Merge pull request #814 from Consensys/develop

v0.9.0 placeholder

.github/pull_request_template.md

@@ -1,13 +1,13 @@
 # Description
 
-Please include a summary of the changes and the related issue. Please also include relevant motivation and context.
-Note that in most cases the PR should be against the `develop` branch.
+<!-- Please include a summary of the changes and the related issue. Please also include relevant motivation and context.
+Note that in most cases the PR should be against the `develop` branch. -->
 
 Fixes # (issue)
 
 ## Type of change
 
-Please delete options that are not relevant.
+<!-- Please delete options that are not relevant. -->
 
 - [ ] Bug fix (non-breaking change which fixes an issue)
 - [ ] New feature (non-breaking change which adds functionality)
@@ -16,14 +16,14 @@ Please delete options that are not relevant.
 
 # How has this been tested?
 
-Please describe the tests that you ran or implemented to verify your changes. Provide instructions so we can reproduce.
+<!-- Please describe the tests that you ran or implemented to verify your changes. Provide instructions so we can reproduce. -->
 
 - [ ] Test A
 - [ ] Test B
 
 # How has this been benchmarked?
 
-Please describe the benchmarks that you ran to verify your changes.
+<!-- Please describe the benchmarks that you ran to verify your changes. -->
 
 - [ ] Benchmark A, on Macbook pro M1, 32GB RAM
 - [ ] Benchmark B, on x86 Intel xxx, 16GB RAM

.github/workflows/pr.yml

@@ -5,14 +5,14 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: install Go
-      uses: actions/setup-go@v2
+      uses: actions/setup-go@v3
       with:
-        go-version: 1.19.x
+        go-version: 1.20.x
     - name: checkout code
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
       with:
         fetch-depth: 0
-    - uses: actions/cache@v2
+    - uses: actions/cache@v3
       with:
         path: |
           ~/go/pkg/mod
@@ -22,10 +22,6 @@ jobs:
         key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
         restore-keys: |
           ${{ runner.os }}-go-
-    - name: golangci-lint
-      uses: golangci/golangci-lint-action@v3
-      with:
-          args: --timeout=5m
     - name: install deps
       run: go install golang.org/x/tools/cmd/goimports@latest && go install github.com/klauspost/asmfmt/cmd/asmfmt@latest
     - name: gofmt
@@ -35,24 +31,35 @@ jobs:
         go generate ./...
         git update-index --assume-unchanged go.mod
         git update-index --assume-unchanged go.sum
-        if [[ -n $(git status --porcelain) ]]; then echo "git repo is dirty after runing go generate -- please don't modify generated files"; echo $(git diff);echo $(git status --porcelain); exit 1; fi
+        if [[ -n $(git status --porcelain) ]]; then echo "git repo is dirty after running go generate -- please don't modify generated files"; echo $(git diff);echo $(git status --porcelain); exit 1; fi
+
+     # hack to ensure golanglint process generated files
+    - name: remove "generated by" comments from generated files 
+      run: |
+        find . -type f -name '*.go' -exec sed -i 's/Code generated by .* DO NOT EDIT/FOO/g' {} \;
+      # on macos: find . -type f -name '*.go' -exec sed -i '' -E 's/Code generated by .* DO NOT EDIT/FOO/g' {} \;
+
+    - name: golangci-lint
+      uses: golangci/golangci-lint-action@v3
+      with:
+          args: --timeout=5m
 
   test:
     strategy:
       matrix:
-        go-version: [1.19.x]
+        go-version: [1.20.x]
         os: [ubuntu-latest]
     runs-on: ${{ matrix.os }}
     needs:
       - staticcheck
     steps:
     - name: install Go
-      uses: actions/setup-go@v2
+      uses: actions/setup-go@v3
       with:
         go-version: ${{ matrix.go-version }}
     - name: checkout code
-      uses: actions/checkout@v2
-    - uses: actions/cache@v2
+      uses: actions/checkout@v3
+    - uses: actions/cache@v3
       with:
         path: |
           ~/go/pkg/mod
@@ -63,10 +70,19 @@ jobs:
         restore-keys: |
           ${{ runner.os }}-go-
     - name: install deps
-      run: go install golang.org/x/tools/cmd/goimports@latest && go install github.com/klauspost/asmfmt/cmd/asmfmt@latest
+      run: |
+        go install golang.org/x/tools/cmd/goimports@latest && go install github.com/klauspost/asmfmt/cmd/asmfmt@latest
+        go install github.com/ethereum/go-ethereum/cmd/abigen@v1.12.0
+        go install github.com/consensys/gnark-solidity-checker@latest
+        sudo add-apt-repository ppa:ethereum/ethereum
+        sudo apt-get update
+        sudo apt-get install solc
     - name: Test
       run: |
-        go test -v -short -timeout=30m ./...
+        go test -v -short -tags=solccheck -timeout=30m ./...
+    - name: Test race
+      run: |
+        go test -v -short -race -timeout=30m
   
   slack-workflow-status-failed:
     if: failure()
@@ -78,15 +94,16 @@ jobs:
     steps:
       - name: Notify slack -- workflow failed
         id: slack
-        uses: slackapi/slack-github-action@v1.19.0
+        uses: slackapi/slack-github-action@v1.23.0
         with:
           payload: |
             {
               "actor": "${{ github.actor }}",
               "repo": "${{ github.repository }}",
               "status": "FAIL",
               "title": "${{ github.event.pull_request.title }}",
-              "pr": "${{ github.event.pull_request.head.ref }}"
+              "pr": "${{ github.event.pull_request.head.ref }}",
+              "failed_step_url": "${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}/"
             }
         env:
           SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}
@@ -101,7 +118,7 @@ jobs:
     steps:
       - name: Notify slack -- workflow succeeded
         id: slack
-        uses: slackapi/slack-github-action@v1.19.0
+        uses: slackapi/slack-github-action@v1.23.0
         with:
           payload: |
             {

.github/workflows/push.yml

@@ -9,14 +9,14 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: install Go
-      uses: actions/setup-go@v2
+      uses: actions/setup-go@v3
       with:
-        go-version: 1.19.x
+        go-version: 1.20.x
     - name: checkout code
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
       with:
         fetch-depth: 0
-    - uses: actions/cache@v2
+    - uses: actions/cache@v3
       with:
         path: |
           ~/go/pkg/mod
@@ -26,10 +26,8 @@ jobs:
         key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
         restore-keys: |
           ${{ runner.os }}-go-
-    - name: golangci-lint
-      uses: golangci/golangci-lint-action@v3
-      with:
-          args: --timeout=5m
+
+
     - name: install deps
       run: go install golang.org/x/tools/cmd/goimports@latest && go install github.com/klauspost/asmfmt/cmd/asmfmt@latest
     - name: gofmt
@@ -39,24 +37,36 @@ jobs:
         go generate ./...
         git update-index --assume-unchanged go.mod
         git update-index --assume-unchanged go.sum
-        if [[ -n $(git status --porcelain) ]]; then echo "git repo is dirty after runing go generate -- please don't modify generated files"; echo $(git diff);echo $(git status --porcelain); exit 1; fi
+        if [[ -n $(git status --porcelain) ]]; then echo "git repo is dirty after running go generate -- please don't modify generated files"; echo $(git diff);echo $(git status --porcelain); exit 1; fi
+
+     # hack to ensure golanglint process generated files
+    - name: remove "generated by" comments from generated files 
+      run: |
+        find . -type f -name '*.go' -exec sed -i 's/Code generated by .* DO NOT EDIT/FOO/g' {} \;
+      # on macos: find . -type f -name '*.go' -exec sed -i '' -E 's/Code generated by .* DO NOT EDIT/FOO/g' {} \;
+
+    - name: golangci-lint
+      uses: golangci/golangci-lint-action@v3
+      with:
+          args: --timeout=5m
+
 
   test:
     strategy:
       matrix:
-        go-version: [1.19.x]
+        go-version: [1.20.x]
         os: [ubuntu-latest, windows-latest, macos-latest]
     runs-on: ${{ matrix.os }}
     needs:
       - staticcheck
     steps:
     - name: install Go
-      uses: actions/setup-go@v2
+      uses: actions/setup-go@v3
       with:
         go-version: ${{ matrix.go-version }}
     - name: checkout code
-      uses: actions/checkout@v2
-    - uses: actions/cache@v2
+      uses: actions/checkout@v3
+    - uses: actions/cache@v3
       with:
         path: |
           ~/go/pkg/mod
@@ -86,15 +96,16 @@ jobs:
     steps:
       - name: Notify slack -- workflow failed
         id: slack
-        uses: slackapi/slack-github-action@v1.19.0
+        uses: slackapi/slack-github-action@v1.23.0
         with:
           payload: |
             {
               "actor": "${{ github.actor }}",
               "repo": "${{ github.repository }}",
               "status": "FAIL",
               "title": "push to ${{ github.event.push.base_ref }}",
-              "pr": ""
+              "pr": "",
+              "failed_step_url": "${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}/"
             }
         env:
           SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}
@@ -109,7 +120,7 @@ jobs:
     steps:
       - name: Notify slack -- workflow succeeded
         id: slack
-        uses: slackapi/slack-github-action@v1.19.0
+        uses: slackapi/slack-github-action@v1.23.0
         with:
           payload: |
             {

.gitignore

@@ -50,3 +50,9 @@ gnarkd/circuits/**
 
 # Jetbrains stuff
 .idea/
+
+# go workspace
+go.work
+go.work.sum
+
+examples/gbotrel/**

README.md

@@ -122,17 +122,17 @@ If you use `gnark` in your research a citation would be appreciated.
 Please use the following BibTeX to cite the most recent release.
 
 ```bib
-@software{gnark-v0.8.0,
+@software{gnark-v0.9.0,
   author       = {Gautam Botrel and
                   Thomas Piellard and
                   Youssef El Housni and
                   Ivo Kubjas and
                   Arya Tabaie},
-  title        = {ConsenSys/gnark: v0.8.0},
+  title        = {ConsenSys/gnark: v0.9.0},
   month        = feb,
   year         = 2023,
   publisher    = {Zenodo},
-  version      = {v0.8.0},
+  version      = {v0.9.0},
   doi          = {10.5281/zenodo.5819104},
   url          = {https://doi.org/10.5281/zenodo.5819104}
 }

backend/backend.go

@@ -15,11 +15,7 @@
 // Package backend implements Zero Knowledge Proof systems: it consumes circuit compiled with gnark/frontend.
 package backend
 
-import (
-	"github.com/consensys/gnark/backend/hint"
-	"github.com/consensys/gnark/logger"
-	"github.com/rs/zerolog"
-)
+import "github.com/consensys/gnark/constraint/solver"
 
 // ID represent a unique ID for a proving scheme
 type ID uint16
@@ -50,26 +46,20 @@ func (id ID) String() string {
 	}
 }
 
-// ProverOption defines option for altering the behaviour of the prover in
+// ProverOption defines option for altering the behavior of the prover in
 // Prove, ReadAndProve and IsSolved methods. See the descriptions of functions
 // returning instances of this type for implemented options.
 type ProverOption func(*ProverConfig) error
 
 // ProverConfig is the configuration for the prover with the options applied.
 type ProverConfig struct {
-	Force         bool                      // defaults to false
-	HintFunctions map[hint.ID]hint.Function // defaults to all built-in hint functions
-	CircuitLogger zerolog.Logger            // defaults to gnark.Logger
+	SolverOpts []solver.Option
 }
 
 // NewProverConfig returns a default ProverConfig with given prover options opts
 // applied.
 func NewProverConfig(opts ...ProverOption) (ProverConfig, error) {
-	log := logger.Logger()
-	opt := ProverConfig{CircuitLogger: log, HintFunctions: make(map[hint.ID]hint.Function)}
-	for _, v := range hint.GetRegistered() {
-		opt.HintFunctions[hint.UUID(v)] = v
-	}
+	opt := ProverConfig{}
 	for _, option := range opts {
 		if err := option(&opt); err != nil {
 			return ProverConfig{}, err
@@ -78,42 +68,10 @@ func NewProverConfig(opts ...ProverOption) (ProverConfig, error) {
 	return opt, nil
 }
 
-// IgnoreSolverError is a prover option that indicates that the Prove algorithm
-// should complete even if constraint system is not solved. In that case, Prove
-// will output an invalid Proof, but will execute all algorithms which is useful
-// for test and benchmarking purposes.
-func IgnoreSolverError() ProverOption {
-	return func(opt *ProverConfig) error {
-		opt.Force = true
-		return nil
-	}
-}
-
-// WithHints is a prover option that specifies additional hint functions to be used
-// by the constraint solver.
-func WithHints(hintFunctions ...hint.Function) ProverOption {
-	log := logger.Logger()
-	return func(opt *ProverConfig) error {
-		// it is an error to register hint function several times, but as the
-		// prover already checks it then omit here.
-		for _, h := range hintFunctions {
-			uuid := hint.UUID(h)
-			if _, ok := opt.HintFunctions[uuid]; ok {
-				log.Warn().Int("hintID", int(uuid)).Str("name", hint.Name(h)).Msg("duplicate hint function")
-			} else {
-				opt.HintFunctions[uuid] = h
-			}
-		}
-		return nil
-	}
-}
-
-// WithCircuitLogger is a prover option that specifies zerolog.Logger as a destination for the
-// logs printed by api.Println(). By default, uses gnark/logger.
-// zerolog.Nop() will disable logging
-func WithCircuitLogger(l zerolog.Logger) ProverOption {
+// WithSolverOptions specifies the constraint system solver options.
+func WithSolverOptions(solverOpts ...solver.Option) ProverOption {
 	return func(opt *ProverConfig) error {
-		opt.CircuitLogger = l
+		opt.SolverOpts = solverOpts
 		return nil
 	}
 }