otlp: Prometheus to own the otlptranslator package

Relates to #13842

After a lot of productive discussion between the Prometheus and
OpenTelemetry community we decided that it made sense for Prometheus to
own its own copy of the code in charge for handling OTLP ingestion
traffic.

This commit is removing the README and update-copy.sh files that had the
previous steps to update the code.

Also it is updating the licensing of all the files to make sure the
OpenTelemetry provenance is explicit and to state the new ownership.

Signed-off-by: Jesus Vazquez <jesusvzpg@gmail.com>
Co-authored-by: Arve Knudsen <arve.knudsen@gmail.com>

storage/remote/otlptranslator/prometheus/normalize_label.go

@@ -1,9 +1,20 @@
-// DO NOT EDIT. COPIED AS-IS. SEE ../README.md
-
-// Copyright The OpenTelemetry Authors
-// SPDX-License-Identifier: Apache-2.0
+// Copyright 2024 The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+// Provenance-includes-location: https://github.com/open-telemetry/opentelemetry-collector-contrib/blob/main/pkg/translator/prometheus/normalize_label.go
+// Provenance-includes-license: Apache-2.0
+// Provenance-includes-copyright: Copyright The OpenTelemetry Authors.
 
-package prometheus // import "github.com/prometheus/prometheus/storage/remote/otlptranslator/prometheus"
+package prometheus
 
 import (
 	"strings"

storage/remote/otlptranslator/prometheus/normalize_name.go

@@ -1,9 +1,20 @@
-// DO NOT EDIT. COPIED AS-IS. SEE ../README.md
-
-// Copyright The OpenTelemetry Authors
-// SPDX-License-Identifier: Apache-2.0
-
-package prometheus // import "github.com/prometheus/prometheus/storage/remote/otlptranslator/prometheus"
+// Copyright 2024 The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+// Provenance-includes-location: https://github.com/open-telemetry/opentelemetry-collector-contrib/blob/main/pkg/translator/prometheus/normalize_name.go
+// Provenance-includes-license: Apache-2.0
+// Provenance-includes-copyright: Copyright The OpenTelemetry Authors.
+
+package prometheus
 
 import (
 	"strings"

storage/remote/otlptranslator/prometheus/unit_to_ucum.go

@@ -1,9 +1,20 @@
-// DO NOT EDIT. COPIED AS-IS. SEE ../README.md
+// Copyright 2024 The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+// Provenance-includes-location: https://github.com/open-telemetry/opentelemetry-collector-contrib/blob/main/pkg/translator/prometheus/unit_to_ucum.go
+// Provenance-includes-license: Apache-2.0
+// Provenance-includes-copyright: Copyright The OpenTelemetry Authors.
 
-// Copyright The OpenTelemetry Authors
-// SPDX-License-Identifier: Apache-2.0
-
-package prometheus // import "github.com/prometheus/prometheus/storage/remote/otlptranslator/prometheus"
+package prometheus
 
 import "strings"
 

storage/remote/otlptranslator/prometheusremotewrite/helper.go

@@ -1,9 +1,20 @@
-// DO NOT EDIT. COPIED AS-IS. SEE ../README.md
-
-// Copyright The OpenTelemetry Authors
-// SPDX-License-Identifier: Apache-2.0
+// Copyright 2024 The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+// Provenance-includes-location: https://github.com/open-telemetry/opentelemetry-collector-contrib/blob/main/pkg/translator/prometheusremotewrite/helper.go
+// Provenance-includes-license: Apache-2.0
+// Provenance-includes-copyright: Copyright The OpenTelemetry Authors.
 
-package prometheusremotewrite // import "github.com/prometheus/prometheus/storage/remote/otlptranslator/prometheusremotewrite"
+package prometheusremotewrite
 
 import (
 	"encoding/hex"
@@ -17,13 +28,13 @@ import (
 	"unicode/utf8"
 
 	"github.com/prometheus/common/model"
-	"github.com/prometheus/prometheus/model/timestamp"
-	"github.com/prometheus/prometheus/model/value"
-	"github.com/prometheus/prometheus/prompb"
 	"go.opentelemetry.io/collector/pdata/pcommon"
 	"go.opentelemetry.io/collector/pdata/pmetric"
 	conventions "go.opentelemetry.io/collector/semconv/v1.6.1"
 
+	"github.com/prometheus/prometheus/model/timestamp"
+	"github.com/prometheus/prometheus/model/value"
+	"github.com/prometheus/prometheus/prompb"
 	prometheustranslator "github.com/prometheus/prometheus/storage/remote/otlptranslator/prometheus"
 )
 

storage/remote/otlptranslator/prometheusremotewrite/histograms.go

@@ -1,19 +1,31 @@
-// DO NOT EDIT. COPIED AS-IS. SEE ../README.md
-
-// Copyright The OpenTelemetry Authors
-// SPDX-License-Identifier: Apache-2.0
+// Copyright 2024 The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+// Provenance-includes-location: https://github.com/open-telemetry/opentelemetry-collector-contrib/blob/main/pkg/translator/prometheusremotewrite/histograms.go
+// Provenance-includes-license: Apache-2.0
+// Provenance-includes-copyright: Copyright The OpenTelemetry Authors.
 
-package prometheusremotewrite // import "github.com/prometheus/prometheus/storage/remote/otlptranslator/prometheusremotewrite"
+package prometheusremotewrite
 
 import (
 	"fmt"
 	"math"
 
 	"github.com/prometheus/common/model"
-	"github.com/prometheus/prometheus/model/value"
-	"github.com/prometheus/prometheus/prompb"
 	"go.opentelemetry.io/collector/pdata/pcommon"
 	"go.opentelemetry.io/collector/pdata/pmetric"
+
+	"github.com/prometheus/prometheus/model/value"
+	"github.com/prometheus/prometheus/prompb"
 )
 
 const defaultZeroThreshold = 1e-128

storage/remote/otlptranslator/prometheusremotewrite/metrics_to_prw.go

@@ -1,19 +1,30 @@
-// DO NOT EDIT. COPIED AS-IS. SEE ../README.md
+// Copyright 2024 The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+// Provenance-includes-location: https://github.com/open-telemetry/opentelemetry-collector-contrib/blob/main/pkg/translator/prometheusremotewrite/metrics_to_prw.go
+// Provenance-includes-license: Apache-2.0
+// Provenance-includes-copyright: Copyright The OpenTelemetry Authors.
 
-// Copyright The OpenTelemetry Authors
-// SPDX-License-Identifier: Apache-2.0
-
-package prometheusremotewrite // import "github.com/prometheus/prometheus/storage/remote/otlptranslator/prometheusremotewrite"
+package prometheusremotewrite
 
 import (
 	"errors"
 	"fmt"
 
-	"github.com/prometheus/prometheus/prompb"
 	"go.opentelemetry.io/collector/pdata/pcommon"
 	"go.opentelemetry.io/collector/pdata/pmetric"
 	"go.uber.org/multierr"
 
+	"github.com/prometheus/prometheus/prompb"
 	prometheustranslator "github.com/prometheus/prometheus/storage/remote/otlptranslator/prometheus"
 )
 

storage/remote/otlptranslator/prometheusremotewrite/number_data_points.go

@@ -1,18 +1,30 @@
-// DO NOT EDIT. COPIED AS-IS. SEE ../README.md
+// Copyright 2024 The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+// Provenance-includes-location: https://github.com/open-telemetry/opentelemetry-collector-contrib/blob/main/pkg/translator/prometheusremotewrite/number_data_points.go
+// Provenance-includes-license: Apache-2.0
+// Provenance-includes-copyright: Copyright The OpenTelemetry Authors.
 
-// Copyright The OpenTelemetry Authors
-// SPDX-License-Identifier: Apache-2.0
-
-package prometheusremotewrite // import "github.com/prometheus/prometheus/storage/remote/otlptranslator/prometheusremotewrite"
+package prometheusremotewrite
 
 import (
 	"math"
 
 	"github.com/prometheus/common/model"
-	"github.com/prometheus/prometheus/model/value"
-	"github.com/prometheus/prometheus/prompb"
 	"go.opentelemetry.io/collector/pdata/pcommon"
 	"go.opentelemetry.io/collector/pdata/pmetric"
+
+	"github.com/prometheus/prometheus/model/value"
+	"github.com/prometheus/prometheus/prompb"
 )
 
 // addSingleGaugeNumberDataPoint converts the Gauge metric data point to a

storage/remote/otlptranslator/prometheusremotewrite/otlp_to_openmetrics_metadata.go

@@ -1,14 +1,25 @@
-// DO NOT EDIT. COPIED AS-IS. SEE ../README.md
+// Copyright 2024 The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+// Provenance-includes-location: https://github.com/open-telemetry/opentelemetry-collector-contrib/blob/main/pkg/translator/prometheusremotewrite/otlp_to_openmetrics_metadata.go
+// Provenance-includes-license: Apache-2.0
+// Provenance-includes-copyright: Copyright The OpenTelemetry Authors.
 
-// Copyright The OpenTelemetry Authors
-// SPDX-License-Identifier: Apache-2.0
-
-package prometheusremotewrite // import "github.com/prometheus/prometheus/storage/remote/otlptranslator/prometheusremotewrite"
+package prometheusremotewrite
 
 import (
-	"github.com/prometheus/prometheus/prompb"
 	"go.opentelemetry.io/collector/pdata/pmetric"
 
+	"github.com/prometheus/prometheus/prompb"
 	prometheustranslator "github.com/prometheus/prometheus/storage/remote/otlptranslator/prometheus"
 )