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requirements: add an official `REVLOG_COMPRESSION_ZSTD` const
authorPierre-Yves David <pierre-yves.david@octobus.net>
Mon, 24 Jan 2022 12:44:20 +0100
changeset 48652 6fd9a17c32ab
parent 48651 c3239f2ee61b
child 48653 a3cf460a6b1b
requirements: add an official `REVLOG_COMPRESSION_ZSTD` const Such constant was missing and its value was missing from the set of requirements that needs to be preserved through stream clone. This did not had any consequence yet as the "bundle 2 does not filter its requirements" is shadowing the issue. However we are now in a situation where we can fix this issue. So lets do it next. With the preparation work on test, changing the streamreqs value only impact two tests, where checking the full value seems to remains relevant. Important note: Since older version of Mercurial used the old `supportedformat` class attribute to check for stream requirement they supported, older version will consider this requirements to prevent them from using streaming clone. Even as they support this requirements for years. Pack for stable will be send to fix it, but they will have to be backported to older version if needed. Differential Revision: https://phab.mercurial-scm.org/D12083
mercurial/localrepo.py file | annotate | diff | comparison | revisions
mercurial/requirements.py file | annotate | diff | comparison | revisions
tests/test-bundle.t file | annotate | diff | comparison | revisions
tests/test-clonebundles.t file | annotate | diff | comparison | revisions
tests/test-debugcommands.t file | annotate | diff | comparison | revisions 
--- a/mercurial/localrepo.py	Tue Jan 18 20:35:04 2022 +0100
+++ b/mercurial/localrepo.py	Mon Jan 24 12:44:20 2022 +0100
@@ -932,7 +932,7 @@
         if engine.available() and engine.revlogheader():
             supported.add(b'exp-compression-%s' % name)
             if engine.name() == b'zstd':
-                supported.add(b'revlog-compression-zstd')
+                supported.add(requirementsmod.REVLOG_COMPRESSION_ZSTD)
 
     return supported
 
--- a/mercurial/requirements.py	Tue Jan 18 20:35:04 2022 +0100
+++ b/mercurial/requirements.py	Mon Jan 24 12:44:20 2022 +0100
@@ -36,6 +36,9 @@
 
 REVLOGV1_REQUIREMENT = b'revlogv1'
 
+# allow using ZSTD as compression engine for revlog content
+REVLOG_COMPRESSION_ZSTD = b'revlog-compression-zstd'
+
 # Increment the sub-version when the revlog v2 format changes to lock out old
 # clients.
 CHANGELOGV2_REQUIREMENT = b'exp-changelog-v2'
@@ -109,6 +112,7 @@
     DIRSTATE_V2_REQUIREMENT,
     GENERALDELTA_REQUIREMENT,
     NODEMAP_REQUIREMENT,
+    REVLOG_COMPRESSION_ZSTD,
     REVLOGV1_REQUIREMENT,
     REVLOGV2_REQUIREMENT,
     SHARESAFE_REQUIREMENT,
--- a/tests/test-bundle.t	Tue Jan 18 20:35:04 2022 +0100
+++ b/tests/test-bundle.t	Mon Jan 24 12:44:20 2022 +0100
@@ -297,32 +297,32 @@
 
   $ hg -R test debugcreatestreamclonebundle packed.hg
   writing 2665 bytes for 6 files
-  bundle requirements: generaldelta, persistent-nodemap, revlogv1, sparserevlog
+  bundle requirements: generaldelta, persistent-nodemap, revlog-compression-zstd, revlogv1, sparserevlog
 
   $ f -B 64 --size --sha1 --hexdump packed.hg
-  packed.hg: size=2860, sha1=81d7a2e535892cda51e82c200f818de2cca828d3
+  packed.hg: size=2884, sha1=b0c868701f8a9fe44daf094b2f5bf661cf90c789
   0000: 48 47 53 31 55 4e 00 00 00 00 00 00 00 06 00 00 |HGS1UN..........|
-  0010: 00 00 00 00 0a 69 00 36 67 65 6e 65 72 61 6c 64 |.....i.6generald|
+  0010: 00 00 00 00 0a 69 00 4e 67 65 6e 65 72 61 6c 64 |.....i.Ngenerald|
   0020: 65 6c 74 61 2c 70 65 72 73 69 73 74 65 6e 74 2d |elta,persistent-|
-  0030: 6e 6f 64 65 6d 61 70 2c 72 65 76 6c 6f 67 76 31 |nodemap,revlogv1|
+  0030: 6e 6f 64 65 6d 61 70 2c 72 65 76 6c 6f 67 2d 63 |nodemap,revlog-c|
   $ hg debugbundle --spec packed.hg
-  none-packed1;requirements%3Dgeneraldelta%2Cpersistent-nodemap%2Crevlogv1%2Csparserevlog
+  none-packed1;requirements%3Dgeneraldelta%2Cpersistent-nodemap%2Crevlog-compression-zstd%2Crevlogv1%2Csparserevlog
 #endif
 
 #if reporevlogstore no-rust zstd
 
   $ hg -R test debugcreatestreamclonebundle packed.hg
   writing 2665 bytes for 6 files
-  bundle requirements: generaldelta, revlogv1, sparserevlog
+  bundle requirements: generaldelta, revlog-compression-zstd, revlogv1, sparserevlog
 
   $ f -B 64 --size --sha1 --hexdump packed.hg
-  packed.hg: size=2841, sha1=8b645a65f49b0ae43042a9f3da56d4bfdf1c7f99
+  packed.hg: size=2865, sha1=353d10311f4befa195d9a1ca4b8e26518115c702
   0000: 48 47 53 31 55 4e 00 00 00 00 00 00 00 06 00 00 |HGS1UN..........|
-  0010: 00 00 00 00 0a 69 00 23 67 65 6e 65 72 61 6c 64 |.....i.#generald|
-  0020: 65 6c 74 61 2c 72 65 76 6c 6f 67 76 31 2c 73 70 |elta,revlogv1,sp|
-  0030: 61 72 73 65 72 65 76 6c 6f 67 00 64 61 74 61 2f |arserevlog.data/|
+  0010: 00 00 00 00 0a 69 00 3b 67 65 6e 65 72 61 6c 64 |.....i.;generald|
+  0020: 65 6c 74 61 2c 72 65 76 6c 6f 67 2d 63 6f 6d 70 |elta,revlog-comp|
+  0030: 72 65 73 73 69 6f 6e 2d 7a 73 74 64 2c 72 65 76 |ression-zstd,rev|
   $ hg debugbundle --spec packed.hg
-  none-packed1;requirements%3Dgeneraldelta%2Crevlogv1%2Csparserevlog
+  none-packed1;requirements%3Dgeneraldelta%2Crevlog-compression-zstd%2Crevlogv1%2Csparserevlog
 #endif
 
 #if reporevlogstore no-rust no-zstd
@@ -357,17 +357,17 @@
 
   $ hg -R testnongd debugcreatestreamclonebundle packednongd.hg
   writing 301 bytes for 3 files
-  bundle requirements: persistent-nodemap, revlogv1
+  bundle requirements: persistent-nodemap, revlog-compression-zstd, revlogv1
 
   $ f -B 64 --size --sha1 --hexdump packednongd.hg
-  packednongd.hg: size=402, sha1=d3cc1417f0e8142cf9340aaaa520b660ad3ec3ea
+  packednongd.hg: size=426, sha1=79563ccd6ef779bcfe62a4da64f89a1b308e92e0
   0000: 48 47 53 31 55 4e 00 00 00 00 00 00 00 03 00 00 |HGS1UN..........|
-  0010: 00 00 00 00 01 2d 00 1c 70 65 72 73 69 73 74 65 |.....-..persiste|
+  0010: 00 00 00 00 01 2d 00 34 70 65 72 73 69 73 74 65 |.....-.4persiste|
   0020: 6e 74 2d 6e 6f 64 65 6d 61 70 2c 72 65 76 6c 6f |nt-nodemap,revlo|
-  0030: 67 76 31 00 64 61 74 61 2f 66 6f 6f 2e 69 00 36 |gv1.data/foo.i.6|
+  0030: 67 2d 63 6f 6d 70 72 65 73 73 69 6f 6e 2d 7a 73 |g-compression-zs|
 
   $ hg debugbundle --spec packednongd.hg
-  none-packed1;requirements%3Dpersistent-nodemap%2Crevlogv1
+  none-packed1;requirements%3Dpersistent-nodemap%2Crevlog-compression-zstd%2Crevlogv1
 
 #endif
 
@@ -375,17 +375,17 @@
 
   $ hg -R testnongd debugcreatestreamclonebundle packednongd.hg
   writing 301 bytes for 3 files
-  bundle requirements: revlogv1
+  bundle requirements: revlog-compression-zstd, revlogv1
 
   $ f -B 64 --size --sha1 --hexdump packednongd.hg
-  packednongd.hg: size=383, sha1=1d9c230238edd5d38907100b729ba72b1831fe6f
+  packednongd.hg: size=407, sha1=0b8714422b785ba8eb98c916b41ffd5fb994c9b5
   0000: 48 47 53 31 55 4e 00 00 00 00 00 00 00 03 00 00 |HGS1UN..........|
-  0010: 00 00 00 00 01 2d 00 09 72 65 76 6c 6f 67 76 31 |.....-..revlogv1|
-  0020: 00 64 61 74 61 2f 66 6f 6f 2e 69 00 36 34 0a 00 |.data/foo.i.64..|
-  0030: 01 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
+  0010: 00 00 00 00 01 2d 00 21 72 65 76 6c 6f 67 2d 63 |.....-.!revlog-c|
+  0020: 6f 6d 70 72 65 73 73 69 6f 6e 2d 7a 73 74 64 2c |ompression-zstd,|
+  0030: 72 65 76 6c 6f 67 76 31 00 64 61 74 61 2f 66 6f |revlogv1.data/fo|
 
   $ hg debugbundle --spec packednongd.hg
-  none-packed1;requirements%3Drevlogv1
+  none-packed1;requirements%3Drevlog-compression-zstd%2Crevlogv1
 
 
 #endif
@@ -427,7 +427,7 @@
   $ hg -R testsecret debugcreatestreamclonebundle packedsecret.hg
   (warning: stream clone bundle will contain secret revisions)
   writing 301 bytes for 3 files
-  bundle requirements: generaldelta, persistent-nodemap, revlogv1, sparserevlog
+  bundle requirements: generaldelta, persistent-nodemap, revlog-compression-zstd, revlogv1, sparserevlog
 
 #endif
 
@@ -436,7 +436,7 @@
   $ hg -R testsecret debugcreatestreamclonebundle packedsecret.hg
   (warning: stream clone bundle will contain secret revisions)
   writing 301 bytes for 3 files
-  bundle requirements: generaldelta, revlogv1, sparserevlog
+  bundle requirements: generaldelta, revlog-compression-zstd, revlogv1, sparserevlog
 
 #endif
 
--- a/tests/test-clonebundles.t	Tue Jan 18 20:35:04 2022 +0100
+++ b/tests/test-clonebundles.t	Mon Jan 24 12:44:20 2022 +0100
@@ -279,8 +279,9 @@
 
   $ hg -R server debugcreatestreamclonebundle packed.hg
   writing 613 bytes for 4 files
-  bundle requirements: generaldelta, revlogv1, sparserevlog (no-rust !)
-  bundle requirements: generaldelta, persistent-nodemap, revlogv1, sparserevlog (rust !)
+  bundle requirements: generaldelta, revlogv1, sparserevlog (no-rust no-zstd !)
+  bundle requirements: generaldelta, revlog-compression-zstd, revlogv1, sparserevlog (no-rust zstd !)
+  bundle requirements: generaldelta, persistent-nodemap, revlog-compression-zstd, revlogv1, sparserevlog (rust !)
 
 No bundle spec should work
 
--- a/tests/test-debugcommands.t	Tue Jan 18 20:35:04 2022 +0100
+++ b/tests/test-debugcommands.t	Mon Jan 24 12:44:20 2022 +0100
@@ -657,8 +657,8 @@
   devel-peer-request:   pairs: 81 bytes
   sending hello command
   sending between command
-  remote: 463
-  remote: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,persistent-nodemap,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  remote: 487
+  remote: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,persistent-nodemap,revlog-compression-zstd,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   remote: 1
   devel-peer-request: protocaps
   devel-peer-request:   caps: * bytes (glob)
@@ -677,8 +677,8 @@
   devel-peer-request:   pairs: 81 bytes
   sending hello command
   sending between command
-  remote: 444
-  remote: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  remote: 468
+  remote: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlog-compression-zstd,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   remote: 1
   devel-peer-request: protocaps
   devel-peer-request:   caps: * bytes (glob)
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