##// END OF EJS Templates
inotify: server: new data structure to keep track of changes....
inotify: server: new data structure to keep track of changes. == Rationale for the new structure == Current structure was a dictionary tree. One directory was tracked as a dictionary: - keys: file/subdir name - values: - for a file, the status (a/r/m/...) - for a subdir, the directory representing the subdir It allowed efficient lookups, no matter of the type of the terminal leaf: for part in path.split('/'): tree = tree[part] However, there is no way to represent a directory and a file with the same name because keys are conflicting in the dictionary. Concrete example: Initial state: root dir |- foo (file) |- bar (file) # data state is: {'foo': 'n', 'bar': 'n'} Remove foo: root dir |- bar (file) # Data becomes {'foo': 'r'} until next commit. Add foo, as a directory, and foo/barbar file: root dir |- bar (file) |-> foo (dir) |- barbar (file) # New state should be represented as: {'foo': {'barbar': 'a'}, 'bar': 'n'} however, the key "foo" is already used and represents the old file. The dirstate: D foo A foo/barbar cannot be represented, hence the need for a new structure. == The new structure == 'directory' class. Represents one directory level. * Notable attributes: Two dictionaries: - 'files' Maps filename -> status for the current dir. - 'dirs' Maps subdir's name -> directory object representing the subdir * methods - walk(), formerly server.walk - lookup(), old server.lookup - dir(), old server.dir This new class allows embedding all the tree walks/lookups in its own class, instead of having everything mixed together in server. Incidently, since files and directories are not stored in the same dictionaries, we are solving the previous key conflict problem. The small drawback is that lookup operation is a bit more complex: for a path a/b/c/d/e we have to check twice the leaf, if e is a directory or a file.

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test-import
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#!/bin/sh
hg init a
mkdir a/d1
mkdir a/d1/d2
echo line 1 > a/a
echo line 1 > a/d1/d2/a
hg --cwd a ci -Ama
echo line 2 >> a/a
hg --cwd a ci -u someone -d '1 0' -m'second change'
echo % import exported patch
hg clone -r0 a b
hg --cwd a export tip > tip.patch
hg --cwd b import ../tip.patch
echo % message should be same
hg --cwd b tip | grep 'second change'
echo % committer should be same
hg --cwd b tip | grep someone
rm -r b
echo % import exported patch with external patcher
cat > dummypatch.py <<EOF
print 'patching file a'
file('a', 'wb').write('line2\n')
EOF
chmod +x dummypatch.py
hg clone -r0 a b
hg --cwd a export tip > tip.patch
hg --config ui.patch='python ../dummypatch.py' --cwd b import ../tip.patch
cat b/a
rm -r b
echo % import of plain diff should fail without message
hg clone -r0 a b
hg --cwd a diff -r0:1 > tip.patch
hg --cwd b import ../tip.patch
rm -r b
echo % import of plain diff should be ok with message
hg clone -r0 a b
hg --cwd a diff -r0:1 > tip.patch
hg --cwd b import -mpatch ../tip.patch
rm -r b
echo % import of plain diff with specific date and user
hg clone -r0 a b
hg --cwd a diff -r0:1 > tip.patch
hg --cwd b import -mpatch -d '1 0' -u 'user@nowhere.net' ../tip.patch
hg -R b tip -pv
rm -r b
echo % import of plain diff should be ok with --no-commit
hg clone -r0 a b
hg --cwd a diff -r0:1 > tip.patch
hg --cwd b import --no-commit ../tip.patch
hg --cwd b diff --nodates
rm -r b
echo % hg -R repo import
# put the clone in a subdir - having a directory named "a"
# used to hide a bug.
mkdir dir
hg clone -r0 a dir/b
hg --cwd a export tip > dir/tip.patch
cd dir
hg -R b import tip.patch
cd ..
rm -r dir
echo % import from stdin
hg clone -r0 a b
hg --cwd a export tip | hg --cwd b import -
rm -r b
echo % override commit message
hg clone -r0 a b
hg --cwd a export tip | hg --cwd b import -m 'override' -
hg --cwd b tip | grep override
rm -r b
cat > mkmsg.py <<EOF
import email.Message, sys
msg = email.Message.Message()
msg.set_payload('email commit message\n' + open('tip.patch', 'rb').read())
msg['Subject'] = 'email patch'
msg['From'] = 'email patcher'
sys.stdout.write(msg.as_string())
EOF
echo % plain diff in email, subject, message body
hg clone -r0 a b
hg --cwd a diff -r0:1 > tip.patch
python mkmsg.py > msg.patch
hg --cwd b import ../msg.patch
hg --cwd b tip | grep email
rm -r b
echo % plain diff in email, no subject, message body
hg clone -r0 a b
grep -v '^Subject:' msg.patch | hg --cwd b import -
rm -r b
echo % plain diff in email, subject, no message body
hg clone -r0 a b
grep -v '^email ' msg.patch | hg --cwd b import -
rm -r b
echo % plain diff in email, no subject, no message body, should fail
hg clone -r0 a b
egrep -v '^(Subject|email)' msg.patch | hg --cwd b import -
rm -r b
echo % hg export in email, should use patch header
hg clone -r0 a b
hg --cwd a export tip > tip.patch
python mkmsg.py | hg --cwd b import -
hg --cwd b tip | grep second
rm -r b
# subject: duplicate detection, removal of [PATCH]
# The '---' tests the gitsendmail handling without proper mail headers
cat > mkmsg2.py <<EOF
import email.Message, sys
msg = email.Message.Message()
msg.set_payload('email patch\n\nnext line\n---\n' + open('tip.patch').read())
msg['Subject'] = '[PATCH] email patch'
msg['From'] = 'email patcher'
sys.stdout.write(msg.as_string())
EOF
echo '% plain diff in email, [PATCH] subject, message body with subject'
hg clone -r0 a b
hg --cwd a diff -r0:1 > tip.patch
python mkmsg2.py | hg --cwd b import -
hg --cwd b tip --template '{desc}\n'
rm -r b
# We weren't backing up the correct dirstate file when importing many patches
# (issue963)
echo '% import patch1 patch2; rollback'
echo line 3 >> a/a
hg --cwd a ci -m'third change'
hg --cwd a export -o '../patch%R' 1 2
hg clone -qr0 a b
hg --cwd b parents --template 'parent: {rev}\n'
hg --cwd b import ../patch1 ../patch2
hg --cwd b rollback
hg --cwd b parents --template 'parent: {rev}\n'
rm -r b
# bug non regression test
# importing a patch in a subdirectory failed at the commit stage
echo line 2 >> a/d1/d2/a
hg --cwd a ci -u someoneelse -d '1 0' -m'subdir change'
echo % hg import in a subdirectory
hg clone -r0 a b
hg --cwd a export tip | sed -e 's/d1\/d2\///' > tip.patch
dir=`pwd`
cd b/d1/d2 2>&1 > /dev/null
hg import ../../../tip.patch
cd $dir
echo "% message should be 'subdir change'"
hg --cwd b tip | grep 'subdir change'
echo "% committer should be 'someoneelse'"
hg --cwd b tip | grep someoneelse
echo "% should be empty"
hg --cwd b status
# Test fuzziness (ambiguous patch location, fuzz=2)
echo % test fuzziness
hg init fuzzy
cd fuzzy
echo line1 > a
echo line0 >> a
echo line3 >> a
hg ci -Am adda
echo line1 > a
echo line2 >> a
echo line0 >> a
echo line3 >> a
hg ci -m change a
hg export tip > tip.patch
hg up -C 0
echo line1 > a
echo line0 >> a
echo line1 >> a
echo line0 >> a
hg ci -m brancha
hg import -v tip.patch
cd ..
# Test hunk touching empty files (issue906)
hg init empty
cd empty
touch a
touch b1
touch c1
echo d > d
hg ci -Am init
echo a > a
echo b > b1
hg mv b1 b2
echo c > c1
hg copy c1 c2
rm d
touch d
hg diff --git
hg ci -m empty
hg export --git tip > empty.diff
hg up -C 0
hg import empty.diff
for name in a b1 b2 c1 c2 d;
do
echo % $name file
test -f $name && cat $name
done
cd ..
# Test importing a patch ending with a binary file removal
echo % test trailing binary removal
hg init binaryremoval
cd binaryremoval
echo a > a
python -c "file('b', 'wb').write('a\x00b')"
hg ci -Am addall
hg rm a
hg rm b
hg st
hg ci -m remove
hg export --git . > remove.diff
cat remove.diff | grep git
hg up -C 0
hg import remove.diff
hg manifest
cd ..
echo % 'test update+rename with common name (issue 927)'
hg init t
cd t
touch a
hg ci -Am t
echo a > a
# Here, bfile.startswith(afile)
hg copy a a2
hg ci -m copya
hg export --git tip > copy.diff
hg up -C 0
hg import copy.diff
echo % view a
# a should contain an 'a'
cat a
echo % view a2
# and a2 should have duplicated it
cat a2
cd ..
echo % 'test -p0'
hg init p0
cd p0
echo a > a
hg ci -Am t
hg import -p0 - << EOF
foobar
--- a Sat Apr 12 22:43:58 2008 -0400
+++ a Sat Apr 12 22:44:05 2008 -0400
@@ -1,1 +1,1 @@
-a
+bb
EOF
hg status
cat a
cd ..
echo % 'test paths outside repo root'
mkdir outside
touch outside/foo
hg init inside
cd inside
hg import - <<EOF
diff --git a/a b/b
rename from ../outside/foo
rename to bar
EOF
cd ..
echo '% test import with similarity (issue295)'
hg init sim
cd sim
echo 'this is a test' > a
hg ci -Ama
cat > ../rename.diff <<EOF
diff --git a/a b/a
deleted file mode 100644
--- a/a
+++ /dev/null
@@ -1,1 +0,0 @@
-this is a test
diff --git a/b b/b
new file mode 100644
--- /dev/null
+++ b/b
@@ -0,0 +1,2 @@
+this is a test
+foo
EOF
hg import --no-commit -v -s 1 ../rename.diff
hg st -C
hg revert -a
rm b
hg import --no-commit -v -s 100 ../rename.diff
hg st -C
cd ..
echo '% add empty file from the end of patch (issue 1495)'
hg init addemptyend
cd addemptyend
touch a
hg addremove
hg ci -m "commit"
cat > a.patch <<EOF
diff --git a/a b/a
--- a/a
+++ b/a
@@ -0,0 +1,1 @@
+a
diff --git a/b b/b
new file mode 100644
EOF
hg import --no-commit a.patch
cd ..