Mercurial > hg
view tests/pdiff @ 44667:b561f3a68e41 stable
discovery: avoid wrongly saying there are nothing to pull
We can get in a situation where a revision passed through `hg pull --rev REV`
are available on the server, but not a descendant of the advertised server
heads.
For example the server could lying be during heads advertisement, to hide some
pull request. Or obsolete/hidden content could be explicitly pulled.
So in this case the lookup associated to `REV` returned successfully, but the
normal discovery will find all advertised heads already known locally. This flip
a special boolean `anyinc` that will prevent any fetch attempt, preventing `REV`
to be pulled over.
We add three line of code to detect this case and make sure a pull actually
happens.
My main target is to make some third party extensions happy (I expect the
associated test to move upstream with the extension). However this fix already
make some of the `infinitepush` test happier.
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
---|---|
date | Mon, 06 Apr 2020 00:24:57 +0200 |
parents | a2b55ee62803 |
children |
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#!/bin/sh # Script to get stable diff output on any platform. # # Output of this script is almost equivalent to GNU diff with "-Nru". # # Use this script as "hg pdiff" via extdiff extension with preparation # below in test scripts: # # $ cat >> $HGRCPATH <<EOF # > [extdiff] # > pdiff = sh "$RUNTESTDIR/pdiff" # > EOF filediff(){ # USAGE: filediff file1 file2 [header] # compare with /dev/null if file doesn't exist (as "-N" option) file1="$1" if test ! -f "$file1"; then file1=/dev/null fi file2="$2" if test ! -f "$file2"; then file2=/dev/null fi if cmp -s "$file1" "$file2" 2> /dev/null; then # Return immediately, because comparison isn't needed. This # also avoids redundant message of diff like "No differences # encountered" (on Solaris) return fi if test -n "$3"; then # show header only in recursive case echo "$3" fi # replace "/dev/null" by corresponded filename (as "-N" option) diff -u "$file1" "$file2" | sed "s@^--- /dev/null\(.*\)\$@--- $1\1@" | sed "s@^\+\+\+ /dev/null\(.*\)\$@+++ $2\1@" # in this case, files differ from each other return 1 } if test -d "$1" -o -d "$2"; then # ensure comparison in dictionary order ( if test -d "$1"; then (cd "$1" && find . -type f); fi if test -d "$2"; then (cd "$2" && find . -type f); fi ) | sed 's@^\./@@g' | sort | uniq | while read file; do filediff "$1/$file" "$2/$file" "diff -Nru $1/$file $2/$file" done # TODO: there is no portable way for current while-read based # implementation to return 1 at detecting changes. # # On bash and dash, assignment to variable inside while-block # doesn't affect outside, because inside while-block is executed # in sub-shell. BTW, it affects outside while-block on ksh (as sh # on Solaris). else filediff "$1" "$2" fi