phabricator: add phabupdate command to update status in batch Changing status (accept, etc) on the webpage is not very convenient - currently there is no way to accept (or abandon etc.) a stack using a single click or command. This patch adds a `phabupdate` command that could be used to change status in batch. It also supports `--comment` which will write a comment on the last revision, which is similar to what we do using emails. Differential Revision: https://phab.mercurial-scm.org/D127

phabricator: add status to revision query language This patch adds status words (ex. `abandoned`, `accepted`, `needsreview`, `needsrevision`, `closed`) to the revision query language so people can select revision in a more flexible way. Test Plan: Try something like `phabread ':2 & accepted'`, `phabread ':105 - closed` and make sure they have desired outputs. Differential Revision: https://phab.mercurial-scm.org/D126

phabricator: add a small language to query Differential Revisions Previously, `phabread` can only be used to read a single patch, or a single stack of patches. In the future, we want to have more complex queries like filtering with status (open, accepted, closed, etc), or maybe more complex like filtering by reviewers etc. The command line flag approach won't scale with that. Besides, we might want to have other commands to update Differential Revision status in batch, like accepting a stack using a single command. Therefore, this patch adds a small language. It has basic set operations: `&`, `+`, `-` and an ancestor operator to support `--stack`. Test Plan: Try querying this Phabricator instance: hg phabread 1+2 # 1, 2 hg phabread D2+D1 # 2, 1 hg phabread ':118-115+:2-1' # 114, 116, 117, 118, 2 hg phabread '((:118-(D115+117)))&:117' # 114, 116 hg phabread ':2&:117' --debug # differential.query is called only once Make sure the output is expected and prefetch works. Differential Revision: https://phab.mercurial-scm.org/D125