Re: [TopGit PATCH 3/6] tg-files: list files changed by the topic branch

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Hello Bert,

On Mon, Oct 04, 2010 at 08:43:52AM +0200, Bert Wesarg wrote:
> 2010/10/4 Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>:
> > Hi Bert,
> >
> > On Sun, Oct 03, 2010 at 11:25:54PM +0200, Bert Wesarg wrote:
> >> this could also be a --name-only option to tg-patch. But I Like the
> >> similarity to 'quilt files'.
> >>
> >> Signed-off-by: Bert Wesarg <bert.wesarg@xxxxxxxxxxxxxx>
> >>
> >> ---
> >>  .gitignore                 |    2 +
> >>  README                     |    8 ++++++
> >>  contrib/tg-completion.bash |    1 +
> >>  tg-files.sh                |   52 ++++++++++++++++++++++++++++++++++++++++++++
> >>  4 files changed, 63 insertions(+), 0 deletions(-)
> >>
> >> diff --git a/.gitignore b/.gitignore
> >> index 0342e09..0dc4d0e 100644 .gitignore
> >> --- a/.gitignore
> >> +++ b/.gitignore
> >> @@ -22,6 +22,8 @@
> >>  /tg-depend.txt
> >>  /tg-export
> >>  /tg-export.txt
> >> +/tg-files
> >> +/tg-files.txt
> >>  /tg-import
> >>  /tg-import.txt
> >>  /tg-info
> >> diff --git a/README b/README
> >> index f103d92..46f564a 100644 README
> >> --- a/README
> >> +++ b/README
> >> @@ -272,6 +272,14 @@ tg depend
> >>
> >>       TODO: Subcommand for removing dependencies, obviously
> >>
> >> +tg files
> >> +~~~~~~~~
> >> +     List files changed by the current or specified topic branch.
> >> +
> >> +     Options:
> >> +       -i            list files based on index instead of branch
> >> +       -w            list files based on working tree instead of branch
> >> +
> >>  tg info
> >>  ~~~~~~~
> >>       Show a summary information about the current or specified
> >> diff --git a/contrib/tg-completion.bash b/contrib/tg-completion.bash
> >> index 0ee233c..38567d0 100755 contrib/tg-completion.bash
> >> --- a/contrib/tg-completion.bash
> >> +++ b/contrib/tg-completion.bash
> >> @@ -467,6 +467,7 @@ _tg ()
> >>       delete)      _tg_delete ;;
> >>       depend)      _tg_depend ;;
> >>       export)      _tg_export ;;
> >> +     files)       _tg_patch ;;
> >>       help)        _tg_help ;;
> >>       import)      _tg_import ;;
> >>       info)        _tg_info ;;
> >> diff --git a/tg-files.sh b/tg-files.sh
> >> new file mode 100644
> >> index 0000000..0723bf1 tg-files.sh
> >> --- /dev/null
> >> +++ b/tg-files.sh
> >> @@ -0,0 +1,52 @@
> >> +#!/bin/sh
> >> +# TopGit - A different patch queue manager
> >> +# (c) Petr Baudis <pasky@xxxxxxx>  2008
> >> +# GPLv2
> >> +
> >> +name=
> >> +
> >> +topic=
> >> +diff_opts=
> >> +diff_committed_only=yes      # will be unset for index/worktree
> >> +
> >> +
> >> +## Parse options
> >> +
> >> +while [ -n "$1" ]; do
> >> +     arg="$1"; shift
> >> +     case "$arg" in
> >> +     -i)
> >> +             topic='(i)'
> >> +             diff_opts="$diff_opts --cached";
> >> +             diff_committed_only=;;
> >> +     -w)
> >> +             topic='(w)'
> >> +             diff_committed_only=;;
> >> +     -*)
> >> +             echo "Usage: tg [...] files [-i | -w] [NAME]" >&2
> >> +             exit 1;;
> >> +     *)
> >> +             [ -z "$name" ] || die "name already specified ($name)"
> >> +             name="$arg";;
> >> +     esac
> >> +done
> >> +
> >> +
> >> +[ -n "$name"  -a  -z "$diff_committed_only" ]  &&
> >> +     die "-i/-w are mutually exclusive with NAME"
> >> +
> >> +[ -n "$name" ] || name="$(git symbolic-ref HEAD | sed 's#^refs/\(heads\|top-bases\)/##')"
> >> +base_rev="$(git rev-parse --short --verify "refs/top-bases/$name" 2>/dev/null)" ||
> >> +     die "not a TopGit-controlled branch"
> >> +
> >> +# if not index/worktree, topic is current branch
> >> +[ -z "$topic" ] && topic="$name"
> >> +
> >> +
> >> +
> >> +# Evil obnoxious hack to work around the lack of git diff --exclude
> >> +git diff --name-only $diff_opts "$base_rev" ${diff_committed_only:+"$name"} -- |
> >> +     fgrep -vx ".topdeps" |
> >> +     fgrep -vx ".topmsg" || : # fgrep likes to fail randomly?
> > Instead of using fgrep you could export the branch and call git diff
> > --name-only $diff_opts on the resulting commit?
> 
> If you mean using tg-export, than I think this is a bad idea. The
> operation will than be O(n), with n the total number of depending
> branches.
> 
> I think a pretty_tree on the base and the branch with git diff-tree
> should suffice:
> 
> git diff-tree --name-only $(pretty_tree refs/top-bases/$name)
> $(pretty_tree $name)
That's what I thought after sending the mail and shuting down my machine
:-)

Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
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