Mercurial > evolve
view tests/test-tutorial.t @ 4099:84b203a60788 stable
depthcache: ignore permission and OS errors when writing
This cache is related to the obshashrange one and we update it lazily by
default.
This can be an issue when pulling locally from a read only repository that was
not configured for a more aggressive cache warming. The raised permission error
was uncaught and could crash the whole process. Errors during Cache update
should not block Mercurial operations.
| author | Pierre-Yves David <pierre-yves.david@octobus.net> |
|---|---|
| date | Thu, 13 Sep 2018 17:08:05 +0200 |
| parents | ecbf61d90807 |
| children | f9a850018daa ef22eef37ecc |
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Initial setup ------------- This Mercurial configuration example is used for testing. .. Various setup $ cat >> $HGRCPATH << EOF > [ui] > # This is change the default output of log for clear tutorial > logtemplate ="{node|short} ({phase}): {desc}\n" > [diff] > # use "git" diff format, clearer and smarter format > git = 1 > [alias] > # "-d '0 0'" means that the new commit will be at January 1st 1970. > # This is used for stable hash during test > # (this tutorial is automatically tested.) > amend = amend -d '0 0' > EOF $ hg init local $ cat >> local/.hg/hgrc << EOF > [paths] > remote = ../remote > other = ../other > [ui] > user = Babar the King > EOF $ hg init remote $ cat >> remote/.hg/hgrc << EOF > [paths] > local = ../local > [ui] > user = Celestine the Queen > EOF $ hg init other $ cat >> other/.hg/hgrc << EOF > [ui] > user = Princess Flore > EOF This tutorial uses the following configuration for Mercurial: A compact log template with phase data: $ hg showconfig ui | grep log ui.logtemplate="{node|short} ({phase}): {desc}\n" Improved git format diff: $ hg showconfig diff diff.git=1 And of course, we enable the experimental extensions for mutable history: $ cat >> $HGRCPATH <<EOF > [extensions] > evolve = $TESTDIR/../hgext3rd/evolve/ > # enabling rebase is also needed for now > rebase = > EOF #if docgraph-ext $ . "$TESTDIR/testlib/docgraph_setup.sh" #rest-ignore #endif ----------------------- Single Developer Usage ----------------------- This tutorial shows how to use evolution to rewrite history locally. Fixing mistake with `hg amend` -------------------------------- We are versioning a shopping list $ cd local $ cat >> shopping << EOF > Spam > Whizzo butter > Albatross > Rat (rather a lot) > Jugged fish > Blancmange > Salmon mousse > EOF $ hg commit -A -m "Monthy Python Shopping list" adding shopping Its first version is shared with the outside. $ hg push remote pushing to $TESTTMP/remote (glob) searching for changes adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files Later I add additional item to my list $ cat >> shopping << EOF > Egg > Suggar > Vinegar > Oil > EOF $ hg commit -m "adding condiment" $ cat >> shopping << EOF > Bananos > Pear > Apple > EOF $ hg commit -m "adding fruit" This history is very linear $ hg log -G @ d85de4546133 (draft): adding fruit | o 4d5dc8187023 (draft): adding condiment | o 7e82d3f3c2cb (public): Monthy Python Shopping list #if docgraph-ext $ hg docgraph -r "all()" --sphinx-directive --rankdir LR #rest-ignore .. graphviz:: strict digraph "Mercurial graph" { graph [rankdir=LR, splines=polyline ]; node [label="\N"]; 0 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=0, pin=true, pos="1,0!", shape=circle, style=filled, width=1]; 1 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=1, pin=true, pos="1,1!", shape=pentagon, style=filled, width=1]; 0 -> 1 [arrowhead=none, penwidth=2.0]; 2 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=2, pin=true, pos="1,2!", shape=pentagon, style=filled, width=1]; 1 -> 2 [arrowhead=none, penwidth=2.0]; } #endif But a typo was made in Babanas! $ hg export tip # HG changeset patch # User test # Date 0 0 # Thu Jan 01 00:00:00 1970 +0000 # Node ID d85de4546133030c82d257bbcdd9b1b416d0c31c # Parent 4d5dc81870237d492284826e21840b2ca00e26d1 adding fruit diff --git a/shopping b/shopping --- a/shopping +++ b/shopping @@ -9,3 +9,6 @@ Suggar Vinegar Oil +Bananos +Pear +Apple The faulty changeset is in the "draft" phase because it has not been exchanged with the outside. The first one has been exchanged and is "public" (immutable). $ hg log -G @ d85de4546133 (draft): adding fruit | o 4d5dc8187023 (draft): adding condiment | o 7e82d3f3c2cb (public): Monthy Python Shopping list #if docgraph-ext $ hg docgraph -r "all()" --sphinx-directive --rankdir LR #rest-ignore .. graphviz:: strict digraph "Mercurial graph" { graph [rankdir=LR, splines=polyline ]; node [label="\N"]; 0 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=0, pin=true, pos="1,0!", shape=circle, style=filled, width=1]; 1 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=1, pin=true, pos="1,1!", shape=pentagon, style=filled, width=1]; 0 -> 1 [arrowhead=none, penwidth=2.0]; 2 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=2, pin=true, pos="1,2!", shape=pentagon, style=filled, width=1]; 1 -> 2 [arrowhead=none, penwidth=2.0]; } #endif Hopefully. I can use `hg commit --amend` to rewrite my faulty changeset! $ sed -i'' -e s/Bananos/Banana/ shopping $ hg diff diff --git a/shopping b/shopping --- a/shopping +++ b/shopping @@ -9,6 +9,6 @@ Suggar Vinegar Oil -Bananos +Banana Pear Apple $ hg commit --amend A new changeset with the right diff replace the wrong one. $ hg log -G @ 9d0363b81950 (draft): adding fruit | o 4d5dc8187023 (draft): adding condiment | o 7e82d3f3c2cb (public): Monthy Python Shopping list #if docgraph-ext $ hg docgraph -r "all()" --sphinx-directive --rankdir LR #rest-ignore .. graphviz:: strict digraph "Mercurial graph" { graph [rankdir=LR, splines=polyline ]; node [label="\N"]; 0 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=0, pin=true, pos="1,0!", shape=circle, style=filled, width=1]; 1 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=1, pin=true, pos="1,1!", shape=pentagon, style=filled, width=1]; 0 -> 1 [arrowhead=none, penwidth=2.0]; 3 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=3, pin=true, pos="1,3!", shape=pentagon, style=filled, width=1]; 1 -> 3 [arrowhead=none, penwidth=2.0]; } #endif $ hg export tip # HG changeset patch # User test # Date 0 0 # Thu Jan 01 00:00:00 1970 +0000 # Node ID 9d0363b81950646bc6ad1ec5de8b8197ea586541 # Parent 4d5dc81870237d492284826e21840b2ca00e26d1 adding fruit diff --git a/shopping b/shopping --- a/shopping +++ b/shopping @@ -9,3 +9,6 @@ Suggar Vinegar Oil +Banana +Pear +Apple Getting rid of branchy history ---------------------------------- While I was working on my list. Someone made a change remotely. $ cd ../remote $ hg up -q $ sed -i'' -e 's/Spam/Spam Spam Spam/' shopping $ hg ci -m 'SPAM' $ cd ../local I'll get this remote changeset when pulling $ hg pull remote pulling from $TESTTMP/remote (glob) searching for changes adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files (+1 heads) new changesets 9ca060c80d74 (run 'hg heads' to see heads, 'hg merge' to merge) I now have a new head. Note that this remote head is immutable. $ hg log -G o 9ca060c80d74 (public): SPAM | | @ 9d0363b81950 (draft): adding fruit | | | o 4d5dc8187023 (draft): adding condiment |/ o 7e82d3f3c2cb (public): Monthy Python Shopping list #if docgraph-ext $ hg docgraph -r "all()" --sphinx-directive --rankdir LR #rest-ignore .. graphviz:: strict digraph "Mercurial graph" { graph [rankdir=LR, splines=polyline ]; node [label="\N"]; 0 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=0, pin=true, pos="1,0!", shape=circle, style=filled, width=1]; 1 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=1, pin=true, pos="1,1!", shape=pentagon, style=filled, width=1]; 0 -> 1 [arrowhead=none, penwidth=2.0]; 4 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=4, pin=true, pos="1,4!", shape=circle, style=filled, width=1]; 0 -> 4 [arrowhead=none, penwidth=2.0]; 3 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=3, pin=true, pos="1,3!", shape=pentagon, style=filled, width=1]; 1 -> 3 [arrowhead=none, penwidth=2.0]; } #endif Instead of merging my head with the new one. I'm going to rebase my work $ hg diff $ hg rebase --dest 9ca060c80d74 --source 4d5dc8187023 rebasing 1:4d5dc8187023 "adding condiment" merging shopping rebasing 3:9d0363b81950 "adding fruit" merging shopping My local work is now rebased on the remote one. $ hg log -G @ 41aff6a42b75 (draft): adding fruit | o dfd3a2d7691e (draft): adding condiment | o 9ca060c80d74 (public): SPAM | o 7e82d3f3c2cb (public): Monthy Python Shopping list #if docgraph-ext $ hg docgraph -r "all()" --sphinx-directive --rankdir LR #rest-ignore .. graphviz:: strict digraph "Mercurial graph" { graph [rankdir=LR, splines=polyline ]; node [label="\N"]; 0 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=0, pin=true, pos="1,0!", shape=circle, style=filled, width=1]; 4 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=4, pin=true, pos="1,4!", shape=circle, style=filled, width=1]; 0 -> 4 [arrowhead=none, penwidth=2.0]; 5 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=5, pin=true, pos="1,5!", shape=pentagon, style=filled, width=1]; 4 -> 5 [arrowhead=none, penwidth=2.0]; 6 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=6, pin=true, pos="1,6!", shape=pentagon, style=filled, width=1]; 5 -> 6 [arrowhead=none, penwidth=2.0]; } #endif Removing changesets ------------------------ I add new items to my list. $ cat >> shopping << EOF > car > bus > plane > boat > EOF $ hg ci -m 'transport' $ hg log -G @ 1125e39fbf21 (draft): transport | o 41aff6a42b75 (draft): adding fruit | o dfd3a2d7691e (draft): adding condiment | o 9ca060c80d74 (public): SPAM | o 7e82d3f3c2cb (public): Monthy Python Shopping list I have a new commit but I realize that don't want it. (Transport shop list does not fit well in my standard shopping list) $ hg prune . # "." is for working directory parent 1 files updated, 0 files merged, 0 files removed, 0 files unresolved working directory now at 41aff6a42b75 1 changesets pruned The silly changeset is gone. $ hg log -G @ 41aff6a42b75 (draft): adding fruit | o dfd3a2d7691e (draft): adding condiment | o 9ca060c80d74 (public): SPAM | o 7e82d3f3c2cb (public): Monthy Python Shopping list #if docgraph-ext $ hg docgraph -r "all()" --sphinx-directive --rankdir LR #rest-ignore .. graphviz:: strict digraph "Mercurial graph" { graph [rankdir=LR, splines=polyline ]; node [label="\N"]; 0 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=0, pin=true, pos="1,0!", shape=circle, style=filled, width=1]; 4 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=4, pin=true, pos="1,4!", shape=circle, style=filled, width=1]; 0 -> 4 [arrowhead=none, penwidth=2.0]; 5 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=5, pin=true, pos="1,5!", shape=pentagon, style=filled, width=1]; 4 -> 5 [arrowhead=none, penwidth=2.0]; 6 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=6, pin=true, pos="1,6!", shape=pentagon, style=filled, width=1]; 5 -> 6 [arrowhead=none, penwidth=2.0]; } #endif Reordering changesets ------------------------ We create two changesets. $ cat >> shopping << EOF > Shampoo > Toothbrush > ... More bathroom stuff to come > Towel > Soap > EOF $ hg ci -m 'bathroom stuff' -q # XXX remove the -q $ sed -i'' -e 's/Spam/Spam Spam Spam/g' shopping $ hg ci -m 'SPAM SPAM' $ hg log -G @ fac207dec9f5 (draft): SPAM SPAM | o 10b8aeaa8cc8 (draft): bathroom stuff | o 41aff6a42b75 (draft): adding fruit | o dfd3a2d7691e (draft): adding condiment | o 9ca060c80d74 (public): SPAM | o 7e82d3f3c2cb (public): Monthy Python Shopping list .. note:: We can't amend changeset 7e82d3f3c2cb or 9ca060c80d74 as they are immutable. I now want to push to remote all my changes except the bathroom one, which I'm not totally happy with yet. To be able to push "SPAM SPAM" I need a version of "SPAM SPAM" which is not a child of "bathroom stuff" You can use the 'grab' alias for that. .. note: grab is an alias for `hg rebase --dest . --rev <target>; hg up <there>` $ hg up 'p1(10b8aeaa8cc8)' # going on "bathroom stuff" parent 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg pick fac207dec9f5 # moving "SPAM SPAM" to the working directory parent picking 9:fac207dec9f5 "SPAM SPAM" merging shopping $ hg log -G @ 57e9caedbcb8 (draft): SPAM SPAM | | o 10b8aeaa8cc8 (draft): bathroom stuff |/ o 41aff6a42b75 (draft): adding fruit | o dfd3a2d7691e (draft): adding condiment | o 9ca060c80d74 (public): SPAM | o 7e82d3f3c2cb (public): Monthy Python Shopping list #if docgraph-ext $ hg docgraph -r "all()" --sphinx-directive --rankdir LR #rest-ignore .. graphviz:: strict digraph "Mercurial graph" { graph [rankdir=LR, splines=polyline ]; node [label="\N"]; 0 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=0, pin=true, pos="1,0!", shape=circle, style=filled, width=1]; 4 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=4, pin=true, pos="1,4!", shape=circle, style=filled, width=1]; 0 -> 4 [arrowhead=none, penwidth=2.0]; 5 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=5, pin=true, pos="1,5!", shape=pentagon, style=filled, width=1]; 4 -> 5 [arrowhead=none, penwidth=2.0]; 6 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=6, pin=true, pos="1,6!", shape=pentagon, style=filled, width=1]; 5 -> 6 [arrowhead=none, penwidth=2.0]; 8 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=8, pin=true, pos="1,8!", shape=pentagon, style=filled, width=1]; 6 -> 8 [arrowhead=none, penwidth=2.0]; 10 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=10, pin=true, pos="1,10!", shape=pentagon, style=filled, width=1]; 6 -> 10 [arrowhead=none, penwidth=2.0]; } #endif We have a new SPAM SPAM version without the bathroom stuff $ grep Spam shopping # enough spam Spam Spam Spam Spam Spam Spam Spam Spam Spam $ grep Toothbrush shopping # no Toothbrush [1] $ hg export . # HG changeset patch # User test # Date 0 0 # Thu Jan 01 00:00:00 1970 +0000 # Node ID 57e9caedbcb8575a01c128db9d1bcbd624ef2115 # Parent 41aff6a42b7578ec7ec3cb2041633f1ca43cca96 SPAM SPAM diff --git a/shopping b/shopping --- a/shopping +++ b/shopping @@ -1,4 +1,4 @@ -Spam Spam Spam +Spam Spam Spam Spam Spam Spam Spam Spam Spam Whizzo butter Albatross Rat (rather a lot) To make sure I do not push unready changeset by mistake I set the "bathroom stuff" changeset in the secret phase. $ hg phase --force --secret 10b8aeaa8cc8 we can now push our change: $ hg push remote pushing to $TESTTMP/remote (glob) searching for changes adding changesets adding manifests adding file changes added 3 changesets with 3 changes to 1 files 5 new obsolescence markers for simplicity sake we get the bathroom change in line again $ hg pick 10b8aeaa8cc8 picking 8:10b8aeaa8cc8 "bathroom stuff" merging shopping $ hg phase --draft . $ hg log -G @ 4710c0968793 (draft): bathroom stuff | o 57e9caedbcb8 (public): SPAM SPAM | o 41aff6a42b75 (public): adding fruit | o dfd3a2d7691e (public): adding condiment | o 9ca060c80d74 (public): SPAM | o 7e82d3f3c2cb (public): Monthy Python Shopping list #if docgraph-ext $ hg docgraph -r "all()" --sphinx-directive --rankdir LR #rest-ignore .. graphviz:: strict digraph "Mercurial graph" { graph [rankdir=LR, splines=polyline ]; node [label="\N"]; 0 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=0, pin=true, pos="1,0!", shape=circle, style=filled, width=1]; 4 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=4, pin=true, pos="1,4!", shape=circle, style=filled, width=1]; 0 -> 4 [arrowhead=none, penwidth=2.0]; 5 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=5, pin=true, pos="1,5!", shape=circle, style=filled, width=1]; 4 -> 5 [arrowhead=none, penwidth=2.0]; 6 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=6, pin=true, pos="1,6!", shape=circle, style=filled, width=1]; 5 -> 6 [arrowhead=none, penwidth=2.0]; 10 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=10, pin=true, pos="1,10!", shape=circle, style=filled, width=1]; 6 -> 10 [arrowhead=none, penwidth=2.0]; 11 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=11, pin=true, pos="1,11!", shape=pentagon, style=filled, width=1]; 10 -> 11 [arrowhead=none, penwidth=2.0]; } #endif Splitting change ------------------ This part is not written yet, but you can use either the `histedit` extension of the `uncommit` command to splitting a change. $ hg help uncommit hg uncommit [OPTION]... [NAME] move changes from parent revision to working directory Changes to selected files in the checked out revision appear again as uncommitted changed in the working directory. A new revision without the selected changes is created, becomes the checked out revision, and obsoletes the previous one. The --include option specifies patterns to uncommit. The --exclude option specifies patterns to keep in the commit. The --rev argument let you change the commit file to a content of another revision. It still does not change the content of your file in the working directory. Return 0 if changed files are uncommitted. options ([+] can be repeated): -a --all uncommit all changes when no arguments given -r --rev VALUE revert commit content to REV instead --revert discard working directory changes after uncommit -n --note VALUE store a note on uncommit -I --include PATTERN [+] include names matching the given patterns -X --exclude PATTERN [+] exclude names matching the given patterns -m --message TEXT use text as commit message -l --logfile FILE read commit message from file -d --date DATE record the specified date as commit date -u --user USER record the specified user as committer -D --current-date record the current date as commit date -U --current-user record the current user as committer (some details hidden, use --verbose to show complete help) The edit command of histedit can be used to split changeset: Collapsing change ------------------ The tutorial part is not written yet but can use `hg fold`: $ hg help fold hg fold [OPTION]... [-r] REV aliases: squash fold multiple revisions into a single one With --from, folds all the revisions linearly between the given revisions and the parent of the working directory. With --exact, folds only the specified revisions while ignoring the parent of the working directory. In this case, the given revisions must form a linear unbroken chain. options ([+] can be repeated): -r --rev VALUE [+] revision to fold --exact only fold specified revisions --from fold revisions linearly to working copy parent -n --note VALUE store a note on fold -m --message TEXT use text as commit message -l --logfile FILE read commit message from file -d --date DATE record the specified date as commit date -u --user USER record the specified user as committer -D --current-date record the current date as commit date -U --current-user record the current user as committer (some details hidden, use --verbose to show complete help) ----------------------- Collaboration ----------------------- Sharing mutable changesets ---------------------------- To share mutable changesets with others, just check that the repo you interact with is "not publishing". Otherwise you will get the previously observe behavior where exchanged changeset are automatically published. $ cd ../remote $ hg -R ../local/ showconfig phases [1] The localrepo does not have any specific configuration for `phases.publish`. It is ``true`` by default. $ hg pull local pulling from $TESTTMP/local (glob) searching for changes adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files 1 new obsolescence markers new changesets 4710c0968793 (run 'hg update' to get a working copy) $ hg log -G o 4710c0968793 (public): bathroom stuff | o 57e9caedbcb8 (public): SPAM SPAM | o 41aff6a42b75 (public): adding fruit | o dfd3a2d7691e (public): adding condiment | @ 9ca060c80d74 (public): SPAM | o 7e82d3f3c2cb (public): Monthy Python Shopping list We do not want to publish the "bathroom changeset". Let's rollback the last transaction. .. Warning: Rollback is actually a dangerous kind of internal command that is deprecated and should not be exposed to user. Please forget you read about it until someone fix this tutorial. $ hg rollback repository tip rolled back to revision 4 (undo pull) $ hg log -G o 57e9caedbcb8 (public): SPAM SPAM | o 41aff6a42b75 (public): adding fruit | o dfd3a2d7691e (public): adding condiment | @ 9ca060c80d74 (public): SPAM | o 7e82d3f3c2cb (public): Monthy Python Shopping list Let's make the local repo "non publishing". $ echo '[phases]' >> ../local/.hg/hgrc $ echo 'publish=false' >> ../local/.hg/hgrc $ echo '[phases]' >> .hg/hgrc $ echo 'publish=false' >> .hg/hgrc $ hg showconfig phases phases.publish=false $ hg -R ../local/ showconfig phases phases.publish=false I can now exchange mutable changeset between "remote" and "local" repository. $ hg pull local pulling from $TESTTMP/local (glob) searching for changes adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files 1 new obsolescence markers new changesets 4710c0968793 (run 'hg update' to get a working copy) $ hg log -G o 4710c0968793 (draft): bathroom stuff | o 57e9caedbcb8 (public): SPAM SPAM | o 41aff6a42b75 (public): adding fruit | o dfd3a2d7691e (public): adding condiment | @ 9ca060c80d74 (public): SPAM | o 7e82d3f3c2cb (public): Monthy Python Shopping list Rebasing unstable change after pull ---------------------------------------------- Remotely someone add a new changeset on top of the mutable "bathroom" on. $ hg up 4710c0968793 -q $ cat >> shopping << EOF > Giraffe > Rhino > Lion > Bear > EOF $ hg ci -m 'animals' But at the same time, locally, this same "bathroom changeset" was updated. $ cd ../local $ hg up 4710c0968793 -q $ sed -i'' -e 's/... More bathroom stuff to come/Bath Robe/' shopping $ hg commit --amend $ hg log -G @ 682004e81e71 (draft): bathroom stuff | o 57e9caedbcb8 (public): SPAM SPAM | o 41aff6a42b75 (public): adding fruit | o dfd3a2d7691e (public): adding condiment | o 9ca060c80d74 (public): SPAM | o 7e82d3f3c2cb (public): Monthy Python Shopping list #if docgraph-ext $ hg docgraph -r "all()" --sphinx-directive --rankdir LR #rest-ignore .. graphviz:: strict digraph "Mercurial graph" { graph [rankdir=LR, splines=polyline ]; node [label="\N"]; 0 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=0, pin=true, pos="1,0!", shape=circle, style=filled, width=1]; 4 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=4, pin=true, pos="1,4!", shape=circle, style=filled, width=1]; 0 -> 4 [arrowhead=none, penwidth=2.0]; 5 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=5, pin=true, pos="1,5!", shape=circle, style=filled, width=1]; 4 -> 5 [arrowhead=none, penwidth=2.0]; 6 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=6, pin=true, pos="1,6!", shape=circle, style=filled, width=1]; 5 -> 6 [arrowhead=none, penwidth=2.0]; 10 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=10, pin=true, pos="1,10!", shape=circle, style=filled, width=1]; 6 -> 10 [arrowhead=none, penwidth=2.0]; 12 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=12, pin=true, pos="1,12!", shape=pentagon, style=filled, width=1]; 10 -> 12 [arrowhead=none, penwidth=2.0]; } #endif When we pull from remote again we get an unstable state! $ hg pull remote pulling from $TESTTMP/remote (glob) searching for changes adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files 1 new orphan changesets new changesets e4e4fa805d92 (run 'hg update' to get a working copy) The new changeset "animal" is based on an old changeset of "bathroom". You can see both version showing up in the log. $ hg log -G * e4e4fa805d92 (draft): animals | | @ 682004e81e71 (draft): bathroom stuff | | x | 4710c0968793 (draft): bathroom stuff |/ o 57e9caedbcb8 (public): SPAM SPAM | o 41aff6a42b75 (public): adding fruit | o dfd3a2d7691e (public): adding condiment | o 9ca060c80d74 (public): SPAM | o 7e82d3f3c2cb (public): Monthy Python Shopping list #if docgraph-ext $ hg docgraph -r "all()" --sphinx-directive --rankdir LR #rest-ignore .. graphviz:: strict digraph "Mercurial graph" { graph [rankdir=LR, splines=polyline ]; node [label="\N"]; 0 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=0, pin=true, pos="1,0!", shape=circle, style=filled, width=1]; 4 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=4, pin=true, pos="1,4!", shape=circle, style=filled, width=1]; 0 -> 4 [arrowhead=none, penwidth=2.0]; 5 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=5, pin=true, pos="1,5!", shape=circle, style=filled, width=1]; 4 -> 5 [arrowhead=none, penwidth=2.0]; 6 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=6, pin=true, pos="1,6!", shape=circle, style=filled, width=1]; 5 -> 6 [arrowhead=none, penwidth=2.0]; 10 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=10, pin=true, pos="1,10!", shape=circle, style=filled, width=1]; 6 -> 10 [arrowhead=none, penwidth=2.0]; 11 [fillcolor="#DFDFFF", fixedsize=true, group=default_alt, height=1, label=11, pin=true, pos="2,11!", shape=pentagon, style="dotted, filled", width=1]; 10 -> 11 [arrowhead=none, penwidth=2.0]; 12 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=12, pin=true, pos="1,12!", shape=pentagon, style=filled, width=1]; 10 -> 12 [arrowhead=none, penwidth=2.0]; 11 -> 12 [arrowtail=none, dir=back, minlen=0, penwidth=2.0, style=dashed]; 13 [fillcolor="#FF4F4F", fixedsize=true, group=default_alt, height=1, label=13, pin=true, pos="2,13!", shape=pentagon, style=filled, width=1]; 11 -> 13 [arrowhead=none, penwidth=2.0]; } #endif The older version 75954b8cd933 never ceased to exist in the local repo. It was just hidden and excluded from pull and push. .. note:: In hgview there is a nice dotted relation highlighting a44c85f957d3 as a new version of 75954b8cd933. this is not yet ported to ``hg log -G``. There is now an **unstable** changeset in this history. Mercurial will refuse to share it with the outside: $ hg push other pushing to $TESTTMP/other (glob) searching for changes abort: push includes orphan changeset: e4e4fa805d92! (use 'hg evolve' to get a stable history or --force to ignore warnings) [255] To resolve this unstable state, you need to rebase bf1b0d202029 onto a44c85f957d3. The `hg evolve` command will do this for you. It has a --dry-run option to only suggest the next move. $ hg evolve --dry-run move:[13] animals atop:[12] bathroom stuff hg rebase -r e4e4fa805d92 -d 682004e81e71 Let's do it $ hg evolve move:[13] animals atop:[12] bathroom stuff merging shopping working directory is now at 2a2b36e14660 The old version of bathroom is hidden again. $ hg log -G @ 2a2b36e14660 (draft): animals | o 682004e81e71 (draft): bathroom stuff | o 57e9caedbcb8 (public): SPAM SPAM | o 41aff6a42b75 (public): adding fruit | o dfd3a2d7691e (public): adding condiment | o 9ca060c80d74 (public): SPAM | o 7e82d3f3c2cb (public): Monthy Python Shopping list #if docgraph-ext $ hg docgraph -r "all()" --sphinx-directive --rankdir LR #rest-ignore .. graphviz:: strict digraph "Mercurial graph" { graph [rankdir=LR, splines=polyline ]; node [label="\N"]; 0 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=0, pin=true, pos="1,0!", shape=circle, style=filled, width=1]; 4 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=4, pin=true, pos="1,4!", shape=circle, style=filled, width=1]; 0 -> 4 [arrowhead=none, penwidth=2.0]; 5 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=5, pin=true, pos="1,5!", shape=circle, style=filled, width=1]; 4 -> 5 [arrowhead=none, penwidth=2.0]; 6 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=6, pin=true, pos="1,6!", shape=circle, style=filled, width=1]; 5 -> 6 [arrowhead=none, penwidth=2.0]; 10 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=10, pin=true, pos="1,10!", shape=circle, style=filled, width=1]; 6 -> 10 [arrowhead=none, penwidth=2.0]; 12 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=12, pin=true, pos="1,12!", shape=pentagon, style=filled, width=1]; 10 -> 12 [arrowhead=none, penwidth=2.0]; 14 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=14, pin=true, pos="1,14!", shape=pentagon, style=filled, width=1]; 12 -> 14 [arrowhead=none, penwidth=2.0]; } #endif We can push this evolution to remote. $ hg push remote pushing to $TESTTMP/remote (glob) searching for changes adding changesets adding manifests adding file changes added 2 changesets with 2 changes to 1 files (+1 heads) 2 new obsolescence markers obsoleted 2 changesets Remote get a warning that current working directory is based on an obsolete changeset. $ cd ../remote $ hg pull local # we up again to trigger the warning. it was displayed during the push pulling from $TESTTMP/local (glob) searching for changes no changes found Now let's see where we are, and update to the successor. $ hg parents e4e4fa805d92 (draft): animals working directory parent is obsolete! (e4e4fa805d92) (use 'hg evolve' to update to its successor: 2a2b36e14660) $ hg evolve update:[8] animals 1 files updated, 0 files merged, 0 files removed, 0 files unresolved working directory is now at 2a2b36e14660 Relocating unstable change after prune ---------------------------------------------- The remote guy keeps working. $ sed -i'' -e 's/Spam/Spam Spam Spam Spam/g' shopping $ hg commit -m "SPAM SPAM SPAM" I'm pulling its work locally. $ cd ../local $ hg pull remote pulling from $TESTTMP/remote (glob) searching for changes adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files new changesets fc41faf45288 (run 'hg update' to get a working copy) $ hg log -G o fc41faf45288 (draft): SPAM SPAM SPAM | @ 2a2b36e14660 (draft): animals | o 682004e81e71 (draft): bathroom stuff | o 57e9caedbcb8 (public): SPAM SPAM | o 41aff6a42b75 (public): adding fruit | o dfd3a2d7691e (public): adding condiment | o 9ca060c80d74 (public): SPAM | o 7e82d3f3c2cb (public): Monthy Python Shopping list #if docgraph-ext $ hg docgraph -r "all()" --sphinx-directive --rankdir LR #rest-ignore .. graphviz:: strict digraph "Mercurial graph" { graph [rankdir=LR, splines=polyline ]; node [label="\N"]; 0 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=0, pin=true, pos="1,0!", shape=circle, style=filled, width=1]; 4 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=4, pin=true, pos="1,4!", shape=circle, style=filled, width=1]; 0 -> 4 [arrowhead=none, penwidth=2.0]; 5 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=5, pin=true, pos="1,5!", shape=circle, style=filled, width=1]; 4 -> 5 [arrowhead=none, penwidth=2.0]; 6 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=6, pin=true, pos="1,6!", shape=circle, style=filled, width=1]; 5 -> 6 [arrowhead=none, penwidth=2.0]; 10 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=10, pin=true, pos="1,10!", shape=circle, style=filled, width=1]; 6 -> 10 [arrowhead=none, penwidth=2.0]; 12 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=12, pin=true, pos="1,12!", shape=pentagon, style=filled, width=1]; 10 -> 12 [arrowhead=none, penwidth=2.0]; 14 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=14, pin=true, pos="1,14!", shape=pentagon, style=filled, width=1]; 12 -> 14 [arrowhead=none, penwidth=2.0]; 15 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=15, pin=true, pos="1,15!", shape=pentagon, style=filled, width=1]; 14 -> 15 [arrowhead=none, penwidth=2.0]; } #endif In the mean time I noticed you can't buy animals in a super market and I prune the animal changeset: $ hg prune 2a2b36e14660 1 files updated, 0 files merged, 0 files removed, 0 files unresolved working directory now at 682004e81e71 1 changesets pruned 1 new orphan changesets The animals changeset is still displayed because the "SPAM SPAM SPAM" changeset is neither dead or obsolete. My repository is in an unstable state again. $ hg log -G * fc41faf45288 (draft): SPAM SPAM SPAM | x 2a2b36e14660 (draft): animals | @ 682004e81e71 (draft): bathroom stuff | o 57e9caedbcb8 (public): SPAM SPAM | o 41aff6a42b75 (public): adding fruit | o dfd3a2d7691e (public): adding condiment | o 9ca060c80d74 (public): SPAM | o 7e82d3f3c2cb (public): Monthy Python Shopping list #if docgraph-ext $ hg docgraph -r "all()" --sphinx-directive --rankdir LR #rest-ignore .. graphviz:: strict digraph "Mercurial graph" { graph [rankdir=LR, splines=polyline ]; node [label="\N"]; 0 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=0, pin=true, pos="1,0!", shape=circle, style=filled, width=1]; 4 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=4, pin=true, pos="1,4!", shape=circle, style=filled, width=1]; 0 -> 4 [arrowhead=none, penwidth=2.0]; 5 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=5, pin=true, pos="1,5!", shape=circle, style=filled, width=1]; 4 -> 5 [arrowhead=none, penwidth=2.0]; 6 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=6, pin=true, pos="1,6!", shape=circle, style=filled, width=1]; 5 -> 6 [arrowhead=none, penwidth=2.0]; 10 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=10, pin=true, pos="1,10!", shape=circle, style=filled, width=1]; 6 -> 10 [arrowhead=none, penwidth=2.0]; 12 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=12, pin=true, pos="1,12!", shape=pentagon, style=filled, width=1]; 10 -> 12 [arrowhead=none, penwidth=2.0]; 14 [fillcolor="#DFDFFF", fixedsize=true, group=default_alt, height=1, label=14, pin=true, pos="2,14!", shape=pentagon, style="dotted, filled", width=1]; 12 -> 14 [arrowhead=none, penwidth=2.0]; 15 [fillcolor="#FF4F4F", fixedsize=true, group=default_alt, height=1, label=15, pin=true, pos="2,15!", shape=pentagon, style=filled, width=1]; 14 -> 15 [arrowhead=none, penwidth=2.0]; } #endif $ hg log -r "orphan()" fc41faf45288 (draft): SPAM SPAM SPAM #if docgraph-ext $ hg docgraph -r "orphan()" --sphinx-directive --rankdir LR #rest-ignore .. graphviz:: strict digraph "Mercurial graph" { graph [rankdir=LR, splines=polyline ]; node [label="\N"]; 15 [fillcolor="#FF4F4F", fixedsize=true, group=default_alt, height=1, label=15, pin=true, pos="1,15!", shape=pentagon, style=filled, width=1]; } #endif $ hg evolve move:[15] SPAM SPAM SPAM atop:[12] bathroom stuff merging shopping working directory is now at e6cfcb672150 $ hg log -G @ e6cfcb672150 (draft): SPAM SPAM SPAM | o 682004e81e71 (draft): bathroom stuff | o 57e9caedbcb8 (public): SPAM SPAM | o 41aff6a42b75 (public): adding fruit | o dfd3a2d7691e (public): adding condiment | o 9ca060c80d74 (public): SPAM | o 7e82d3f3c2cb (public): Monthy Python Shopping list #if docgraph-ext $ hg docgraph -r "all()" --sphinx-directive --rankdir LR #rest-ignore .. graphviz:: strict digraph "Mercurial graph" { graph [rankdir=LR, splines=polyline ]; node [label="\N"]; 0 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=0, pin=true, pos="1,0!", shape=circle, style=filled, width=1]; 4 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=4, pin=true, pos="1,4!", shape=circle, style=filled, width=1]; 0 -> 4 [arrowhead=none, penwidth=2.0]; 5 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=5, pin=true, pos="1,5!", shape=circle, style=filled, width=1]; 4 -> 5 [arrowhead=none, penwidth=2.0]; 6 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=6, pin=true, pos="1,6!", shape=circle, style=filled, width=1]; 5 -> 6 [arrowhead=none, penwidth=2.0]; 10 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=10, pin=true, pos="1,10!", shape=circle, style=filled, width=1]; 6 -> 10 [arrowhead=none, penwidth=2.0]; 12 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=12, pin=true, pos="1,12!", shape=pentagon, style=filled, width=1]; 10 -> 12 [arrowhead=none, penwidth=2.0]; 16 [fillcolor="#7F7FFF", fixedsize=true, group=default, height=1, label=16, pin=true, pos="1,16!", shape=pentagon, style=filled, width=1]; 12 -> 16 [arrowhead=none, penwidth=2.0]; } #endif Handling Divergent amend ---------------------------------------------- We can detect that multiple diverging amendments have been made. The `evolve` command can solve this situation. But all corner case are not handled now. This section needs to be written.