branchcache: skip entries that are topological heads in the on disk file
In the majority of cases, topological heads are also branch heads. We have
efficient way to get the topological heads and efficient way to retrieve
their branch information. So there is little value in putting them in the branch
cache file explicitly. On the contrary, writing them explicitly tend to create
very large cache file that are inefficient to read and update.
So the branch cache v3 format is no longer including them. This changeset focus
on the format aspect and have no focus on the performance aspect. We will cover
that later.
# Test the plumbing of mq.git option
# Automatic upgrade itself is tested elsewhere.
$ cat <<EOF >> $HGRCPATH
> [extensions]
> mq =
> [diff]
> nodates = 1
> EOF
$ hg init repo-auto
$ cd repo-auto
git=auto: regular patch creation:
$ echo a > a
$ hg add a
$ hg qnew -d '0 0' -f adda
$ cat .hg/patches/adda
# HG changeset patch
# Date 0 0
# Parent 0000000000000000000000000000000000000000
diff -r 000000000000 -r ef8dafc9fa4c a
--- /dev/null
+++ b/a
@@ -0,0 +1,1 @@
+a
git=auto: git patch creation with copy:
$ hg cp a b
$ hg qnew -d '0 0' -f copy
$ cat .hg/patches/copy
# HG changeset patch
# Date 0 0
# Parent ef8dafc9fa4caff80f6e243eb0171bcd60c455b4
diff --git a/a b/b
copy from a
copy to b
git=auto: git patch when using --git:
$ echo regular > regular
$ hg add regular
$ hg qnew -d '0 0' --git -f git
$ cat .hg/patches/git
# HG changeset patch
# Date 0 0
# Parent 99586d5f048c399e20f81cee41fbb3809c0e735d
diff --git a/regular b/regular
new file mode 100644
--- /dev/null
+++ b/regular
@@ -0,0 +1,1 @@
+regular
git=auto: regular patch after qrefresh without --git:
$ hg qrefresh -d '0 0'
$ cat .hg/patches/git
# HG changeset patch
# Date 0 0
# Parent 99586d5f048c399e20f81cee41fbb3809c0e735d
diff -r 99586d5f048c regular
--- /dev/null
+++ b/regular
@@ -0,0 +1,1 @@
+regular
$ cd ..
$ hg init repo-keep
$ cd repo-keep
$ echo '[mq]' > .hg/hgrc
$ echo 'git = KEEP' >> .hg/hgrc
git=keep: git patch with --git:
$ echo a > a
$ hg add a
$ hg qnew -d '0 0' -f --git git
$ cat .hg/patches/git
# HG changeset patch
# Date 0 0
# Parent 0000000000000000000000000000000000000000
diff --git a/a b/a
new file mode 100644
--- /dev/null
+++ b/a
@@ -0,0 +1,1 @@
+a
git=keep: git patch after qrefresh without --git:
$ echo a >> a
$ hg qrefresh -d '0 0'
$ cat .hg/patches/git
# HG changeset patch
# Date 0 0
# Parent 0000000000000000000000000000000000000000
diff --git a/a b/a
new file mode 100644
--- /dev/null
+++ b/a
@@ -0,0 +1,2 @@
+a
+a
$ cd ..
$ hg init repo-yes
$ cd repo-yes
$ echo '[mq]' > .hg/hgrc
$ echo 'git = yes' >> .hg/hgrc
git=yes: git patch:
$ echo a > a
$ hg add a
$ hg qnew -d '0 0' -f git
$ cat .hg/patches/git
# HG changeset patch
# Date 0 0
# Parent 0000000000000000000000000000000000000000
diff --git a/a b/a
new file mode 100644
--- /dev/null
+++ b/a
@@ -0,0 +1,1 @@
+a
git=yes: git patch after qrefresh:
$ echo a >> a
$ hg qrefresh -d '0 0'
$ cat .hg/patches/git
# HG changeset patch
# Date 0 0
# Parent 0000000000000000000000000000000000000000
diff --git a/a b/a
new file mode 100644
--- /dev/null
+++ b/a
@@ -0,0 +1,2 @@
+a
+a
$ cd ..
$ hg init repo-no
$ cd repo-no
$ echo '[diff]' > .hg/hgrc
$ echo 'git = True' >> .hg/hgrc
$ echo '[mq]' > .hg/hgrc
$ echo 'git = False' >> .hg/hgrc
git=no: regular patch with copy:
$ echo a > a
$ hg add a
$ hg qnew -d '0 0' -f adda
$ hg cp a b
$ hg qnew -d '0 0' -f regular
$ cat .hg/patches/regular
# HG changeset patch
# Date 0 0
# Parent ef8dafc9fa4caff80f6e243eb0171bcd60c455b4
diff -r ef8dafc9fa4c -r a70404f79ba3 b
--- /dev/null
+++ b/b
@@ -0,0 +1,1 @@
+a
git=no: regular patch after qrefresh with copy:
$ hg cp a c
$ hg qrefresh -d '0 0'
$ cat .hg/patches/regular
# HG changeset patch
# Date 0 0
# Parent ef8dafc9fa4caff80f6e243eb0171bcd60c455b4
diff -r ef8dafc9fa4c b
--- /dev/null
+++ b/b
@@ -0,0 +1,1 @@
+a
diff -r ef8dafc9fa4c c
--- /dev/null
+++ b/c
@@ -0,0 +1,1 @@
+a
Test how [diff] configuration influence and cause invalid or lossy patches:
$ cat <<EOF >> .hg/hgrc
> [mq]
> git = AUTO
> [diff]
> nobinary = True
> noprefix = True
> showfunc = True
> ignorews = True
> ignorewsamount = True
> ignoreblanklines = True
> unified = 1
> EOF
$ echo ' a' > a
$ hg qnew prepare -d '0 0'
$ echo ' a' > a
$ printf '\0' > b
$ echo >> c
$ hg qnew diff -d '0 0'
$ cat .hg/patches/prepare
# HG changeset patch
# Date 0 0
# Parent cf0bfe72686a47d8d7d7b4529a3adb8b0b449a9f
diff -r cf0bfe72686a -r fb9c4422b0f3 a
--- a/a
+++ b/a
@@ -1,1 +1,1 @@
-a
+ a
$ cat .hg/patches/diff
# HG changeset patch
# Date 0 0
# Parent fb9c4422b0f37dd576522dd9a3f99b825c177efe
diff --git a/a b/a
--- a/a
+++ b/a
@@ -1,1 +1,1 @@
- a
+ a
diff --git a/b b/b
index 78981922613b2afb6025042ff6bd878ac1994e85..f76dd238ade08917e6712764a16a22005a50573d
GIT binary patch
literal 1
Ic${MZ000310RR91
diff --git a/c b/c
--- a/c
+++ b/c
@@ -1,1 +1,2 @@
a
+
$ cd ..