The selection is somewhat arbitrary. In the case of the Zsh completion
file, it will not conflict with the builtin Zsh completions: they
are in a file named `_mercurial', not `_hg'.
Right now we always call "hg help $cmd" to get the canonical name of $cmd
(i.e. to go from "co" to "update").
This patch optimistically assumes that $cmd is already the canonical form
and tries to generate completions for it. If that fails, it falls back
to canonicalizing $cmd and trying again.
This means that:
- if a command or alias is explicitly handled by the
_hg_command_specific function, things get somewhat faster
- as long as the canonical $cmd is handled by _hg_command_specific, all
its aliases and abbreviations are also handled.
add a new command debugcomplete, it lists all the possible
completion for the specified command.
make the bash_completion script uses it instead of the awk code
TK Soh noticed that the awk that ships with Solaris doesn't allow you
to define new functions. According to
http://www.shelldorado.com/articles/awkcompat.html
it looks like it also doesn't have some other stuff that we were using,
like deletion of an array element and gsub.
Rewrite the parsing of hg --debug help to work around that. This
version doesn't filter aliases that are simple abbreviations for debug
commands (not a big problem, since there are none right now).
- use awk to parse the output of hg help.
- print one completion candidate per line
- print the debug commands after regular commands
(this eases the shell side of the parsing)
- don't print aliases that are simple abbreviations
(e.g. up/update, id/identify)
- Use "hg status -n" option instead of cut command.
- Sort status flags accoring to "hg status --help"
- Show deleted files instead of "hg remove"d for "hg remove"
The current bash completion script is quite painful in conjuntion with
deep directory trees because it adds a space after each successful
directory completion. Eg. "hg clone /ho<tab>" is completed to "hg clone
/home " when what you really want is "hg clone /home/" (assuming the
complete path to the repository looks like /home/foo/hg...).
That's because the 'complete' command does not know about the type of
completion it receives from the _hg shell function. When only a single
completion is returned, it assumes completion is complete and tells
readline to add a trailing space. This behaviour is usually wanted, but
not in the case of directory completion.
I've attached a patch that circumvents this problem by only returning
successful completions for directories that contain a .hg subdirectory.
If no repositories are found, no completions are returned either, and
bash falls back to ordinary (filename) completion. I find this behaviour
a lot less annoying than the current one.
Alternative: Use option nospace for the 'complete' command and let _hg
itself take care of adding a trailing space where appropriate. That's a
far more intrusive change, though.
