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bisect: avoid adding irrelevant revisions to bisect state...
bisect: avoid adding irrelevant revisions to bisect state When adding new revisions to the bisect state, it only makes sense to add information about revisions that are under consideration (i.e., those that are topologically between the known good and bad revisions). However, if the user passes in a revset (e.g., '!merge()' to exclude merge commits), hg will resolve the revset first and add all matching revisions to the bisect state (which in this case would likely be the majority of revisions in the repo). To avoid this, revisions should only be added to the bisect state if they are between the good and bad revisions (and therefore relevant to the bisection). -- Here are the results of some performance tests using the `mozilla-central` repo (since it is one of the largest freely-available hg repositories in the wild). These tests compare the performance of a locally-built `hg` before and after application of this series. Note that `--noupdate` is passed to avoid including update time (which should not vary across cases). Setup (run between each test): $ hg bisect --reset $ hg bisect --noupdate --bad 56c3ad4bde5c70714b784ccf15d099e0df0f5bde $ hg bisect --noupdate --good 57426696adaf08298af3027fa77486fee0633b13 Test using a revset that returns a very large number of revisions: $ time hg bisect --noupdate --skip '!merge()' > /dev/null Before: real 0m9.398s user 0m9.233s sys 0m0.120s After: real 0m1.513s user 0m1.425s sys 0m0.052s Test using a revset that is expensive to compute: $ time hg bisect --noupdate --skip 'desc("Bug")' > /dev/null Before: real 0m49.853s user 0m49.580s sys 0m0.243s After: real 0m4.120s user 0m4.036s sys 0m0.048s
Sushil khanchi - - Load All Authors

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test-diff-upgrade.t
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#require execbit
$ cat <<EOF >> $HGRCPATH
> [extensions]
> autodiff = $TESTDIR/autodiff.py
> [diff]
> nodates = 1
> EOF
$ hg init repo
$ cd repo
make a combination of new, changed and deleted file
$ echo regular > regular
$ echo rmregular > rmregular
$ "$PYTHON" -c "open('bintoregular', 'wb').write(b'\0')"
$ touch rmempty
$ echo exec > exec
$ chmod +x exec
$ echo rmexec > rmexec
$ chmod +x rmexec
$ echo setexec > setexec
$ echo unsetexec > unsetexec
$ chmod +x unsetexec
$ echo binary > binary
$ "$PYTHON" -c "open('rmbinary', 'wb').write(b'\0')"
$ hg ci -Am addfiles
adding binary
adding bintoregular
adding exec
adding regular
adding rmbinary
adding rmempty
adding rmexec
adding rmregular
adding setexec
adding unsetexec
$ echo regular >> regular
$ echo newregular >> newregular
$ rm rmempty
$ touch newempty
$ rm rmregular
$ echo exec >> exec
$ echo newexec > newexec
$ echo bintoregular > bintoregular
$ chmod +x newexec
$ rm rmexec
$ chmod +x setexec
$ chmod -x unsetexec
$ "$PYTHON" -c "open('binary', 'wb').write(b'\0\0')"
$ "$PYTHON" -c "open('newbinary', 'wb').write(b'\0')"
$ rm rmbinary
$ hg addremove -s 0
adding newbinary
adding newempty
adding newexec
adding newregular
removing rmbinary
removing rmempty
removing rmexec
removing rmregular
git=no: regular diff for all files
$ hg autodiff --git=no
diff -r a66d19b9302d binary
Binary file binary has changed
diff -r a66d19b9302d bintoregular
Binary file bintoregular has changed
diff -r a66d19b9302d exec
--- a/exec
+++ b/exec
@@ -1,1 +1,2 @@
exec
+exec
diff -r a66d19b9302d newbinary
Binary file newbinary has changed
diff -r a66d19b9302d newexec
--- /dev/null
+++ b/newexec
@@ -0,0 +1,1 @@
+newexec
diff -r a66d19b9302d newregular
--- /dev/null
+++ b/newregular
@@ -0,0 +1,1 @@
+newregular
diff -r a66d19b9302d regular
--- a/regular
+++ b/regular
@@ -1,1 +1,2 @@
regular
+regular
diff -r a66d19b9302d rmbinary
Binary file rmbinary has changed
diff -r a66d19b9302d rmexec
--- a/rmexec
+++ /dev/null
@@ -1,1 +0,0 @@
-rmexec
diff -r a66d19b9302d rmregular
--- a/rmregular
+++ /dev/null
@@ -1,1 +0,0 @@
-rmregular
git=yes: git diff for single regular file
$ hg autodiff --git=yes regular
diff --git a/regular b/regular
--- a/regular
+++ b/regular
@@ -1,1 +1,2 @@
regular
+regular
git=auto: regular diff for regular files and non-binary removals
$ hg autodiff --git=auto regular newregular rmregular rmexec
diff -r a66d19b9302d newregular
--- /dev/null
+++ b/newregular
@@ -0,0 +1,1 @@
+newregular
diff -r a66d19b9302d regular
--- a/regular
+++ b/regular
@@ -1,1 +1,2 @@
regular
+regular
diff -r a66d19b9302d rmexec
--- a/rmexec
+++ /dev/null
@@ -1,1 +0,0 @@
-rmexec
diff -r a66d19b9302d rmregular
--- a/rmregular
+++ /dev/null
@@ -1,1 +0,0 @@
-rmregular
$ for f in exec newexec setexec unsetexec binary newbinary newempty rmempty rmbinary bintoregular; do
> echo
> echo '% git=auto: git diff for' $f
> hg autodiff --git=auto $f
> done
% git=auto: git diff for exec
diff -r a66d19b9302d exec
--- a/exec
+++ b/exec
@@ -1,1 +1,2 @@
exec
+exec
% git=auto: git diff for newexec
diff --git a/newexec b/newexec
new file mode 100755
--- /dev/null
+++ b/newexec
@@ -0,0 +1,1 @@
+newexec
% git=auto: git diff for setexec
diff --git a/setexec b/setexec
old mode 100644
new mode 100755
% git=auto: git diff for unsetexec
diff --git a/unsetexec b/unsetexec
old mode 100755
new mode 100644
% git=auto: git diff for binary
diff --git a/binary b/binary
index a9128c283485202893f5af379dd9beccb6e79486..09f370e38f498a462e1ca0faa724559b6630c04f
GIT binary patch
literal 2
Jc${Nk0000200961
% git=auto: git diff for newbinary
diff --git a/newbinary b/newbinary
new file mode 100644
index 0000000000000000000000000000000000000000..f76dd238ade08917e6712764a16a22005a50573d
GIT binary patch
literal 1
Ic${MZ000310RR91
% git=auto: git diff for newempty
diff --git a/newempty b/newempty
new file mode 100644
% git=auto: git diff for rmempty
diff --git a/rmempty b/rmempty
deleted file mode 100644
% git=auto: git diff for rmbinary
diff --git a/rmbinary b/rmbinary
deleted file mode 100644
index f76dd238ade08917e6712764a16a22005a50573d..0000000000000000000000000000000000000000
GIT binary patch
literal 0
Hc$@<O00001
% git=auto: git diff for bintoregular
diff --git a/bintoregular b/bintoregular
index f76dd238ade08917e6712764a16a22005a50573d..9c42f2b6427d8bf034b7bc23986152dc01bfd3ab
GIT binary patch
literal 13
Uc$`bh%qz(+N=+}#Ni5<5043uE82|tP
git=warn: regular diff with data loss warnings
$ hg autodiff --git=warn
diff -r a66d19b9302d binary
Binary file binary has changed
diff -r a66d19b9302d bintoregular
Binary file bintoregular has changed
diff -r a66d19b9302d exec
--- a/exec
+++ b/exec
@@ -1,1 +1,2 @@
exec
+exec
diff -r a66d19b9302d newbinary
Binary file newbinary has changed
diff -r a66d19b9302d newexec
--- /dev/null
+++ b/newexec
@@ -0,0 +1,1 @@
+newexec
diff -r a66d19b9302d newregular
--- /dev/null
+++ b/newregular
@@ -0,0 +1,1 @@
+newregular
diff -r a66d19b9302d regular
--- a/regular
+++ b/regular
@@ -1,1 +1,2 @@
regular
+regular
diff -r a66d19b9302d rmbinary
Binary file rmbinary has changed
diff -r a66d19b9302d rmexec
--- a/rmexec
+++ /dev/null
@@ -1,1 +0,0 @@
-rmexec
diff -r a66d19b9302d rmregular
--- a/rmregular
+++ /dev/null
@@ -1,1 +0,0 @@
-rmregular
data lost for: binary
data lost for: bintoregular
data lost for: newbinary
data lost for: newempty
data lost for: newexec
data lost for: rmbinary
data lost for: rmempty
data lost for: setexec
data lost for: unsetexec
git=abort: fail on execute bit change
$ hg autodiff --git=abort regular setexec
abort: losing data for setexec
[255]
git=abort: succeed on regular file
$ hg autodiff --git=abort regular
diff -r a66d19b9302d regular
--- a/regular
+++ b/regular
@@ -1,1 +1,2 @@
regular
+regular
$ cd ..