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view tests/test-convert-cvs-synthetic.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 | 96529f81e2e9 |
children | e5e5ee2b60e4 |
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#require cvs112 This feature requires use of builtin cvsps! $ echo "[extensions]" >> $HGRCPATH $ echo "convert = " >> $HGRCPATH create cvs repository with one project $ mkdir cvsrepo $ cd cvsrepo $ CVSROOT=`pwd` $ export CVSROOT $ CVS_OPTIONS=-f $ export CVS_OPTIONS $ cd .. $ rmdir cvsrepo $ cvscall() > { > cvs -f "$@" > } output of 'cvs ci' varies unpredictably, so just discard it $ cvsci() > { > sleep 1 > cvs -f ci "$@" >/dev/null > } $ cvscall -d "$CVSROOT" init $ mkdir cvsrepo/proj $ cvscall -q co proj create file1 on the trunk $ cd proj $ touch file1 $ cvscall -Q add file1 $ cvsci -m"add file1 on trunk" file1 create two branches $ cvscall -q tag -b v1_0 T file1 $ cvscall -q tag -b v1_1 T file1 create file2 on branch v1_0 $ cvscall -Q up -rv1_0 $ touch file2 $ cvscall -Q add file2 $ cvsci -m"add file2" file2 create file3, file4 on branch v1_1 $ cvscall -Q up -rv1_1 $ touch file3 $ touch file4 $ cvscall -Q add file3 file4 $ cvsci -m"add file3, file4 on branch v1_1" file3 file4 merge file2 from v1_0 to v1_1 $ cvscall -Q up -jv1_0 $ cvsci -m"MERGE from v1_0: add file2" cvs commit: Examining . Step things up a notch: now we make the history really hairy, with changes bouncing back and forth between trunk and v1_2 and merges going both ways. (I.e., try to model the real world.) create branch v1_2 $ cvscall -Q up -A $ cvscall -q tag -b v1_2 T file1 create file5 on branch v1_2 $ cvscall -Q up -rv1_2 $ touch file5 $ cvs -Q add file5 $ cvsci -m"add file5 on v1_2" cvs commit: Examining . create file6 on trunk post-v1_2 $ cvscall -Q up -A $ touch file6 $ cvscall -Q add file6 $ cvsci -m"add file6 on trunk post-v1_2" cvs commit: Examining . merge file5 from v1_2 to trunk $ cvscall -Q up -A $ cvscall -Q up -jv1_2 file5 $ cvsci -m"MERGE from v1_2: add file5" cvs commit: Examining . merge file6 from trunk to v1_2 $ cvscall -Q up -rv1_2 $ cvscall up -jHEAD file6 U file6 $ cvsci -m"MERGE from HEAD: add file6" cvs commit: Examining . cvs rlog output $ cvscall -q rlog proj | egrep '^(RCS file|revision)' RCS file: $TESTTMP/cvsrepo/proj/file1,v revision 1.1 RCS file: $TESTTMP/cvsrepo/proj/Attic/file2,v revision 1.1 revision 1.1.4.2 revision 1.1.4.1 revision 1.1.2.1 RCS file: $TESTTMP/cvsrepo/proj/Attic/file3,v revision 1.1 revision 1.1.2.1 RCS file: $TESTTMP/cvsrepo/proj/Attic/file4,v revision 1.1 revision 1.1.2.1 RCS file: $TESTTMP/cvsrepo/proj/file5,v revision 1.2 revision 1.1 revision 1.1.2.1 RCS file: $TESTTMP/cvsrepo/proj/file6,v revision 1.1 revision 1.1.2.2 revision 1.1.2.1 convert to hg (#1) $ cd .. $ hg convert --datesort proj proj.hg initializing destination proj.hg repository connecting to $TESTTMP/cvsrepo scanning source... collecting CVS rlog 15 log entries creating changesets 9 changeset entries sorting... converting... 8 add file1 on trunk 7 add file2 6 MERGE from v1_0: add file2 5 file file3 was initially added on branch v1_1. 4 add file3, file4 on branch v1_1 3 add file5 on v1_2 2 add file6 on trunk post-v1_2 1 MERGE from HEAD: add file6 0 MERGE from v1_2: add file5 hg log -G output (#1) $ hg -R proj.hg log -G --template "{rev} {desc}\n" o 8 MERGE from v1_2: add file5 | | o 7 MERGE from HEAD: add file6 | | o | 6 add file6 on trunk post-v1_2 | | | o 5 add file5 on v1_2 | | | | o 4 add file3, file4 on branch v1_1 | | | o | | 3 file file3 was initially added on branch v1_1. |/ / | o 2 MERGE from v1_0: add file2 |/ | o 1 add file2 |/ o 0 add file1 on trunk convert to hg (#2: with merge detection) $ hg convert \ > --config convert.cvsps.mergefrom='"^MERGE from (\S+):"' \ > --datesort \ > proj proj.hg2 initializing destination proj.hg2 repository connecting to $TESTTMP/cvsrepo scanning source... collecting CVS rlog 15 log entries creating changesets 9 changeset entries sorting... converting... 8 add file1 on trunk 7 add file2 6 MERGE from v1_0: add file2 5 file file3 was initially added on branch v1_1. 4 add file3, file4 on branch v1_1 3 add file5 on v1_2 2 add file6 on trunk post-v1_2 1 MERGE from HEAD: add file6 0 MERGE from v1_2: add file5 hg log -G output (#2) $ hg -R proj.hg2 log -G --template "{rev} {desc}\n" o 8 MERGE from v1_2: add file5 | | o 7 MERGE from HEAD: add file6 | | o | 6 add file6 on trunk post-v1_2 | | | o 5 add file5 on v1_2 | | | | o 4 add file3, file4 on branch v1_1 | | | o | | 3 file file3 was initially added on branch v1_1. |/ / | o 2 MERGE from v1_0: add file2 |/ | o 1 add file2 |/ o 0 add file1 on trunk