revset: explicitely tag alias arguments for expansion
The current revset alias expansion code works like:
1- Get the replacement tree
2- Substitute the variables in the replacement tree
3- Expand the replacement tree
It makes it easy to substitute alias arguments because the placeholders
are always replaced before the updated replacement tree is expanded
again. Unfortunately, to fix other alias expansion issues, we need to
reorder the sequence and delay the argument substitution. To solve this,
a new "virtual" construct called _aliasarg() is introduced and injected
when parsing the aliases definitions. Only _aliasarg() will be
substituted in the argument expansion phase instead of all regular
matching string. We also check user inputs do not contain unexpected
_aliasarg() instances to avoid argument injections.
$ hg init repo
$ cd repo
$ touch foo
$ hg add foo
$ for i in 0 1 2 3 4 5 6 7 8 9 10 11; do
> echo "foo-$i" >> foo
> hg ci -m "foo-$i"
> done
$ for out in "%nof%N" "%%%H" "%b-%R" "%h" "%r" "%m"; do
> echo
> echo "# foo-$out.patch"
> hg export -v -o "foo-$out.patch" 2:tip
> done
# foo-%nof%N.patch
exporting patches:
foo-01of10.patch
foo-02of10.patch
foo-03of10.patch
foo-04of10.patch
foo-05of10.patch
foo-06of10.patch
foo-07of10.patch
foo-08of10.patch
foo-09of10.patch
foo-10of10.patch
# foo-%%%H.patch
exporting patches:
foo-%617188a1c80f869a7b66c85134da88a6fb145f67.patch
foo-%dd41a5ff707a5225204105611ba49cc5c229d55f.patch
foo-%f95a5410f8664b6e1490a4af654e4b7d41a7b321.patch
foo-%4346bcfde53b4d9042489078bcfa9c3e28201db2.patch
foo-%afda8c3a009cc99449a05ad8aa4655648c4ecd34.patch
foo-%35284ce2b6b99c9d2ac66268fe99e68e1974e1aa.patch
foo-%9688c41894e6931305fa7165a37f6568050b4e9b.patch
foo-%747d3c68f8ec44bb35816bfcd59aeb50b9654c2f.patch
foo-%5f17a83f5fbd9414006a5e563eab4c8a00729efd.patch
foo-%f3acbafac161ec68f1598af38f794f28847ca5d3.patch
# foo-%b-%R.patch
exporting patches:
foo-repo-2.patch
foo-repo-3.patch
foo-repo-4.patch
foo-repo-5.patch
foo-repo-6.patch
foo-repo-7.patch
foo-repo-8.patch
foo-repo-9.patch
foo-repo-10.patch
foo-repo-11.patch
# foo-%h.patch
exporting patches:
foo-617188a1c80f.patch
foo-dd41a5ff707a.patch
foo-f95a5410f866.patch
foo-4346bcfde53b.patch
foo-afda8c3a009c.patch
foo-35284ce2b6b9.patch
foo-9688c41894e6.patch
foo-747d3c68f8ec.patch
foo-5f17a83f5fbd.patch
foo-f3acbafac161.patch
# foo-%r.patch
exporting patches:
foo-02.patch
foo-03.patch
foo-04.patch
foo-05.patch
foo-06.patch
foo-07.patch
foo-08.patch
foo-09.patch
foo-10.patch
foo-11.patch
# foo-%m.patch
exporting patches:
foo-foo_2.patch
foo-foo_3.patch
foo-foo_4.patch
foo-foo_5.patch
foo-foo_6.patch
foo-foo_7.patch
foo-foo_8.patch
foo-foo_9.patch
foo-foo_10.patch
foo-foo_11.patch
Exporting 4 changesets to a file:
$ hg export -o export_internal 1 2 3 4
$ grep HG export_internal | wc -l
\s*4 (re)
Exporting 4 changesets to a file:
$ hg export 1 2 3 4 | grep HG | wc -l
\s*4 (re)
Exporting revision -2 to a file:
$ hg export -- -2
# HG changeset patch
# User test
# Date 0 0
# Node ID 5f17a83f5fbd9414006a5e563eab4c8a00729efd
# Parent 747d3c68f8ec44bb35816bfcd59aeb50b9654c2f
foo-10
diff -r 747d3c68f8ec -r 5f17a83f5fbd foo
--- a/foo Thu Jan 01 00:00:00 1970 +0000
+++ b/foo Thu Jan 01 00:00:00 1970 +0000
@@ -8,3 +8,4 @@
foo-7
foo-8
foo-9
+foo-10
Checking if only alphanumeric characters are used in the file name (%m option):
$ echo "line" >> foo
$ hg commit -m " !\"#$%&(,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_\`abcdefghijklmnopqrstuvwxyz{|}~"
$ hg export -v -o %m.patch tip
exporting patch:
____________0123456789_______ABCDEFGHIJKLMNOPQRSTUVWXYZ______abcdefghijklmnopqrstuvwxyz____.patch
Catch exporting unknown revisions (especially empty revsets, see issue3353)
$ hg export
abort: export requires at least one changeset
[255]
$ hg export ""
hg: parse error: empty query
[255]
$ hg export 999
abort: unknown revision '999'!
[255]
$ hg export "not all()"
abort: export requires at least one changeset
[255]