Read SEXP, a provenance sexp as created by 'channel-instance->sexp'; use NAME as the channel name if SEXP does not specify it. Return #f if the sexp does not have the expected structure.

Return a list of channel instances corresponding to the latest checkouts of CHANNELS and the channels on which they depend.

When AUTHENTICATE? is true, authenticate the subset of CHANNELS that has a "channel introduction".

When VERIFY-CERTIFICATE? is false, invalid X.509 host certificates are accepted.

CURRENT-CHANNELS is the list of currently used channels. It is compared against the newly-fetched instances of CHANNELS, and VALIDATE-PULL is called for each channel update and can choose to emit warnings or raise an error, depending on the policy it implements.

Return an sexp representation of INSTANCE, a channel instance.

Return the channel ENTRY corresponds to, or #f if that information is missing or unreadable. ENTRY must be an entry created by 'channel-instances->manifest', with the 'source' property.

Return a profile manifest with entries for all of INSTANCES, a list of channel instances. By default, build for the current system, or SYSTEM if specified. If BUILT-IN-BUILDERS is provided, it should be a list of strings and this will be used instead of the builtin builders provided by the build daemon for store connections used during this process.

Return the "reference" for CHANNEL, an sexp suitable for 'latest-repository-commit'.

Return code (an sexp) to build CHANNEL. When INCLUDE-INTRODUCTION? is true, include its introduction, if any.

Return a list of <channel-news-entry> for CHANNEL between commits OLD and NEW. When OLD is omitted or is #f, return all the news entries of CHANNEL.

Authenticate the given COMMIT of CHANNEL, available at CHECKOUT, a directory containing a CHANNEL checkout. Raise an error if authentication fails.

Return the build associated with JOB.