view tests/test-merge-types.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

adding a
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
created new head
  searching for copies back to rev 1
resolving manifests
 overwrite None partial False
 ancestor c334dc3be0da local 521a1e40188f+ remote 3574f3e69b1c
 conflicting flags for a
(n)one, e(x)ec or sym(l)ink? n
 a: update permissions -> e
updating: a 1/1 files (100.00%)
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
% symlink is local parent, executable is other
a has no flags (default for conflicts)
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  searching for copies back to rev 1
resolving manifests
 overwrite None partial False
 ancestor c334dc3be0da local 3574f3e69b1c+ remote 521a1e40188f
 conflicting flags for a
(n)one, e(x)ec or sym(l)ink? n
 a: remote is newer -> g
updating: a 1/1 files (100.00%)
getting a
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
% symlink is other parent, executable is local
a has no flags (default for conflicts)