view tests/test-clone-update-order @ 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

#!/bin/sh

echo
echo % prepare repo a
mkdir a
cd a
hg init
echo foo > bar
hg commit -Am default
hg up -r null
hg branch mine
echo hello > world
hg commit -Am hello
hg up -r null
hg branch other
echo good > bye
hg commit -Am other
hg up -r mine

echo % test -U -u
hg clone -U -u . .#other ../b -r 0 -r 1 -r 2 -b other

echo % test -U
hg clone -U .#other ../b -r 0 -r 1 -r 2 -b other
rm -rf ../b

echo % test -u .
hg clone -u . .#other ../b -r 0 -r 1 -r 2 -b other
rm -rf ../b

echo % test -u 0
hg clone -u 0 .#other ../b -r 0 -r 1 -r 2 -b other
rm -rf ../b

echo % test -u 1
hg clone -u 1 .#other ../b -r 0 -r 1 -r 2 -b other
rm -rf ../b

echo % test -u 2
hg clone -u 2 .#other ../b -r 0 -r 1 -r 2 -b other
rm -rf ../b

echo % test -r 0
hg clone -u 2 .#other ../b -r 0 -r 1 -r 2 -b other
rm -rf ../b

echo % test -r mine ... mine is ignored
hg clone -u 2 .#other ../b -r mine -r 0 -r 1 -r 2 -b other
rm -rf ../b

echo % test -b default
hg clone .#other ../b -b default -b mine
rm -rf ../b

echo % test #other
hg clone .#other ../b
rm -rf ../b

echo % test tip
hg clone -U . ../c -r 1 -r 2 > /dev/null
hg clone ../c ../b
rm -rf ../b ../c
cd ..

rm -rf a
exit 0