alias: keep error message in "badalias" so that help can see it Upcoming patches will - change help_() to get badalias message without executing cmdalias() - raise Abort on bad alias

alias: add test for alias command provided by disabled extension This should complete cases where "badalias" is set.

alias: expand "$@" as list of parameters quoted individually (BC) (issue4200) Before this patch, there was no way to pass in all the positional parameters as separate words down to another command. (1) $@ (without quotes) would expand to all the parameters separated by a space. This would work fine for arguments without spaces, but arguments with spaces in them would be split up by POSIX shells into separate words. (2) '$@' (in single quotes) would expand to all the parameters within a pair of single quotes. POSIX shells would then treat the entire list of arguments as one word. (3) "$@" (in double quotes) would expand similarly to (2). With this patch, we expand "$@" (in double quotes) as all positional parameters, quoted individually with util.shellquote, and separated by spaces. Under standard field-splitting conditions, POSIX shells will tokenize each argument into exactly one word. This is a backwards-incompatible change, but the old behavior was arguably a bug: Bourne-derived shells have expanded "$@" as a tokenized list of positional parameters for a very long time. I could find this behavior specified in IEEE Std 1003.1-2001, and this probably goes back to much further before that.

test-alias: add some tests to ensure we aren't double-substituting An earlier iteration of an upcoming patch caused inadvertent double substitution. Ensure we have test coverage for this.

revert: issue "no changes needed" message for files missing on both side When a file was marked as removed in the working copy and did not existed in the target of the revert, we did not issued any message pointing that no change was needed to the file (implicitly saying that revert had changed the file). We now properly issue a message in this situation. Tests change in and handful of case where the message was documented as missing.

revert: call status against revert target too We now call status against the target (and possibly against the working directory parent is different). We do not use the information from the two sources yet, but this is coming soon. We need the status information aganst the dirstate in all case because we need to be able to backup local modification.

revert: prefix variable names for dirstate status with "ds" As we are going to introduce status again other revision we needs to distinguish between data from dirstate status and the other one. We prefix the existing data with "ds" to highlight this.

revert: move manifest membership condition outside of the loop Currently, revset is using information from dirstate status and alter its behavior whenever the file exist in the target manifest or not. This tests are done a big for loop. We move this member ship testing outside of the loop and simplifies associates data structure. This is a step toward a cleaner implementation of revert based on status.

histedit: add "roll" command to fold commit data and drop message (issue4256) This new histedit command (short for "rollup") is a variant of "fold" akin to "hg amend" for working copy: it accumulates changes without interrupting the user and asking for an updated commit message.

repoview: cache hidden changesets Use the introduced caching infrastructure to cache hidden changesets. We crosscheck if the content of the cache unless experimental.verifyhiddencache is set to False. This will be removed in the future. Without crosschecking the caches speed ups hg status and other commands: without caching: $ time hg status hg status 0.72s user 0.20s system 100% cpu 0.917 total with caching $ time hg status hg status 0.49s user 0.15s system 100% cpu 0.645 total