buildExporters builds trace, metric, and log exporters based on the provided configuration.

buildGRPCLogExporter builds a GRPC log exporter based on the provided configuration.

buildGRPCMetricExporter builds a GRPC metric exporter based on the provided configuration.

buildGRPCTraceExporter builds a GRPC trace exporter based on the provided configuration.

buildHTTPLogExporter builds an HTTP log exporter based on the provided configuration.

buildHTTPMetricExporter builds an HTTP metric exporter based on the provided configuration.

buildHTTPTraceExporter builds an HTTP trace exporter based on the provided configuration.

buildLogExporter builds a log exporter based on the protocol in the configuration.

buildMetricExporter builds a metric exporter based on the protocol in the configuration.

buildStackTrace gets the stack trace from the outermost error and marks which frames correspond to which errors in the chain.

buildTLSConfig constructs a tls.Config based on the provided configuration.

buildTraceExporter builds a trace exporter based on the protocol in the configuration.

calcDct2Hash calculates the DCT hash for the given image data buffer

calcSha256Hash calculates the SHA-256 hash for the given image data buffer

calculateHash converts image data to RGBA using VIPS and calculates hash

callWithClient is a helper function to call S3 client method with automatic region error handling

callers returns the stack trace, skipping the specified number of frames.

checkBOM checks for a Byte Order Mark (BOM) at the start of the stream and adjusts the reader accordingly.

checkPartialContentResponse if the response is a partial content response, we check if it contains the entire image.

closeGroup closes the most recently opened group of attributes.

computeEtag determines whether the If-None-Match header should be sent to the source image server. It returns etag value to be set and boolean indicat

computeIfModifiedSince determines whether the If-Modified-Since header should be sent to the source image server. It returns value to be set (if any)

dctHashDistance calculates the distance between two DCT hashes

deepEqual recursively verifies that all values are equal but pointers are different except for the Expires field which is explicitly allowed to be sha

detectContentType detects the content type of a file by mime or extension

determineOutputFormat determines the output image format based on the processing options and image properties. It modifies the ProcessingOptions in p

docsUrl returns the documentation URL for the env var

dumpDctHash writes the DCT hash to a writer

execute handles the actual streaming logic

execute handles the actual processing logic

extractErraticBody extracts the error body from the response if it is a text-based content type

fetchImage downloads the source image asynchronously

finalizePipeline constructs the finalization pipeline. This pipeline is applied before saving the image.

findPreferredFormat finds a suitable preferred format based on image's properties.

findProjectRoot finds the absolute path to the project root by looking for go.mod

flush unlocks the reader, allowing it to return all data as usual

flushHeaders writes the headers to the response writer. It does not overwrite target headers, which were set outside the header writer.

generateErrorHTML renders the error page template with the given error information. It returns the generated HTML as a byte slice and a Content-Type s

getBuildInfo returns the Go version and Git commit hash.

getColor returns the terminal color sequences for a given log level.

getCookieJar returns non-empty cookie jar if cookie passthrough is enabled

getFallbackImage returns fallback image if any

getImageRequestHeaders returns a new http.Header containing only the headers that should be passed through from the user request

getRequestID tries to read request id from headers or from lambda context or generates a new one if nothing found.

guessTargetColorspace returns the colorspace to which the image should be saved. If target format supports 16-bit colorspace, it will be preferred.

handleDownloadError replaces the image data with fallback image if needed

handleProcInstEncoding replaces the encoding declaration in the processing instruction data with "UTF-8" and returns the updated data. It also recreat