[PATCH 2 of 2] cmdutil: make commit message shown in text editor customizable by template

FUJIWARA Katsunori foozy at lares.dti.ne.jp
Mon Jul 14 11:38:13 CDT 2014


At Tue, 15 Jul 2014 01:31:19 +0900,
FUJIWARA Katsunori wrote:
> 
> # HG changeset patch
> # User FUJIWARA Katsunori <foozy at lares.dti.ne.jp>
> # Date 1405353550 -32400
> #      Tue Jul 15 00:59:10 2014 +0900
> # Node ID 7392ce1e88463adeafc6416f976c9589ed9eed43
> # Parent  f5df6f7bf9a04559b31df62592244209d90e79ab
> cmdutil: make commit message shown in text editor customizable by template

For convenience, I'm also planning to post 2 more additional
series below (maybe after 3.1 release).

  1. allow selective customization for each commit actions

     for example:

       - advertise specific message "A" at commit for tag creation,
       - advertise specific message "B" at commit for tag removal, but
       - show default commit message (= no advertisement) at other
         commit actions

  2. add 'diff' template keyword to show diff at commit

     this can stop repetition of Q&A below, without decreasing
     usability for any users :-)

       Q. Mercurial should (be able to) show diff in the commit
          message shown in text editor at commit, shouldn't it ?

       A. it is not acceptable, because it may show too much
          information and decrease visibility easily


> This patch makes commit message shown in text editor customizable by
> template. For example, this can advertise:
> 
>   - sample commit messages for routine works,
>   - points to call attention before commit,
>   - message of the day, and so on
> 
> In addition to pre-defined template keywords, this patch adds commit
> log specific ones below:
> 
>   - subrepos:
>       List of strings. Updated subrepositories in the changeset.
> 
>   - currentbookmark:
>       String. The active bookmark associated with the changeset, if exists.
> 
>   - extramsg:
>       String: Extra message instead of 'Leave message empty to abort
>       commit.', if specified. This is specific for MQ commands, which
>       use default message (e.g. '[mq]: PATCHNAME') if commit message
>       is empty.
> 
> For example, the editor shows as same text as one shown before this
> patch, with the configuration below.
> 
>   [committemplate]
>   changeset = {desc}\n\n
>       HG: Enter commit message.  Lines beginning with 'HG:' are removed.
>       HG: {if(extramsg, extramsg, "Leave message empty to abort commit.")}
>       HG: --
>       HG: user: {author}\n{ifeq(p2rev, "-1", "",
>      "HG: branch merge\n")
>      }HG: branch '{branch}'\n{if(currentbookmark,
>      "HG: bookmark '{currentbookmark}'\n")  }{subrepos %
>      "HG: subrepo {subrepo}\n"              }{file_adds %
>      "HG: added {file}\n"                   }{file_mods %
>      "HG: changed {file}\n"                 }{file_dels %
>      "HG: removed {file}\n"                 }{if(files, "",
>      "HG: no files changed\n")}
> 
> This patch still uses old implementation "buildcommittext" in default
> for safety, because some problematic encodings (CP932/Shift-JIS, for
> example) use backslash (0x5c) in multibyte character sequence, even
> though it has special meaning also for template.
> 
> Customized commit log is used for commands below:
> 
>   - backout
>   - commit
>   - fetch (for merge commit)
>   - graft
>   - histedit (for 'fold', 'mess' and 'edit')
>   - import
>   - qfold, qnew, qrefresh (of mq)
>   - rebase
>   - shelve
>   - sign (of gpg)
>   - tag
>   - transplant
> 
> diff --git a/mercurial/cmdutil.py b/mercurial/cmdutil.py
> --- a/mercurial/cmdutil.py
> +++ b/mercurial/cmdutil.py
> @@ -2170,7 +2170,11 @@
>      return commitforceeditor(repo, ctx, subs)
>  
>  def commitforceeditor(repo, ctx, subs, finishdesc=None, extramsg=None):
> -    committext = buildcommittext(repo, ctx, subs, extramsg)
> +    tmpl = repo.ui.config('committemplate', 'changeset')
> +    if tmpl:
> +        committext = buildcommittemplate(repo, ctx, subs, extramsg, tmpl)
> +    else:
> +        committext = buildcommittext(repo, ctx, subs, extramsg)
>  
>      # run editor in the repository root
>      olddir = os.getcwd()
> @@ -2186,6 +2190,37 @@
>  
>      return text
>  
> +def buildcommittemplate(repo, ctx, subs, extramsg, tmpl):
> +    ui = repo.ui
> +    tmpl, mapfile = gettemplate(ui, tmpl, None)
> +
> +    try:
> +        t = changeset_templater(ui, repo, None, {}, tmpl, mapfile, False)
> +    except SyntaxError, inst:
> +        raise util.Abort(inst.args[0])
> +
> +    props = {}
> +
> +    def subrepos(**args):
> +        return templatekw.showlist('subrepo', subs, **args)
> +    props['subrepos'] = subrepos
> +
> +    def currentbookmark(**args):
> +        if bookmarks.iscurrent(repo): # delay examination
> +            return repo._bookmarkcurrent
> +        else:
> +            return ''
> +    props['currentbookmark'] = currentbookmark
> +
> +    if extramsg:
> +        props['extramsg'] = extramsg
> +    else:
> +        props['extramsg'] = ''
> +
> +    ui.pushbuffer()
> +    t.show(ctx, **props)
> +    return ui.popbuffer()
> +
>  def buildcommittext(repo, ctx, subs, extramsg):
>      edittext = []
>      modified, added, removed = ctx.modified(), ctx.added(), ctx.removed()
> diff --git a/tests/test-commit.t b/tests/test-commit.t
> --- a/tests/test-commit.t
> +++ b/tests/test-commit.t
> @@ -354,6 +354,50 @@
>    
>    test saving last-message.txt
>  
> +test that '[committemplate] changeset' definition and commit log
> +specific template keywords work well
> +
> +  $ cat >> .hg/hgrc <<EOF
> +  > [committemplate]
> +  > changeset = HG: this is customized commit template
> +  >     HG: 'extramsg' should be empty
> +  >     {extramsg}\n{if(currentbookmark,
> +  >    "HG: bookmark '{currentbookmark}' is activated\n",
> +  >    "HG: no bookmark is activated\n")}{subrepos %
> +  >    "HG: subrepo '{subrepo}' is changed\n"}
> +  > EOF
> +
> +  $ hg init sub2
> +  $ echo a > sub2/a
> +  $ hg -R sub2 add sub2/a
> +  $ echo 'sub2 = sub2' >> .hgsub
> +
> +  $ HGEDITOR=cat hg commit -S -q
> +  HG: this is customized commit template
> +  HG: 'extramsg' should be empty
> +  
> +  HG: bookmark 'currentbookmark' is activated
> +  HG: subrepo 'sub' is changed
> +  HG: subrepo 'sub2' is changed
> +  abort: empty commit message
> +  [255]
> +
> +  $ hg bookmark --inactive currentbookmark
> +  $ hg forget .hgsub
> +  $ HGEDITOR=cat hg commit -q
> +  HG: this is customized commit template
> +  HG: 'extramsg' should be empty
> +  
> +  HG: no bookmark is activated
> +  abort: empty commit message
> +  [255]
> +
> +  $ cat >> .hg/hgrc <<EOF
> +  > # disable customizing for subsequent tests
> +  > [committemplate]
> +  > changeset =
> +  > EOF
> +
>    $ cd ..
>  
>  
> diff --git a/tests/test-mq-qrefresh-replace-log-message.t b/tests/test-mq-qrefresh-replace-log-message.t
> --- a/tests/test-mq-qrefresh-replace-log-message.t
> +++ b/tests/test-mq-qrefresh-replace-log-message.t
> @@ -26,10 +26,28 @@
>    First commit message
>  
>  Testing changing message with -m
> -(this tests also that '--edit' can be used with '--message')
> +(this tests also that '--edit' can be used with '--message', and
> +that '[committemplate] changeset' definition and commit log specific
> +template keyword 'extramsg' work well)
> +
> +  $ cat >> .hg/hgrc <<EOF
> +  > [committemplate]
> +  > changeset = HG: this is customized commit template
> +  >     {desc}\n\n
> +  >     HG: Enter commit message.  Lines beginning with 'HG:' are removed.
> +  >     HG: {extramsg}
> +  >     HG: --
> +  >     HG: user: {author}
> +  >     HG: branch '{branch}'\n{file_adds %
> +  >    "HG: added {file}\n"     }{file_mods %
> +  >    "HG: changed {file}\n"   }{file_dels %
> +  >    "HG: removed {file}\n"   }{if(files, "",
> +  >    "HG: no files changed\n")}
> +  > EOF
>  
>    $ echo bbbb > file
>    $ HGEDITOR=cat hg qrefresh -m "Second commit message" -e
> +  HG: this is customized commit template
>    Second commit message
>    
>    
> @@ -40,6 +58,12 @@
>    HG: branch 'default'
>    HG: added file
>  
> +  $ cat >> .hg/hgrc <<EOF
> +  > # disable customizing for subsequent tests
> +  > [committemplate]
> +  > changeset =
> +  > EOF
> +
>  Should display 'Second commit message'
>  
>    $ hg log -l1 --template "{desc}\n"
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> 

----------------------------------------------------------------------
[FUJIWARA Katsunori]                             foozy at lares.dti.ne.jp


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