all: fix reading include file when parent path is absolute

Previously, if the parent document is opened using absolute path and it
contains include directive, the included file will fail to read because
the parent path is joined with current working directory.

5 files changed, 49 insertions, 11 deletions

diff --git a/document.go b/document.go
index 78eea2a..cfa3eeb 100644
--- a/document.go
+++ b/document.go
@@ -8,7 +8,6 @@ import (
 	"fmt"
 	"io"
 	"os"
-	"path/filepath"
 	"strconv"
 	"strings"
 	"time"
@@ -96,7 +95,6 @@ func newDocument() (doc *Document) {
 func Open(file string) (doc *Document, err error) {
 	var (
 		fi  os.FileInfo
-		wd  string
 		raw []byte
 	)
 
@@ -110,13 +108,7 @@ func Open(file string) (doc *Document, err error) {
 		return nil, fmt.Errorf(`Open %s: %w`, file, err)
 	}
 
-	wd, err = os.Getwd()
-	if err != nil {
-		return nil, fmt.Errorf(`Open %s: %w`, file, err)
-	}
-
 	doc = newDocument()
-	doc.fpath = filepath.Join(wd, file)
 	doc.file = file
 	doc.Attributes.Entry[docAttrLastUpdateValue] = fi.ModTime().Round(time.Second).Format(`2006-01-02 15:04:05 Z0700`)
 
diff --git a/element_include.go b/element_include.go
index fc45b34..4b36314 100644
--- a/element_include.go
+++ b/element_include.go
@@ -44,7 +44,7 @@ func parseInclude(doc *Document, line []byte) (el *elementInclude) {
 	el.attrs.parseElementAttribute(line[start : start+end+1])
 
 	path = applySubstitutions(doc, path)
-	el.fpath = filepath.Join(filepath.Dir(doc.fpath), string(path))
+	el.fpath = filepath.Join(filepath.Dir(doc.file), string(path))
 
 	el.content, err = os.ReadFile(el.fpath)
 	if err != nil {
diff --git a/element_include_test.go b/element_include_test.go
new file mode 100644
index 0000000..f337537
--- /dev/null
+++ b/element_include_test.go
@@ -0,0 +1,43 @@
+package asciidoctor
+
+import (
+	"bytes"
+	"os"
+	"path/filepath"
+	"testing"
+
+	"git.sr.ht/~shulhan/pakakeh.go/lib/test"
+)
+
+func TestParseIncludeWithAbsolutePath(t *testing.T) {
+	var (
+		tdata *test.Data
+		err   error
+	)
+	tdata, err = test.LoadData(`testdata/include_test.txt`)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	var wd string
+
+	wd, err = os.Getwd()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	var fadoc = filepath.Join(wd, `testdata`, `include.adoc`)
+	var doc *Document
+
+	doc, err = Open(fadoc)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	var got bytes.Buffer
+
+	doc.ToHTMLEmbedded(&got)
+
+	var exp = string(tdata.Output[`include`])
+	test.Assert(t, `ParseIncludeWithAbsolutePath`, exp, got.String())
+}
diff --git a/testdata/include.adoc b/testdata/include.adoc
new file mode 100644
index 0000000..5c6c772
--- /dev/null
+++ b/testdata/include.adoc
@@ -0,0 +1,3 @@
+include::_includes/list_desc_00.adoc[]
+
+include::_includes/list_desc_01.adoc[]
diff --git a/testdata/include_test.txt b/testdata/include_test.txt
index ba8a0bb..eca5c6d 100644
--- a/testdata/include_test.txt
+++ b/testdata/include_test.txt
@@ -1,12 +1,12 @@
 Test include directive with list description that contains open block.
 
->>> list_description
+>>> include
 
 include::testdata/_includes/list_desc_00.adoc[]
 
 include::testdata/_includes/list_desc_01.adoc[]
 
-<<< list_description
+<<< include
 
 <div class="dlist">
 <dl>