d0f5aa670b
Our context package predates the establishment of current best practices regarding context usage and it shows. It encourages bad practices such as using contexts to propagate non-request-scoped values like the application version and using string-typed keys for context values. Move the package internal to remove it from the API surface of distribution/v3@v3.0.0 so we are free to iterate on it without being constrained by compatibility. Signed-off-by: Cory Snider <csnider@mirantis.com>
22 lines
728 B
Go
22 lines
728 B
Go
package dcontext
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import "context"
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type versionKey struct{}
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func (versionKey) String() string { return "version" }
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// WithVersion stores the application version in the context. The new context
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// gets a logger to ensure log messages are marked with the application
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// version.
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func WithVersion(ctx context.Context, version string) context.Context {
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ctx = context.WithValue(ctx, versionKey{}, version)
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// push a new logger onto the stack
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return WithLogger(ctx, GetLogger(ctx, versionKey{}))
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}
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// GetVersion returns the application version from the context. An empty
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// string may returned if the version was not set on the context.
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func GetVersion(ctx context.Context) string {
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return GetStringValue(ctx, versionKey{})
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}
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