From 139fad21b937dc0b405d243e3abe33429890947f Mon Sep 17 00:00:00 2001
From: Caleb Spare <cespare@gmail.com>
Date: Wed, 23 Mar 2016 17:33:32 -0700
Subject: [PATCH] all: zero mtimes in testdata gz files

Fixes #14937.

Change-Id: Iea11a32230d44d5a43f8aec812d25f13bce85895
Reviewed-on: https://go-review.googlesource.com/21038
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
---
 src/compress/gzip/issue14937_test.go       |  52 +++++++++++++++++++++
 src/compress/gzip/testdata/issue6550.gz    | Bin 65536 -> 65536 bytes
 src/debug/elf/testdata/hello-world-core.gz | Bin 12678 -> 12678 bytes
 src/encoding/json/testdata/code.json.gz    | Bin 120432 -> 120432 bytes
 4 files changed, 52 insertions(+)
 create mode 100644 src/compress/gzip/issue14937_test.go

diff --git a/src/compress/gzip/issue14937_test.go b/src/compress/gzip/issue14937_test.go
new file mode 100644
index 00000000000..cbce0aaca2c
--- /dev/null
+++ b/src/compress/gzip/issue14937_test.go
@@ -0,0 +1,52 @@
+package gzip
+
+import (
+	"os"
+	"path/filepath"
+	"runtime"
+	"strings"
+	"testing"
+	"time"
+)
+
+// Per golang.org/issue/14939, check that every .gz file
+// in the tree has a zero mtime.
+func TestGZIPFilesHaveZeroMTimes(t *testing.T) {
+	var files []string
+	err := filepath.Walk(runtime.GOROOT(), func(path string, info os.FileInfo, err error) error {
+		if err != nil {
+			return err
+		}
+		if !info.IsDir() && strings.HasSuffix(path, ".gz") {
+			files = append(files, path)
+		}
+		return nil
+	})
+	if err != nil {
+		t.Fatal("error collecting list of .gz files in GOROOT: ", err)
+	}
+	if len(files) == 0 {
+		t.Fatal("expected to find some .gz files under GOROOT")
+	}
+	for _, path := range files {
+		checkZeroMTime(t, path)
+	}
+}
+
+func checkZeroMTime(t *testing.T, path string) {
+	f, err := os.Open(path)
+	if err != nil {
+		t.Error(err)
+		return
+	}
+	defer f.Close()
+	gz, err := NewReader(f)
+	if err != nil {
+		t.Errorf("cannot read gzip file %s: %s", path, err)
+		return
+	}
+	defer gz.Close()
+	if !gz.ModTime.Equal(time.Unix(0, 0)) {
+		t.Errorf("gzip file %s has non-zero mtime (%s)", path, gz.ModTime)
+	}
+}
diff --git a/src/compress/gzip/testdata/issue6550.gz b/src/compress/gzip/testdata/issue6550.gz
index 57972b636680170bbe26d3876481b24f54d4ab55..82b4af102632c3f97bd4957e71ea519751ea0ea8 100644
GIT binary patch
delta 19
ZcmZo@U}<Pz;gIj<Si%4V8##Xb2LLuh1{VMT

delta 19
bcmZo@U}<Pz;gIj<Sn_(l!;_61KmG#%N9YK}

diff --git a/src/debug/elf/testdata/hello-world-core.gz b/src/debug/elf/testdata/hello-world-core.gz
index 806af6edbc23bd0db45a9b1adfae9418ca6a969a..6d76ab0934a740bbd2966b9a56188c3881368183 100644
GIT binary patch
delta 17
VcmZomZcFBn@8)0tfsGt>h5#s;1N8s^

delta 17
YcmZomZcFBn@8)3mB6=oZBS)Pf05>EC8UO$Q

diff --git a/src/encoding/json/testdata/code.json.gz b/src/encoding/json/testdata/code.json.gz
index 0e2895b53acb27b9486131d64420dc2ac422897b..1572a92bfbdfe99c28195104740d1f4b1e560f66 100644
GIT binary patch
delta 22
bcmeychW*1Db`JS&4h9ft<k-r=m~jmNRT&0`

delta 22
ecmeychW*1Db`JS&4hE^vgMN)1TR9jrt^ojI!UzNa