rebase: add boolean config item rebase.store-source
This allows to use rebase without recording a rebase_source extra
field. This is useful for example to build a mirror converted from
another SCM (such as svn) by converting only new revisions, and
then incrementally add them to the destination by pulling from the
newly converted (unrelated) repo and rebasing the new revisions
onto the last old already stored changeset. Without this patch the
rebased changesets would always receive some rebase_source that
would depend on the particular history of the conversion process,
instead of only depending on the original source revisions.
This is used to implement a hg mirror repo of SvarDOS (a partially
nonfree but completely redistributable DOS distribution) in the
scripts at https://hg.pushbx.org/ecm/svardos.scr/
In particular, cre.sh creates an svn mirror, upd.sh recreates an
entire hg repo from the svn mirror (which takes too long to do in a
regular job), and akt.sh uses hg convert with the config item
convert.svn.startrev to incrementally convert only the two most
recent revisions already found in the mirror destination plus any
possible new revisions. If any are found, the temporary repo's
changesets are pulled into the destination (as changesets from an
unrelated repository). Then the changesets corresponding to the new
revisions are rebased onto the prior final changeset. (Finally, the
two remaining duplicates of the prior head and its parent are
stripped from the destination repository.)
Without this patch, the particular rebase_source extra field would
depend on the order and times at which akt.sh was used, instead of
only depending on the source repository. In other words, whatever
sequence of upd.sh and akt.sh is used at whatever times, it is
desired that the final output repositories always match each other
exactly.
Function to test discovery between two repos in both directions, using both the local shortcut
(which is currently not activated by default) and the full remotable protocol:
$ testdesc() { # revs_a, revs_b, dagdesc
> if [ -d foo ]; then rm -rf foo; fi
> hg init foo
> cd foo
> hg debugbuilddag "$3"
> hg clone . a $1 --quiet
> hg clone . b $2 --quiet
> echo
> echo "% -- a -> b tree"
> hg -R a debugdiscovery b --verbose --old
> echo
> echo "% -- a -> b set"
> hg -R a debugdiscovery b --verbose --debug --config progress.debug=true
> echo
> echo "% -- a -> b set (tip only)"
> hg -R a debugdiscovery b --verbose --debug --config progress.debug=true --rev tip
> echo
> echo "% -- b -> a tree"
> hg -R b debugdiscovery a --verbose --old
> echo
> echo "% -- b -> a set"
> hg -R b debugdiscovery a --verbose --debug --config progress.debug=true
> echo
> echo "% -- b -> a set (tip only)"
> hg -R b debugdiscovery a --verbose --debug --config progress.debug=true --rev tip
> cd ..
> }
Small superset:
$ testdesc '-ra1 -ra2' '-rb1 -rb2 -rb3' '
> +2:f +1:a1:b1
> <f +4 :a2
> +5 :b2
> <f +3 :b3'
% -- a -> b tree
comparing with b
searching for changes
unpruned common: 01241442b3c2 66f7d451a68b b5714e113bc0
elapsed time: * seconds (glob)
round-trips: 2
queries: 6
heads summary:
total common heads: 2
also local heads: 2
also remote heads: 1
both: 1
local heads: 2
common: 2
missing: 0
remote heads: 3
common: 1
unknown: 2
local changesets: 7
common: 7
heads: 2
roots: 1
missing: 0
heads: 0
roots: 0
first undecided set: 3
heads: 1
roots: 1
common: 3
missing: 0
common heads: 01241442b3c2 b5714e113bc0
% -- a -> b set
comparing with b
query 1; heads
searching for changes
all local changesets known remotely
elapsed time: * seconds (glob)
round-trips: 1
queries: 2
heads summary:
total common heads: 2
also local heads: 2
also remote heads: 1
both: 1
local heads: 2
common: 2
missing: 0
remote heads: 3
common: 1
unknown: 2
local changesets: 7
common: 7
heads: 2
roots: 1
missing: 0
heads: 0
roots: 0
first undecided set: 3
heads: 1
roots: 1
common: 3
missing: 0
common heads: 01241442b3c2 b5714e113bc0
% -- a -> b set (tip only)
comparing with b
query 1; heads
searching for changes
all local changesets known remotely
elapsed time: * seconds (glob)
round-trips: 1
queries: 1
heads summary:
total common heads: 1
also local heads: 1
also remote heads: 0
both: 0
local heads: 2
common: 1
missing: 1
remote heads: 3
common: 0
unknown: 3
local changesets: 7
common: 6
heads: 1
roots: 1
missing: 1
heads: 1
roots: 1
first undecided set: 6
heads: 2
roots: 1
common: 5
missing: 1
common heads: b5714e113bc0
% -- b -> a tree
comparing with a
searching for changes
unpruned common: 01241442b3c2 b5714e113bc0
elapsed time: * seconds (glob)
round-trips: 1
queries: 0
heads summary:
total common heads: 2
also local heads: 1
also remote heads: 2
both: 1
local heads: 3
common: 1
missing: 2
remote heads: 2
common: 2
unknown: 0
local changesets: 15
common: 7
heads: 2
roots: 1
missing: 8
heads: 2
roots: 2
first undecided set: 8
heads: 2
roots: 2
common: 0
missing: 8
common heads: 01241442b3c2 b5714e113bc0
% -- b -> a set
comparing with a
query 1; heads
searching for changes
all remote heads known locally
elapsed time: * seconds (glob)
round-trips: 1
queries: 3
heads summary:
total common heads: 2
also local heads: 1
also remote heads: 2
both: 1
local heads: 3
common: 1
missing: 2
remote heads: 2
common: 2
unknown: 0
local changesets: 15
common: 7
heads: 2
roots: 1
missing: 8
heads: 2
roots: 2
first undecided set: 8
heads: 2
roots: 2
common: 0
missing: 8
common heads: 01241442b3c2 b5714e113bc0
% -- b -> a set (tip only)
comparing with a
query 1; heads
searching for changes
all remote heads known locally
elapsed time: * seconds (glob)
round-trips: 1
queries: 1
heads summary:
total common heads: 2
also local heads: 1
also remote heads: 2
both: 1
local heads: 3
common: 1
missing: 2
remote heads: 2
common: 2
unknown: 0
local changesets: 15
common: 7
heads: 2
roots: 1
missing: 8
heads: 2
roots: 2
first undecided set: 8
heads: 2
roots: 2
common: 0
missing: 8
common heads: 01241442b3c2 b5714e113bc0
Many new:
$ testdesc '-ra1 -ra2' '-rb' '
> +2:f +3:a1 +3:b
> <f +30 :a2'
% -- a -> b tree
comparing with b
searching for changes
unpruned common: bebd167eb94d
elapsed time: * seconds (glob)
round-trips: 2
queries: 3
heads summary:
total common heads: 1
also local heads: 1
also remote heads: 0
both: 0
local heads: 2
common: 1
missing: 1
remote heads: 1
common: 0
unknown: 1
local changesets: 35
common: 5
heads: 1
roots: 1
missing: 30
heads: 1
roots: 1
first undecided set: 34
heads: 2
roots: 1
common: 4
missing: 30
common heads: bebd167eb94d
% -- a -> b set
comparing with b
query 1; heads
searching for changes
taking initial sample
searching: 2 queries
query 2; still undecided: 29, sample size is: 29
2 total queries in *.????s (glob)
elapsed time: * seconds (glob)
round-trips: 2
queries: 31
heads summary:
total common heads: 1
also local heads: 1
also remote heads: 0
both: 0
local heads: 2
common: 1
missing: 1
remote heads: 1
common: 0
unknown: 1
local changesets: 35
common: 5
heads: 1
roots: 1
missing: 30
heads: 1
roots: 1
first undecided set: 34
heads: 2
roots: 1
common: 4
missing: 30
common heads: bebd167eb94d
% -- a -> b set (tip only)
comparing with b
query 1; heads
searching for changes
taking quick initial sample
searching: 2 queries
query 2; still undecided: 31, sample size is: 31
2 total queries in *.????s (glob)
elapsed time: * seconds (glob)
round-trips: 2
queries: 32
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 2
common: 0
missing: 2
remote heads: 1
common: 0
unknown: 1
local changesets: 35
common: 2
heads: 1
roots: 1
missing: 33
heads: 2
roots: 2
first undecided set: 35
heads: 2
roots: 1
common: 2
missing: 33
common heads: 66f7d451a68b
% -- b -> a tree
comparing with a
searching for changes
unpruned common: 66f7d451a68b bebd167eb94d
elapsed time: * seconds (glob)
round-trips: 4
queries: 5
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 1
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 2
common: 1
unknown: 1
local changesets: 8
common: 5
heads: 1
roots: 1
missing: 3
heads: 1
roots: 1
first undecided set: 3
heads: 1
roots: 1
common: 0
missing: 3
common heads: bebd167eb94d
% -- b -> a set
comparing with a
query 1; heads
searching for changes
taking initial sample
searching: 2 queries
query 2; still undecided: 2, sample size is: 2
2 total queries in *.????s (glob)
elapsed time: * seconds (glob)
round-trips: 2
queries: 3
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 1
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 2
common: 1
unknown: 1
local changesets: 8
common: 5
heads: 1
roots: 1
missing: 3
heads: 1
roots: 1
first undecided set: 3
heads: 1
roots: 1
common: 0
missing: 3
common heads: bebd167eb94d
% -- b -> a set (tip only)
comparing with a
query 1; heads
searching for changes
taking initial sample
searching: 2 queries
query 2; still undecided: 2, sample size is: 2
2 total queries in *.????s (glob)
elapsed time: * seconds (glob)
round-trips: 2
queries: 3
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 1
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 2
common: 1
unknown: 1
local changesets: 8
common: 5
heads: 1
roots: 1
missing: 3
heads: 1
roots: 1
first undecided set: 3
heads: 1
roots: 1
common: 0
missing: 3
common heads: bebd167eb94d
Both sides many new with stub:
$ testdesc '-ra1 -ra2' '-rb' '
> +2:f +2:a1 +30 :b
> <f +30 :a2'
% -- a -> b tree
comparing with b
searching for changes
unpruned common: 2dc09a01254d
elapsed time: * seconds (glob)
round-trips: 4
queries: 5
heads summary:
total common heads: 1
also local heads: 1
also remote heads: 0
both: 0
local heads: 2
common: 1
missing: 1
remote heads: 1
common: 0
unknown: 1
local changesets: 34
common: 4
heads: 1
roots: 1
missing: 30
heads: 1
roots: 1
first undecided set: 33
heads: 2
roots: 1
common: 3
missing: 30
common heads: 2dc09a01254d
% -- a -> b set
comparing with b
query 1; heads
searching for changes
taking initial sample
searching: 2 queries
query 2; still undecided: 29, sample size is: 29
2 total queries in *.????s (glob)
elapsed time: * seconds (glob)
round-trips: 2
queries: 31
heads summary:
total common heads: 1
also local heads: 1
also remote heads: 0
both: 0
local heads: 2
common: 1
missing: 1
remote heads: 1
common: 0
unknown: 1
local changesets: 34
common: 4
heads: 1
roots: 1
missing: 30
heads: 1
roots: 1
first undecided set: 33
heads: 2
roots: 1
common: 3
missing: 30
common heads: 2dc09a01254d
% -- a -> b set (tip only)
comparing with b
query 1; heads
searching for changes
taking quick initial sample
searching: 2 queries
query 2; still undecided: 31, sample size is: 31
2 total queries in *.????s (glob)
elapsed time: * seconds (glob)
round-trips: 2
queries: 32
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 2
common: 0
missing: 2
remote heads: 1
common: 0
unknown: 1
local changesets: 34
common: 2
heads: 1
roots: 1
missing: 32
heads: 2
roots: 2
first undecided set: 34
heads: 2
roots: 1
common: 2
missing: 32
common heads: 66f7d451a68b
% -- b -> a tree
comparing with a
searching for changes
unpruned common: 2dc09a01254d 66f7d451a68b
elapsed time: * seconds (glob)
round-trips: 4
queries: 5
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 1
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 2
common: 1
unknown: 1
local changesets: 34
common: 4
heads: 1
roots: 1
missing: 30
heads: 1
roots: 1
first undecided set: 30
heads: 1
roots: 1
common: 0
missing: 30
common heads: 2dc09a01254d
% -- b -> a set
comparing with a
query 1; heads
searching for changes
taking initial sample
searching: 2 queries
query 2; still undecided: 29, sample size is: 29
2 total queries in *.????s (glob)
elapsed time: * seconds (glob)
round-trips: 2
queries: 30
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 1
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 2
common: 1
unknown: 1
local changesets: 34
common: 4
heads: 1
roots: 1
missing: 30
heads: 1
roots: 1
first undecided set: 30
heads: 1
roots: 1
common: 0
missing: 30
common heads: 2dc09a01254d
% -- b -> a set (tip only)
comparing with a
query 1; heads
searching for changes
taking initial sample
searching: 2 queries
query 2; still undecided: 29, sample size is: 29
2 total queries in *.????s (glob)
elapsed time: * seconds (glob)
round-trips: 2
queries: 30
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 1
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 2
common: 1
unknown: 1
local changesets: 34
common: 4
heads: 1
roots: 1
missing: 30
heads: 1
roots: 1
first undecided set: 30
heads: 1
roots: 1
common: 0
missing: 30
common heads: 2dc09a01254d
Both many new:
$ testdesc '-ra' '-rb' '
> +2:f +30 :b
> <f +30 :a'
% -- a -> b tree
comparing with b
searching for changes
unpruned common: 66f7d451a68b
elapsed time: * seconds (glob)
round-trips: 4
queries: 5
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 1
common: 0
unknown: 1
local changesets: 32
common: 2
heads: 1
roots: 1
missing: 30
heads: 1
roots: 1
first undecided set: 32
heads: 1
roots: 1
common: 2
missing: 30
common heads: 66f7d451a68b
% -- a -> b set
comparing with b
query 1; heads
searching for changes
taking quick initial sample
searching: 2 queries
query 2; still undecided: 31, sample size is: 31
2 total queries in *.????s (glob)
elapsed time: * seconds (glob)
round-trips: 2
queries: 32
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 1
common: 0
unknown: 1
local changesets: 32
common: 2
heads: 1
roots: 1
missing: 30
heads: 1
roots: 1
first undecided set: 32
heads: 1
roots: 1
common: 2
missing: 30
common heads: 66f7d451a68b
% -- a -> b set (tip only)
comparing with b
query 1; heads
searching for changes
taking quick initial sample
searching: 2 queries
query 2; still undecided: 31, sample size is: 31
2 total queries in *.????s (glob)
elapsed time: * seconds (glob)
round-trips: 2
queries: 32
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 1
common: 0
unknown: 1
local changesets: 32
common: 2
heads: 1
roots: 1
missing: 30
heads: 1
roots: 1
first undecided set: 32
heads: 1
roots: 1
common: 2
missing: 30
common heads: 66f7d451a68b
% -- b -> a tree
comparing with a
searching for changes
unpruned common: 66f7d451a68b
elapsed time: * seconds (glob)
round-trips: 4
queries: 5
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 1
common: 0
unknown: 1
local changesets: 32
common: 2
heads: 1
roots: 1
missing: 30
heads: 1
roots: 1
first undecided set: 32
heads: 1
roots: 1
common: 2
missing: 30
common heads: 66f7d451a68b
% -- b -> a set
comparing with a
query 1; heads
searching for changes
taking quick initial sample
searching: 2 queries
query 2; still undecided: 31, sample size is: 31
2 total queries in *.????s (glob)
elapsed time: * seconds (glob)
round-trips: 2
queries: 32
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 1
common: 0
unknown: 1
local changesets: 32
common: 2
heads: 1
roots: 1
missing: 30
heads: 1
roots: 1
first undecided set: 32
heads: 1
roots: 1
common: 2
missing: 30
common heads: 66f7d451a68b
% -- b -> a set (tip only)
comparing with a
query 1; heads
searching for changes
taking quick initial sample
searching: 2 queries
query 2; still undecided: 31, sample size is: 31
2 total queries in *.????s (glob)
elapsed time: * seconds (glob)
round-trips: 2
queries: 32
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 1
common: 0
unknown: 1
local changesets: 32
common: 2
heads: 1
roots: 1
missing: 30
heads: 1
roots: 1
first undecided set: 32
heads: 1
roots: 1
common: 2
missing: 30
common heads: 66f7d451a68b
Both many new skewed:
$ testdesc '-ra' '-rb' '
> +2:f +30 :b
> <f +50 :a'
% -- a -> b tree
comparing with b
searching for changes
unpruned common: 66f7d451a68b
elapsed time: * seconds (glob)
round-trips: 4
queries: 5
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 1
common: 0
unknown: 1
local changesets: 52
common: 2
heads: 1
roots: 1
missing: 50
heads: 1
roots: 1
first undecided set: 52
heads: 1
roots: 1
common: 2
missing: 50
common heads: 66f7d451a68b
% -- a -> b set
comparing with b
query 1; heads
searching for changes
taking quick initial sample
searching: 2 queries
query 2; still undecided: 51, sample size is: 51
2 total queries in *.????s (glob)
elapsed time: * seconds (glob)
round-trips: 2
queries: 52
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 1
common: 0
unknown: 1
local changesets: 52
common: 2
heads: 1
roots: 1
missing: 50
heads: 1
roots: 1
first undecided set: 52
heads: 1
roots: 1
common: 2
missing: 50
common heads: 66f7d451a68b
% -- a -> b set (tip only)
comparing with b
query 1; heads
searching for changes
taking quick initial sample
searching: 2 queries
query 2; still undecided: 51, sample size is: 51
2 total queries in *.????s (glob)
elapsed time: * seconds (glob)
round-trips: 2
queries: 52
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 1
common: 0
unknown: 1
local changesets: 52
common: 2
heads: 1
roots: 1
missing: 50
heads: 1
roots: 1
first undecided set: 52
heads: 1
roots: 1
common: 2
missing: 50
common heads: 66f7d451a68b
% -- b -> a tree
comparing with a
searching for changes
unpruned common: 66f7d451a68b
elapsed time: * seconds (glob)
round-trips: 3
queries: 4
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 1
common: 0
unknown: 1
local changesets: 32
common: 2
heads: 1
roots: 1
missing: 30
heads: 1
roots: 1
first undecided set: 32
heads: 1
roots: 1
common: 2
missing: 30
common heads: 66f7d451a68b
% -- b -> a set
comparing with a
query 1; heads
searching for changes
taking quick initial sample
searching: 2 queries
query 2; still undecided: 31, sample size is: 31
2 total queries in *.????s (glob)
elapsed time: * seconds (glob)
round-trips: 2
queries: 32
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 1
common: 0
unknown: 1
local changesets: 32
common: 2
heads: 1
roots: 1
missing: 30
heads: 1
roots: 1
first undecided set: 32
heads: 1
roots: 1
common: 2
missing: 30
common heads: 66f7d451a68b
% -- b -> a set (tip only)
comparing with a
query 1; heads
searching for changes
taking quick initial sample
searching: 2 queries
query 2; still undecided: 31, sample size is: 31
2 total queries in *.????s (glob)
elapsed time: * seconds (glob)
round-trips: 2
queries: 32
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 1
common: 0
unknown: 1
local changesets: 32
common: 2
heads: 1
roots: 1
missing: 30
heads: 1
roots: 1
first undecided set: 32
heads: 1
roots: 1
common: 2
missing: 30
common heads: 66f7d451a68b
Both many new on top of long history:
$ testdesc '-ra' '-rb' '
> +1000:f +30 :b
> <f +50 :a'
% -- a -> b tree
comparing with b
searching for changes
unpruned common: 7ead0cba2838
elapsed time: * seconds (glob)
round-trips: 4
queries: 5
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 1
common: 0
unknown: 1
local changesets: 1050
common: 1000
heads: 1
roots: 1
missing: 50
heads: 1
roots: 1
first undecided set: 1050
heads: 1
roots: 1
common: 1000
missing: 50
common heads: 7ead0cba2838
% -- a -> b set
comparing with b
query 1; heads
searching for changes
taking quick initial sample
searching: 2 queries
query 2; still undecided: 1049, sample size is: 11
sampling from both directions
searching: 3 queries
query 3; still undecided: 31, sample size is: 31
3 total queries in *.????s (glob)
elapsed time: * seconds (glob)
round-trips: 3
queries: 43
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 1
common: 0
unknown: 1
local changesets: 1050
common: 1000
heads: 1
roots: 1
missing: 50
heads: 1
roots: 1
first undecided set: 1050
heads: 1
roots: 1
common: 1000
missing: 50
common heads: 7ead0cba2838
% -- a -> b set (tip only)
comparing with b
query 1; heads
searching for changes
taking quick initial sample
searching: 2 queries
query 2; still undecided: 1049, sample size is: 11
sampling from both directions
searching: 3 queries
query 3; still undecided: 31, sample size is: 31
3 total queries in *.????s (glob)
elapsed time: * seconds (glob)
round-trips: 3
queries: 43
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 1
common: 0
unknown: 1
local changesets: 1050
common: 1000
heads: 1
roots: 1
missing: 50
heads: 1
roots: 1
first undecided set: 1050
heads: 1
roots: 1
common: 1000
missing: 50
common heads: 7ead0cba2838
% -- b -> a tree
comparing with a
searching for changes
unpruned common: 7ead0cba2838
elapsed time: * seconds (glob)
round-trips: 3
queries: 4
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 1
common: 0
unknown: 1
local changesets: 1030
common: 1000
heads: 1
roots: 1
missing: 30
heads: 1
roots: 1
first undecided set: 1030
heads: 1
roots: 1
common: 1000
missing: 30
common heads: 7ead0cba2838
% -- b -> a set
comparing with a
query 1; heads
searching for changes
taking quick initial sample
searching: 2 queries
query 2; still undecided: 1029, sample size is: 11
sampling from both directions
searching: 3 queries
query 3; still undecided: 15, sample size is: 15
3 total queries in *.????s (glob)
elapsed time: * seconds (glob)
round-trips: 3
queries: 27
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 1
common: 0
unknown: 1
local changesets: 1030
common: 1000
heads: 1
roots: 1
missing: 30
heads: 1
roots: 1
first undecided set: 1030
heads: 1
roots: 1
common: 1000
missing: 30
common heads: 7ead0cba2838
% -- b -> a set (tip only)
comparing with a
query 1; heads
searching for changes
taking quick initial sample
searching: 2 queries
query 2; still undecided: 1029, sample size is: 11
sampling from both directions
searching: 3 queries
query 3; still undecided: 15, sample size is: 15
3 total queries in *.????s (glob)
elapsed time: * seconds (glob)
round-trips: 3
queries: 27
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 1
common: 0
missing: 1
remote heads: 1
common: 0
unknown: 1
local changesets: 1030
common: 1000
heads: 1
roots: 1
missing: 30
heads: 1
roots: 1
first undecided set: 1030
heads: 1
roots: 1
common: 1000
missing: 30
common heads: 7ead0cba2838
One with >200 heads. We now switch to send them all in the initial roundtrip, but still do sampling for the later request.
$ hg init manyheads
$ cd manyheads
$ echo "+300:r @a" >dagdesc
$ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads
$ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads
$ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads
$ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads
$ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads
$ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads
$ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads
$ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads
$ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads
$ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads
$ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads
$ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads
$ echo "*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3 *r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3*r+3" >>dagdesc # 20 heads
$ echo "@b *r+3" >>dagdesc # one more head
$ hg debugbuilddag <dagdesc
reading DAG from stdin
$ hg heads -t --template . | wc -c
\s*261 (re)
$ hg clone -b a . a
adding changesets
adding manifests
adding file changes
added 1340 changesets with 0 changes to 0 files (+259 heads)
new changesets 1ea73414a91b:1c51e2c80832
updating to branch a
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg clone -b b . b
adding changesets
adding manifests
adding file changes
added 304 changesets with 0 changes to 0 files
new changesets 1ea73414a91b:513314ca8b3a
updating to branch b
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg -R a debugdiscovery b --debug --verbose --config progress.debug=true --config devel.discovery.randomize=false --config devel.discovery.sample-size.initial=50
comparing with b
query 1; heads
searching for changes
taking quick initial sample
searching: 2 queries
query 2; still undecided: 1080, sample size is: 50
sampling from both directions
searching: 3 queries
query 3; still undecided: 1030, sample size is: 200
sampling from both directions
searching: 4 queries
query 4; still undecided: 547, sample size is: 210
sampling from both directions
searching: 5 queries
query 5; still undecided: 336, sample size is: 220
sampling from both directions
searching: 6 queries
query 6; still undecided: 114, sample size is: 114
6 total queries in *.????s (glob)
elapsed time: * seconds (glob)
round-trips: 6
queries: 1054
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 260
common: 0
missing: 260
remote heads: 1
common: 0
unknown: 1
local changesets: 1340
common: 300
heads: 1
roots: 1
missing: 1040
heads: 260
roots: 260
first undecided set: 1340
heads: 260
roots: 1
common: 300
missing: 1040
common heads: 3ee37d65064a
$ hg -R a debugdiscovery b --debug --verbose --config progress.debug=true --rev tip
comparing with b
query 1; heads
searching for changes
taking quick initial sample
searching: 2 queries
query 2; still undecided: 303, sample size is: 9
sampling from both directions
searching: 3 queries
query 3; still undecided: 3, sample size is: 3
3 total queries in *.????s (glob)
elapsed time: * seconds (glob)
round-trips: 3
queries: 13
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 260
common: 0
missing: 260
remote heads: 1
common: 0
unknown: 1
local changesets: 1340
common: 300
heads: 1
roots: 1
missing: 1040
heads: 260
roots: 260
first undecided set: 1340
heads: 260
roots: 1
common: 300
missing: 1040
common heads: 3ee37d65064a
$ hg -R a debugdiscovery b --debug --config devel.discovery.exchange-heads=false --config devel.discovery.randomize=false --config devel.discovery.grow-sample.rate=1.20 --config devel.discovery.sample-size=50
comparing with b
searching for changes
sampling from both directions
query 1; still undecided: 1340, sample size is: 50
sampling from both directions
query 2; still undecided: 995, sample size is: 60
sampling from both directions
query 3; still undecided: 913, sample size is: 72
sampling from both directions
query 4; still undecided: 816, sample size is: 204
sampling from both directions
query 5; still undecided: 612, sample size is: 153
sampling from both directions
query 6; still undecided: 456, sample size is: 123
sampling from both directions
query 7; still undecided: 332, sample size is: 147
sampling from both directions
query 8; still undecided: 184, sample size is: 176
sampling from both directions
query 9; still undecided: 8, sample size is: 8
9 total queries in *s (glob)
elapsed time: * seconds (glob)
round-trips: 9
queries: 993
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 260
common: 0
missing: 260
remote heads: 1
common: 0
unknown: 1
local changesets: 1340
common: 300
heads: 1
roots: 1
missing: 1040
heads: 260
roots: 260
first undecided set: 1340
heads: 260
roots: 1
common: 300
missing: 1040
common heads: 3ee37d65064a
Test actual protocol when pulling one new head in addition to common heads
$ hg clone -U b c
$ hg -R c id -ir tip
513314ca8b3a
$ hg -R c up -qr default
$ touch c/f
$ hg -R c ci -Aqm "extra head"
$ hg -R c id -i
e64a39e7da8b
$ hg serve -R c -p $HGPORT -d --pid-file=hg.pid -A access.log -E errors.log
$ cat hg.pid >> $DAEMON_PIDS
$ hg -R b incoming http://localhost:$HGPORT/ -T '{node|short}\n'
comparing with http://localhost:$HGPORT/
searching for changes
e64a39e7da8b
$ killdaemons.py
$ cut -d' ' -f6- access.log | grep -v cmd=known # cmd=known uses random sampling
"GET /?cmd=capabilities HTTP/1.1" 200 -
"GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D513314ca8b3ae4dac8eec56966265b00fcf866db x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull
"GET /?cmd=getbundle HTTP/1.1" 200 - x-hgarg-1:$USUAL_BUNDLE_CAPS$&cg=1&common=513314ca8b3ae4dac8eec56966265b00fcf866db&heads=e64a39e7da8b0d54bc63e81169aff001c13b3477 x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull
"GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=phases x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull
$ cat errors.log
$ cd ..
Issue 4438 - test coverage for 3ef893520a85 issues.
$ mkdir issue4438
$ cd issue4438
#if false
generate new bundles:
$ hg init r1
$ for i in `"$PYTHON" $TESTDIR/seq.py 101`; do hg -R r1 up -qr null && hg -R r1 branch -q b$i && hg -R r1 ci -qmb$i; done
$ hg clone -q r1 r2
$ for i in `"$PYTHON" $TESTDIR/seq.py 10`; do hg -R r1 up -qr null && hg -R r1 branch -q c$i && hg -R r1 ci -qmc$i; done
$ hg -R r2 branch -q r2change && hg -R r2 ci -qmr2change
$ hg -R r1 bundle -qa $TESTDIR/bundles/issue4438-r1.hg
$ hg -R r2 bundle -qa $TESTDIR/bundles/issue4438-r2.hg
#else
use existing bundles:
$ hg init r1
$ hg -R r1 -q unbundle $TESTDIR/bundles/issue4438-r1.hg
$ hg -R r1 -q up
$ hg init r2
$ hg -R r2 -q unbundle $TESTDIR/bundles/issue4438-r2.hg
$ hg -R r2 -q up
#endif
Set iteration order could cause wrong and unstable results - fixed in 73cfaa348650:
$ hg -R r1 outgoing r2 -T'{rev} '
comparing with r2
searching for changes
101 102 103 104 105 106 107 108 109 110 (no-eol)
The case where all the 'initialsamplesize' samples already were common would
give 'all remote heads known locally' without checking the remaining heads -
fixed in 86c35b7ae300:
$ cat >> r1/.hg/hgrc << EOF
> [devel]
> discovery.randomize = False
> EOF
$ hg -R r1 outgoing r2 -T'{rev} ' --config extensions.blackbox= \
> --config blackbox.track='command commandfinish discovery'
comparing with r2
searching for changes
101 102 103 104 105 106 107 108 109 110 (no-eol)
$ hg -R r1 --config extensions.blackbox= blackbox --config blackbox.track=
* @5d0b986a083e0d91f116de4691e2aaa54d5bbec0 (*)> serve --no-profile --cmdserver chgunix * (glob) (chg !)
* @5d0b986a083e0d91f116de4691e2aaa54d5bbec0 (*)> -R r1 outgoing r2 *-T{rev} * --config *extensions.blackbox=* (glob)
* @5d0b986a083e0d91f116de4691e2aaa54d5bbec0 (*)> found 101 common and 1 unknown server heads, 1 roundtrips in *.????s (glob)
* @5d0b986a083e0d91f116de4691e2aaa54d5bbec0 (*)> -R r1 outgoing r2 *-T{rev} * --config *extensions.blackbox=* exited 0 after *.?? seconds (glob)
$ cd ..
Even if the set of revs to discover is restricted, unrelated revs may be
returned as common heads.
$ mkdir ancestorsof
$ cd ancestorsof
$ hg init a
$ hg clone a b -q
$ cd b
$ hg debugbuilddag '.:root *root *root'
$ hg log -G -T '{node|short}'
o fa942426a6fd
|
| o 66f7d451a68b
|/
o 1ea73414a91b
$ hg push -r 66f7d451a68b -q
$ hg debugdiscovery --verbose --rev fa942426a6fd
comparing with $TESTTMP/ancestorsof/a
searching for changes
elapsed time: * seconds (glob)
round-trips: 1
queries: 1
heads summary:
total common heads: 1
also local heads: 1
also remote heads: 1
both: 1
local heads: 2
common: 1
missing: 1
remote heads: 1
common: 1
unknown: 0
local changesets: 3
common: 2
heads: 1
roots: 1
missing: 1
heads: 1
roots: 1
first undecided set: 1
heads: 1
roots: 1
common: 0
missing: 1
common heads: 66f7d451a68b
$ cd ..
Test debuging discovery using different subset of the same repository
=====================================================================
remote is a local subset
------------------------
remote will be last 25 heads of the local graph
$ cd $TESTTMP/manyheads
$ hg -R a debugdiscovery \
> --debug \
> --remote-as-revs 'last(heads(all()), 25)' \
> --config devel.discovery.randomize=false
query 1; heads
searching for changes
all remote heads known locally
elapsed time: * seconds (glob)
round-trips: 1
queries: 260
heads summary:
total common heads: 25
also local heads: 25
also remote heads: 25
both: 25
local heads: 260
common: 25
missing: 235
remote heads: 25
common: 25
unknown: 0
local changesets: 1340
common: 400
heads: 25
roots: 1
missing: 940
heads: 235
roots: 235
first undecided set: 940
heads: 235
roots: 235
common: 0
missing: 940
common heads: 0dfd965d91c6 0fe09b60448d 14a17233ce9d 175c0a3072cf 1c51e2c80832 1e51600e0698 24eb5f9bdbab 25ce09526613 36bd00abde57 426989fdefa0 596d87362679 5dd1039ea5c0 5ef24f022278 5f230dc19419 80b39998accb 88f40688ffb5 9e37ddf8c632 abf4d55b075e b2ce801fddfe b368b6ac3ce3 c959bf2e869c c9fba6ba4e2e d783207cf649 d9a51e256f21 e3717a4e3753
local is a local subset
------------------------
remote will be last 25 heads of the local graph
$ cd $TESTTMP/manyheads
$ hg -R a debugdiscovery b \
> --debug \
> --local-as-revs 'first(heads(all()), 25)' \
> --config devel.discovery.randomize=false
comparing with b
query 1; heads
searching for changes
taking quick initial sample
query 2; still undecided: 375, sample size is: 81
sampling from both directions
query 3; still undecided: 3, sample size is: 3
3 total queries *s (glob)
elapsed time: * seconds (glob)
round-trips: 3
queries: 109
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 25
common: 0
missing: 25
remote heads: 1
common: 0
unknown: 1
local changesets: 400
common: 300
heads: 1
roots: 1
missing: 100
heads: 25
roots: 25
first undecided set: 400
heads: 25
roots: 1
common: 300
missing: 100
common heads: 3ee37d65064a
both local and remove are subset
------------------------
remote will be last 25 heads of the local graph
$ cd $TESTTMP/manyheads
$ hg -R a debugdiscovery \
> --debug \
> --local-as-revs 'first(heads(all()), 25)' \
> --remote-as-revs 'last(heads(all()), 25)' \
> --config devel.discovery.randomize=false
query 1; heads
searching for changes
taking quick initial sample
query 2; still undecided: 375, sample size is: 81
sampling from both directions
query 3; still undecided: 3, sample size is: 3
3 total queries in *s (glob)
elapsed time: * seconds (glob)
round-trips: 3
queries: 109
heads summary:
total common heads: 1
also local heads: 0
also remote heads: 0
both: 0
local heads: 25
common: 0
missing: 25
remote heads: 25
common: 0
unknown: 25
local changesets: 400
common: 300
heads: 1
roots: 1
missing: 100
heads: 25
roots: 25
first undecided set: 400
heads: 25
roots: 1
common: 300
missing: 100
common heads: 3ee37d65064a
Test -T json output
-------------------
$ hg -R a debugdiscovery \
> -T json \
> --debug \
> --local-as-revs 'first(heads(all()), 25)' \
> --remote-as-revs 'last(heads(all()), 25)' \
> --config devel.discovery.randomize=false
[
{
"elapsed": *, (glob)
"nb-common-heads": 1,
"nb-common-heads-both": 0,
"nb-common-heads-local": 0,
"nb-common-heads-remote": 0,
"nb-common-roots": 1,
"nb-head-local": 25,
"nb-head-local-missing": 25,
"nb-head-remote": 25,
"nb-head-remote-unknown": 25,
"nb-ini_und": 400,
"nb-ini_und-common": 300,
"nb-ini_und-heads": 25,
"nb-ini_und-missing": 100,
"nb-ini_und-roots": 1,
"nb-missing-heads": 25,
"nb-missing-roots": 25,
"nb-revs": 400,
"nb-revs-common": 300,
"nb-revs-missing": 100,
"output": "query 1; heads\nsearching for changes\ntaking quick initial sample\nquery 2; still undecided: 375, sample size is: 81\nsampling from both directions\nquery 3; still undecided: 3, sample size is: 3\n3 total queries in *s\n", (glob)
"total-queries": 109,
"total-roundtrips": 3
}
]