bundle2: prefix all unbundling debug message with 'bundle2-input:' This make the origin of the message more explicit.

bundle2: introduce a specific function for debug messages while unbundling The bundling process is very verbose, we would like to be able to hide such output behind a configuration flag and have it more explicitly referencing bundle2. The first step is to gather all these messages in a dedicated function.

bundle2: add an informative comment to the capability dict It is fairly easy to get confused by capabilities "missing" from this dict. We make it clear the dict is not the whole story.

merge with stable

bundle2: handle new line in 'outdebug' function Now that we have a prefix, it make sense to assume all output will be on a single line.

bundle2: prefix all bundling debug messages with 'bundle2-ouput:' This makes the origin of the message more explicit.

bundle2: introduce a specific function for bundling debug message The bundling process is very verbose, we would like to be able to hide such output behind a configuration flag and have it more explicitly referencing bundle2. The first step is to gather all these messages in a dedicated function. The same gathering will be later do for debug message issue by unbundling.

parsers: simplify the code computing the phases We recently simplified the code computing the heads of a repo. This patch uses the same simplification for phase computation. We use index_get_parents instead of replicating its code.

parsers: move index_get_parents's declaration higher index_get_parents needs to be used in the phase computation code so we need to move its declaration higher to be able to call it. It cannot be moved any higher than that so we won't have any more patch doing the same thing.

record: add an operation arguments to customize recording ui This patch is part of a series of patches to change the recording ui to reflect the operation currently running (commit, shelve, revert ...). This patch adds a new argument to the recording function to reflect in the UI what operation we are running.