String() string { return proto.CompactTextString(m) }
 func (*UASTChange) ProtoMessage()    {}
 func (*UASTChange) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pb_07b4c5185d2fe6c6, []int{9}
+	return fileDescriptor_pb_054fce485f871fc4, []int{9}
 }
 func (m *UASTChange) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_UASTChange.Unmarshal(m, b)
@@ -657,7 +666,7 @@ func (m *UASTChangesSaverResults) Reset()         { *m = UASTChangesSaverResults
 func (m *UASTChangesSaverResults) String() string { return proto.CompactTextString(m) }
 func (*UASTChangesSaverResults) ProtoMessage()    {}
 func (*UASTChangesSaverResults) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pb_07b4c5185d2fe6c6, []int{10}
+	return fileDescriptor_pb_054fce485f871fc4, []int{10}
 }
 func (m *UASTChangesSaverResults) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_UASTChangesSaverResults.Unmarshal(m, b)
@@ -698,7 +707,7 @@ func (m *ShotnessRecord) Reset()         { *m = ShotnessRecord{} }
 func (m *ShotnessRecord) String() string { return proto.CompactTextString(m) }
 func (*ShotnessRecord) ProtoMessage()    {}
 func (*ShotnessRecord) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pb_07b4c5185d2fe6c6, []int{11}
+	return fileDescriptor_pb_054fce485f871fc4, []int{11}
 }
 func (m *ShotnessRecord) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_ShotnessRecord.Unmarshal(m, b)
@@ -757,7 +766,7 @@ func (m *ShotnessAnalysisResults) Reset()         { *m = ShotnessAnalysisResults
 func (m *ShotnessAnalysisResults) String() string { return proto.CompactTextString(m) }
 func (*ShotnessAnalysisResults) ProtoMessage()    {}
 func (*ShotnessAnalysisResults) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pb_07b4c5185d2fe6c6, []int{12}
+	return fileDescriptor_pb_054fce485f871fc4, []int{12}
 }
 func (m *ShotnessAnalysisResults) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_ShotnessAnalysisResults.Unmarshal(m, b)
@@ -796,7 +805,7 @@ func (m *FileHistory) Reset()         { *m = FileHistory{} }
 func (m *FileHistory) String() string { return proto.CompactTextString(m) }
 func (*FileHistory) ProtoMessage()    {}
 func (*FileHistory) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pb_07b4c5185d2fe6c6, []int{13}
+	return fileDescriptor_pb_054fce485f871fc4, []int{13}
 }
 func (m *FileHistory) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_FileHistory.Unmarshal(m, b)
@@ -841,7 +850,7 @@ func (m *FileHistoryResultMessage) Reset()         { *m = FileHistoryResultMessa
 func (m *FileHistoryResultMessage) String() string { return proto.CompactTextString(m) }
 func (*FileHistoryResultMessage) ProtoMessage()    {}
 func (*FileHistoryResultMessage) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pb_07b4c5185d2fe6c6, []int{14}
+	return fileDescriptor_pb_054fce485f871fc4, []int{14}
 }
 func (m *FileHistoryResultMessage) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_FileHistoryResultMessage.Unmarshal(m, b)
@@ -881,7 +890,7 @@ func (m *LineStats) Reset()         { *m = LineStats{} }
 func (m *LineStats) String() string { return proto.CompactTextString(m) }
 func (*LineStats) ProtoMessage()    {}
 func (*LineStats) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pb_07b4c5185d2fe6c6, []int{15}
+	return fileDescriptor_pb_054fce485f871fc4, []int{15}
 }
 func (m *LineStats) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_LineStats.Unmarshal(m, b)
@@ -935,7 +944,7 @@ func (m *DevTick) Reset()         { *m = DevTick{} }
 func (m *DevTick) String() string { return proto.CompactTextString(m) }
 func (*DevTick) ProtoMessage()    {}
 func (*DevTick) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pb_07b4c5185d2fe6c6, []int{16}
+	return fileDescriptor_pb_054fce485f871fc4, []int{16}
 }
 func (m *DevTick) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_DevTick.Unmarshal(m, b)
@@ -987,7 +996,7 @@ func (m *TickDevs) Reset()         { *m = TickDevs{} }
 func (m *TickDevs) String() string { return proto.CompactTextString(m) }
 func (*TickDevs) ProtoMessage()    {}
 func (*TickDevs) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pb_07b4c5185d2fe6c6, []int{17}
+	return fileDescriptor_pb_054fce485f871fc4, []int{17}
 }
 func (m *TickDevs) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_TickDevs.Unmarshal(m, b)
@@ -1026,7 +1035,7 @@ func (m *DevsAnalysisResults) Reset()         { *m = DevsAnalysisResults{} }
 func (m *DevsAnalysisResults) String() string { return proto.CompactTextString(m) }
 func (*DevsAnalysisResults) ProtoMessage()    {}
 func (*DevsAnalysisResults) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pb_07b4c5185d2fe6c6, []int{18}
+	return fileDescriptor_pb_054fce485f871fc4, []int{18}
 }
 func (m *DevsAnalysisResults) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_DevsAnalysisResults.Unmarshal(m, b)
@@ -1073,7 +1082,7 @@ func (m *Sentiment) Reset()         { *m = Sentiment{} }
 func (m *Sentiment) String() string { return proto.CompactTextString(m) }
 func (*Sentiment) ProtoMessage()    {}
 func (*Sentiment) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pb_07b4c5185d2fe6c6, []int{19}
+	return fileDescriptor_pb_054fce485f871fc4, []int{19}
 }
 func (m *Sentiment) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_Sentiment.Unmarshal(m, b)
@@ -1125,7 +1134,7 @@ func (m *CommentSentimentResults) Reset()         { *m = CommentSentimentResults
 func (m *CommentSentimentResults) String() string { return proto.CompactTextString(m) }
 func (*CommentSentimentResults) ProtoMessage()    {}
 func (*CommentSentimentResults) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pb_07b4c5185d2fe6c6, []int{20}
+	return fileDescriptor_pb_054fce485f871fc4, []int{20}
 }
 func (m *CommentSentimentResults) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_CommentSentimentResults.Unmarshal(m, b)
@@ -1165,7 +1174,7 @@ func (m *CommitFile) Reset()         { *m = CommitFile{} }
 func (m *CommitFile) String() string { return proto.CompactTextString(m) }
 func (*CommitFile) ProtoMessage()    {}
 func (*CommitFile) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pb_07b4c5185d2fe6c6, []int{21}
+	return fileDescriptor_pb_054fce485f871fc4, []int{21}
 }
 func (m *CommitFile) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_CommitFile.Unmarshal(m, b)
@@ -1220,7 +1229,7 @@ func (m *Commit) Reset()         { *m = Commit{} }
 func (m *Commit) String() string { return proto.CompactTextString(m) }
 func (*Commit) ProtoMessage()    {}
 func (*Commit) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pb_07b4c5185d2fe6c6, []int{22}
+	return fileDescriptor_pb_054fce485f871fc4, []int{22}
 }
 func (m *Commit) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_Commit.Unmarshal(m, b)
@@ -1280,7 +1289,7 @@ func (m *CommitsAnalysisResults) Reset()         { *m = CommitsAnalysisResults{}
 func (m *CommitsAnalysisResults) String() string { return proto.CompactTextString(m) }
 func (*CommitsAnalysisResults) ProtoMessage()    {}
 func (*CommitsAnalysisResults) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pb_07b4c5185d2fe6c6, []int{23}
+	return fileDescriptor_pb_054fce485f871fc4, []int{23}
 }
 func (m *CommitsAnalysisResults) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_CommitsAnalysisResults.Unmarshal(m, b)
@@ -1329,7 +1338,7 @@ func (m *Typo) Reset()         { *m = Typo{} }
 func (m *Typo) String() string { return proto.CompactTextString(m) }
 func (*Typo) ProtoMessage()    {}
 func (*Typo) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pb_07b4c5185d2fe6c6, []int{24}
+	return fileDescriptor_pb_054fce485f871fc4, []int{24}
 }
 func (m *Typo) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_Typo.Unmarshal(m, b)
@@ -1395,7 +1404,7 @@ func (m *TyposDataset) Reset()         { *m = TyposDataset{} }
 func (m *TyposDataset) String() string { return proto.CompactTextString(m) }
 func (*TyposDataset) ProtoMessage()    {}
 func (*TyposDataset) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pb_07b4c5185d2fe6c6, []int{25}
+	return fileDescriptor_pb_054fce485f871fc4, []int{25}
 }
 func (m *TyposDataset) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_TyposDataset.Unmarshal(m, b)
@@ -1435,7 +1444,7 @@ func (m *AnalysisResults) Reset()         { *m = AnalysisResults{} }
 func (m *AnalysisResults) String() string { return proto.CompactTextString(m) }
 func (*AnalysisResults) ProtoMessage()    {}
 func (*AnalysisResults) Descriptor() ([]byte, []int) {
-	return fileDescriptor_pb_07b4c5185d2fe6c6, []int{26}
+	return fileDescriptor_pb_054fce485f871fc4, []int{26}
 }
 func (m *AnalysisResults) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_AnalysisResults.Unmarshal(m, b)
@@ -1509,107 +1518,108 @@ func init() {
 	proto.RegisterMapType((map[string][]byte)(nil), "AnalysisResults.ContentsEntry")
 }
 
-func init() { proto.RegisterFile("pb.proto", fileDescriptor_pb_07b4c5185d2fe6c6) }
-
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+func init() { proto.RegisterFile("pb.proto", fileDescriptor_pb_054fce485f871fc4) }
+
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+	0x82, 0xbb, 0x6d, 0x2e, 0xd5, 0x76, 0xdf, 0x86, 0xae, 0x2a, 0x0d, 0x0d, 0x6f, 0xae, 0xc0, 0xd7,
+	0xa4, 0x5c, 0x2b, 0xdc, 0x81, 0x8e, 0x52, 0x90, 0x56, 0xc9, 0xd1, 0xb8, 0xe6, 0xe4, 0x6d, 0x76,
+	0xdb, 0x12, 0x22, 0x1d, 0xb8, 0x0e, 0x6d, 0x59, 0x32, 0x93, 0x90, 0x60, 0x66, 0xb5, 0x84, 0x1b,
+	0x20, 0x58, 0x8f, 0x39, 0xc7, 0xfe, 0xd9, 0x00, 0x78, 0xbe, 0x3f, 0x3c, 0x1e, 0x8c, 0x3d, 0x72,
+	0x86, 0x79, 0xa1, 0x08, 0xfb, 0x73, 0xb3, 0xca, 0xe4, 0x8c, 0xa7, 0x7c, 0x5e, 0x6d, 0x03, 0x30,
+	0xea, 0x8f, 0x4e, 0xf0, 0x69, 0x44, 0xb1, 0xda, 0x2c, 0x2d, 0x46, 0xfd, 0x03, 0xc1, 0xe0, 0xba,
+	0x5c, 0xec, 0x9d, 0x26, 0x98, 0xaa, 0xed, 0x62, 0x32, 0xea, 0xef, 0x73, 0x9a, 0x1b, 0x92, 0x7a,
+	0x2c, 0xd1, 0xca, 0x35, 0xb9, 0x7c, 0x38, 0x4b, 0x69, 0x6f, 0x83, 0xa0, 0x94, 0x7a, 0x5d, 0x1e,
+	0xce, 0x39, 0x42, 0xdf, 0xfe, 0x02, 0xb6, 0x96, 0x66, 0xb2, 0xa1, 0x37, 0xc3, 0x54, 0xc7, 0xfc,
+	0x03, 0x68, 0xfa, 0x92, 0xad, 0xc6, 0x56, 0xdb, 0x59, 0x42, 0x5d, 0x2d, 0xb3, 0xff, 0x30, 0xa0,
+	0x3b, 0x1c, 0x47, 0x09, 0xc1, 0x8c, 0xb9, 0xd8, 0x8f, 0x68, 0xc0, 0x2b, 0x31, 0x59, 0xc4, 0xd9,
+	0x50, 0xe6, 0xdf, 0xd9, 0xa0, 0xae, 0xe4, 0x06, 0x35, 0x82, 0x1a, 0x0f, 0x82, 0x72, 0x4a, 0x7c,
+	0xa3, 0xcf, 0xc0, 0xf4, 0xa3, 0x94, 0x77, 0xa7, 0x1e, 0x1b, 0xdb, 0x4e, 0xf1, 0x78, 0x9e, 0x45,
+	0x21, 0x97, 0x03, 0x33, 0x83, 0xf7, 0x3e, 0x87, 0xb5, 0x82, 0xe8, 0x7f, 0x8d, 0xcd, 0x43, 0xd8,
+	0xd2, 0xd7, 0xac, 0x16, 0xdf, 0xc7, 0xd0, 0xa4, 0xe2, 0x66, 0x1d, 0x88, 0xf5, 0x15, 0x8b, 0x5c,
+	0x2d, 0xb7, 0xff, 0x36, 0xa0, 0xcd, 0x2b, 0xe4, 0x51, 0xc8, 0xc4, 0xea, 0xcf, 0xad, 0x6b, 0xd9,
+	0x44, 0xd9, 0xba, 0x7e, 0x01, 0x9b, 0x2a, 0x82, 0xa3, 0x93, 0xc5, 0x28, 0xc0, 0x33, 0x3c, 0x89,
+	0x62, 0x4c, 0xad, 0x8a, 0xb8, 0x61, 0xc7, 0xc9, 0x9d, 0xe2, 0xa8, 0xec, 0x1c, 0x2c, 0x0e, 0x35,
+	0x4c, 0xba, 0x8e, 0xfc, 0x37, 0x04, 0xbd, 0xaf, 0x61, 0xeb, 0x02, 0x78, 0x49, 0x38, 0xfa, 0xf9,
+	0x70, 0xb4, 0xf7, 0xc0, 0xe1, 0xc5, 0x3b, 0x4c, 0xbc, 0x84, 0xe5, 0x43, 0xf3, 0x93, 0x01, 0x56,
+	0xce, 0x1c, 0x19, 0x96, 0x27, 0x98, 0x31, 0xef, 0x0c, 0xa3, 0x07, 0xf9, 0x56, 0x5e, 0x31, 0xbc,
+	0x80, 0x94, 0xb3, 0x54, 0x2d, 0x39, 0xa1, 0xd2, 0x7b, 0x08, 0xb0, 0x64, 0x96, 0x3c, 0x22, 0xec,
+	0xa2, 0x79, 0x9d, 0xc2, 0xd9, 0x39, 0x03, 0x9f, 0x43, 0x2b, 0x33, 0x9c, 0xa7, 0xd8, 0x0b, 0x02,
+	0x1c, 0x28, 0x3f, 0x25, 0xc1, 0x13, 0x41, 0xf1, 0x34, 0x9a, 0xe1, 0x40, 0xa5, 0x5e, 0x93, 0x22,
+	0x45, 0x22, 0x60, 0x81, 0xda, 0xfe, 0x9a, 0xb4, 0xff, 0x34, 0xa0, 0x79, 0x88, 0x67, 0xc7, 0xa1,
+	0xff, 0xaa, 0x98, 0xc8, 0xc2, 0xbb, 0xab, 0x0f, 0x75, 0xc6, 0x2f, 0x2e, 0x8b, 0xa1, 0x10, 0xa0,
+	0x7b, 0xd0, 0x9a, 0x78, 0xe4, 0x2c, 0xf5, 0x78, 0x2b, 0x55, 0x45, 0x98, 0xb6, 0x1c, 0x75, 0xb0,
+	0xf3, 0x58, 0x4b, 0x64, 0x64, 0x96, 0xc8, 0xde, 0x23, 0xe8, 0x16, 0x85, 0x25, 0x11, 0x7a, 0xb7,
+	0x04, 0xce, 0xc0, 0xe4, 0x77, 0x1d, 0xe2, 0x19, 0x43, 0x1f, 0x41, 0x2d, 0xc0, 0x33, 0x9d, 0xae,
+	0x4b, 0x8e, 0x16, 0x70, 0x83, 0x94, 0x0d, 0x02, 0xd0, 0xdb, 0x87, 0x56, 0xc6, 0x2a, 0x29, 0x9d,
+	0x6b, 0xc5, 0x9b, 0x4d, 0xed, 0x50, 0xfe, 0xde, 0xdf, 0x0c, 0xb8, 0xc4, 0xcf, 0x58, 0x6d, 0xa8,
+	0x7b, 0x50, 0xe7, 0x5b, 0x52, 0x1b, 0x71, 0xdd, 0x29, 0x01, 0x09, 0xc3, 0x74, 0xb9, 0x08, 0x34,
+	0x1f, 0x84, 0x01, 0x9e, 0x8d, 0xe4, 0x4e, 0xaa, 0x88, 0x76, 0x32, 0x03, 0x3c, 0x3b, 0xe2, 0x74,
+	0x6f, 0x00, 0xb0, 0xd4, 0x28, 0xb1, 0xf7, 0x7a, 0xd1, 0xde, 0x56, 0xe6, 0x78, 0xde, 0xe0, 0x6f,
+	0xa0, 0x35, 0xc4, 0x84, 0xbf, 0x93, 0x49, 0xb2, 0x9c, 0x15, 0xfc, 0x94, 0x8a, 0x82, 0xf1, 0x07,
+	0x12, 0xcf, 0x3c, 0x26, 0x22, 0xe3, 0xc2, 0x06, 0x4d, 0xe7, 0x8b, 0xa4, 0x5a, 0xe8, 0x76, 0x3e,
+	0x24, 0xb7, 0x06, 0x12, 0x96, 0x5d, 0xa0, 0xa3, 0xf1, 0x2d, 0x6c, 0x30, 0xcd, 0xe3, 0xb3, 0x80,
+	0x3b, 0xab, 0x22, 0x73, 0xcb, 0xb9, 0x40, 0xc9, 0xc9, 0x18, 0x07, 0x0b, 0xee, 0x88, 0x8c, 0xd3,
+	0x3a, 0x2b, 0x72, 0x7b, 0x4f, 0x61, 0xb3, 0x0c, 0xf8, 0x2e, 0x93, 0x60, 0x79, 0x63, 0x2e, 0x3e,
+	0x2f, 0x01, 0x06, 0xc2, 0x23, 0xde, 0x88, 0xa5, 0x6f, 0xef, 0x1e, 0x98, 0xba, 0x82, 0xf5, 0xae,
+	0xd2, 0xf4, 0xb2, 0x53, 0x6a, 0x17, 0x74, 0x8a, 0xfd, 0x03, 0x34, 0xe4, 0xf9, 0xd9, 0x7f, 0x96,
+	0x91, 0xfb, 0xcf, 0xda, 0x81, 0xee, 0x7c, 0x8c, 0xf3, 0xbf, 0x51, 0x15, 0xf1, 0xe4, 0xea, 0x70,
+	0x6e, 0xf6, 0x87, 0x74, 0x19, 0x1a, 0x5e, 0x9a, 0x8c, 0x23, 0xaa, 0xda, 0x59, 0x51, 0xe8, 0x46,
+	0xf1, 0x31, 0xda, 0x76, 0x96, 0x9e, 0xe8, 0x07, 0xc8, 0x4b, 0xfe, 0xfe, 0x10, 0x09, 0x5b, 0xad,
+	0xd8, 0x1b, 0xc5, 0x39, 0xde, 0xde, 0x6b, 0x2a, 0xf5, 0xe5, 0x1c, 0xb8, 0x01, 0x1d, 0x79, 0x53,
+	0xa1, 0x40, 0xdb, 0x92, 0x27, 0x6a, 0xd4, 0x9e, 0x41, 0xed, 0x78, 0x11, 0x47, 0xbc, 0xb2, 0xe6,
+	0x34, 0x22, 0x67, 0xca, 0x3b, 0x49, 0xc8, 0xea, 0xa1, 0x94, 0x3f, 0xaf, 0xe5, 0x92, 0xd4, 0x24,
+	0x77, 0x49, 0xde, 0xa2, 0x42, 0xaa, 0xa8, 0x6c, 0x7f, 0xd6, 0x72, 0xfb, 0x13, 0x41, 0x8d, 0xbf,
+	0x49, 0xc4, 0xa6, 0xaf, 0xbb, 0xe2, 0xdb, 0xbe, 0x09, 0x1d, 0x7e, 0x2f, 0x3b, 0xf4, 0x12, 0x8f,
+	0xe1, 0x04, 0x5d, 0x85, 0x7a, 0xc2, 0x69, 0xe5, 0x4b, 0xdd, 0xe1, 0x52, 0x57, 0xf2, 0xec, 0x5f,
+	0x0d, 0x58, 0x7f, 0xd3, 0xfd, 0xc6, 0x18, 0x7b, 0x01, 0xa6, 0xc2, 0x62, 0xde, 0x3d, 0xfa, 0xaf,
+	0xd1, 0x55, 0x02, 0xf4, 0x80, 0xf7, 0x05, 0x49, 0xb2, 0xbe, 0x68, 0xef, 0x5d, 0x73, 0x56, 0x5b,
+	0x7a, 0xa0, 0x00, 0xd9, 0xe2, 0x96, 0xa4, 0x5c, 0xdc, 0x39, 0xd1, 0x7f, 0xfd, 0x4f, 0x76, 0x72,
+	0x35, 0x79, 0xd2, 0x10, 0xff, 0xef, 0x77, 0xff, 0x0d, 0x00, 0x00, 0xff, 0xff, 0x01, 0xd1, 0x41,
+	0xe8, 0xcb, 0x0f, 0x00, 0x00,
 }

internal/pb/pb.proto

@@ -53,6 +53,8 @@ message BurndownAnalysisResults {
     CompressedSparseRowMatrix people_interaction = 6;
     // How many lines belong to relevant developers for each file. The order is the same as in `files`.
     repeated FilesOwnership files_ownership = 7;
+    // how long each tick is, as an int64 nanosecond count (Go's time.Duration)
+    int64 tick_size = 8;
 }
 
 message CompressedSparseRowMatrix {

internal/plumbing/ticks.go

@@ -30,6 +30,9 @@ const (
 	// FactCommitsByTick contains the mapping between day indices and the corresponding commits.
 	FactCommitsByTick = "TicksSinceStart.Commits"
 
+	// FactTickSize contains the time.Duration of each tick.
+	FactTickSize = "TicksSinceStart.TickSize"
+
 	// ConfigTicksSinceStartTickSize sets the size of each 'tick' in hours.
 	ConfigTicksSinceStartTickSize = "TicksSinceStart.TickSize"
 
@@ -79,6 +82,7 @@ func (ticks *TicksSinceStart) Configure(facts map[string]interface{}) error {
 		ticks.commits = map[int][]plumbing.Hash{}
 	}
 	facts[FactCommitsByTick] = ticks.commits
+	facts[FactTickSize] = ticks.TickSize
 	return nil
 }
 

leaves/burndown.go

@@ -10,6 +10,7 @@ import (
 	"os"
 	"sort"
 	"sync"
+	"time"
 	"unicode/utf8"
 
 	"github.com/gogo/protobuf/proto"
@@ -100,6 +101,8 @@ type BurndownAnalysis struct {
 	// previousTick is the tick from the previous sample period -
 	// different from TicksSinceStart.previousTick.
 	previousTick int
+	// tickSize indicates the size of each tick.
+	tickSize time.Duration
 	// references IdentityDetector.ReversedPeopleDict
 	reversedPeopleDict []string
 }
@@ -126,6 +129,8 @@ type BurndownResult struct {
 	// The rest of the elements are equal the number of line removals by the corresponding
 	// authors in reversedPeopleDict: 2 -> 0, 3 -> 1, etc.
 	PeopleMatrix DenseHistory
+	// The size of each tick.
+	TickSize time.Duration
 
 	// The following members are private.
 
@@ -280,6 +285,9 @@ func (analyser *BurndownAnalysis) Configure(facts map[string]interface{}) error
 	if val, exists := facts[ConfigBurndownDebug].(bool); exists {
 		analyser.Debug = val
 	}
+	if val, exists := facts[items.FactTickSize].(time.Duration); exists {
+		analyser.tickSize = val
+	}
 	return nil
 }
 
@@ -547,6 +555,7 @@ func (analyser *BurndownAnalysis) Finalize() interface{} {
 		FileOwnership:      fileOwnership,
 		PeopleHistories:    peopleHistories,
 		PeopleMatrix:       peopleMatrix,
+		TickSize:           analyser.tickSize,
 		reversedPeopleDict: analyser.reversedPeopleDict,
 		sampling:           analyser.Sampling,
 		granularity:        analyser.Granularity,
@@ -571,7 +580,6 @@ func (analyser *BurndownAnalysis) Deserialize(pbmessage []byte) (interface{}, er
 	if err != nil {
 		return nil, err
 	}
-	result := BurndownResult{}
 	convertCSR := func(mat *pb.BurndownSparseMatrix) DenseHistory {
 		res := make(DenseHistory, mat.NumberOfRows)
 		for i := 0; i < int(mat.NumberOfRows); i++ {
@@ -582,9 +590,15 @@ func (analyser *BurndownAnalysis) Deserialize(pbmessage []byte) (interface{}, er
 		}
 		return res
 	}
-	result.GlobalHistory = convertCSR(msg.Project)
-	result.FileHistories = map[string]DenseHistory{}
-	result.FileOwnership = map[string]map[int]int{}
+	result := BurndownResult{
+		GlobalHistory: convertCSR(msg.Project),
+		FileHistories: map[string]DenseHistory{},
+		FileOwnership: map[string]map[int]int{},
+		TickSize:      time.Duration(msg.GetTickSize()),
+
+		granularity: int(msg.Granularity),
+		sampling:    int(msg.Sampling),
+	}
 	for i, mat := range msg.Files {
 		result.FileHistories[mat.Name] = convertCSR(mat)
 		ownership := map[int]int{}
@@ -608,8 +622,6 @@ func (analyser *BurndownAnalysis) Deserialize(pbmessage []byte) (interface{}, er
 			result.PeopleMatrix[i][msg.PeopleInteraction.Indices[j]] = msg.PeopleInteraction.Data[j]
 		}
 	}
-	result.sampling = int(msg.Sampling)
-	result.granularity = int(msg.Granularity)
 	return result, nil
 }
 
@@ -629,6 +641,11 @@ func (analyser *BurndownAnalysis) MergeResults(
 	} else {
 		merged.granularity = bar2.granularity
 	}
+	if bar1.TickSize < bar2.TickSize {
+		merged.TickSize = bar1.TickSize
+	} else {
+		merged.TickSize = bar2.TickSize
+	}
 	var people map[string][3]int
 	people, merged.reversedPeopleDict = identity.Detector{}.MergeReversedDicts(
 		bar1.reversedPeopleDict, bar2.reversedPeopleDict)
@@ -1001,6 +1018,7 @@ func (analyser *BurndownAnalysis) serializeBinary(result *BurndownResult, writer
 	message := pb.BurndownAnalysisResults{
 		Granularity: int32(result.granularity),
 		Sampling:    int32(result.sampling),
+		TickSize:    int64(result.TickSize),
 	}
 	if len(result.GlobalHistory) > 0 {
 		message.Project = pb.ToBurndownSparseMatrix(result.GlobalHistory, "project")

leaves/burndown_test.go

@@ -7,6 +7,7 @@ import (
 	"io/ioutil"
 	"path"
 	"testing"
+	"time"
 
 	"gopkg.in/src-d/hercules.v9/internal/burndown"
 	"gopkg.in/src-d/hercules.v9/internal/core"
@@ -471,6 +472,7 @@ func bakeBurndownForSerialization(t *testing.T, firstAuthor, secondAuthor int) (
 		Sampling:     30,
 		PeopleNumber: 2,
 		TrackFiles:   true,
+		tickSize:     24 * time.Hour,
 	}
 	assert.Nil(t, bd.Initialize(test.Repository))
 	deps := map[string]interface{}{}
@@ -648,6 +650,7 @@ func TestBurndownSerialize(t *testing.T) {
 	bd.Serialize(out, true, buffer)
 	msg := pb.BurndownAnalysisResults{}
 	proto.Unmarshal(buffer.Bytes(), &msg)
+	assert.Equal(t, msg.TickSize, int64(24*time.Hour))
 	assert.Equal(t, msg.Granularity, int32(30))
 	assert.Equal(t, msg.Sampling, int32(30))
 	assert.Equal(t, msg.Project.Name, "project")
@@ -1050,6 +1053,7 @@ func TestBurndownMergeGlobalHistory(t *testing.T) {
 		reversedPeopleDict: people1[:],
 		sampling:           15,
 		granularity:        20,
+		TickSize:           24 * time.Hour,
 	}
 	c1 := core.CommonAnalysisResult{
 		BeginTime:     600566400, // 1989 Jan 12
@@ -1095,6 +1099,7 @@ func TestBurndownMergeGlobalHistory(t *testing.T) {
 		FileHistories:      map[string][][]int64{},
 		PeopleHistories:    nil,
 		PeopleMatrix:       nil,
+		TickSize:           24 * time.Hour,
 		reversedPeopleDict: people2[:],
 		sampling:           14,
 		granularity:        19,
@@ -1141,6 +1146,7 @@ func TestBurndownMergeGlobalHistory(t *testing.T) {
 	merged := bd.MergeResults(res1, res2, &c1, &c2).(BurndownResult)
 	assert.Equal(t, merged.granularity, 19)
 	assert.Equal(t, merged.sampling, 14)
+	assert.Equal(t, merged.TickSize, 24*time.Hour)
 	assert.Len(t, merged.GlobalHistory, 5)
 	for _, row := range merged.GlobalHistory {
 		assert.Len(t, row, 4)
@@ -1180,6 +1186,7 @@ func TestBurndownMergeNils(t *testing.T) {
 		FileHistories:      map[string][][]int64{},
 		PeopleHistories:    nil,
 		PeopleMatrix:       nil,
+		TickSize:           24 * time.Hour,
 		reversedPeopleDict: nil,
 		sampling:           15,
 		granularity:        20,
@@ -1195,6 +1202,7 @@ func TestBurndownMergeNils(t *testing.T) {
 		FileHistories:      nil,
 		PeopleHistories:    nil,
 		PeopleMatrix:       nil,
+		TickSize:           24 * time.Hour,
 		reversedPeopleDict: nil,
 		sampling:           14,
 		granularity:        19,
@@ -1209,6 +1217,7 @@ func TestBurndownMergeNils(t *testing.T) {
 	merged := bd.MergeResults(res1, res2, &c1, &c2).(BurndownResult)
 	assert.Equal(t, merged.granularity, 19)
 	assert.Equal(t, merged.sampling, 14)
+	assert.Equal(t, merged.TickSize, 24*time.Hour)
 	assert.Nil(t, merged.GlobalHistory)
 	assert.Nil(t, merged.FileHistories)
 	assert.Nil(t, merged.PeopleHistories)
@@ -1287,6 +1296,7 @@ func TestBurndownDeserialize(t *testing.T) {
 	assert.True(t, len(result.PeopleMatrix) > 0)
 	assert.Equal(t, result.granularity, 30)
 	assert.Equal(t, result.sampling, 30)
+	assert.Equal(t, result.TickSize, 24*time.Hour)
 }
 
 func TestBurndownEmptyFileHistory(t *testing.T) {