view tests/test-hgrc.out @ 11989:f853873fc66d

aliases: provide more flexible ways to work with shell alias arguments

This patch changes the functionality of shell aliases to add more powerful
options for working with shell alias arguments.

First: the alias name + arguments to a shell alias are set as an HG_ARGS
environment variable, delimited by spaces. This matches the behavior of hooks.

Second: any occurrences of "$@" (without quotes) are replaced with the
arguments, separated by spaces. This happens *before* the alias gets to the shell.

Third: any positive numeric variables ("$1", "$2", etc) are replaced with the
appropriate argument, indexed from 1. "$0" is replaced with the name of the
alias. Any "extra" numeric variables are replaced with an empty string.  This
happens *before* the alias gets to the shell.

These changes allow for more flexible shell aliases:

    [alias]
    echo = !echo $@
    count = !hg log -r "$@" --template='.' | wc -c | sed -e 's/ //g'
    qqueuemv = !mv "`hg root`/.hg/patches-$1" "`hg root`/.hg/patches-$2"

In action:

    $ hg echo foo
    foo

    $ hg count 'branch(default)'
    901

    $ hg count 'branch(stable) and keyword(fixes)'
    102

    $ hg qqueuemv myfeature somefeature

hg: parse error at $HGRCPATH:1: invalid
updating to branch default
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
[paths]
default = .../foo%bar
default = .../foo%bar
bundle.mainreporoot=.../foobar
paths.default=.../foo%bar
hg: parse error at $HGRCPATH:2:   x = y
foo.bar=a\nb\nc\nde\nfg
foo.baz=bif cb
hg: parse error at $HGRCPATH:1: cannot include /path/to/nowhere/no-such-file (No such file or directory)
% username expansion
John Doe
ui.username=$FAKEUSER
% customized hgrc
read config from: .../.hgrc
.../.hgrc:13: alias.log=log -g
.../.hgrc:11: defaults.identify=-n
.../.hgrc:2: ui.debug=true
.../.hgrc:3: ui.fallbackencoding=ASCII
.../.hgrc:4: ui.quiet=true
.../.hgrc:5: ui.slash=true
.../.hgrc:6: ui.traceback=true
.../.hgrc:7: ui.verbose=true
.../.hgrc:8: ui.style=~/.hgstyle
.../.hgrc:9: ui.logtemplate={node}
% plain hgrc
read config from: .../.hgrc
none: ui.traceback=True
none: ui.verbose=False
none: ui.debug=True
none: ui.quiet=False