internals: document revlog format
It seems like a good idea to document the revlog format.
There is a lot more that could be added to this documentation.
But you have to start somewhere.
$ hg init a
$ hg clone a b
updating to branch default
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cd a
$ echo '[paths]' >> .hg/hgrc
$ echo 'dupe = ../b#tip' >> .hg/hgrc
$ echo 'expand = $SOMETHING/bar' >> .hg/hgrc
$ hg in dupe
comparing with $TESTTMP/b (glob)
no changes found
[1]
$ cd ..
$ hg -R a in dupe
comparing with $TESTTMP/b (glob)
no changes found
[1]
$ cd a
$ hg paths
dupe = $TESTTMP/b#tip (glob)
expand = $TESTTMP/a/$SOMETHING/bar (glob)
$ SOMETHING=foo hg paths
dupe = $TESTTMP/b#tip (glob)
expand = $TESTTMP/a/foo/bar (glob)
#if msys
$ SOMETHING=//foo hg paths
dupe = $TESTTMP/b#tip (glob)
expand = /foo/bar
#else
$ SOMETHING=/foo hg paths
dupe = $TESTTMP/b#tip (glob)
expand = /foo/bar
#endif
$ hg paths -q
dupe
expand
$ hg paths dupe
$TESTTMP/b#tip (glob)
$ hg paths -q dupe
$ hg paths unknown
not found!
[1]
$ hg paths -q unknown
[1]
$ cd ..
sub-options for an undeclared path are ignored
$ hg init suboptions
$ cd suboptions
$ cat > .hg/hgrc << EOF
> [paths]
> path0 = https://example.com/path0
> path1:pushurl = https://example.com/path1
> EOF
$ hg paths
path0 = https://example.com/path0
unknown sub-options aren't displayed
$ cat > .hg/hgrc << EOF
> [paths]
> path0 = https://example.com/path0
> path0:foo = https://example.com/path1
> EOF
$ hg paths
path0 = https://example.com/path0
:pushurl must be a URL
$ cat > .hg/hgrc << EOF
> [paths]
> default = /path/to/nothing
> default:pushurl = /not/a/url
> EOF
$ hg paths
(paths.default:pushurl not a URL; ignoring)
default = /path/to/nothing
#fragment is not allowed in :pushurl
$ cat > .hg/hgrc << EOF
> [paths]
> default = https://example.com/repo
> invalid = https://example.com/repo
> invalid:pushurl = https://example.com/repo#branch
> EOF
$ hg paths
("#fragment" in paths.invalid:pushurl not supported; ignoring)
default = https://example.com/repo
invalid = https://example.com/repo
invalid:pushurl = https://example.com/repo
$ cd ..
'file:' disables [paths] entries for clone destination
$ cat >> $HGRCPATH <<EOF
> [paths]
> gpath1 = http://hg.example.com
> EOF
$ hg clone a gpath1
abort: cannot create new http repository
[255]
$ hg clone a file:gpath1
updating to branch default
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cd gpath1
$ hg -q id
000000000000
$ cd ..