view tests/test-convert-tla.t @ 30152:d65e246100ed

help: backout f3c4edfd35e1 (mark boolean flags with [no-] in help) for now The ability to negate any boolean flags itself is great, but I think we are not ready to expose the help side of it yet. First, while there exist a handful of such flags whose default value can be changed (eg: git diff, patchwork confirmation), there is only a few of them. The users who benefit the most from this change are alias users and large installation that can deploy extension to change behavior (eg: facebook tweakdefault). So the majority of user who will be affected by a large change to command help that is not yet relevant to them. (I expect this to become relevant when ui.progressive start to exists). Below is an example of the impact of the new help on 'hg help diff': -r --rev REV [+] revision -c --change REV change made by revision -a --[no-]text treat all files as text -g --[no-]git use git extended diff format --[no-]nodates omit dates from diff headers --[no-]noprefix omit a/ and b/ prefixes from filenames -p --[no-]show-function show which function each change is in --[no-]reverse produce a diff that undoes the changes -w --[no-]ignore-all-space ignore white space when comparing lines -b --[no-]ignore-space-change ignore changes in the amount of white space -B --[no-]ignore-blank-lines ignore changes whose lines are all blank -U --unified NUM number of lines of context to show --[no-]stat output diffstat-style summary of changes --root DIR produce diffs relative to subdirectory -I --include PATTERN [+] include names matching the given patterns -X --exclude PATTERN [+] exclude names matching the given patterns -S --[no-]subrepos recurse into subrepositories Another issue with the current state of help, the default value for the flag is not conveyed to the user. For example in the 'backout' help, there is no real distinction between "--[no-]backup" (default to True) and "--[no-]keep" (default) to False: --[no-]backup no backups --[no-]keep do not modify working directory during strip In addition, I've discussed with Augie Fackler and the last batch of the work on this have burned him out quite some. Therefore he is not intending to perform any more work on this topic. Quoting him, he would rather see the help part backed out than spending more time on it. I do not think we are ready to expose this to users in 4.0 (freeze in a week), especially because we cannot expect quick improvement on these aspect as this topic no longer have an owner. We should be able to reintroduce that change in the future when someone get back on it and the main issues are solves: * Introduction of ui.progressive makes it relevant for a majority of user, * Current default value are efficiently conveyed to the user. (In addition, the excerpt from diff help show that we still have some issue with some negative option like '--nodates' so further improvement are probably welcome there.)
author Pierre-Yves David <pierre-yves.david@ens-lyon.org>
date Sun, 09 Oct 2016 03:11:18 +0200
parents 7a9cbb315d84
children 561a019c0268
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#require tla symlink

  $ tla my-id "mercurial <mercurial@selenic.com>"
  $ echo "[extensions]" >> $HGRCPATH
  $ echo "convert=" >> $HGRCPATH

create tla archive

  $ tla make-archive tla@mercurial--convert `pwd`/hg-test-convert-tla

initialize tla repo

  $ mkdir tla-repo
  $ cd tla-repo/
  $ tla init-tree tla@mercurial--convert/tla--test--0
  $ tla import
  * creating version tla@mercurial--convert/tla--test--0
  * imported tla@mercurial--convert/tla--test--0

create initial files

  $ echo 'this is a file' > a
  $ tla add a
  $ mkdir src
  $ tla add src
  $ cd src
  $ dd count=1 if=/dev/zero of=b > /dev/null 2> /dev/null
  $ tla add b
  $ tla commit -s "added a file, src and src/b (binary)"
  A/ .arch-ids
  A/ src
  A/ src/.arch-ids
  A  .arch-ids/a.id
  A  a
  A  src/.arch-ids/=id
  A  src/.arch-ids/b.id
  A  src/b
  * update pristine tree (tla@mercurial--convert/tla--test--0--base-0 => tla--test--0--patch-1)
  * committed tla@mercurial--convert/tla--test--0--patch-1

create link file and modify a

  $ ln -s ../a a-link
  $ tla add a-link
  $ echo 'this a modification to a' >> ../a
  $ tla commit -s "added link to a and modify a"
  A  src/.arch-ids/a-link.id
  A  src/a-link
  M  a
  * update pristine tree (tla@mercurial--convert/tla--test--0--patch-1 => tla--test--0--patch-2)
  * committed tla@mercurial--convert/tla--test--0--patch-2

create second link and modify b

  $ ln -s ../a a-link-2
  $ tla add a-link-2
  $ dd count=1 seek=1 if=/dev/zero of=b > /dev/null 2> /dev/null
  $ tla commit -s "added second link and modify b"
  A  src/.arch-ids/a-link-2.id
  A  src/a-link-2
  Mb src/b
  * update pristine tree (tla@mercurial--convert/tla--test--0--patch-2 => tla--test--0--patch-3)
  * committed tla@mercurial--convert/tla--test--0--patch-3

b file to link and a-link-2 to regular file

  $ rm -f a-link-2
  $ echo 'this is now a regular file' > a-link-2
  $ ln -sf ../a b
  $ tla commit -s "file to link and link to file test"
  fl src/b
  lf src/a-link-2
  * update pristine tree (tla@mercurial--convert/tla--test--0--patch-3 => tla--test--0--patch-4)
  * committed tla@mercurial--convert/tla--test--0--patch-4

move a-link-2 file and src directory

  $ cd ..
  $ tla mv src/a-link-2 c
  $ tla mv src test
  $ tla commit -s "move and rename a-link-2 file and src directory"
  D/ src/.arch-ids
  A/ test/.arch-ids
  /> src	test
  => src/.arch-ids/a-link-2.id	.arch-ids/c.id
  => src/a-link-2	c
  => src/.arch-ids/=id	test/.arch-ids/=id
  => src/.arch-ids/a-link.id	test/.arch-ids/a-link.id
  => src/.arch-ids/b.id	test/.arch-ids/b.id
  * update pristine tree (tla@mercurial--convert/tla--test--0--patch-4 => tla--test--0--patch-5)
  * committed tla@mercurial--convert/tla--test--0--patch-5
  $ cd ..

converting tla repo to Mercurial

  $ hg convert tla-repo tla-repo-hg
  initializing destination tla-repo-hg repository
  analyzing tree version tla@mercurial--convert/tla--test--0...
  scanning source...
  sorting...
  converting...
  5 initial import
  4 added a file, src and src/b (binary)
  3 added link to a and modify a
  2 added second link and modify b
  1 file to link and link to file test
  0 move and rename a-link-2 file and src directory
  $ tla register-archive -d tla@mercurial--convert
  $ glog()
  > {
  >     hg log -G --template '{rev} "{desc|firstline}" files: {files}\n' "$@"
  > }

show graph log

  $ glog -R tla-repo-hg
  o  5 "move and rename a-link-2 file and src directory" files: c src/a-link src/a-link-2 src/b test/a-link test/b
  |
  o  4 "file to link and link to file test" files: src/a-link-2 src/b
  |
  o  3 "added second link and modify b" files: src/a-link-2 src/b
  |
  o  2 "added link to a and modify a" files: a src/a-link
  |
  o  1 "added a file, src and src/b (binary)" files: a src/b
  |
  o  0 "initial import" files:
  
  $ hg up -q -R tla-repo-hg
  $ hg -R tla-repo-hg manifest --debug
  c4072c4b72e1cabace081888efa148ee80ca3cbb 644   a
  0201ac32a3a8e86e303dff60366382a54b48a72e 644   c
  c0067ba5ff0b7c9a3eb17270839d04614c435623 644 @ test/a-link
  375f4263d86feacdea7e3c27100abd1560f2a973 644 @ test/b