Gemini LLM redacting implementation and docs (#6)

Cargo.toml

@@ -9,7 +9,7 @@ repository = "https://github.com/abdolence/redacter-rs"
 documentation = "https://docs.rs/redacter"
 readme = "README.md"
 include = ["Cargo.toml", "src/**/*.rs", "README.md", "LICENSE"]
-rust-version = "1.77.0"
+rust-version = "1.80.0"
 keywords = ["redact", "pii", "dlp"]
 categories = ["command-line-utilities"]
 description = "Copy & Redact files cli tool utilizing Data Loss Prevention (DLP) capabilities"
@@ -19,7 +19,8 @@ default = []
 ci-gcp = [] # For testing on CI/GCP
 ci-aws = [] # For testing on CI/AWS
 ci-ms-presidio = [] # For testing on CI/MS Presidiom
-ci = ["ci-gcp", "ci-aws", "ci-ms-presidio"]
+ci-gcp-llm = [] # For testing on CI/GCP with LLM models
+ci = ["ci-gcp", "ci-aws", "ci-ms-presidio", "ci-gcp-llm"]
 
 
 [dependencies]
@@ -32,7 +33,7 @@ indicatif = { version = "0.17" }
 clap = { version = "4.1", features = ["derive"] }
 tokio = { version = "1.14", features = ["fs", "rt-multi-thread", "sync", "rt", "macros"] }
 tokio-util = { version = "0.7", features = ["compat"] }
-gcloud-sdk = { version = "0.25.4", features = ["google-privacy-dlp-v2", "google-rest-storage-v1"] }
+gcloud-sdk = { version = "0.25.5", features = ["google-privacy-dlp-v2", "google-rest-storage-v1", "google-ai-generativelanguage-v1beta"] }
 futures = "0.3"
 sha2 = "0.10"
 async-trait = "0.1"
@@ -51,6 +52,8 @@ aws-sdk-s3 = { version = "1" }
 aws-sdk-comprehend = { version = "1" }
 url = "2"
 reqwest = { version = "0.12", default-features = false, features = ["multipart", "rustls-tls"] }
+tracing = "0.1"
+tracing-subscriber = { version = "0.3", features = ["env-filter"] }
 
 
 [dev-dependencies]

README.md

@@ -4,8 +4,9 @@
 
 # Redacter
 
-Copy & Redact cli tool to securely copy and redact files across various sources and destinations,
-utilizing Data Loss Prevention (DLP) capabilities.
+Copy & Redact cli tool to securely copy and redact files removing Personal Identifiable Information (PII)
+across various sources and destinations and utilizing Data Loss Prevention (DLP) capabilities.
+
 The tool doesn't implement DLP itself, but rather relies on external models such as
 Google Cloud Platform's DLP API.
 
@@ -25,11 +26,14 @@ Google Cloud Platform's DLP API.
         * text, html, json files
         * structured data table files (csv)
         * images (jpeg, png, bpm, gif)
-    * [AWS Comprehend](https://aws.amazon.com/comprehend/) PII redaction for text files.
+    * [AWS Comprehend](https://aws.amazon.com/comprehend/) PII redaction:
+        * text, html, csv, json files
     * [Microsoft Presidio](https://microsoft.github.io/presidio/) for PII redaction (open source project that you can
       install on-prem).
-        * text, html, json files
+        * text, html, csv, json files
         * images
+    * [Gemini LLM](https://ai.google.dev/gemini-api/docs) based redaction
+        * text, html, csv, json files
     * ... more DLP providers can be added in the future.
 * **CLI:**  Easy-to-use command-line interface for streamlined workflows.
 * Built with Rust to ensure speed, safety, and reliability.
@@ -63,7 +67,7 @@ Options:
   -f, --filename-filter <FILENAME_FILTER>
           Filter by name using glob patterns such as *.txt
   -d, --redact <REDACT>
-          Redacter type [possible values: gcp-dlp, aws-comprehend, ms-presidio]
+          Redacter type [possible values: gcp-dlp, aws-comprehend, ms-presidio, gemini-llm]
       --gcp-project-id <GCP_PROJECT_ID>
           GCP project id that will be used to redact and bill API calls
       --allow-unsupported-copies
@@ -78,6 +82,8 @@ Options:
           URL for text analyze endpoint for MsPresidio redacter
       --ms-presidio-image-redact-url <MS_PRESIDIO_IMAGE_REDACT_URL>
           URL for image redact endpoint for MsPresidio redacter
+      --gemini-model <GEMINI_MODEL>
+          Gemini model name for Gemini LLM redacter. Default is 'models/gemini-1.5-flash'
   -h, --help
           Print help
 ```
@@ -97,8 +103,11 @@ Source/destination can be a local file or directory, or a file in GCS, S3, or a
 
 ### Google Cloud Platform DLP
 
-To be able to use GCP DLP you need to authenticate using `gcloud auth application-default login` or provide a service
-account key using `GOOGLE_APPLICATION_CREDENTIALS` environment variable.
+To be able to use GCP DLP you need to:
+
+- authenticate using `gcloud auth application-default login` or provide a service account key
+  using `GOOGLE_APPLICATION_CREDENTIALS` environment variable.
+- provide a GCP project id using `--gcp-project-id` option.
 
 ### AWS Comprehend
 
@@ -113,6 +122,17 @@ You can use Docker to run it locally or deploy it to your infrastructure.
 You need to provide the URLs for text analysis and image redaction endpoints using `--ms-presidio-text-analyze-url` and
 `--ms-presidio-image-redact-url` options.
 
+### Gemini LLM
+
+To be able to use GCP DLP you need to:
+
+- authenticate using `gcloud auth application-default login --client-id-file=<client_secret-file>.json` or provide a
+  service account key
+  using `GOOGLE_APPLICATION_CREDENTIALS` environment variable.
+  Please note that you need to also configure OAuth setup following the
+  official [instructions](https://ai.google.dev/gemini-api/docs/oauth#set-cloud).
+- provide a GCP project id using `--gcp-project-id` option.
+
 ## Examples:
 
 ```sh