diff --git a/tests/test-largefiles-misc.t b/tests/test-largefiles-misc.t
--- a/tests/test-largefiles-misc.t
+++ b/tests/test-largefiles-misc.t
@@ -267,7 +267,7 @@
   getting changed largefiles
   1 largefiles updated, 0 removed
   3 files updated, 0 files merged, 0 files removed, 0 files unresolved
-  $ grep largefiles ../shared_lfrepo/.hg/requires
+  $ hg debugrequires -R ../shared_lfrepo | grep largefiles
   largefiles
 
 verify that large files in subrepos handled properly
diff --git a/tests/test-lfs-serve.t b/tests/test-lfs-serve.t
--- a/tests/test-lfs-serve.t
+++ b/tests/test-lfs-serve.t
@@ -34,6 +34,7 @@
 
   $ hg init server
   $ SERVER_REQUIRES="$TESTTMP/server/.hg/requires"
+  $ SERVER_PATH="$TESTTMP/server/"
 
   $ cat > $TESTTMP/debugprocessors.py <<EOF
   > from mercurial import (
@@ -85,7 +86,9 @@
 
   $ cat hg.pid >> $DAEMON_PIDS
   $ hg clone -q http://localhost:$HGPORT client
-  $ grep 'lfs' client/.hg/requires $SERVER_REQUIRES
+  $ hg debugrequires -R client | grep 'lfs'
+  [1]
+  $ hg debugrequires -R $SERVER_PATH | grep 'lfs'
   [1]
 
 This trivial repo will force commandserver to load the extension, but not call
@@ -129,24 +132,27 @@
   +non-lfs
   *** runcommand debugupgraderepo -q --run
 
-  $ grep 'lfs' .hg/requires $SERVER_REQUIRES
+  $ hg debugrequires -R $SERVER_PATH | grep 'lfs'
   [1]
 
 #if lfsremote-on
 
   $ hg push -q
-  $ grep 'lfs' .hg/requires $SERVER_REQUIRES
+  $ hg debugrequires -R $SERVER_PATH | grep 'lfs'
   [1]
 
   $ hg clone -q http://localhost:$HGPORT $TESTTMP/client1_clone
-  $ grep 'lfs' $TESTTMP/client1_clone/.hg/requires $SERVER_REQUIRES
+  $ hg debugrequires -R $TESTTMP/client1_clone/ | grep 'lfs'
+  [1]
+  $ hg debugrequires -R $SERVER_PATH | grep 'lfs'
   [1]
 
   $ hg init $TESTTMP/client1_pull
   $ hg -R $TESTTMP/client1_pull pull -q http://localhost:$HGPORT
-  $ grep 'lfs' $TESTTMP/client1_pull/.hg/requires $SERVER_REQUIRES
+  $ hg debugrequires -R $TESTTMP/client1_pull/ | grep 'lfs'
   [1]
-
+  $ hg debugrequires -R $SERVER_PATH | grep 'lfs'
+  [1]
   $ hg identify http://localhost:$HGPORT
   d437e1d24fbd
 
@@ -167,16 +173,22 @@
 extension is not enabled remotely.
 
   $ hg push -q
-  $ grep 'lfs' .hg/requires $SERVER_REQUIRES
+  $ hg debugrequires | grep 'lfs'
+  [1]
+  $ hg debugrequires -R $SERVER_PATH | grep 'lfs'
   [1]
 
   $ hg clone -q http://localhost:$HGPORT $TESTTMP/client2_clone
-  $ grep 'lfs' $TESTTMP/client2_clone/.hg/requires $SERVER_REQUIRES
+  $ hg debugrequires -R $TESTTMP/client2_clone/ | grep 'lfs'
+  [1]
+  $ hg debugrequires -R $SERVER_PATH | grep 'lfs'
   [1]
 
   $ hg init $TESTTMP/client2_pull
   $ hg -R $TESTTMP/client2_pull pull -q http://localhost:$HGPORT
-  $ grep 'lfs' $TESTTMP/client2_pull/.hg/requires $SERVER_REQUIRES
+  $ hg debugrequires -R $TESTTMP/client2_pull/ | grep 'lfs'
+  [1]
+  $ hg debugrequires -R $SERVER_PATH | grep 'lfs'
   [1]
 
   $ hg identify http://localhost:$HGPORT
@@ -189,8 +201,10 @@
 
   $ echo 'this is a big lfs file' > lfs.bin
   $ hg ci -Aqm 'lfs'
-  $ grep 'lfs' .hg/requires $SERVER_REQUIRES
-  .hg/requires:lfs
+  $ hg debugrequires | grep 'lfs'
+  lfs
+  $ hg debugrequires -R $SERVER_PATH | grep 'lfs'
+  [1]
 
 #if lfsremote-off
   $ hg push -q
@@ -200,20 +214,24 @@
 #else
   $ hg push -q
 #endif
-  $ grep 'lfs' .hg/requires $SERVER_REQUIRES
-  .hg/requires:lfs
-  $TESTTMP/server/.hg/requires:lfs (lfsremote-on !)
+  $ hg debugrequires | grep 'lfs'
+  lfs
+  $ hg debugrequires -R $SERVER_PATH | grep 'lfs' || true
+  lfs (lfsremote-on !)
 
   $ hg clone -q http://localhost:$HGPORT $TESTTMP/client3_clone
-  $ grep 'lfs' $TESTTMP/client3_clone/.hg/requires $SERVER_REQUIRES || true
-  $TESTTMP/client3_clone/.hg/requires:lfs (lfsremote-on !)
-  $TESTTMP/server/.hg/requires:lfs (lfsremote-on !)
+
+  $ hg debugrequires -R $TESTTMP/client3_clone/ | grep 'lfs' || true
+  lfs (lfsremote-on !)
+  $ hg debugrequires -R $SERVER_PATH | grep 'lfs' || true
+  lfs (lfsremote-on !)
 
   $ hg init $TESTTMP/client3_pull
   $ hg -R $TESTTMP/client3_pull pull -q http://localhost:$HGPORT
-  $ grep 'lfs' $TESTTMP/client3_pull/.hg/requires $SERVER_REQUIRES || true
-  $TESTTMP/client3_pull/.hg/requires:lfs (lfsremote-on !)
-  $TESTTMP/server/.hg/requires:lfs (lfsremote-on !)
+  $ hg debugrequires -R $TESTTMP/client3_pull/ | grep 'lfs' || true
+  lfs (lfsremote-on !)
+  $ hg debugrequires -R $SERVER_PATH | grep 'lfs' || true
+  lfs (lfsremote-on !)
 
 Test that the commit/changegroup requirement check hook can be run multiple
 times.
@@ -267,23 +285,24 @@
   > EOF
   $ echo 'non-lfs' > nonlfs2.txt
   $ hg ci -Aqm 'non-lfs'
-  $ grep 'lfs' .hg/requires $SERVER_REQUIRES
-  $TESTTMP/server/.hg/requires:lfs
+  $ hg debugrequires -R $SERVER_PATH --config extensions.lfs= | grep 'lfs'
+  lfs
 
   $ hg push -q --force
   warning: repository is unrelated
-  $ grep 'lfs' .hg/requires $SERVER_REQUIRES
-  $TESTTMP/server/.hg/requires:lfs
+  $ hg debugrequires -R $SERVER_PATH --config extensions.lfs= | grep 'lfs'
+  lfs
 
   $ hg clone http://localhost:$HGPORT $TESTTMP/client4_clone
   (remote is using large file support (lfs), but it is explicitly disabled in the local configuration)
   abort: repository requires features unknown to this Mercurial: lfs
   (see https://mercurial-scm.org/wiki/MissingRequirement for more information)
   [255]
-  $ grep 'lfs' $TESTTMP/client4_clone/.hg/requires $SERVER_REQUIRES
-  grep: $TESTTMP/client4_clone/.hg/requires: $ENOENT$
-  $TESTTMP/server/.hg/requires:lfs
-  [2]
+  $ hg debugrequires -R $TESTTMP/client4_clone/ | grep 'lfs'
+  abort: repository $TESTTMP/client4_clone/ not found
+  [1]
+  $ hg debugrequires -R $SERVER_PATH --config extensions.lfs= | grep 'lfs'
+  lfs
 
 TODO: fail more gracefully.
 
@@ -294,8 +313,10 @@
   remote: abort: no common changegroup version
   abort: pull failed on remote
   [100]
-  $ grep 'lfs' $TESTTMP/client4_pull/.hg/requires $SERVER_REQUIRES
-  $TESTTMP/server/.hg/requires:lfs
+  $ hg debugrequires -R $TESTTMP/client4_pull/ | grep 'lfs'
+  [1]
+  $ hg debugrequires -R $SERVER_PATH --config extensions.lfs= | grep 'lfs'
+  lfs
 
   $ hg identify http://localhost:$HGPORT
   03b080fa9d93
@@ -312,19 +333,21 @@
   $ hg ci -Aqm 'non-lfs file with lfs client'
 
   $ hg push -q
-  $ grep 'lfs' .hg/requires $SERVER_REQUIRES
-  $TESTTMP/server/.hg/requires:lfs
+  $ hg debugrequires -R $SERVER_PATH | grep 'lfs'
+  lfs
 
   $ hg clone -q http://localhost:$HGPORT $TESTTMP/client5_clone
-  $ grep 'lfs' $TESTTMP/client5_clone/.hg/requires $SERVER_REQUIRES
-  $TESTTMP/client5_clone/.hg/requires:lfs
-  $TESTTMP/server/.hg/requires:lfs
+  $ hg debugrequires -R $TESTTMP/client5_clone/ | grep 'lfs'
+  lfs
+  $ hg debugrequires -R $SERVER_PATH | grep 'lfs'
+  lfs
 
   $ hg init $TESTTMP/client5_pull
   $ hg -R $TESTTMP/client5_pull pull -q http://localhost:$HGPORT
-  $ grep 'lfs' $TESTTMP/client5_pull/.hg/requires $SERVER_REQUIRES
-  $TESTTMP/client5_pull/.hg/requires:lfs
-  $TESTTMP/server/.hg/requires:lfs
+  $ hg debugrequires -R $TESTTMP/client5_pull/ | grep 'lfs'
+  lfs
+  $ hg debugrequires -R $SERVER_PATH | grep 'lfs'
+  lfs
 
   $ hg identify http://localhost:$HGPORT
   c729025cc5e3
@@ -463,14 +486,16 @@
   remote: adding file changes
   remote: added 1 changesets with 1 changes to 1 files
   (sent 8 HTTP requests and * bytes; received * bytes in responses) (glob) (?)
-  $ grep 'lfs' .hg/requires $SERVER_REQUIRES
-  .hg/requires:lfs
-  $TESTTMP/server/.hg/requires:lfs
+  $ hg debugrequires | grep lfs
+  lfs
+  $ hg debugrequires -R $SERVER_PATH | grep lfs
+  lfs
 
   $ hg clone -q http://localhost:$HGPORT $TESTTMP/client6_clone
-  $ grep 'lfs' $TESTTMP/client6_clone/.hg/requires $SERVER_REQUIRES
-  $TESTTMP/client6_clone/.hg/requires:lfs
-  $TESTTMP/server/.hg/requires:lfs
+  $ hg debugrequires -R $TESTTMP/client6_clone/ | grep lfs
+  lfs
+  $ hg debugrequires -R $SERVER_PATH | grep lfs
+  lfs
 
   $ hg init $TESTTMP/client6_pull
   $ hg -R $TESTTMP/client6_pull pull -u -v http://localhost:$HGPORT
@@ -495,9 +520,10 @@
   updated to "d3b84d50eacb: lfs file with lfs client"
   1 other heads for branch "default"
   (sent 3 HTTP requests and * bytes; received * bytes in responses) (glob)
-  $ grep 'lfs' $TESTTMP/client6_pull/.hg/requires $SERVER_REQUIRES
-  $TESTTMP/client6_pull/.hg/requires:lfs
-  $TESTTMP/server/.hg/requires:lfs
+  $ hg debugrequires -R $TESTTMP/client6_pull/ | grep lfs
+  lfs
+  $ hg debugrequires -R $SERVER_PATH | grep lfs
+  lfs
 
   $ hg identify http://localhost:$HGPORT
   d3b84d50eacb
diff --git a/tests/test-lfs.t b/tests/test-lfs.t
--- a/tests/test-lfs.t
+++ b/tests/test-lfs.t
@@ -75,10 +75,10 @@
 
 # Commit large file
   $ echo $LONG > largefile
-  $ grep lfs .hg/requires
+  $ hg debugrequires | grep lfs
   [1]
   $ hg commit --traceback -Aqm "add large file"
-  $ grep lfs .hg/requires
+  $ hg debugrequires | grep lfs
   lfs
 
 # Ensure metadata is stored
@@ -114,7 +114,7 @@
 Push to a local non-lfs repo with the extension enabled will add the
 lfs requirement
 
-  $ grep lfs $TESTTMP/server/.hg/requires
+  $ hg debugrequires -R $TESTTMP/server/ | grep lfs
   [1]
   $ hg push -v | egrep -v '^(uncompressed| )'
   pushing to $TESTTMP/server
@@ -126,7 +126,7 @@
   adding file changes
   calling hook pretxnchangegroup.lfs: hgext.lfs.checkrequireslfs
   added 2 changesets with 3 changes to 3 files
-  $ grep lfs $TESTTMP/server/.hg/requires
+  $ hg debugrequires -R $TESTTMP/server/ | grep lfs
   lfs
 
 # Unknown URL scheme
@@ -150,8 +150,9 @@
 Pulling a local lfs repo into a local non-lfs repo with the extension
 enabled adds the lfs requirement
 
-  $ grep lfs .hg/requires $TESTTMP/server/.hg/requires
-  $TESTTMP/server/.hg/requires:lfs
+  $ hg debugrequires | grep lfs || true
+  $ hg debugrequires -R $TESTTMP/server/ | grep lfs
+  lfs
   $ hg pull default
   pulling from $TESTTMP/server
   requesting all changes
@@ -161,9 +162,10 @@
   added 2 changesets with 3 changes to 3 files
   new changesets 0ead593177f7:b88141481348
   (run 'hg update' to get a working copy)
-  $ grep lfs .hg/requires $TESTTMP/server/.hg/requires
-  .hg/requires:lfs
-  $TESTTMP/server/.hg/requires:lfs
+  $ hg debugrequires | grep lfs
+  lfs
+  $ hg debugrequires -R $TESTTMP/server/ | grep lfs
+  lfs
 
 # Check the blobstore is not yet populated
   $ [ -d .hg/store/lfs/objects ]
@@ -314,7 +316,7 @@
   $ hg --config extensions.share= share repo7 sharedrepo
   updating working directory
   2 files updated, 0 files merged, 0 files removed, 0 files unresolved
-  $ grep lfs sharedrepo/.hg/requires
+  $ hg debugrequires -R sharedrepo/ | grep lfs
   lfs
 
 # Test rename and status
@@ -1002,7 +1004,7 @@
   2 a
   1 b
   0 meta
-  $ grep 'lfs' convert_normal/.hg/requires
+  $ hg debugrequires -R convert_normal | grep 'lfs'
   [1]
   $ hg --cwd convert_normal cat a1 -r 0 -T '{rawdata}'
   THIS-IS-LFS-BECAUSE-10-BYTES
@@ -1044,7 +1046,7 @@
   1: a2: 5bb8341bee63b3649f222b2215bde37322bea075a30575aa685d8f8d21c77024
   2: a2: 876dadc86a8542f9798048f2c47f51dbf8e4359aed883e8ec80c5db825f0d943
 
-  $ grep 'lfs' convert_lfs/.hg/requires
+  $ hg debugrequires -R convert_lfs | grep 'lfs'
   lfs
 
 The hashes in all stages of the conversion are unchanged.
@@ -1075,7 +1077,7 @@
   2 large to small, small to large
   1 random modifications
   0 switch large and small again
-  $ grep 'lfs' convert_normal2/.hg/requires
+  $ hg debugrequires -R convert_normal2 | grep 'lfs'
   [1]
   $ hg --cwd convert_normal2 debugdata large 0
   LONGER-THAN-TEN-BYTES-WILL-TRIGGER-LFS
@@ -1091,7 +1093,7 @@
   2 large to small, small to large
   1 random modifications
   0 switch large and small again
-  $ grep 'lfs' convert_lfs2/.hg/requires
+  $ hg debugrequires -R convert_lfs2 | grep 'lfs'
   lfs
   $ hg --cwd convert_lfs2 debugdata large 0
   version https://git-lfs.github.com/spec/v1
@@ -1202,10 +1204,10 @@
   $ hg bundle -R convert_lfs2 -qr tip --base null lfs.hg
   $ hg init unbundle
   $ hg pull -R unbundle -q nolfs.hg
-  $ grep lfs unbundle/.hg/requires
+  $ hg debugrequires -R unbundle | grep lfs
   [1]
   $ hg pull -R unbundle -q lfs.hg
-  $ grep lfs unbundle/.hg/requires
+  $ hg debugrequires -R unbundle | grep lfs
   lfs
 
   $ hg init no_lfs
@@ -1224,7 +1226,7 @@
   pushing to no_lfs
   abort: required features are not supported in the destination: lfs
   [255]
-  $ grep lfs no_lfs/.hg/requires
+  $ hg debugrequires -R no_lfs/ | grep lfs
   [1]
 
 Pulling from a local lfs repo to a local repo without an lfs requirement and
@@ -1234,5 +1236,5 @@
   pulling from convert_lfs2
   abort: required features are not supported in the destination: lfs
   [255]
-  $ grep lfs no_lfs2/.hg/requires
+  $ hg debugrequires -R no_lfs2/ | grep lfs
   [1]
diff --git a/tests/test-rebase-scenario-global.t b/tests/test-rebase-scenario-global.t
--- a/tests/test-rebase-scenario-global.t
+++ b/tests/test-rebase-scenario-global.t
@@ -380,7 +380,7 @@
 
   $ hg --config format.usegeneraldelta=no init issue5678
   $ cd issue5678
-  $ grep generaldelta .hg/requires
+  $ hg debugrequires | grep generaldelta
   [1]
   $ echo a > a
   $ hg ci -Aqm a
diff --git a/tests/test-remotefilelog-bundle2-legacy.t b/tests/test-remotefilelog-bundle2-legacy.t
--- a/tests/test-remotefilelog-bundle2-legacy.t
+++ b/tests/test-remotefilelog-bundle2-legacy.t
@@ -40,7 +40,7 @@
   > EOF
 
   $ hg init master
-  $ grep generaldelta master/.hg/requires
+  $ hg debugrequires -R master | grep generaldelta
   generaldelta
   $ cd master
 preferuncompressed = False so that we can make both generaldelta and non-generaldelta clones
diff --git a/tests/test-remotefilelog-bundle2.t b/tests/test-remotefilelog-bundle2.t
--- a/tests/test-remotefilelog-bundle2.t
+++ b/tests/test-remotefilelog-bundle2.t
@@ -3,7 +3,7 @@
   $ . "$TESTDIR/remotefilelog-library.sh"
 
   $ hg init master
-  $ grep generaldelta master/.hg/requires
+  $ hg debugrequires -R master | grep generaldelta
   generaldelta
   $ cd master
 preferuncompressed = False so that we can make both generaldelta and non-generaldelta clones
@@ -22,10 +22,10 @@
 
   $ hgcloneshallow ssh://user@dummy/master shallow-generaldelta -q --pull --config experimental.bundle2-exp=True
   1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over *s (glob)
-  $ grep generaldelta shallow-generaldelta/.hg/requires
+  $ hg debugrequires -R shallow-generaldelta/ | grep generaldelta
   generaldelta
   $ hgcloneshallow ssh://user@dummy/master shallow-plain -q --pull --config format.usegeneraldelta=False --config format.generaldelta=False --config experimental.bundle2-exp=True
-  $ grep generaldelta shallow-plain/.hg/requires
+  $ hg debugrequires -R shallow-plain/ | grep generaldelta
   [1]
 
   $ cd master
diff --git a/tests/test-share.t b/tests/test-share.t
--- a/tests/test-share.t
+++ b/tests/test-share.t
@@ -173,7 +173,7 @@
   $ test -d .hg/store
   $ test -f .hg/sharedpath
   [1]
-  $ grep shared .hg/requires
+  $ hg debugrequires | grep shared
   [1]
   $ hg unshare
   abort: this is not a shared repo
@@ -208,10 +208,11 @@
   $ hg share -U --relative thisdir/abs thisdir/rel
   $ cat thisdir/rel/.hg/sharedpath
   ../../orig/.hg (no-eol)
-  $ grep shared thisdir/*/.hg/requires
-  thisdir/abs/.hg/requires:shared
-  thisdir/rel/.hg/requires:relshared
-  thisdir/rel/.hg/requires:shared
+  $ hg debugrequires -R thisdir/abs/ | grep shared
+  shared
+  $ hg debugrequires -R thisdir/rel/ | grep shared
+  relshared
+  shared
 
 test that relative shared paths aren't relative to $PWD
 
@@ -241,7 +242,7 @@
   $ test -d .hg/store
   $ test -f .hg/sharedpath
   [1]
-  $ grep shared .hg/requires
+  $ hg debugrequires | grep shared
   [1]
   $ hg unshare
   abort: this is not a shared repo
diff --git a/tests/test-subrepo-deep-nested-change.t b/tests/test-subrepo-deep-nested-change.t
--- a/tests/test-subrepo-deep-nested-change.t
+++ b/tests/test-subrepo-deep-nested-change.t
@@ -192,7 +192,7 @@
   3 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
 Largefiles is NOT enabled in the clone if the source repo doesn't require it
-  $ grep largefiles cloned/.hg/hgrc
+  $ hg debugrequires -R cloned | grep largefiles
   [1]
 
 Checking cloned repo ids
@@ -776,7 +776,7 @@
   extensions.largefiles=
 
   $ hg --config extensions.largefiles= clone -qU . ../lfclone
-  $ grep largefiles ../lfclone/.hg/requires
+  $ hg debugrequires -R ../lfclone | grep largefiles
   largefiles
 
 Find an exact match to a standin (should archive nothing)
diff --git a/tests/test-upgrade-repo.t b/tests/test-upgrade-repo.t
--- a/tests/test-upgrade-repo.t
+++ b/tests/test-upgrade-repo.t
@@ -1189,7 +1189,7 @@
   $ echo '123456789012345' > lfs.bin
   $ hg ci -Am 'lfs.bin'
   adding lfs.bin
-  $ grep lfs .hg/requires
+  $ hg debugrequires | grep lfs
   lfs
   $ find .hg/store/lfs -type f
   .hg/store/lfs/objects/d0/beab232adff5ba365880366ad30b1edb85c4c5372442b5d2fe27adc96d653f
@@ -1197,7 +1197,7 @@
   $ hg debugupgraderepo --run
   nothing to do
 
-  $ grep lfs .hg/requires
+  $ hg debugrequires | grep lfs
   lfs
   $ find .hg/store/lfs -type f
   .hg/store/lfs/objects/d0/beab232adff5ba365880366ad30b1edb85c4c5372442b5d2fe27adc96d653f