Mercurial > hg
view tests/test-histedit-commute.t @ 30446:b324b4e431e5
posix: give checkexec a fast path; keep the check files and test read only
Before, Mercurial would create a new temporary file every time, stat it, change
its exec mode, stat it again, and delete it. Most of this dance was done to
handle the rare and not-so-essential case of VFAT mounts on unix. The cost of
that was paid by the much more common and important case of using normal file
systems.
Instead, try to create and preserve .hg/cache/checkisexec and
.hg/cache/checknoexec with and without exec flag set. If the files exist and
have correct exec flags set, we can conclude that that file system supports the
exec flag. Best case, the whole exec check can thus be done with two stat
calls. Worst case, we delete the wrong files and check as usual. That will be
because temporary loss of exec bit or on file systems without support for the
exec bit. In that case we check as we did before, with the additional overhead
of one extra stat call.
It is possible that this different test algorithm in some cases on odd file
systems will give different behaviour. Again, I think it will be rare and
special cases and I think it is worth the risk.
test-clone.t happens to show the situation where checkisexec is left behind
from the old style check, while checknoexec only will be created next time a
exec check will be performed.
author | Mads Kiilerich <madski@unity3d.com> |
---|---|
date | Wed, 14 Jan 2015 01:15:26 +0100 |
parents | 5490b04e6132 |
children | 37ab9e20991c |
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$ . "$TESTDIR/histedit-helpers.sh" $ cat >> $HGRCPATH <<EOF > [extensions] > histedit= > EOF $ initrepo () > { > hg init r > cd r > for x in a b c d e f ; do > echo $x > $x > hg add $x > hg ci -m $x > done > } $ initrepo log before edit $ hg log --graph @ changeset: 5:652413bf663e | tag: tip | user: test | date: Thu Jan 01 00:00:00 1970 +0000 | summary: f | o changeset: 4:e860deea161a | user: test | date: Thu Jan 01 00:00:00 1970 +0000 | summary: e | o changeset: 3:055a42cdd887 | user: test | date: Thu Jan 01 00:00:00 1970 +0000 | summary: d | o changeset: 2:177f92b77385 | user: test | date: Thu Jan 01 00:00:00 1970 +0000 | summary: c | o changeset: 1:d2ae7f538514 | user: test | date: Thu Jan 01 00:00:00 1970 +0000 | summary: b | o changeset: 0:cb9a9f314b8b user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: a show the edit commands offered $ HGEDITOR=cat hg histedit 177f92b77385 pick 177f92b77385 2 c pick 055a42cdd887 3 d pick e860deea161a 4 e pick 652413bf663e 5 f # Edit history between 177f92b77385 and 652413bf663e # # Commits are listed from least to most recent # # You can reorder changesets by reordering the lines # # Commands: # # e, edit = use commit, but stop for amending # m, mess = edit commit message without changing commit content # p, pick = use commit # d, drop = remove commit from history # f, fold = use commit, but combine it with the one above # r, roll = like fold, but discard this commit's description # edit the history (use a hacky editor to check histedit-last-edit.txt backup) $ EDITED="$TESTTMP/editedhistory" $ cat > $EDITED <<EOF > edit 177f92b77385 c > pick e860deea161a e > pick 652413bf663e f > pick 055a42cdd887 d > EOF $ HGEDITOR="cat \"$EDITED\" > " hg histedit 177f92b77385 2>&1 | fixbundle 0 files updated, 0 files merged, 4 files removed, 0 files unresolved Editing (177f92b77385), you may commit or record as needed now. (hg histedit --continue to resume) rules should end up in .hg/histedit-last-edit.txt: $ cat .hg/histedit-last-edit.txt edit 177f92b77385 c pick e860deea161a e pick 652413bf663e f pick 055a42cdd887 d $ hg histedit --abort 4 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cat > $EDITED <<EOF > pick 177f92b77385 c > pick e860deea161a e > pick 652413bf663e f > pick 055a42cdd887 d > EOF $ HGEDITOR="cat \"$EDITED\" > " hg histedit 177f92b77385 2>&1 | fixbundle log after edit $ hg log --graph @ changeset: 5:07114f51870f | tag: tip | user: test | date: Thu Jan 01 00:00:00 1970 +0000 | summary: d | o changeset: 4:8ade9693061e | user: test | date: Thu Jan 01 00:00:00 1970 +0000 | summary: f | o changeset: 3:d8249471110a | user: test | date: Thu Jan 01 00:00:00 1970 +0000 | summary: e | o changeset: 2:177f92b77385 | user: test | date: Thu Jan 01 00:00:00 1970 +0000 | summary: c | o changeset: 1:d2ae7f538514 | user: test | date: Thu Jan 01 00:00:00 1970 +0000 | summary: b | o changeset: 0:cb9a9f314b8b user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: a put things back $ hg histedit 177f92b77385 --commands - 2>&1 << EOF | fixbundle > pick 177f92b77385 c > pick 07114f51870f d > pick d8249471110a e > pick 8ade9693061e f > EOF $ hg log --graph @ changeset: 5:7eca9b5b1148 | tag: tip | user: test | date: Thu Jan 01 00:00:00 1970 +0000 | summary: f | o changeset: 4:915da888f2de | user: test | date: Thu Jan 01 00:00:00 1970 +0000 | summary: e | o changeset: 3:10517e47bbbb | user: test | date: Thu Jan 01 00:00:00 1970 +0000 | summary: d | o changeset: 2:177f92b77385 | user: test | date: Thu Jan 01 00:00:00 1970 +0000 | summary: c | o changeset: 1:d2ae7f538514 | user: test | date: Thu Jan 01 00:00:00 1970 +0000 | summary: b | o changeset: 0:cb9a9f314b8b user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: a slightly different this time $ hg histedit 177f92b77385 --commands - << EOF 2>&1 | fixbundle > pick 10517e47bbbb d > pick 7eca9b5b1148 f > pick 915da888f2de e > pick 177f92b77385 c > EOF $ hg log --graph @ changeset: 5:38b92f448761 | tag: tip | user: test | date: Thu Jan 01 00:00:00 1970 +0000 | summary: c | o changeset: 4:de71b079d9ce | user: test | date: Thu Jan 01 00:00:00 1970 +0000 | summary: e | o changeset: 3:be9ae3a309c6 | user: test | date: Thu Jan 01 00:00:00 1970 +0000 | summary: f | o changeset: 2:799205341b6b | user: test | date: Thu Jan 01 00:00:00 1970 +0000 | summary: d | o changeset: 1:d2ae7f538514 | user: test | date: Thu Jan 01 00:00:00 1970 +0000 | summary: b | o changeset: 0:cb9a9f314b8b user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: a keep prevents stripping dead revs $ hg histedit 799205341b6b --keep --commands - 2>&1 << EOF | fixbundle > pick 799205341b6b d > pick be9ae3a309c6 f > pick 38b92f448761 c > pick de71b079d9ce e > EOF $ hg log --graph @ changeset: 7:803ef1c6fcfd | tag: tip | user: test | date: Thu Jan 01 00:00:00 1970 +0000 | summary: e | o changeset: 6:ece0b8d93dda | parent: 3:be9ae3a309c6 | user: test | date: Thu Jan 01 00:00:00 1970 +0000 | summary: c | | o changeset: 5:38b92f448761 | | user: test | | date: Thu Jan 01 00:00:00 1970 +0000 | | summary: c | | | o changeset: 4:de71b079d9ce |/ user: test | date: Thu Jan 01 00:00:00 1970 +0000 | summary: e | o changeset: 3:be9ae3a309c6 | user: test | date: Thu Jan 01 00:00:00 1970 +0000 | summary: f | o changeset: 2:799205341b6b | user: test | date: Thu Jan 01 00:00:00 1970 +0000 | summary: d | o changeset: 1:d2ae7f538514 | user: test | date: Thu Jan 01 00:00:00 1970 +0000 | summary: b | o changeset: 0:cb9a9f314b8b user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: a try with --rev $ hg histedit --commands - --rev -2 2>&1 <<EOF | fixbundle > pick de71b079d9ce e > pick 38b92f448761 c > EOF hg: parse error: pick "de71b079d9ce" changeset was not a candidate (only use listed changesets) $ hg log --graph @ changeset: 7:803ef1c6fcfd | tag: tip | user: test | date: Thu Jan 01 00:00:00 1970 +0000 | summary: e | o changeset: 6:ece0b8d93dda | parent: 3:be9ae3a309c6 | user: test | date: Thu Jan 01 00:00:00 1970 +0000 | summary: c | | o changeset: 5:38b92f448761 | | user: test | | date: Thu Jan 01 00:00:00 1970 +0000 | | summary: c | | | o changeset: 4:de71b079d9ce |/ user: test | date: Thu Jan 01 00:00:00 1970 +0000 | summary: e | o changeset: 3:be9ae3a309c6 | user: test | date: Thu Jan 01 00:00:00 1970 +0000 | summary: f | o changeset: 2:799205341b6b | user: test | date: Thu Jan 01 00:00:00 1970 +0000 | summary: d | o changeset: 1:d2ae7f538514 | user: test | date: Thu Jan 01 00:00:00 1970 +0000 | summary: b | o changeset: 0:cb9a9f314b8b user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: a Verify that revsetalias entries work with histedit: $ cat >> $HGRCPATH <<EOF > [revsetalias] > grandparent(ARG) = p1(p1(ARG)) > EOF $ echo extra commit >> c $ hg ci -m 'extra commit to c' $ HGEDITOR=cat hg histedit 'grandparent(.)' pick ece0b8d93dda 6 c pick 803ef1c6fcfd 7 e pick 9c863c565126 8 extra commit to c # Edit history between ece0b8d93dda and 9c863c565126 # # Commits are listed from least to most recent # # You can reorder changesets by reordering the lines # # Commands: # # e, edit = use commit, but stop for amending # m, mess = edit commit message without changing commit content # p, pick = use commit # d, drop = remove commit from history # f, fold = use commit, but combine it with the one above # r, roll = like fold, but discard this commit's description # should also work if a commit message is missing $ BUNDLE="$TESTDIR/missing-comment.hg" $ hg init missing $ cd missing $ hg unbundle $BUNDLE adding changesets adding manifests adding file changes added 3 changesets with 3 changes to 1 files (run 'hg update' to get a working copy) $ hg co tip 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg log --graph @ changeset: 2:bd22688093b3 | tag: tip | user: Robert Altman <robert.altman@telventDTN.com> | date: Mon Nov 28 16:40:04 2011 +0000 | summary: Update file. | o changeset: 1:3b3e956f9171 | user: Robert Altman <robert.altman@telventDTN.com> | date: Mon Nov 28 16:37:57 2011 +0000 | o changeset: 0:141947992243 user: Robert Altman <robert.altman@telventDTN.com> date: Mon Nov 28 16:35:28 2011 +0000 summary: Checked in text file $ hg histedit 0 $ cd .. $ cd .. Test to make sure folding renames doesn't cause bogus conflicts (issue4251): $ hg init issue4251 $ cd issue4251 $ mkdir initial-dir $ echo foo > initial-dir/initial-file $ hg add initial-dir/initial-file $ hg commit -m "initial commit" Move the file to a new directory, and in the same commit, change its content: $ mkdir another-dir $ hg mv initial-dir/initial-file another-dir/ $ echo changed > another-dir/initial-file $ hg commit -m "moved and changed" Rename the file: $ hg mv another-dir/initial-file another-dir/renamed-file $ hg commit -m "renamed" Now, let's try to fold the second commit into the first: $ cat > editor.sh <<EOF > #!/bin/sh > cat > \$1 <<ENDOF > pick b0f4233702ca 0 initial commit > fold 5e8704a8f2d2 1 moved and changed > pick 40e7299e8fa7 2 renamed > ENDOF > EOF $ HGEDITOR="sh ./editor.sh" hg histedit 0 saved backup bundle to $TESTTMP/issue4251/.hg/strip-backup/*-backup.hg (glob) saved backup bundle to $TESTTMP/issue4251/.hg/strip-backup/*-backup.hg (glob) $ hg --config diff.git=yes export 0 # HG changeset patch # User test # Date 0 0 # Thu Jan 01 00:00:00 1970 +0000 # Node ID fffadc26f8f85623ce60b028a3f1ccc3730f8530 # Parent 0000000000000000000000000000000000000000 pick b0f4233702ca 0 initial commit fold 5e8704a8f2d2 1 moved and changed pick 40e7299e8fa7 2 renamed diff --git a/another-dir/initial-file b/another-dir/initial-file new file mode 100644 --- /dev/null +++ b/another-dir/initial-file @@ -0,0 +1,1 @@ +changed $ hg --config diff.git=yes export 1 # HG changeset patch # User test # Date 0 0 # Thu Jan 01 00:00:00 1970 +0000 # Node ID 9b730d82b00af8a2766facebfa47cc124405a118 # Parent fffadc26f8f85623ce60b028a3f1ccc3730f8530 renamed diff --git a/another-dir/initial-file b/another-dir/renamed-file rename from another-dir/initial-file rename to another-dir/renamed-file $ cd ..