view tests/test-convert-hg-startrev @ 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 '[extensions]' >> $HGRCPATH
echo 'graphlog =' >> $HGRCPATH
echo 'convert =' >> $HGRCPATH

glog()
{
    hg -R "$1" glog --template '{rev} "{desc}" files: {files}\n'
}

hg init source
cd source

echo a > a
echo b > b
hg ci -d '0 0' -qAm '0: add a b'
echo c > c
hg ci -d '1 0' -qAm '1: add c'
hg copy a e
echo b >> b
hg ci -d '2 0' -qAm '2: copy e from a, change b'
hg up -C 0
echo a >> a
hg ci -d '3 0' -qAm '3: change a'
hg merge
hg copy b d
hg ci -d '4 0' -qAm '4: merge 2 and 3, copy d from b'
echo a >> a
hg ci -d '5 0' -qAm '5: change a'
cd ..

echo % convert from null revision
hg convert --config convert.hg.startrev=null source empty
glog empty

echo % convert from zero revision
hg convert --config convert.hg.startrev=0 source full
glog full

echo % convert from merge parent
hg convert --config convert.hg.startrev=1 source conv1
glog conv1
cd conv1
echo % check copy preservation
hg log --follow --copies e
echo % check copy removal on missing parent
hg log --follow --copies d
hg cat -r tip a b
hg -q verify
cd ..

echo % convert from merge
hg convert --config convert.hg.startrev=4 source conv4
glog conv4
cd conv4
hg up -C
hg cat -r tip a b
hg -q verify
cd ..