commands: config option to control bundle compression level
Currently, bundle compression uses the default compression level
for the active compression engine. The default compression level
is tuned as a compromise between speed and size.
Some scenarios may call for a different compression level. For
example, with clone bundles, bundles are generated once and used
several times. Since the cost to generate is paid infrequently,
server operators may wish to trade extra CPU time for better
compression ratios.
This patch introduces an experimental and undocumented config
option to control the bundle compression level. As the inline
comment says, this approach is a bit hacky. I'd prefer for
the compression level to be encoded in the bundle spec. e.g.
"zstd-v2;complevel=15." However, given that the 4.1 freeze is
imminent, I'm not comfortable implementing this user-facing
change without much time to test and consider the implications.
So, we're going with the quick and dirty solution for now.
Having this option in the 4.1 release will enable Mozilla to
easily produce and test zlib and zstd bundles with non-default
compression levels in production. This will help drive future
development of the feature and zstd integration with Mercurial.
$ cat <<EOF >> $HGRCPATH
> [extensions]
> mq =
> [diff]
> nodates = true
> EOF
$ 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"
> }
======= plain headers
$ echo "[mq]" >> $HGRCPATH
$ echo "plain=true" >> $HGRCPATH
$ mkdir sandbox
$ (cd sandbox ; runtest)
==== init
==== qnew -d
Date: 3 0
0: [mq]: 1.patch - test - 3.00
==== qref
adding 1
Date: 3 0
diff -r ... 1
--- /dev/null
+++ b/1
@@ -0,0 +1,1 @@
+1
0: [mq]: 1.patch - test - 3.00
==== qref -d
Date: 4 0
diff -r ... 1
--- /dev/null
+++ b/1
@@ -0,0 +1,1 @@
+1
0: [mq]: 1.patch - test - 4.00
==== qnew
adding 2
diff -r ... 2
--- /dev/null
+++ b/2
@@ -0,0 +1,1 @@
+2
1: [mq]: 2.patch - test
0: [mq]: 1.patch - test
==== qref -d
Date: 5 0
diff -r ... 2
--- /dev/null
+++ b/2
@@ -0,0 +1,1 @@
+2
1: [mq]: 2.patch - test
0: [mq]: 1.patch - test
popping 2.patch
now at: 1.patch
==== qnew -d -m
Date: 6 0
Three
1: Three - test - 6.00
0: [mq]: 1.patch - test - 4.00
==== qref
adding 3
Date: 6 0
Three
diff -r ... 3
--- /dev/null
+++ b/3
@@ -0,0 +1,1 @@
+3
1: Three - test - 6.00
0: [mq]: 1.patch - test - 4.00
==== qref -m
Date: 6 0
Drei
diff -r ... 3
--- /dev/null
+++ b/3
@@ -0,0 +1,1 @@
+3
1: Drei - test - 6.00
0: [mq]: 1.patch - test - 4.00
==== qref -d
Date: 7 0
Drei
diff -r ... 3
--- /dev/null
+++ b/3
@@ -0,0 +1,1 @@
+3
1: Drei - test - 7.00
0: [mq]: 1.patch - test - 4.00
==== qref -d -m
Date: 8 0
Three (again)
diff -r ... 3
--- /dev/null
+++ b/3
@@ -0,0 +1,1 @@
+3
1: Three (again) - test - 8.00
0: [mq]: 1.patch - test - 4.00
==== qnew -m
adding 4
Four
diff -r ... 4
--- /dev/null
+++ b/4
@@ -0,0 +1,1 @@
+4
2: Four - test
1: Three (again) - test
0: [mq]: 1.patch - test
==== qref -d
Date: 9 0
Four
diff -r ... 4
--- /dev/null
+++ b/4
@@ -0,0 +1,1 @@
+4
2: Four - test
1: Three (again) - test
0: [mq]: 1.patch - test
popping 4.patch
now at: 3.patch
==== qnew with HG header
popping 5.patch
now at: 3.patch
# HG changeset patch
# Date 10 0
2: imported patch 5.patch - test - 10.00
1: Three (again) - test - 8.00
0: [mq]: 1.patch - test - 4.00
==== hg qref
adding 5
# HG changeset patch
# Date 10 0
# Parent
diff -r ... 5
--- /dev/null
+++ b/5
@@ -0,0 +1,1 @@
+5
2: [mq]: 5.patch - test - 10.00
1: Three (again) - test - 8.00
0: [mq]: 1.patch - test - 4.00
==== hg qref -d
# HG changeset patch
# Date 11 0
# Parent
diff -r ... 5
--- /dev/null
+++ b/5
@@ -0,0 +1,1 @@
+5
2: [mq]: 5.patch - test - 11.00
1: Three (again) - test - 8.00
0: [mq]: 1.patch - test - 4.00
==== qnew with plain header
popping 6.patch
now at: 5.patch
now at: 6.patch
Date: 12 0
3: imported patch 6.patch - test
2: [mq]: 5.patch - test
1: Three (again) - test
0: [mq]: 1.patch - test
==== hg qref
adding 6
Date: 12 0
diff -r ... 6
--- /dev/null
+++ b/6
@@ -0,0 +1,1 @@
+6
3: [mq]: 6.patch - test - 12.00
2: [mq]: 5.patch - test - 11.00
1: Three (again) - test - 8.00
0: [mq]: 1.patch - test - 4.00
==== hg qref -d
Date: 13 0
diff -r ... 6
--- /dev/null
+++ b/6
@@ -0,0 +1,1 @@
+6
3: [mq]: 6.patch - test - 13.00
2: [mq]: 5.patch - test - 11.00
1: Three (again) - test - 8.00
0: [mq]: 1.patch - test - 4.00
popping 6.patch
now at: 5.patch
==== qnew -u
adding 6
From: jane
diff -r ... 6
--- /dev/null
+++ b/6
@@ -0,0 +1,1 @@
+6
3: [mq]: 6.patch - jane
2: [mq]: 5.patch - test
1: Three (again) - test
0: [mq]: 1.patch - test
==== qref -d
From: jane
Date: 12 0
diff -r ... 6
--- /dev/null
+++ b/6
@@ -0,0 +1,1 @@
+6
3: [mq]: 6.patch - jane
2: [mq]: 5.patch - test
1: Three (again) - test
0: [mq]: 1.patch - test
popping 6.patch
now at: 5.patch
==== qnew -d
adding 7
Date: 13 0
diff -r ... 7
--- /dev/null
+++ b/7
@@ -0,0 +1,1 @@
+7
3: [mq]: 7.patch - test
2: [mq]: 5.patch - test
1: Three (again) - test
0: [mq]: 1.patch - test
==== qref -u
From: john
Date: 13 0
diff -r ... 7
--- /dev/null
+++ b/7
@@ -0,0 +1,1 @@
+7
3: [mq]: 7.patch - john - 13.00
2: [mq]: 5.patch - test - 11.00
1: Three (again) - test - 8.00
0: [mq]: 1.patch - test - 4.00
==== qnew
adding 8
diff -r ... 8
--- /dev/null
+++ b/8
@@ -0,0 +1,1 @@
+8
4: [mq]: 8.patch - test
3: [mq]: 7.patch - john
2: [mq]: 5.patch - test
1: Three (again) - test
0: [mq]: 1.patch - test
==== qref -u -d
From: john
Date: 14 0
diff -r ... 8
--- /dev/null
+++ b/8
@@ -0,0 +1,1 @@
+8
4: [mq]: 8.patch - john
3: [mq]: 7.patch - john
2: [mq]: 5.patch - test
1: Three (again) - test
0: [mq]: 1.patch - test
popping 8.patch
now at: 7.patch
==== qnew -m
adding 9
Nine
diff -r ... 9
--- /dev/null
+++ b/9
@@ -0,0 +1,1 @@
+9
4: Nine - test
3: [mq]: 7.patch - john
2: [mq]: 5.patch - test
1: Three (again) - test
0: [mq]: 1.patch - test
==== qref -u -d
From: john
Date: 15 0
Nine
diff -r ... 9
--- /dev/null
+++ b/9
@@ -0,0 +1,1 @@
+9
4: Nine - john
3: [mq]: 7.patch - john
2: [mq]: 5.patch - test
1: Three (again) - test
0: [mq]: 1.patch - test
popping 9.patch
now at: 7.patch
==== qpop -a / qpush -a
popping 7.patch
popping 5.patch
popping 3.patch
popping 1.patch
patch queue now empty
applying 1.patch
applying 3.patch
applying 5.patch
applying 7.patch
now at: 7.patch
3: imported patch 7.patch - john - 13.00
2: imported patch 5.patch - test - 11.00
1: Three (again) - test - 8.00
0: imported patch 1.patch - test - 4.00
$ rm -r sandbox
======= hg headers
$ echo "plain=false" >> $HGRCPATH
$ mkdir sandbox
$ (cd sandbox ; runtest)
==== init
==== qnew -d
# HG changeset patch
# Date 3 0
# Parent
0: [mq]: 1.patch - test - 3.00
==== qref
adding 1
# HG changeset patch
# Date 3 0
# Parent
diff -r ... 1
--- /dev/null
+++ b/1
@@ -0,0 +1,1 @@
+1
0: [mq]: 1.patch - test - 3.00
==== qref -d
# HG changeset patch
# Date 4 0
# Parent
diff -r ... 1
--- /dev/null
+++ b/1
@@ -0,0 +1,1 @@
+1
0: [mq]: 1.patch - test - 4.00
==== qnew
adding 2
# HG changeset patch
# Parent
diff -r ... 2
--- /dev/null
+++ b/2
@@ -0,0 +1,1 @@
+2
1: [mq]: 2.patch - test
0: [mq]: 1.patch - test
==== qref -d
# HG changeset patch
# Date 5 0
# Parent
diff -r ... 2
--- /dev/null
+++ b/2
@@ -0,0 +1,1 @@
+2
1: [mq]: 2.patch - test
0: [mq]: 1.patch - test
popping 2.patch
now at: 1.patch
==== qnew -d -m
# HG changeset patch
# Date 6 0
# Parent
Three
1: Three - test - 6.00
0: [mq]: 1.patch - test - 4.00
==== qref
adding 3
# HG changeset patch
# Date 6 0
# Parent
Three
diff -r ... 3
--- /dev/null
+++ b/3
@@ -0,0 +1,1 @@
+3
1: Three - test - 6.00
0: [mq]: 1.patch - test - 4.00
==== qref -m
# HG changeset patch
# Date 6 0
# Parent
Drei
diff -r ... 3
--- /dev/null
+++ b/3
@@ -0,0 +1,1 @@
+3
1: Drei - test - 6.00
0: [mq]: 1.patch - test - 4.00
==== qref -d
# HG changeset patch
# Date 7 0
# Parent
Drei
diff -r ... 3
--- /dev/null
+++ b/3
@@ -0,0 +1,1 @@
+3
1: Drei - test - 7.00
0: [mq]: 1.patch - test - 4.00
==== qref -d -m
# HG changeset patch
# Date 8 0
# Parent
Three (again)
diff -r ... 3
--- /dev/null
+++ b/3
@@ -0,0 +1,1 @@
+3
1: Three (again) - test - 8.00
0: [mq]: 1.patch - test - 4.00
==== qnew -m
adding 4
# HG changeset patch
# Parent
Four
diff -r ... 4
--- /dev/null
+++ b/4
@@ -0,0 +1,1 @@
+4
2: Four - test
1: Three (again) - test
0: [mq]: 1.patch - test
==== qref -d
# HG changeset patch
# Date 9 0
# Parent
Four
diff -r ... 4
--- /dev/null
+++ b/4
@@ -0,0 +1,1 @@
+4
2: Four - test
1: Three (again) - test
0: [mq]: 1.patch - test
popping 4.patch
now at: 3.patch
==== qnew with HG header
popping 5.patch
now at: 3.patch
# HG changeset patch
# Date 10 0
2: imported patch 5.patch - test - 10.00
1: Three (again) - test - 8.00
0: [mq]: 1.patch - test - 4.00
==== hg qref
adding 5
# HG changeset patch
# Date 10 0
# Parent
diff -r ... 5
--- /dev/null
+++ b/5
@@ -0,0 +1,1 @@
+5
2: [mq]: 5.patch - test - 10.00
1: Three (again) - test - 8.00
0: [mq]: 1.patch - test - 4.00
==== hg qref -d
# HG changeset patch
# Date 11 0
# Parent
diff -r ... 5
--- /dev/null
+++ b/5
@@ -0,0 +1,1 @@
+5
2: [mq]: 5.patch - test - 11.00
1: Three (again) - test - 8.00
0: [mq]: 1.patch - test - 4.00
==== qnew with plain header
popping 6.patch
now at: 5.patch
now at: 6.patch
Date: 12 0
3: imported patch 6.patch - test
2: [mq]: 5.patch - test
1: Three (again) - test
0: [mq]: 1.patch - test
==== hg qref
adding 6
Date: 12 0
diff -r ... 6
--- /dev/null
+++ b/6
@@ -0,0 +1,1 @@
+6
3: [mq]: 6.patch - test - 12.00
2: [mq]: 5.patch - test - 11.00
1: Three (again) - test - 8.00
0: [mq]: 1.patch - test - 4.00
==== hg qref -d
Date: 13 0
diff -r ... 6
--- /dev/null
+++ b/6
@@ -0,0 +1,1 @@
+6
3: [mq]: 6.patch - test - 13.00
2: [mq]: 5.patch - test - 11.00
1: Three (again) - test - 8.00
0: [mq]: 1.patch - test - 4.00
popping 6.patch
now at: 5.patch
==== qnew -u
adding 6
# HG changeset patch
# User jane
# Parent
diff -r ... 6
--- /dev/null
+++ b/6
@@ -0,0 +1,1 @@
+6
3: [mq]: 6.patch - jane
2: [mq]: 5.patch - test
1: Three (again) - test
0: [mq]: 1.patch - test
==== qref -d
# HG changeset patch
# User jane
# Date 12 0
# Parent
diff -r ... 6
--- /dev/null
+++ b/6
@@ -0,0 +1,1 @@
+6
3: [mq]: 6.patch - jane
2: [mq]: 5.patch - test
1: Three (again) - test
0: [mq]: 1.patch - test
popping 6.patch
now at: 5.patch
==== qnew -d
adding 7
# HG changeset patch
# Date 13 0
# Parent
diff -r ... 7
--- /dev/null
+++ b/7
@@ -0,0 +1,1 @@
+7
3: [mq]: 7.patch - test
2: [mq]: 5.patch - test
1: Three (again) - test
0: [mq]: 1.patch - test
==== qref -u
# HG changeset patch
# User john
# Date 13 0
# Parent
diff -r ... 7
--- /dev/null
+++ b/7
@@ -0,0 +1,1 @@
+7
3: [mq]: 7.patch - john - 13.00
2: [mq]: 5.patch - test - 11.00
1: Three (again) - test - 8.00
0: [mq]: 1.patch - test - 4.00
==== qnew
adding 8
# HG changeset patch
# Parent
diff -r ... 8
--- /dev/null
+++ b/8
@@ -0,0 +1,1 @@
+8
4: [mq]: 8.patch - test
3: [mq]: 7.patch - john
2: [mq]: 5.patch - test
1: Three (again) - test
0: [mq]: 1.patch - test
==== qref -u -d
# HG changeset patch
# User john
# Date 14 0
# Parent
diff -r ... 8
--- /dev/null
+++ b/8
@@ -0,0 +1,1 @@
+8
4: [mq]: 8.patch - john
3: [mq]: 7.patch - john
2: [mq]: 5.patch - test
1: Three (again) - test
0: [mq]: 1.patch - test
popping 8.patch
now at: 7.patch
==== qnew -m
adding 9
# HG changeset patch
# Parent
Nine
diff -r ... 9
--- /dev/null
+++ b/9
@@ -0,0 +1,1 @@
+9
4: Nine - test
3: [mq]: 7.patch - john
2: [mq]: 5.patch - test
1: Three (again) - test
0: [mq]: 1.patch - test
==== qref -u -d
# HG changeset patch
# User john
# Date 15 0
# Parent
Nine
diff -r ... 9
--- /dev/null
+++ b/9
@@ -0,0 +1,1 @@
+9
4: Nine - john
3: [mq]: 7.patch - john
2: [mq]: 5.patch - test
1: Three (again) - test
0: [mq]: 1.patch - test
popping 9.patch
now at: 7.patch
==== qpop -a / qpush -a
popping 7.patch
popping 5.patch
popping 3.patch
popping 1.patch
patch queue now empty
applying 1.patch
applying 3.patch
applying 5.patch
applying 7.patch
now at: 7.patch
3: imported patch 7.patch - john - 13.00
2: imported patch 5.patch - test - 11.00
1: Three (again) - test - 8.00
0: imported patch 1.patch - test - 4.00
$ rm -r sandbox