Mercurial > hg
view tests/test-merge-combination.t @ 44311:2b72c4ff8ed1
nodemap: use an intermediate "docket" file to carry small metadata
This intermediate file will make mmapping, transaction and content validation
easier. (Most of this usefulness will arrive gradually in later changeset). In
particular it will become very useful to append new data are the end of raw file
instead of rewriting on the file on each transaction.
See in code comments for details.
Differential Revision: https://phab.mercurial-scm.org/D7838
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Wed, 15 Jan 2020 15:47:50 +0100 |
parents | 302dbc9d52be |
children | 8045e4aa366b |
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This file shows what hg says are "modified" files for a merge commit (hg log -T {files}), somewhat exhaustively. It shows merges that involves files contents changing, and merges that involve executable bit changing, but not merges with multiple or zero merge ancestors, nor copies/renames, and nor identical file contents with different filelog revisions. genmerges is the workhorse. Given: - a range function describing the possible values for file a - a isgood function to filter out uninteresting combination - a createfile function to actually write the values for file a on the filesystem it print a series of lines that look like: abcd C: output of -T {files} describing the file a at respectively the base, p2, p1, merge revision. "C" indicates that hg merge had conflicts. $ genmerges () { > for base in `range` -; do > for r1 in `range $base` -; do > for r2 in `range $base $r1` -; do > for m in `range $base $r1 $r2` -; do > line="$base$r1$r2$m" > isgood $line || continue > hg init repo > cd repo > make_commit () { > v=$1; msg=$2; file=$3; > if [ $v != - ]; then > createfile $v > else > if [ -f a ] > then rm a > else touch $file > fi > fi > hg commit -q -Am $msg || exit 123 > } > echo foo > foo > make_commit $base base b > make_commit $r1 r1 c > hg up -r 0 -q > make_commit $r2 r2 d > hg merge -q -r 1 > ../output 2>&1 > if [ $? -ne 0 ]; then rm -f *.orig; hg resolve -m --all -q; fi > if [ -s ../output ]; then conflicts=" C"; else conflicts=" "; fi > make_commit $m m e > if [ $m = $r1 ] && [ $m = $r2 ] > then expected= > elif [ $m = $r1 ] > then if [ $base = $r2 ] > then expected= > else expected=a > fi > elif [ $m = $r2 ] > then if [ $base = $r1 ] > then expected= > else expected=a > fi > else expected=a > fi > got=`hg log -r 3 --template '{files}\n' | tr -d 'e '` > if [ "$got" = "$expected" ] > then echo "$line$conflicts: agree on \"$got\"" > else echo "$line$conflicts: hg said \"$got\", expected \"$expected\"" > fi > cd ../ > rm -rf repo > done > done > done > done > } All the merges of various file contents. $ range () { > max=0 > for i in $@; do > if [ $i = - ]; then continue; fi > if [ $i -gt $max ]; then max=$i; fi > done > $TESTDIR/seq.py `expr $max + 1` > } $ isgood () { true; } $ createfile () { > if [ -f a ] && [ "`cat a`" = $1 ] > then touch $file > else echo $v > a > fi > } $ genmerges 1111 : agree on "" 1112 : agree on "a" 111- : agree on "a" 1121 : agree on "a" 1122 : agree on "" 1123 : agree on "a" 112- : agree on "a" 11-1 : hg said "", expected "a" 11-2 : agree on "a" 11-- : agree on "" 1211 : agree on "a" 1212 : agree on "" 1213 : agree on "a" 121- : agree on "a" 1221 : agree on "a" 1222 : agree on "" 1223 : agree on "a" 122- : agree on "a" 1231 C: agree on "a" 1232 C: agree on "a" 1233 C: agree on "a" 1234 C: agree on "a" 123- C: agree on "a" 12-1 C: agree on "a" 12-2 C: hg said "", expected "a" 12-3 C: agree on "a" 12-- C: agree on "a" 1-11 : hg said "", expected "a" 1-12 : agree on "a" 1-1- : agree on "" 1-21 C: agree on "a" 1-22 C: hg said "", expected "a" 1-23 C: agree on "a" 1-2- C: agree on "a" 1--1 : agree on "a" 1--2 : agree on "a" 1--- : agree on "" -111 : agree on "" -112 : agree on "a" -11- : agree on "a" -121 C: agree on "a" -122 C: agree on "a" -123 C: agree on "a" -12- C: agree on "a" -1-1 : agree on "" -1-2 : agree on "a" -1-- : agree on "a" --11 : agree on "" --12 : agree on "a" --1- : agree on "a" ---1 : agree on "a" ---- : agree on "" All the merges of executable bit. $ range () { > max=a > for i in $@; do > if [ $i = - ]; then continue; fi > if [ $i > $max ]; then max=$i; fi > done > if [ $max = a ]; then echo f; else echo f x; fi > } $ isgood () { case $line in *f*x*) true;; *) false;; esac; } $ createfile () { > if [ -f a ] && (([ -x a ] && [ $v = x ]) || (! [ -x a ] && [ $v != x ])) > then touch $file > else touch a; if [ $v = x ]; then chmod +x a; else chmod -x a; fi > fi > } #if execbit $ genmerges fffx : agree on "a" ffxf : agree on "a" ffxx : agree on "" ffx- : agree on "a" ff-x : hg said "", expected "a" fxff : hg said "", expected "a" fxfx : hg said "a", expected "" fxf- : agree on "a" fxxf : agree on "a" fxxx : agree on "" fxx- : agree on "a" fx-f : hg said "", expected "a" fx-x : hg said "", expected "a" fx-- : hg said "", expected "a" f-fx : agree on "a" f-xf : agree on "a" f-xx : hg said "", expected "a" f-x- : agree on "a" f--x : agree on "a" -ffx : agree on "a" -fxf C: agree on "a" -fxx C: hg said "", expected "a" -fx- C: agree on "a" -f-x : hg said "", expected "a" --fx : agree on "a" #endif Files modified or cleanly merged, with no greatest common ancestors: $ hg init repo; cd repo $ touch a0 b0; hg commit -qAm 0 $ hg up -qr null; touch a1 b1; hg commit -qAm 1 $ hg merge -qr 0; rm b*; hg commit -qAm 2 $ hg log -r . -T '{files}\n' b0 b1 $ cd ../ $ rm -rf repo A few cases of criss-cross merges involving deletions (listing all such merges is probably too much). Both gcas contain $files, so we expect the final merge to behave like a merge with a single gca containing $files. $ hg init repo; cd repo $ files="c1 u1 c2 u2" $ touch $files; hg commit -qAm '0 root' $ for f in $files; do echo f > $f; done; hg commit -qAm '1 gca1' $ hg up -qr0; hg revert -qr 1 --all; hg commit -qAm '2 gca2' $ hg up -qr 1; hg merge -qr 2; rm *1; hg commit -qAm '3 p1' $ hg up -qr 2; hg merge -qr 1; rm *2; hg commit -qAm '4 p2' $ hg merge -qr 3; echo f > u1; echo f > u2; rm -f c1 c2 $ hg commit -qAm '5 merge with two gcas' $ hg log -r . -T '{files}\n' # expecting u1 u2 $ cd ../ $ rm -rf repo