templates: add filter to reverse list
The filter supports only lists because for lists, it’s straightforward to
implement. Reversing text doesn’t seem very useful and is hard to implement.
Reversing the bytes would break multi-bytes encodings. Reversing the code
points would break characters consisting of multiple code points. Reversing
graphemes is non-trivial without using a library not included in the standard
library.
#require git
$ echo "[core]" >> $HOME/.gitconfig
$ echo "autocrlf = false" >> $HOME/.gitconfig
$ echo "[core]" >> $HOME/.gitconfig
$ echo "autocrlf = false" >> $HOME/.gitconfig
$ cat <<EOF >> $HGRCPATH
> [extensions]
> convert =
> [convert]
> hg.usebranchnames = True
> hg.tagsbranch = tags-update
> EOF
$ GIT_AUTHOR_NAME='test'; export GIT_AUTHOR_NAME
$ GIT_AUTHOR_EMAIL='test@example.org'; export GIT_AUTHOR_EMAIL
$ GIT_AUTHOR_DATE="2007-01-01 00:00:00 +0000"; export GIT_AUTHOR_DATE
$ GIT_COMMITTER_NAME="$GIT_AUTHOR_NAME"; export GIT_COMMITTER_NAME
$ GIT_COMMITTER_EMAIL="$GIT_AUTHOR_EMAIL"; export GIT_COMMITTER_EMAIL
$ GIT_COMMITTER_DATE="$GIT_AUTHOR_DATE"; export GIT_COMMITTER_DATE
$ count=10
$ action()
> {
> GIT_AUTHOR_DATE="2007-01-01 00:00:$count +0000"
> GIT_COMMITTER_DATE="$GIT_AUTHOR_DATE"
> git "$@" >/dev/null 2>/dev/null || echo "git command error"
> count=`expr $count + 1`
> }
$ glog()
> {
> hg log -G --template '{rev} "{desc|firstline}" files: {files}\n' "$@"
> }
$ convertrepo()
> {
> hg convert --datesort git-repo hg-repo
> }
Build a GIT repo with at least 1 tag
$ mkdir git-repo
$ cd git-repo
$ git init >/dev/null 2>&1
$ echo a > a
$ git add a
$ action commit -m "rev1"
$ action tag -m "tag1" tag1
$ cd ..
Convert without tags
$ hg convert git-repo hg-repo --config convert.skiptags=True
initializing destination hg-repo repository
scanning source...
sorting...
converting...
0 rev1
updating bookmarks
$ hg -R hg-repo tags
tip 0:d98c8ad3a4cf
$ rm -rf hg-repo
Do a first conversion
$ convertrepo
initializing destination hg-repo repository
scanning source...
sorting...
converting...
0 rev1
updating tags
updating bookmarks
Simulate upstream updates after first conversion
$ cd git-repo
$ echo b > a
$ git add a
$ action commit -m "rev2"
$ action tag -m "tag2" tag2
$ cd ..
Perform an incremental conversion
$ convertrepo
scanning source...
sorting...
converting...
0 rev2
updating tags
updating bookmarks
Print the log
$ cd hg-repo
$ glog
o 3 "update tags" files: .hgtags
|
| o 2 "rev2" files: a
| |
o | 1 "update tags" files: .hgtags
/
o 0 "rev1" files: a
$ cd ..