view tests/test-custom-filters @ 11109:a2bc2f2d77a9

subrepo: normalize path part of URLs so that pulling subrepos from webdir works

For a "all projects at root" repo layout eg:
/main
/sub

Where subrepos are used such that a clone of main has this layout:
./main/
./main/.hgsub
./main/sub/

And the .hgsub content is:
sub = ../sub

This allows a pull from a hgweb where main and sub are exposed
at the root (or same directory level)

The current code doesn't normalize the path component of a pull
url. this results in trying to pull from
http://server.com/hg/main/../sub

Current hgweb implementation doesn't reduce the path component
so this results in a 404 error though everything is setup logically.

This patch adresses this 404 error on the puller side
normalizing the URLs used for pulling sub repos. For this
example, the URL would be reduced to http://server.com/hg/sub

Fix + test

#!/bin/sh

hg init

cat > .hg/hgrc <<EOF
[extensions]
prefixfilter = prefix.py
[encode]
*.txt = stripprefix: Copyright 2046, The Masters
[decode]
*.txt = insertprefix: Copyright 2046, The Masters
EOF

cat > prefix.py <<EOF
from mercurial import util
def stripprefix(s, cmd, filename, **kwargs):
    header = '%s\n' % cmd
    if s[:len(header)] != header:
        raise util.Abort('missing header "%s" in %s' % (cmd, filename))
    return s[len(header):]
def insertprefix(s, cmd):
    return '%s\n%s' % (cmd, s)
def reposetup(ui, repo):
    repo.adddatafilter('stripprefix:', stripprefix)
    repo.adddatafilter('insertprefix:', insertprefix)
EOF

cat > .hgignore <<EOF
.hgignore
prefix.py
prefix.pyc
EOF

cat > stuff.txt <<EOF
Copyright 2046, The Masters
Some stuff to ponder very carefully.
EOF
hg add stuff.txt
hg ci -m stuff

echo '% Repository data:'
hg cat stuff.txt

echo '% Fresh checkout:'
rm stuff.txt
hg up -C
cat stuff.txt
echo >> stuff.txt <<EOF
Very very carefully.
EOF
hg stat

cat > morestuff.txt <<EOF
Unauthorized material subject to destruction.
EOF

echo '% Problem encoding:'
hg add morestuff.txt
hg ci -m morestuff
hg stat