view tests/test-convert-svn-startrev.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

% convert before branching point
initializing destination A-r3-hg repository
scanning source...
sorting...
converting...
3 removeb
2 changeaa
1 branch, changeaaa
0 addc,changeaaaa
o  3 addc,changeaaaa files: a c
|
o  2 branch, changeaaa files: a
|
o  1 changeaa files: a
|
o  0 removeb files: a


% convert before branching point
initializing destination A-r4-hg repository
scanning source...
sorting...
converting...
2 changeaa
1 branch, changeaaa
0 addc,changeaaaa
o  2 addc,changeaaaa files: a c
|
o  1 branch, changeaaa files: a
|
o  0 changeaa files: a


% convert at branching point
initializing destination A-r5-hg repository
scanning source...
sorting...
converting...
1 branch, changeaaa
0 addc,changeaaaa
o  1 addc,changeaaaa files: a c
|
o  0 branch, changeaaa files: a


% convert last revision only
initializing destination A-r6-hg repository
scanning source...
sorting...
converting...
0 addc,changeaaaa
o  0 addc,changeaaaa files: a c