3 files changed, 98 insertions, 0 deletions

diff --git a/recipes-devtools/go-dirhash-native/go-dirhash-native.bb b/recipes-devtools/go-dirhash-native/go-dirhash-native.bb
new file mode 100644
index 00000000..64eab48c
--- /dev/null
+++ b/recipes-devtools/go-dirhash-native/go-dirhash-native.bb
@@ -0,0 +1,48 @@
+SUMMARY = "Go dirhash helper for offline Go module checksum generation"
+HOMEPAGE = "https://go.googlesource.com/mod"
+
+LICENSE = "BSD-3-Clause"
+LIC_FILES_CHKSUM = "file://LICENSE;md5=7998cb338f82d15c0eff93b7004d272a"
+
+SRC_URI = "git://go.googlesource.com/mod;protocol=https;nobranch=1;rev=f8a9fe217cff893cb67f4acad96a0021c13ee6e7;destsuffix=git/mod \
+           file://dirhash-helper.go \
+           file://LICENSE"
+
+S = "${UNPACKDIR}/git/mod"
+
+PV = "1.0"
+
+DEPENDS = "go-native"
+
+inherit go native
+
+do_compile() {
+    dirhash_gopath="${WORKDIR}/dirhash-gopath"
+    dirhash_gocache="${WORKDIR}/dirhash-gocache"
+    dirhash_gomodcache="${WORKDIR}/dirhash-gomodcache"
+
+    install -d "${dirhash_gopath}/src/dirhash-helper"
+    install -d "${dirhash_gopath}/src/golang.org/x"
+
+    cp "${UNPACKDIR}/dirhash-helper.go" "${dirhash_gopath}/src/dirhash-helper/main.go"
+    cp -a "${S}" "${dirhash_gopath}/src/golang.org/x/mod"
+
+    bbnote "Building dirhash helper"
+    (
+        cd "${dirhash_gopath}/src/dirhash-helper" && \
+        GOPATH="${dirhash_gopath}" \
+        GOCACHE="${dirhash_gocache}" \
+        GOMODCACHE="${dirhash_gomodcache}" \
+        GO111MODULE="off" \
+        ${GO} build -o dirhash .
+    )
+}
+
+do_install() {
+    install -d "${D}${bindir}"
+    dirhash_gopath="${WORKDIR}/dirhash-gopath"
+    install -m 0755 "${dirhash_gopath}/src/dirhash-helper/dirhash" "${D}${bindir}/dirhash"
+
+    install -d "${D}${datadir}/licenses/${PN}"
+    install -m 0644 "${UNPACKDIR}/LICENSE" "${D}${datadir}/licenses/${PN}/LICENSE"
+}
diff --git a/recipes-devtools/go-dirhash-native/go-dirhash/LICENSE b/recipes-devtools/go-dirhash-native/go-dirhash/LICENSE
new file mode 100644
index 00000000..9feb7621
--- /dev/null
+++ b/recipes-devtools/go-dirhash-native/go-dirhash/LICENSE
@@ -0,0 +1,26 @@
+Copyright (c) 2009 The Go Authors. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+   * Redistributions of source code must retain the above copyright
+     notice, this list of conditions and the following disclaimer.
+   * Redistributions in binary form must reproduce the above copyright
+     notice, this list of conditions and the following disclaimer in
+     the documentation and/or other materials provided with the
+     distribution.
+   * Neither the name of Google Inc. nor the names of its
+     contributors may be used to endorse or promote products derived
+     from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/recipes-devtools/go-dirhash-native/go-dirhash/dirhash-helper.go b/recipes-devtools/go-dirhash-native/go-dirhash/dirhash-helper.go
new file mode 100644
index 00000000..d2aec41c
--- /dev/null
+++ b/recipes-devtools/go-dirhash-native/go-dirhash/dirhash-helper.go
@@ -0,0 +1,24 @@
+package main
+
+import (
+    "fmt"
+    "os"
+
+    "golang.org/x/mod/sumdb/dirhash"
+)
+
+func main() {
+    if len(os.Args) != 2 {
+        fmt.Fprintf(os.Stderr, "Usage: %s <zip-file>\n", os.Args[0])
+        os.Exit(1)
+    }
+
+    zipPath := os.Args[1]
+    hash, err := dirhash.HashZip(zipPath, dirhash.DefaultHash)
+    if err != nil {
+        fmt.Fprintf(os.Stderr, "Error: %v\n", err)
+        os.Exit(1)
+    }
+
+    fmt.Println(hash)
+}