#!/bin/sh
#
# Copyright (c) 2008 David Reiss
#

test_description='Test various path utilities'

. ./test-lib.sh

norm_path() {
        expected=$(test-tool path-utils print_path "$2")
        test_expect_success $3 "normalize path: $1 => $2" \
        "test \"\$(test-tool path-utils normalize_path_copy '$1')\" = '$expected'"
}

relative_path() {
        expected=$(test-tool path-utils print_path "$3")
        test_expect_success $4 "relative path: $1 $2 => $3" \
        "test \"\$(test-tool path-utils relative_path '$1' '$2')\" = '$expected'"
}

test_submodule_relative_url() {
        test_expect_success "test_submodule_relative_url: $1 $2 $3 => $4" "
                actual=\$(git submodule--helper resolve-relative-url-test '$1' '$2' '$3') &&
                test \"\$actual\" = '$4'
        "
}

test_git_path() {
        test_expect_success "git-path $1 $2 => $3" "
                $1 git rev-parse --git-path $2 >actual &&
                echo $3 >expect &&
                test_cmp expect actual
        "
}

# On Windows, we are using MSYS's bash, which mangles the paths.
# Absolute paths are anchored at the MSYS installation directory,
# which means that the path / accounts for this many characters:
rootoff=$(test-tool path-utils normalize_path_copy / | wc -c)
# Account for the trailing LF:
if test $rootoff = 2; then
        rootoff=        # we are on Unix
else
        rootoff=$(($rootoff-1))
        # In MSYS2, the root directory "/" is translated into a Windows
        # directory *with* trailing slash. Let's test for that and adjust
        # our expected longest ancestor length accordingly.
        case "$(test-tool path-utils print_path /)" in
        */) rootslash=1;;
        *) rootslash=0;;
        esac
fi

ancestor() {
        # We do some math with the expected ancestor length.
        expected=$3
        if test -n "$rootoff" && test "x$expected" != x-1; then
                expected=$(($expected-$rootslash))
                test $expected -lt 0 ||
                expected=$(($expected+$rootoff))
        fi
        test_expect_success "longest ancestor: $1 $2 => $expected" \
        "actual=\$(test-tool path-utils longest_ancestor_length '$1' '$2') &&
         test \"\$actual\" = '$expected'"
}

# Some absolute path tests should be skipped on Windows due to path mangling
# on POSIX-style absolute paths
case $(uname -s) in
*MINGW*)
        ;;
*CYGWIN*)
        ;;
*)
        test_set_prereq POSIX
        ;;
esac

test_expect_success basename 'test-tool path-utils basename'
test_expect_success dirname 'test-tool path-utils dirname'

norm_path "" ""
norm_path . ""
norm_path ./ ""
norm_path ./. ""
norm_path ./.. ++failed++
norm_path ../. ++failed++
norm_path ./../.// ++failed++
norm_path dir/.. ""
norm_path dir/sub/../.. ""
norm_path dir/sub/../../.. ++failed++
norm_path dir dir
norm_path dir// dir/
norm_path ./dir dir
norm_path dir/. dir/
norm_path dir///./ dir/
norm_path dir//sub/.. dir/
norm_path dir/sub/../ dir/
norm_path dir/sub/../. dir/
norm_path dir/s1/../s2/ dir/s2/
norm_path d1/s1///s2/..//../s3/ d1/s3/
norm_path d1/s1//../s2/../../d2 d2
norm_path d1/.../d2 d1/.../d2
norm_path d1/..././../d2 d1/d2

norm_path / /
norm_path // / POSIX
norm_path /// / POSIX
norm_path /. /
norm_path /./ / POSIX
norm_path /./.. ++failed++ POSIX
norm_path /../. ++failed++
norm_path /./../.// ++failed++ POSIX
norm_path /dir/.. / POSIX
norm_path /dir/sub/../.. / POSIX
norm_path /dir/sub/../../.. ++failed++ POSIX
norm_path /dir /dir
norm_path /dir// /dir/
norm_path /./dir /dir
norm_path /dir/. /dir/
norm_path /dir///./ /dir/
norm_path /dir//sub/.. /dir/
norm_path /dir/sub/../ /dir/
norm_path //dir/sub/../. /dir/ POSIX
norm_path /dir/s1/../s2/ /dir/s2/
norm_path /d1/s1///s2/..//../s3/ /d1/s3/
norm_path /d1/s1//../s2/../../d2 /d2
norm_path /d1/.../d2 /d1/.../d2
norm_path /d1/..././../d2 /d1/d2

ancestor / / -1
ancestor /foo / 0
ancestor /foo /fo -1
ancestor /foo /foo -1
ancestor /foo /bar -1
ancestor /foo /foo/bar -1
ancestor /foo /foo:/bar -1
ancestor /foo /:/foo:/bar 0
ancestor /foo /foo:/:/bar 0
ancestor /foo /:/bar:/foo 0
ancestor /foo/bar / 0
ancestor /foo/bar /fo -1
ancestor /foo/bar /foo 4
ancestor /foo/bar /foo/ba -1
ancestor /foo/bar /:/fo 0
ancestor /foo/bar /foo:/foo/ba 4
ancestor /foo/bar /bar -1
ancestor /foo/bar /fo -1
ancestor /foo/bar /foo:/bar 4
ancestor /foo/bar /:/foo:/bar 4
ancestor /foo/bar /foo:/:/bar 4
ancestor /foo/bar /:/bar:/fo 0
ancestor /foo/bar /:/bar 0
ancestor /foo/bar /foo 4
ancestor /foo/bar /foo:/bar 4
ancestor /foo/bar /bar -1

test_expect_success 'strip_path_suffix' '
        test c:/msysgit = $(test-tool path-utils strip_path_suffix \
                c:/msysgit/libexec//git-core libexec/git-core)
'

test_expect_success 'absolute path rejects the empty string' '
        test_must_fail test-tool path-utils absolute_path ""
'

test_expect_success 'real path rejects the empty string' '
        test_must_fail test-tool path-utils real_path ""
'

test_expect_success POSIX 'real path works on absolute paths 1' '
        nopath="hopefully-absent-path" &&
        test "/" = "$(test-tool path-utils real_path "/")" &&
        test "/$nopath" = "$(test-tool path-utils real_path "/$nopath")"
'

test_expect_success 'real path works on absolute paths 2' '
        nopath="hopefully-absent-path" &&
        # Find an existing top-level directory for the remaining tests:
        d=$(pwd -P | sed -e "s|^\([^/]*/[^/]*\)/.*|\1|") &&
        test "$d" = "$(test-tool path-utils real_path "$d")" &&
        test "$d/$nopath" = "$(test-tool path-utils real_path "$d/$nopath")"
'

test_expect_success POSIX 'real path removes extra leading slashes' '
        nopath="hopefully-absent-path" &&
        test "/" = "$(test-tool path-utils real_path "///")" &&
        test "/$nopath" = "$(test-tool path-utils real_path "///$nopath")" &&
        # Find an existing top-level directory for the remaining tests:
        d=$(pwd -P | sed -e "s|^\([^/]*/[^/]*\)/.*|\1|") &&
        test "$d" = "$(test-tool path-utils real_path "//$d")" &&
        test "$d/$nopath" = "$(test-tool path-utils real_path "//$d/$nopath")"
'

test_expect_success 'real path removes other extra slashes' '
        nopath="hopefully-absent-path" &&
        # Find an existing top-level directory for the remaining tests:
        d=$(pwd -P | sed -e "s|^\([^/]*/[^/]*\)/.*|\1|") &&
        test "$d" = "$(test-tool path-utils real_path "$d///")" &&
        test "$d/$nopath" = "$(test-tool path-utils real_path "$d///$nopath")"
'

test_expect_success SYMLINKS 'real path works on symlinks' '
        mkdir first &&
        ln -s ../.git first/.git &&
        mkdir second &&
        ln -s ../first second/other &&
        mkdir third &&
        dir="$(cd .git; pwd -P)" &&
        dir2=third/../second/other/.git &&
        test "$dir" = "$(test-tool path-utils real_path $dir2)" &&
        file="$dir"/index &&
        test "$file" = "$(test-tool path-utils real_path $dir2/index)" &&
        basename=blub &&
        test "$dir/$basename" = "$(cd .git && test-tool path-utils real_path "$basename")" &&
        ln -s ../first/file .git/syml &&
        sym="$(cd first; pwd -P)"/file &&
        test "$sym" = "$(test-tool path-utils real_path "$dir2/syml")"
'

test_expect_success SYMLINKS 'prefix_path works with absolute paths to work tree symlinks' '
        ln -s target symlink &&
        test "$(test-tool path-utils prefix_path prefix "$(pwd)/symlink")" = "symlink"
'

test_expect_success 'prefix_path works with only absolute path to work tree' '
        echo "" >expected &&
        test-tool path-utils prefix_path prefix "$(pwd)" >actual &&
        test_cmp expected actual
'

test_expect_success 'prefix_path rejects absolute path to dir with same beginning as work tree' '
        test_must_fail test-tool path-utils prefix_path prefix "$(pwd)a"
'

test_expect_success SYMLINKS 'prefix_path works with absolute path to a symlink to work tree having  same beginning as work tree' '
        git init repo &&
        ln -s repo repolink &&
        test "a" = "$(cd repo && test-tool path-utils prefix_path prefix "$(pwd)/../repolink/a")"
'

relative_path /foo/a/b/c/       /foo/a/b/       c/
relative_path /foo/a/b/c/       /foo/a/b        c/
relative_path /foo/a//b//c/     ///foo/a/b//    c/              POSIX
relative_path /foo/a/b          /foo/a/b        ./
relative_path /foo/a/b/         /foo/a/b        ./
relative_path /foo/a            /foo/a/b        ../
relative_path /                 /foo/a/b/       ../../../
relative_path /foo/a/c          /foo/a/b/       ../c
relative_path /foo/a/c          /foo/a/b        ../c
relative_path /foo/x/y          /foo/a/b/       ../../x/y
relative_path /foo/a/b          "<empty>"       /foo/a/b
relative_path /foo/a/b          "<null>"        /foo/a/b
relative_path foo/a/b/c/        foo/a/b/        c/
relative_path foo/a/b/c/        foo/a/b         c/
relative_path foo/a/b//c        foo/a//b        c
relative_path foo/a/b/          foo/a/b/        ./
relative_path foo/a/b/          foo/a/b         ./
relative_path foo/a             foo/a/b         ../
relative_path foo/x/y           foo/a/b         ../../x/y
relative_path foo/a/c           foo/a/b         ../c
relative_path foo/a/b           /foo/x/y        foo/a/b
relative_path /foo/a/b          foo/x/y         /foo/a/b
relative_path d:/a/b            D:/a/c          ../b            MINGW
relative_path C:/a/b            D:/a/c          C:/a/b          MINGW
relative_path foo/a/b           "<empty>"       foo/a/b
relative_path foo/a/b           "<null>"        foo/a/b
relative_path "<empty>"         /foo/a/b        ./
relative_path "<empty>"         "<empty>"       ./
relative_path "<empty>"         "<null>"        ./
relative_path "<null>"          "<empty>"       ./
relative_path "<null>"          "<null>"        ./
relative_path "<null>"          /foo/a/b        ./

test_git_path A=B                info/grafts .git/info/grafts
test_git_path GIT_GRAFT_FILE=foo info/grafts foo
test_git_path GIT_GRAFT_FILE=foo info/////grafts foo
test_git_path GIT_INDEX_FILE=foo index foo
test_git_path GIT_INDEX_FILE=foo index/foo .git/index/foo
test_git_path GIT_INDEX_FILE=foo index2 .git/index2
test_expect_success 'setup fake objects directory foo' 'mkdir foo'
test_git_path GIT_OBJECT_DIRECTORY=foo objects foo
test_git_path GIT_OBJECT_DIRECTORY=foo objects/foo foo/foo
test_git_path GIT_OBJECT_DIRECTORY=foo objects2 .git/objects2
test_expect_success 'setup common repository' 'git --git-dir=bar init'
test_git_path GIT_COMMON_DIR=bar index                    .git/index
test_git_path GIT_COMMON_DIR=bar HEAD                     .git/HEAD
test_git_path GIT_COMMON_DIR=bar logs/HEAD                .git/logs/HEAD
test_git_path GIT_COMMON_DIR=bar logs/refs/bisect/foo     .git/logs/refs/bisect/foo
test_git_path GIT_COMMON_DIR=bar logs/refs/bisec/foo      bar/logs/refs/bisec/foo
test_git_path GIT_COMMON_DIR=bar logs/refs/bisec          bar/logs/refs/bisec
test_git_path GIT_COMMON_DIR=bar logs/refs/bisectfoo      bar/logs/refs/bisectfoo
test_git_path GIT_COMMON_DIR=bar objects                  bar/objects
test_git_path GIT_COMMON_DIR=bar objects/bar              bar/objects/bar
test_git_path GIT_COMMON_DIR=bar info/exclude             bar/info/exclude
test_git_path GIT_COMMON_DIR=bar info/grafts              bar/info/grafts
test_git_path GIT_COMMON_DIR=bar info/sparse-checkout     .git/info/sparse-checkout
test_git_path GIT_COMMON_DIR=bar info//sparse-checkout    .git/info//sparse-checkout
test_git_path GIT_COMMON_DIR=bar remotes/bar              bar/remotes/bar
test_git_path GIT_COMMON_DIR=bar branches/bar             bar/branches/bar
test_git_path GIT_COMMON_DIR=bar logs/refs/heads/master   bar/logs/refs/heads/master
test_git_path GIT_COMMON_DIR=bar refs/heads/master        bar/refs/heads/master
test_git_path GIT_COMMON_DIR=bar refs/bisect/foo          .git/refs/bisect/foo
test_git_path GIT_COMMON_DIR=bar hooks/me                 bar/hooks/me
test_git_path GIT_COMMON_DIR=bar config                   bar/config
test_git_path GIT_COMMON_DIR=bar packed-refs              bar/packed-refs
test_git_path GIT_COMMON_DIR=bar shallow                  bar/shallow

# In the tests below, $(pwd) must be used because it is a native path on
# Windows and avoids MSYS's path mangling (which simplifies "foo/../bar" and
# strips the dot from trailing "/.").

test_submodule_relative_url "../" "../foo" "../submodule" "../../submodule"
test_submodule_relative_url "../" "../foo/bar" "../submodule" "../../foo/submodule"
test_submodule_relative_url "../" "../foo/submodule" "../submodule" "../../foo/submodule"
test_submodule_relative_url "../" "./foo" "../submodule" "../submodule"
test_submodule_relative_url "../" "./foo/bar" "../submodule" "../foo/submodule"
test_submodule_relative_url "../../../" "../foo/bar" "../sub/a/b/c" "../../../../foo/sub/a/b/c"
test_submodule_relative_url "../" "$(pwd)/addtest" "../repo" "$(pwd)/repo"
test_submodule_relative_url "../" "foo/bar" "../submodule" "../foo/submodule"
test_submodule_relative_url "../" "foo" "../submodule" "../submodule"

test_submodule_relative_url "(null)" "../foo/bar" "../sub/a/b/c" "../foo/sub/a/b/c"
test_submodule_relative_url "(null)" "../foo/bar" "../sub/a/b/c/" "../foo/sub/a/b/c"
test_submodule_relative_url "(null)" "../foo/bar/" "../sub/a/b/c" "../foo/sub/a/b/c"
test_submodule_relative_url "(null)" "../foo/bar" "../submodule" "../foo/submodule"
test_submodule_relative_url "(null)" "../foo/submodule" "../submodule" "../foo/submodule"
test_submodule_relative_url "(null)" "../foo" "../submodule" "../submodule"
test_submodule_relative_url "(null)" "./foo/bar" "../submodule" "foo/submodule"
test_submodule_relative_url "(null)" "./foo" "../submodule" "submodule"
test_submodule_relative_url "(null)" "//somewhere else/repo" "../subrepo" "//somewhere else/subrepo"
test_submodule_relative_url "(null)" "//somewhere else/repo" "../../subrepo" "//subrepo"
test_submodule_relative_url "(null)" "//somewhere else/repo" "../../../subrepo" "/subrepo"
test_submodule_relative_url "(null)" "//somewhere else/repo" "../../../../subrepo" "subrepo"
test_submodule_relative_url "(null)" "$(pwd)/subsuper_update_r" "../subsubsuper_update_r" "$(pwd)/subsubsuper_update_r"
test_submodule_relative_url "(null)" "$(pwd)/super_update_r2" "../subsuper_update_r" "$(pwd)/subsuper_update_r"
test_submodule_relative_url "(null)" "$(pwd)/." "../." "$(pwd)/."
test_submodule_relative_url "(null)" "$(pwd)" "./." "$(pwd)/."
test_submodule_relative_url "(null)" "$(pwd)/addtest" "../repo" "$(pwd)/repo"
test_submodule_relative_url "(null)" "$(pwd)" "./å äö" "$(pwd)/å äö"
test_submodule_relative_url "(null)" "$(pwd)/." "../submodule" "$(pwd)/submodule"
test_submodule_relative_url "(null)" "$(pwd)/submodule" "../submodule" "$(pwd)/submodule"
test_submodule_relative_url "(null)" "$(pwd)/home2/../remote" "../bundle1" "$(pwd)/home2/../bundle1"
test_submodule_relative_url "(null)" "$(pwd)/submodule_update_repo" "./." "$(pwd)/submodule_update_repo/."
test_submodule_relative_url "(null)" "file:///tmp/repo" "../subrepo" "file:///tmp/subrepo"
test_submodule_relative_url "(null)" "foo/bar" "../submodule" "foo/submodule"
test_submodule_relative_url "(null)" "foo" "../submodule" "submodule"
test_submodule_relative_url "(null)" "helper:://hostname/repo" "../subrepo" "helper:://hostname/subrepo"
test_submodule_relative_url "(null)" "helper:://hostname/repo" "../../subrepo" "helper:://subrepo"
test_submodule_relative_url "(null)" "helper:://hostname/repo" "../../../subrepo" "helper::/subrepo"
test_submodule_relative_url "(null)" "helper:://hostname/repo" "../../../../subrepo" "helper::subrepo"
test_submodule_relative_url "(null)" "helper:://hostname/repo" "../../../../../subrepo" "helper:subrepo"
test_submodule_relative_url "(null)" "helper:://hostname/repo" "../../../../../../subrepo" ".:subrepo"
test_submodule_relative_url "(null)" "ssh://hostname/repo" "../subrepo" "ssh://hostname/subrepo"
test_submodule_relative_url "(null)" "ssh://hostname/repo" "../../subrepo" "ssh://subrepo"
test_submodule_relative_url "(null)" "ssh://hostname/repo" "../../../subrepo" "ssh:/subrepo"
test_submodule_relative_url "(null)" "ssh://hostname/repo" "../../../../subrepo" "ssh:subrepo"
test_submodule_relative_url "(null)" "ssh://hostname/repo" "../../../../../subrepo" ".:subrepo"
test_submodule_relative_url "(null)" "ssh://hostname:22/repo" "../subrepo" "ssh://hostname:22/subrepo"
test_submodule_relative_url "(null)" "user@host:path/to/repo" "../subrepo" "user@host:path/to/subrepo"
test_submodule_relative_url "(null)" "user@host:repo" "../subrepo" "user@host:subrepo"
test_submodule_relative_url "(null)" "user@host:repo" "../../subrepo" ".:subrepo"

test_expect_success 'match .gitmodules' '
        test-tool path-utils is_dotgitmodules \
                .gitmodules \
                \
                .git${u200c}modules \
                \
                .Gitmodules \
                .gitmoduleS \
                \
                ".gitmodules " \
                ".gitmodules." \
                ".gitmodules  " \
                ".gitmodules. " \
                ".gitmodules ." \
                ".gitmodules.." \
                ".gitmodules   " \
                ".gitmodules.  " \
                ".gitmodules . " \
                ".gitmodules  ." \
                \
                ".Gitmodules " \
                ".Gitmodules." \
                ".Gitmodules  " \
                ".Gitmodules. " \
                ".Gitmodules ." \
                ".Gitmodules.." \
                ".Gitmodules   " \
                ".Gitmodules.  " \
                ".Gitmodules . " \
                ".Gitmodules  ." \
                \
                GITMOD~1 \
                gitmod~1 \
                GITMOD~2 \
                gitmod~3 \
                GITMOD~4 \
                \
                "GITMOD~1 " \
                "gitmod~2." \
                "GITMOD~3  " \
                "gitmod~4. " \
                "GITMOD~1 ." \
                "gitmod~2   " \
                "GITMOD~3.  " \
                "gitmod~4 . " \
                \
                GI7EBA~1 \
                gi7eba~9 \
                \
                GI7EB~10 \
                GI7EB~11 \
                GI7EB~99 \
                GI7EB~10 \
                GI7E~100 \
                GI7E~101 \
                GI7E~999 \
                ~1000000 \
                ~9999999 \
                \
                --not \
                ".gitmodules x"  \
                ".gitmodules .x" \
                \
                " .gitmodules" \
                \
                ..gitmodules \
                \
                gitmodules \
                \
                .gitmodule \
                \
                ".gitmodules x " \
                ".gitmodules .x" \
                \
                GI7EBA~ \
                GI7EBA~0 \
                GI7EBA~~1 \
                GI7EBA~X \
                Gx7EBA~1 \
                GI7EBX~1 \
                \
                GI7EB~1 \
                GI7EB~01 \
                GI7EB~1X
'

test_done