mq: add parent node IDs to MQ patches on qrefresh/qnew
The goal of this patch is to add the IDs of the parents of applied MQ patches
into the patch file headers whenever qnew or qrefresh are run.
This will serve as a reminder of when the patches last applied cleanly and
will let us do more intelligent things in the future, such as:
* Resolve conflicts found when qpushing to a new location by merging
instead of simply showing rejects.
* Display better diffs of versioned MQ patches because we can tell how the
patched files have changed in the meantime.
Here are the new rules this patch introduces. They are checked in this order:
* If a patch currently has old, plain-style patch headers ("From:" and
"Date:") do not change the style or add any new headers.
* If the 'mq.plain' configuration setting is true, only plain-style
headers will be used for all MQ patches.
* qnew will initialize new patches with HG-style headers and fill in the
"# Parent" header with the appropriate parent node.
* qrefresh will refresh the "# Parent" header with the current parent of
the current patch.
#!/bin/sh
echo "[extensions]" >> $HGRCPATH
echo "mq=" >> $HGRCPATH
echo "[diff]" >> $HGRCPATH
echo "nodates=true" >> $HGRCPATH
catpatch() {
cat .hg/patches/$1.patch | sed -e "s/^diff \-r [0-9a-f]* /diff -r ... /" \
-e "s/^\(# Parent \).*/\1/"
}
catlog() {
catpatch $1
hg log --template "{rev}: {desc} - {author}\n"
}
catlogd() {
catpatch $1
hg log --template "{rev}: {desc} - {author} - {date}\n"
}
drop() {
hg qpop
hg qdel $1.patch
}
runtest() {
echo ==== init
hg init a
cd a
hg qinit
echo ==== qnew -d
hg qnew -d '3 0' 1.patch
catlogd 1
echo ==== qref
echo "1" >1
hg add
hg qref
catlogd 1
echo ==== qref -d
hg qref -d '4 0'
catlogd 1
echo ==== qnew
hg qnew 2.patch
echo "2" >2
hg add
hg qref
catlog 2
echo ==== qref -d
hg qref -d '5 0'
catlog 2
drop 2
echo ==== qnew -d -m
hg qnew -d '6 0' -m "Three" 3.patch
catlogd 3
echo ==== qref
echo "3" >3
hg add
hg qref
catlogd 3
echo ==== qref -m
hg qref -m "Drei"
catlogd 3
echo ==== qref -d
hg qref -d '7 0'
catlogd 3
echo ==== qref -d -m
hg qref -d '8 0' -m "Three (again)"
catlogd 3
echo ==== qnew -m
hg qnew -m "Four" 4.patch
echo "4" >4
hg add
hg qref
catlog 4
echo ==== qref -d
hg qref -d '9 0'
catlog 4
drop 4
echo ==== qnew with HG header
hg qnew --config 'mq.plain=true' 5.patch
hg qpop
echo "# HG changeset patch" >>.hg/patches/5.patch
echo "# Date 10 0" >>.hg/patches/5.patch
hg qpush 2>&1 | grep 'Now at'
catlogd 5
echo ==== hg qref
echo "5" >5
hg add
hg qref
catlogd 5
echo ==== hg qref -d
hg qref -d '11 0'
catlogd 5
echo ==== qnew with plain header
hg qnew --config 'mq.plain=true' -d '12 0' 6.patch
hg qpop
hg qpush 2>&1 | grep 'now at'
catlog 6
echo ==== hg qref
echo "6" >6
hg add
hg qref
catlogd 6
echo ==== hg qref -d
hg qref -d '13 0'
catlogd 6
drop 6
echo ==== qnew -u
hg qnew -u jane 6.patch
echo "6" >6
hg add
hg qref
catlog 6
echo ==== qref -d
hg qref -d '12 0'
catlog 6
drop 6
echo ==== qnew -d
hg qnew -d '13 0' 7.patch
echo "7" >7
hg add
hg qref
catlog 7
echo ==== qref -u
hg qref -u john
catlogd 7
echo ==== qnew
hg qnew 8.patch
echo "8" >8
hg add
hg qref
catlog 8
echo ==== qref -u -d
hg qref -u john -d '14 0'
catlog 8
drop 8
echo ==== qnew -m
hg qnew -m "Nine" 9.patch
echo "9" >9
hg add
hg qref
catlog 9
echo ==== qref -u -d
hg qref -u john -d '15 0'
catlog 9
drop 9
echo ==== "qpop -a / qpush -a"
hg qpop -a
hg qpush -a
hg log --template "{rev}: {desc} - {author} - {date}\n"
}
echo ======= plain headers
echo "[mq]" >> $HGRCPATH
echo "plain=true" >> $HGRCPATH
mkdir sandbox
(cd sandbox ; runtest)
rm -r sandbox
echo ======= hg headers
echo "plain=false" >> $HGRCPATH
mkdir sandbox
(cd sandbox ; runtest)
rm -r sandbox