git/t/t4052-stat-output.sh
Zbigniew Jędrzejewski-Szmek dc801e71a7 diff --stat: use less columns for change counts
Number of columns required for change counts is now computed based on
the maximum number of changed lines instead of being fixed. This means
that usually a few more columns will be available for the filenames
and the graph.

The graph width logic is also modified to include enough space for
"Bin XXX -> YYY bytes".

If changes to binary files are mixed with changes to text files,
change counts are padded to take at least three columns. And the other
way around, if change counts require more than three columns, then
"Bin"s are padded to align with the change count. This way, the +-
part starts in the same column as "XXX -> YYY" part for binary files.
This makes the graph easier to parse visually thanks to the empty
column. This mimics the layout of diff --stat before this change.

Tests and the tutorial are updated to reflect the new --stat output.
This means either the removal of extra padding and/or the addition of
up to three extra characters to truncated filenames. One test is added
to check the graph alignment when a binary file change and text file
change of more than 999 lines are committed together.

Signed-off-by: Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-04-30 14:17:26 -07:00

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#!/bin/sh
#
# Copyright (c) 2012 Zbigniew Jędrzejewski-Szmek
#
test_description='test --stat output of various commands'
. ./test-lib.sh
. "$TEST_DIRECTORY"/lib-terminal.sh
# 120 character name
name=aaaaaaaaaa
name=$name$name$name$name$name$name$name$name$name$name$name$name
test_expect_success 'preparation' '
>"$name" &&
git add "$name" &&
git commit -m message &&
echo a >"$name" &&
git commit -m message "$name"
'
while read cmd args
do
cat >expect <<-'EOF'
...aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa | 1 +
EOF
test_expect_success "$cmd: small change with long name gives more space to the name" '
git $cmd $args >output &&
grep " | " output >actual &&
test_cmp expect actual
'
cat >expect <<-'EOF'
...aaaaaaaaaaaaaaaaaaaaaaaaaaaaa | 1 +
EOF
test_expect_success "$cmd --stat=width: a long name is given more room when the bar is short" '
git $cmd $args --stat=40 >output &&
grep " | " output >actual &&
test_cmp expect actual
'
test_expect_success "$cmd --stat-width=width with long name" '
git $cmd $args --stat-width=40 >output &&
grep " | " output >actual &&
test_cmp expect actual
'
cat >expect <<-'EOF'
...aaaaaaaaaaaaaaaaaaaaaaaaaaa | 1 +
EOF
test_expect_success "$cmd --stat=...,name-width with long name" '
git $cmd $args --stat=60,30 >output &&
grep " | " output >actual &&
test_cmp expect actual
'
test_expect_success "$cmd --stat-name-width with long name" '
git $cmd $args --stat-name-width=30 >output &&
grep " | " output >actual &&
test_cmp expect actual
'
done <<\EOF
format-patch -1 --stdout
diff HEAD^ HEAD --stat
show --stat
log -1 --stat
EOF
test_expect_success 'preparation for big change tests' '
>abcd &&
git add abcd &&
git commit -m message &&
i=0 &&
while test $i -lt 1000
do
echo $i && i=$(($i + 1))
done >abcd &&
git commit -m message abcd
'
cat >expect80 <<'EOF'
abcd | 1000 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
EOF
cat >expect200 <<'EOF'
abcd | 1000 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
EOF
while read verb expect cmd args
do
test_expect_success "$cmd $verb COLUMNS (big change)" '
COLUMNS=200 git $cmd $args >output
grep " | " output >actual &&
test_cmp "$expect" actual
'
done <<\EOF
ignores expect80 format-patch -1 --stdout
respects expect200 diff HEAD^ HEAD --stat
respects expect200 show --stat
respects expect200 log -1 --stat
EOF
cat >expect40 <<'EOF'
abcd | 1000 ++++++++++++++++++++++++++
EOF
while read verb expect cmd args
do
test_expect_success "$cmd $verb not enough COLUMNS (big change)" '
COLUMNS=40 git $cmd $args >output
grep " | " output >actual &&
test_cmp "$expect" actual
'
test_expect_success "$cmd $verb statGraphWidth config" '
git -c diff.statGraphWidth=26 $cmd $args >output
grep " | " output >actual &&
test_cmp "$expect" actual
'
done <<\EOF
ignores expect80 format-patch -1 --stdout
respects expect40 diff HEAD^ HEAD --stat
respects expect40 show --stat
respects expect40 log -1 --stat
EOF
cat >expect <<'EOF'
abcd | 1000 ++++++++++++++++++++++++++
EOF
while read cmd args
do
test_expect_success "$cmd --stat=width with big change" '
git $cmd $args --stat=40 >output
grep " | " output >actual &&
test_cmp expect actual
'
test_expect_success "$cmd --stat-width=width with big change" '
git $cmd $args --stat-width=40 >output
grep " | " output >actual &&
test_cmp expect actual
'
test_expect_success "$cmd --stat-graph--width with big change" '
git $cmd $args --stat-graph-width=26 >output
grep " | " output >actual &&
test_cmp expect actual
'
done <<\EOF
format-patch -1 --stdout
diff HEAD^ HEAD --stat
show --stat
log -1 --stat
EOF
test_expect_success 'preparation for long filename tests' '
cp abcd aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa &&
git add aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa &&
git commit -m message
'
cat >expect <<'EOF'
...aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa | 1000 ++++++++++++
EOF
while read cmd args
do
test_expect_success "$cmd --stat=width with big change is more balanced" '
git $cmd $args --stat-width=60 >output &&
grep " | " output >actual &&
test_cmp expect actual
'
done <<\EOF
format-patch -1 --stdout
diff HEAD^ HEAD --stat
show --stat
log -1 --stat
EOF
cat >expect80 <<'EOF'
...aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa | 1000 ++++++++++++++++++++
EOF
cat >expect200 <<'EOF'
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa | 1000 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
EOF
while read verb expect cmd args
do
test_expect_success "$cmd $verb COLUMNS (long filename)" '
COLUMNS=200 git $cmd $args >output
grep " | " output >actual &&
test_cmp "$expect" actual
'
done <<\EOF
ignores expect80 format-patch -1 --stdout
respects expect200 diff HEAD^ HEAD --stat
respects expect200 show --stat
respects expect200 log -1 --stat
EOF
cat >expect <<'EOF'
abcd | 1000 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
EOF
test_expect_success 'merge --stat respects COLUMNS (big change)' '
git checkout -b branch HEAD^^ &&
COLUMNS=100 git merge --stat --no-ff master^ >output &&
grep " | " output >actual
test_cmp expect actual
'
cat >expect <<'EOF'
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa | 1000 +++++++++++++++++++++++++++++++++++++++
EOF
test_expect_success 'merge --stat respects COLUMNS (long filename)' '
COLUMNS=100 git merge --stat --no-ff master >output &&
grep " | " output >actual
test_cmp expect actual
'
test_done