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hgweb: support constructing URLs from an alternate base URL...
hgweb: support constructing URLs from an alternate base URL The web.baseurl config option allows server operators to define a custom URL for hosted content. The way it works today is that hgwebdir parses this config option into URL components then updates the appropriate WSGI environment variables so the request "lies" about its details. For example, SERVER_NAME is updated to reflect the alternate base URL's hostname. The WSGI environment should not be modified because WSGI applications may want to know the original request details (for debugging, etc). This commit teaches our request parser about the existence of an alternate base URL. If defined, the advertised URL and other self-reflected paths will take the alternate base URL into account. The hgweb WSGI application didn't use web.baseurl. But hgwebdir did. We update hgwebdir to alter the environment parsing accordingly. The old code around environment manipulation has been removed. With this change, parserequestfromenv() has grown to a bit unwieldy. Now that practically everyone is using it, it is obvious that there is some unused features that can be trimmed. So look for this in follow-up commits. Differential Revision: https://phab.mercurial-scm.org/D2822
Phil Cohen - - Load All Authors

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r35386:469b06b4 default
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test-rebase-newancestor.t
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$ cat >> $HGRCPATH <<EOF
> [format]
> usegeneraldelta=yes
> [extensions]
> rebase=
> drawdag=$TESTDIR/drawdag.py
> [alias]
> tglog = log -G --template "{rev}: {node|short} '{desc}' {branches}\n"
> EOF
$ hg init repo
$ cd repo
$ echo A > a
$ echo >> a
$ hg ci -Am A
adding a
$ echo B > a
$ echo >> a
$ hg ci -m B
$ echo C > a
$ echo >> a
$ hg ci -m C
$ hg up -q -C 0
$ echo D >> a
$ hg ci -Am AD
created new head
$ hg tglog
@ 3: 3878212183bd 'AD'
|
| o 2: 30ae917c0e4f 'C'
| |
| o 1: 0f4f7cb4f549 'B'
|/
o 0: 1e635d440a73 'A'
$ hg rebase -s 1 -d 3
rebasing 1:0f4f7cb4f549 "B"
merging a
rebasing 2:30ae917c0e4f "C"
merging a
saved backup bundle to $TESTTMP/repo/.hg/strip-backup/0f4f7cb4f549-82b3b163-rebase.hg
$ hg tglog
o 3: 25773bc4b4b0 'C'
|
o 2: c09015405f75 'B'
|
@ 1: 3878212183bd 'AD'
|
o 0: 1e635d440a73 'A'
$ cd ..
Test rebasing of merges with ancestors of the rebase destination - a situation
that often happens when trying to recover from repeated merging with a mainline
branch.
The test case creates a dev branch that contains a couple of merges from the
default branch. When rebasing to the default branch, these merges would be
merges with ancestors on the same branch. The merges _could_ contain some
interesting conflict resolutions or additional changes in the merge commit, but
that is mixed up with the actual merge stuff and there is in general no way to
separate them.
Note: The dev branch contains _no_ changes to f-default. It might be unclear
how rebasing of ancestor merges should be handled, but the current behavior
with spurious prompts for conflicts in files that didn't change seems very
wrong.
$ hg init ancestor-merge
$ cd ancestor-merge
$ touch f-default
$ hg ci -Aqm 'default: create f-default'
$ hg branch -q dev
$ hg ci -qm 'dev: create branch'
$ echo stuff > f-dev
$ hg ci -Aqm 'dev: f-dev stuff'
$ hg up -q default
$ echo stuff > f-default
$ hg ci -m 'default: f-default stuff'
$ hg up -q dev
$ hg merge -q default
$ hg ci -m 'dev: merge default'
$ hg up -q default
$ hg rm f-default
$ hg ci -m 'default: remove f-default'
$ hg up -q dev
$ hg merge -q default
$ hg ci -m 'dev: merge default'
$ hg up -q default
$ echo stuff > f-other
$ hg ci -Aqm 'default: f-other stuff'
$ hg tglog
@ 7: e08089805d82 'default: f-other stuff'
|
| o 6: 9455ee510502 'dev: merge default' dev
|/|
o | 5: 462860db70a1 'default: remove f-default'
| |
| o 4: 4b019212aaf6 'dev: merge default' dev
|/|
o | 3: f157ecfd2b6b 'default: f-default stuff'
| |
| o 2: ec2c14fb2984 'dev: f-dev stuff' dev
| |
| o 1: 1d1a643d390e 'dev: create branch' dev
|/
o 0: e90e8eb90b6f 'default: create f-default'
$ hg clone -qU . ../ancestor-merge-2
Full rebase all the way back from branching point:
$ hg rebase -r 'only(dev,default)' -d default --config ui.interactive=True << EOF
> c
> EOF
rebasing 1:1d1a643d390e "dev: create branch"
note: rebase of 1:1d1a643d390e created no changes to commit
rebasing 2:ec2c14fb2984 "dev: f-dev stuff"
rebasing 4:4b019212aaf6 "dev: merge default"
other [source] changed f-default which local [dest] deleted
use (c)hanged version, leave (d)eleted, or leave (u)nresolved? c
rebasing 6:9455ee510502 "dev: merge default"
saved backup bundle to $TESTTMP/ancestor-merge/.hg/strip-backup/1d1a643d390e-43e9e04b-rebase.hg
$ hg tglog
o 6: fbc098e72227 'dev: merge default'
|
o 5: eda7b7f46f5d 'dev: merge default'
|
o 4: 3e075b1c0a40 'dev: f-dev stuff'
|
@ 3: e08089805d82 'default: f-other stuff'
|
o 2: 462860db70a1 'default: remove f-default'
|
o 1: f157ecfd2b6b 'default: f-default stuff'
|
o 0: e90e8eb90b6f 'default: create f-default'
Grafty cherry picking rebasing:
$ cd ../ancestor-merge-2
$ hg phase -fdr0:
$ hg rebase -r 'children(only(dev,default))' -d default --config ui.interactive=True << EOF
> c
> EOF
rebasing 2:ec2c14fb2984 "dev: f-dev stuff"
rebasing 4:4b019212aaf6 "dev: merge default"
other [source] changed f-default which local [dest] deleted
use (c)hanged version, leave (d)eleted, or leave (u)nresolved? c
rebasing 6:9455ee510502 "dev: merge default"
saved backup bundle to $TESTTMP/ancestor-merge-2/.hg/strip-backup/ec2c14fb2984-62d0b222-rebase.hg
$ hg tglog
o 7: fbc098e72227 'dev: merge default'
|
o 6: eda7b7f46f5d 'dev: merge default'
|
o 5: 3e075b1c0a40 'dev: f-dev stuff'
|
o 4: e08089805d82 'default: f-other stuff'
|
o 3: 462860db70a1 'default: remove f-default'
|
o 2: f157ecfd2b6b 'default: f-default stuff'
|
| o 1: 1d1a643d390e 'dev: create branch' dev
|/
o 0: e90e8eb90b6f 'default: create f-default'
$ cd ..
Test order of parents of rebased merged with un-rebased changes as p1.
$ hg init parentorder
$ cd parentorder
$ touch f
$ hg ci -Aqm common
$ touch change
$ hg ci -Aqm change
$ touch target
$ hg ci -Aqm target
$ hg up -qr 0
$ touch outside
$ hg ci -Aqm outside
$ hg merge -qr 1
$ hg ci -m 'merge p1 3=outside p2 1=ancestor'
$ hg par
changeset: 4:6990226659be
tag: tip
parent: 3:f59da8fc0fcf
parent: 1:dd40c13f7a6f
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: merge p1 3=outside p2 1=ancestor
$ hg up -qr 1
$ hg merge -qr 3
$ hg ci -qm 'merge p1 1=ancestor p2 3=outside'
$ hg par
changeset: 5:a57575f79074
tag: tip
parent: 1:dd40c13f7a6f
parent: 3:f59da8fc0fcf
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: merge p1 1=ancestor p2 3=outside
$ hg tglog
@ 5: a57575f79074 'merge p1 1=ancestor p2 3=outside'
|\
+---o 4: 6990226659be 'merge p1 3=outside p2 1=ancestor'
| |/
| o 3: f59da8fc0fcf 'outside'
| |
+---o 2: a60552eb93fb 'target'
| |
o | 1: dd40c13f7a6f 'change'
|/
o 0: 02f0f58d5300 'common'
$ hg rebase -r 4 -d 2
rebasing 4:6990226659be "merge p1 3=outside p2 1=ancestor"
saved backup bundle to $TESTTMP/parentorder/.hg/strip-backup/6990226659be-4d67a0d3-rebase.hg
$ hg tip
changeset: 5:cca50676b1c5
tag: tip
parent: 2:a60552eb93fb
parent: 3:f59da8fc0fcf
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: merge p1 3=outside p2 1=ancestor
$ hg rebase -r 4 -d 2
rebasing 4:a57575f79074 "merge p1 1=ancestor p2 3=outside"
saved backup bundle to $TESTTMP/parentorder/.hg/strip-backup/a57575f79074-385426e5-rebase.hg
$ hg tip
changeset: 5:f9daf77ffe76
tag: tip
parent: 2:a60552eb93fb
parent: 3:f59da8fc0fcf
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: merge p1 1=ancestor p2 3=outside
$ hg tglog
@ 5: f9daf77ffe76 'merge p1 1=ancestor p2 3=outside'
|\
+---o 4: cca50676b1c5 'merge p1 3=outside p2 1=ancestor'
| |/
| o 3: f59da8fc0fcf 'outside'
| |
o | 2: a60552eb93fb 'target'
| |
o | 1: dd40c13f7a6f 'change'
|/
o 0: 02f0f58d5300 'common'
rebase of merge of ancestors
$ hg up -qr 2
$ hg merge -qr 3
$ echo 'other change while merging future "rebase ancestors"' > other
$ hg ci -Aqm 'merge rebase ancestors'
$ hg rebase -d 5 -v
rebasing 6:4c5f12f25ebe "merge rebase ancestors" (tip)
resolving manifests
removing other
note: merging f9daf77ffe76+ and 4c5f12f25ebe using bids from ancestors a60552eb93fb and f59da8fc0fcf
calculating bids for ancestor a60552eb93fb
resolving manifests
calculating bids for ancestor f59da8fc0fcf
resolving manifests
auction for merging merge bids
other: consensus for g
end of auction
getting other
committing files:
other
committing manifest
committing changelog
rebase merging completed
1 changesets found
uncompressed size of bundle content:
199 (changelog)
216 (manifests)
182 other
saved backup bundle to $TESTTMP/parentorder/.hg/strip-backup/4c5f12f25ebe-f46990e5-rebase.hg
1 changesets found
uncompressed size of bundle content:
254 (changelog)
167 (manifests)
182 other
adding branch
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
rebase completed
$ hg tglog
@ 6: 113755df812b 'merge rebase ancestors'
|
o 5: f9daf77ffe76 'merge p1 1=ancestor p2 3=outside'
|\
+---o 4: cca50676b1c5 'merge p1 3=outside p2 1=ancestor'
| |/
| o 3: f59da8fc0fcf 'outside'
| |
o | 2: a60552eb93fb 'target'
| |
o | 1: dd40c13f7a6f 'change'
|/
o 0: 02f0f58d5300 'common'
Due to the limitation of 3-way merge algorithm (1 merge base), rebasing a merge
may include unwanted content:
$ hg init $TESTTMP/dual-merge-base1
$ cd $TESTTMP/dual-merge-base1
$ hg debugdrawdag <<'EOS'
> F
> /|
> D E
> | |
> B C
> |/
> A Z
> |/
> R
> EOS
$ hg rebase -r D+E+F -d Z
rebasing 5:5f2c926dfecf "D" (D)
rebasing 6:b296604d9846 "E" (E)
rebasing 7:caa9781e507d "F" (F tip)
abort: rebasing 7:caa9781e507d will include unwanted changes from 4:d6003a550c2c or 3:c1e6b162678d
[255]
The warning does not get printed if there is no unwanted change detected:
$ hg init $TESTTMP/dual-merge-base2
$ cd $TESTTMP/dual-merge-base2
$ hg debugdrawdag <<'EOS'
> D
> /|
> B C
> |/
> A Z
> |/
> R
> EOS
$ hg rebase -r B+C+D -d Z
rebasing 3:c1e6b162678d "B" (B)
rebasing 4:d6003a550c2c "C" (C)
rebasing 5:c8f78076273e "D" (D tip)
saved backup bundle to $TESTTMP/dual-merge-base2/.hg/strip-backup/d6003a550c2c-6f1424b6-rebase.hg
$ hg manifest -r 'desc(D)'
B
C
R
Z
The merge base could be different from old p1 (changed parent becomes new p1):
$ hg init $TESTTMP/chosen-merge-base1
$ cd $TESTTMP/chosen-merge-base1
$ hg debugdrawdag <<'EOS'
> F
> /|
> D E
> | |
> B C Z
> EOS
$ hg rebase -r D+F -d Z
rebasing 3:004dc1679908 "D" (D)
rebasing 5:4be4cbf6f206 "F" (F tip)
saved backup bundle to $TESTTMP/chosen-merge-base1/.hg/strip-backup/004dc1679908-06a66a3c-rebase.hg
$ hg manifest -r 'desc(F)'
C
D
E
Z
$ hg log -r `hg log -r 'desc(F)' -T '{p1node}'` -T '{desc}\n'
D
$ hg init $TESTTMP/chosen-merge-base2
$ cd $TESTTMP/chosen-merge-base2
$ hg debugdrawdag <<'EOS'
> F
> /|
> D E
> | |
> B C Z
> EOS
$ hg rebase -r E+F -d Z
rebasing 4:974e4943c210 "E" (E)
rebasing 5:4be4cbf6f206 "F" (F tip)
saved backup bundle to $TESTTMP/chosen-merge-base2/.hg/strip-backup/974e4943c210-b2874da5-rebase.hg
$ hg manifest -r 'desc(F)'
B
D
E
Z
$ hg log -r `hg log -r 'desc(F)' -T '{p1node}'` -T '{desc}\n'
E