t5700: modernize style

The early part of this test is rather old, and does not
follow our usual style guidelines. In particular:

  - the tests liberally chdir, and expect out-of-test "cd"
    commands to return them to a sane state

  - test commands aren't indented at all

  - there are a lot of minor formatting nits, like the
    opening quote of the test block on the wrong line,
    spaces after ">", etc

This patch fixes the style issues, and uses a few helper
functions, along with subshells and "git -C", to avoid
changing the cwd of the main script.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/t/t5700-clone-reference.sh b/t/t5700-clone-reference.sh
index 3e783fc..51d131a 100755 (executable)
--- a/t/t5700-clone-reference.sh
+++ b/t/t5700-clone-reference.sh
@@ -10,49 +10,51 @@ base_dir=`pwd`
 
 U=$base_dir/UPLOAD_LOG
 
-test_expect_success 'preparing first repository' \
-'test_create_repo A && cd A &&
-echo first > file1 &&
-git add file1 &&
-git commit -m initial'
-
-cd "$base_dir"
-
-test_expect_success 'preparing second repository' \
-'git clone A B && cd B &&
-echo second > file2 &&
-git add file2 &&
-git commit -m addition &&
-git repack -a -d &&
-git prune'
-
-cd "$base_dir"
-
-test_expect_success 'cloning with reference (-l -s)' \
-'git clone -l -s --reference B A C'
-
-cd "$base_dir"
-
-test_expect_success 'existence of info/alternates' \
-'test_line_count = 2 C/.git/objects/info/alternates'
-
-cd "$base_dir"
+# create a commit in repo $1 with name $2
+commit_in () {
+       (
+               cd "$1" &&
+               echo "$2" >"$2" &&
+               git add "$2" &&
+               git commit -m "$2"
+       )
+}
+
+# check that there are $2 loose objects in repo $1
+test_objcount () {
+       echo "$2" >expect &&
+       git -C "$1" count-objects >actual.raw &&
+       cut -d' ' -f1 <actual.raw >actual &&
+       test_cmp expect actual
+}
+
+test_expect_success 'preparing first repository' '
+       test_create_repo A &&
+       commit_in A file1
+'
 
-test_expect_success 'pulling from reference' \
-'cd C &&
-git pull ../B master'
+test_expect_success 'preparing second repository' '
+       git clone A B &&
+       commit_in B file2 &&
+       git -C B repack -ad &&
+       git -C B prune
+'
 
-cd "$base_dir"
+test_expect_success 'cloning with reference (-l -s)' '
+       git clone -l -s --reference B A C
+'
 
-test_expect_success 'that reference gets used' \
-'cd C &&
-echo "0 objects, 0 kilobytes" > expected &&
-git count-objects > current &&
-test_cmp expected current'
+test_expect_success 'existence of info/alternates' '
+       test_line_count = 2 C/.git/objects/info/alternates
+'
 
-cd "$base_dir"
+test_expect_success 'pulling from reference' '
+       git -C C pull ../B master
+'
 
-rm -f "$U.D"
+test_expect_success 'that reference gets used' '
+       test_objcount C 0
+'
 
 test_expect_success 'cloning with reference (no -l -s)' '
        GIT_TRACE_PACKET=$U.D git clone --reference B "file://$(pwd)/A" D
@@ -63,95 +65,64 @@ test_expect_success 'fetched no objects' '
        ! grep " want" "$U.D"
 '
 
-cd "$base_dir"
-
-test_expect_success 'existence of info/alternates' \
-'test_line_count = 1 D/.git/objects/info/alternates'
-
-cd "$base_dir"
-
-test_expect_success 'pulling from reference' \
-'cd D && git pull ../B master'
-
-cd "$base_dir"
-
-test_expect_success 'that reference gets used' \
-'cd D && echo "0 objects, 0 kilobytes" > expected &&
-git count-objects > current &&
-test_cmp expected current'
-
-cd "$base_dir"
+test_expect_success 'existence of info/alternates' '
+       test_line_count = 1 D/.git/objects/info/alternates
+'
 
-test_expect_success 'updating origin' \
-'cd A &&
-echo third > file3 &&
-git add file3 &&
-git commit -m update &&
-git repack -a -d &&
-git prune'
+test_expect_success 'pulling from reference' '
+       git -C D pull ../B master
+'
 
-cd "$base_dir"
+test_expect_success 'that reference gets used' '
+       test_objcount D 0
+'
 
-test_expect_success 'pulling changes from origin' \
-'cd C &&
-git pull origin'
+test_expect_success 'updating origin' '
+       commit_in A file3 &&
+       git -C A repack -ad &&
+       git -C A prune
+'
 
-cd "$base_dir"
+test_expect_success 'pulling changes from origin' '
+       git -C C pull origin
+'
 
 # the 2 local objects are commit and tree from the merge
-test_expect_success 'that alternate to origin gets used' \
-'cd C &&
-echo "2 objects" > expected &&
-git count-objects | cut -d, -f1 > current &&
-test_cmp expected current'
-
-cd "$base_dir"
-
-test_expect_success 'pulling changes from origin' \
-'cd D &&
-git pull origin'
+test_expect_success 'that alternate to origin gets used' '
+       test_objcount C 2
+'
 
-cd "$base_dir"
+test_expect_success 'pulling changes from origin' '
+       git -C D pull origin
+'
 
 # the 5 local objects are expected; file3 blob, commit in A to add it
 # and its tree, and 2 are our tree and the merge commit.
-test_expect_success 'check objects expected to exist locally' \
-'cd D &&
-echo "5 objects" > expected &&
-git count-objects | cut -d, -f1 > current &&
-test_cmp expected current'
-
-cd "$base_dir"
-
-test_expect_success 'preparing alternate repository #1' \
-'test_create_repo F && cd F &&
-echo first > file1 &&
-git add file1 &&
-git commit -m initial'
-
-cd "$base_dir"
-
-test_expect_success 'cloning alternate repo #2 and adding changes to repo #1' \
-'git clone F G && cd F &&
-echo second > file2 &&
-git add file2 &&
-git commit -m addition'
-
-cd "$base_dir"
+test_expect_success 'check objects expected to exist locally' '
+       test_objcount D 5
+'
 
-test_expect_success 'cloning alternate repo #1, using #2 as reference' \
-'git clone --reference G F H'
+test_expect_success 'preparing alternate repository #1' '
+       test_create_repo F &&
+       commit_in F file1
+'
 
-cd "$base_dir"
+test_expect_success 'cloning alternate repo #2 and adding changes to repo #1' '
+       git clone F G &&
+       commit_in F file2
+'
 
-test_expect_success 'cloning with reference being subset of source (-l -s)' \
-'git clone -l -s --reference A B E'
+test_expect_success 'cloning alternate repo #1, using #2 as reference' '
+       git clone --reference G F H
+'
 
-cd "$base_dir"
+test_expect_success 'cloning with reference being subset of source (-l -s)' '
+       git clone -l -s --reference A B E
+'
 
 test_expect_success 'clone with reference from a tagged repository' '
        (
-               cd A && git tag -a -m 'tagged' HEAD
+               cd A && git tag -a -m tagged HEAD
        ) &&
        git clone --reference=A A I
 '
@@ -168,8 +139,6 @@ test_expect_success 'prepare branched repository' '
        )
 '
 
-rm -f "$U.K"
-
 test_expect_success 'fetch with incomplete alternates' '
        git init K &&
        echo "$base_dir/A/.git/objects" >K/.git/objects/info/alternates &&