upstream/mercurial-mirror Files · tests/test-remotefilelog-bundle2-legacy.t

posix: always seek to EOF when opening a file in append mode...

posix: always seek to EOF when opening a file in append mode Python 3 already does this, so skip it there. Consider the program: #include <stdio.h> int main() { FILE *f = fopen("narf", "w"); fprintf(f, "narf\n"); fclose(f); f = fopen("narf", "a"); printf("%ld\n", ftell(f)); fprintf(f, "troz\n"); printf("%ld\n", ftell(f)); return 0; } on macOS, FreeBSD, and Linux with glibc, this program prints 5 10 but on musl libc (Alpine Linux and probably others) this prints 0 10 By my reading of https://pubs.opengroup.org/onlinepubs/009695399/functions/fopen.html this is technically correct, specifically: > Opening a file with append mode (a as the first character in the > mode argument) shall cause all subsequent writes to the file to be > forced to the then current end-of-file, regardless of intervening > calls to fseek(). in other words, the file position doesn't really matter in append-mode files, and we can't depend on it being at all meaningful unless we perform a seek() before tell() after open(..., 'a'). Experimentally after a .write() we can do a .tell() and it'll always be reasonable, but I'm unclear from reading the specification if that's a smart thing to rely on. This matches what we do on Windows and what Python 3 does for free, so let's just be consistent. Thanks to Yuya for the idea.

Matt Harbison - - Load All Authors

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        Matt Harbison
    
tests: disable remotefilelog on Windows...

              r40758
            
      #require no-windows

        Augie Fackler
    
remotefilelog: import pruned-down remotefilelog extension from hg-experimental...

              r40530
            
        $ . "$TESTDIR/remotefilelog-library.sh"

      generaldelta to generaldelta interactions with bundle2 but legacy clients

      without changegroup2 support

        $ cat > testcg2.py << EOF

        Augie Fackler
    
tests: fix up some import statements caught by Python 3...

              r40598
            
        > import sys

        Augie Fackler
    
remotefilelog: import pruned-down remotefilelog extension from hg-experimental...

              r40530
            
        > from mercurial import changegroup, registrar, util

        > cmdtable = {}

        > command = registrar.command(cmdtable)

        > @command('testcg2', norepo=True)

        > def testcg2(ui):

        >     if not util.safehasattr(changegroup, 'cg2packer'):

        >         sys.exit(80)

        > EOF

        $ cat >> $HGRCPATH << EOF

        > [extensions]

        > testcg2 = $TESTTMP/testcg2.py

        > EOF

        $ hg testcg2 || exit 80

        $ cat > disablecg2.py << EOF

        Augie Fackler
    
tests: fix up some import statements caught by Python 3...

              r40598
            
        > from mercurial import changegroup, error, util

        Augie Fackler
    
remotefilelog: import pruned-down remotefilelog extension from hg-experimental...

              r40530
            
        > deleted = False

        > def reposetup(ui, repo):

        >     global deleted

        >     if deleted:

        >         return

        >     packermap = changegroup._packermap

        >     # protect against future changes

        >     if len(packermap) != 3:

        >         raise error.Abort('packermap has %d versions, expected 3!' % len(packermap))

        >     for k in ['01', '02', '03']:

        >         if not packermap.get(k):

        >             raise error.Abort("packermap doesn't have key '%s'!" % k)

        > 

        >     del packermap['02']

        >     deleted = True

        > EOF

        Martin von Zweigbergk
    
tests: drop obsolete "hginit" alias in remotefilelog tests...

              r40605
            
        $ hg init master

        Augie Fackler
    
remotefilelog: import pruned-down remotefilelog extension from hg-experimental...

              r40530
            
        $ grep generaldelta master/.hg/requires

        generaldelta

        $ cd master

      preferuncompressed = False so that we can make both generaldelta and non-generaldelta clones

        $ cat >> .hg/hgrc <<EOF

        > [remotefilelog]

        > server=True

        > [experimental]

        > bundle2-exp = True

        > [server]

        > preferuncompressed = False

        > EOF

        $ echo x > x

        $ hg commit -qAm x

        $ cd ..

        $ hgcloneshallow ssh://user@dummy/master shallow -q --pull --config experimental.bundle2-exp=True

        1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over *s (glob)

        $ cd shallow

        $ cat >> .hg/hgrc << EOF

        > [extensions]

        > disablecg2 = $TESTTMP/disablecg2.py

        > EOF

        $ cd ../master

        $ echo y > y

        $ hg commit -qAm y

        $ cd ../shallow

        $ hg pull -u

        pulling from ssh://user@dummy/master

        searching for changes

        adding changesets

        adding manifests

        adding file changes

        added 1 changesets with 0 changes to 0 files

        new changesets d34c38483be9

        1 files updated, 0 files merged, 0 files removed, 0 files unresolved

        1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over *s (glob)

        $ echo a > a

        $ hg commit -qAm a

        $ hg push

        pushing to ssh://user@dummy/master

        searching for changes

        remote: adding changesets

        remote: adding manifests

        remote: adding file changes

        remote: added 1 changesets with 1 changes to 1 files

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Matt Harbison tests: disable remotefilelog on Windows...	r40758	#require no-windows

Augie Fackler remotefilelog: import pruned-down remotefilelog extension from hg-experimental...	r40530	$ . "$TESTDIR/remotefilelog-library.sh"

		generaldelta to generaldelta interactions with bundle2 but legacy clients
		without changegroup2 support
		$ cat > testcg2.py << EOF
Augie Fackler tests: fix up some import statements caught by Python 3...	r40598	> import sys
Augie Fackler remotefilelog: import pruned-down remotefilelog extension from hg-experimental...	r40530	> from mercurial import changegroup, registrar, util
		> cmdtable = {}
		> command = registrar.command(cmdtable)
		> @command('testcg2', norepo=True)
		> def testcg2(ui):
		> if not util.safehasattr(changegroup, 'cg2packer'):
		> sys.exit(80)
		> EOF
		$ cat >> $HGRCPATH << EOF
		> [extensions]
		> testcg2 = $TESTTMP/testcg2.py
		> EOF
		$ hg testcg2 \|\| exit 80

		$ cat > disablecg2.py << EOF
Augie Fackler tests: fix up some import statements caught by Python 3...	r40598	> from mercurial import changegroup, error, util
Augie Fackler remotefilelog: import pruned-down remotefilelog extension from hg-experimental...	r40530	> deleted = False
		> def reposetup(ui, repo):
		> global deleted
		> if deleted:
		> return
		> packermap = changegroup._packermap
		> # protect against future changes
		> if len(packermap) != 3:
		> raise error.Abort('packermap has %d versions, expected 3!' % len(packermap))
		> for k in ['01', '02', '03']:
		> if not packermap.get(k):
		> raise error.Abort("packermap doesn't have key '%s'!" % k)
		>
		> del packermap['02']
		> deleted = True
		> EOF

Martin von Zweigbergk tests: drop obsolete "hginit" alias in remotefilelog tests...	r40605	$ hg init master
Augie Fackler remotefilelog: import pruned-down remotefilelog extension from hg-experimental...	r40530	$ grep generaldelta master/.hg/requires
		generaldelta
		$ cd master
		preferuncompressed = False so that we can make both generaldelta and non-generaldelta clones
		$ cat >> .hg/hgrc <<EOF
		> [remotefilelog]
		> server=True
		> [experimental]
		> bundle2-exp = True
		> [server]
		> preferuncompressed = False
		> EOF
		$ echo x > x
		$ hg commit -qAm x

		$ cd ..

		$ hgcloneshallow ssh://user@dummy/master shallow -q --pull --config experimental.bundle2-exp=True
		1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over *s (glob)
		$ cd shallow
		$ cat >> .hg/hgrc << EOF
		> [extensions]
		> disablecg2 = $TESTTMP/disablecg2.py
		> EOF

		$ cd ../master
		$ echo y > y
		$ hg commit -qAm y

		$ cd ../shallow
		$ hg pull -u
		pulling from ssh://user@dummy/master
		searching for changes
		adding changesets
		adding manifests
		adding file changes
		added 1 changesets with 0 changes to 0 files
		new changesets d34c38483be9
		1 files updated, 0 files merged, 0 files removed, 0 files unresolved
		1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over *s (glob)

		$ echo a > a
		$ hg commit -qAm a
		$ hg push
		pushing to ssh://user@dummy/master
		searching for changes
		remote: adding changesets
		remote: adding manifests
		remote: adding file changes
		remote: added 1 changesets with 1 changes to 1 files