amend: use "editor" argument for "memctx.__init__" to save commit message This patch uses "editor" argument of "memctx.__init__" to save commit message, instead of explicit editor invocation and saving commit message by "localrepository.savecommitmessage()". By passing one of "commiteditor" or "commitforceeditor" as "editor", "memctx.__init__" saves commit message, even when editor invocation is not needed.

histedit: pass "editor" argument to "memctx.__init__()" for "collapse" command The preceding patch causes that "memctx.__init__()" with "editor" argument invokes editor and saves edited commit message into ".hg/last-message.txt". This patch passes "editor" argument to "memctx.__init__()" instead of explicit invocations of "commitforceeditor()" and "savecommitmessage()" for "collapse" command.

context: move editor invocation from "makememctx()" to "memctx.__init__()" This patch introduces "editor" argument to "memctx.__init__()", and moves editor invocation from "makememctx()" to "memctx.__init__()", to centralize editor invocation into "memctx" object creation. This relocation is needed, because "makememctx()" requires the "store" object providing "getfile()" to create "memfilectx" object, and this prevents some code paths from using "makememctx()" instead of "memctx.__init__()". This patch also invokes "localrepository.savecommitmessage()", when "editor" is specified explicitly, to centralize saving commit message into "memctx" object creation: passing "cmdutil.commiteditor" as "editor" can achieve both suppressing editor invocation and saving into ".hg/last-message.txt" for non empty commit messages.

localrepo: add "editor" argument to "tag()" Before this patch, "localrepository.tag()" doesn't take "editor" argument, and this prevents callers from passing "editor" argument to "localrepository.commit()" invoked internally. This patch adds "editor" argument to "localrepository.tag()" (and "_tag()", too), and makes "commands.tag()" invoke it with "editor" argument. This patch also omits explicit "localrepository.savecommitmesssage()" invocation, because "localrepository.commit()" will invoke specified "editor" and save edited commit message into ".hg/last-message.txt" automatically.

qrefresh: use "editor" argument of "commit()" instead of explicit "ui.edit()" Before this patch, "hg qrefresh" and "hg qfold" invoke "ui.edit()" explicitly to get commit message edited manually. This requires explicit "localrepository.savecommitmessage()" invocation to save edited commit message into ".hg/last-message.txt", because unexpected exception raising may abort command execution before saving it in "localrepository.commit()". This patch uses "editor" argument of "localrepository.commit()" instead of explicit "ui.edit()" invocation for "hg qnew" and "hg qfold" "localrepository.commit()" will invoke "desceditor()" function newly added by this patch, and save edited commit message into ".hg/last-message.txt" automatically. This patch passes not "editor" but "desceditor" to "commit()", because "hg qnew" and "hg qfold" require editor function to return edited message (and invoke "patchheader.setmessage()" with it) if not empty, or default message otherwise. This patch also avoids "not q.applied" check at "hg qrefresh --edit", because it is also checked in "queue.refresh()", and it is not needed to get commit message from patch header before "queue.refresh()".

qrefresh: relocate message/patch-header handling to delay message determination Before this patch, commit message for refreshed MQ changeset is determined, and written into refreshed patch file before "localrepository.commit()" invocation. This makes refactoring to use "editor" argument of "commit()" instead of explicit "ui.edit()" invocation in succeeding patch difficult. This patch relocates message/patch-header handling to delay message determination.

qnew: use "editor" argument of "commit()" instead of explicit "ui.edit()" Before this patch, "hg qnew" invokes "ui.edit()" explicitly to get commit message edited manually. This requires explicit "localrepository.savecommitmessage()" invocation to save edited commit message into ".hg/last-message.txt", because unexpected exception raising may abort command execution before saving it in "localrepository.commit()". This patch uses "editor" argument of "localrepository.commit()" instead of explicit "ui.edit()" invocation for "hg qnew". "localrepository.commit()" will invoke "desceditor()" function newly added by this patch, and save edited commit message into ".hg/last-message.txt" automatically. This patch passes not "editor" but "desceditor" to "commit()", because "hg qnew" requires editor function to return edited message if not empty, or default message otherwise. This patch applies "rstrip()" on "defaultmsg" at comparison between "nctx.description()" and "defaultmsg", because the former should be stripped by "changelog.stripdesc()" and the latter may have tail white spaces inherited from "patchfn".

histedit: use "editor" argument of "commit()" instead of explicit "ui.edit()" Before this patch, "message" action of "hg histedit" uses "ui.edit()" explicitly to get commit message edited manually. This requires explicit "localrepository.savecommitmessage()" invocation to save edited commit message into ".hg/last-message.txt", because unexpected exception raising may abort command execution before saving it in "localrepository.commit()". This patch uses "editor" argument of "localrepository.commit()" instead of explicit "ui.edit()" invocation for "message" action of "hg histedit" "localrepository.commit()" will invoke "editor()" function newly added in this patch, and save edited commit message into ".hg/last-message.txt" automatically.

test-pyflakes: detect undefined name error It should be able to catch the following mistakes at 2606e7f227f6: mercurial/exchange.py:590: undefined name 'UnknownPartError' mercurial/match.py:346: undefined name 'pat' mercurial/win32.py:365: undefined name '_ERROR_NO_MORE_FILES' tests/killdaemons.py:46: undefined name 'check'

run-tests: initialize global variables to suppress pyflakes warning