Add ability to create reproducible source tarballs.

[thirdparty/binutils-gdb.git] / src-release.sh

diff --git a/src-release.sh b/src-release.sh
index 079b545ae7cec242defd6ac7c0644ca35e9255e6..76c355a583c22712cf7c24176ae58b95f37e2b5a 100755 (executable)
--- a/src-release.sh
+++ b/src-release.sh
@@ -30,6 +30,7 @@ SHA256PROG=sha256sum
 MAKE=make
 CC=gcc
 CXX=g++
+release_date=
 
 # Default to avoid splitting info files by setting the threshold high.
 MAKEINFOFLAGS=--split-size=5000000
@@ -184,9 +185,17 @@ do_tar()
     ver=$2
     echo "==> Making $package-$ver.tar"
     rm -f $package-$ver.tar
-    find $package-$ver -follow \( $CVS_NAMES \) -prune \
-       -o -type f -print \
-       | tar cTfh - $package-$ver.tar
+    if test x$release_date == "x" ; then
+       find $package-$ver -follow \( $CVS_NAMES \) -prune -o -type f -print \
+          | tar cTfh - $package-$ver.tar
+    else
+       # Attempt to create a consistent, reproducible tarball using the
+       # specified date.
+       find $package-$ver -follow \( $CVS_NAMES \) -prune -o -type f -print \
+           | LC_ALL=C sort \
+           | tar cTfh - $package-$ver.tar \
+                 --mtime=$release_date --group=0 --owner=0
+    fi
 }
 
 # Compress the output with bzip2
@@ -340,6 +349,7 @@ usage()
     echo "  -g: Compress with gzip"
     echo "  -l: Compress with lzip"
     echo "  -x: Compress with xz"
+    echo "  -r <date>: Create a reproducible tarball using <date> as the mtime"
     exit 1
 }
 
@@ -363,7 +373,7 @@ build_release()
 
 compressors=""
 
-while getopts ":bglx" opt; do
+while getopts ":bglr:x" opt; do
     case $opt in
        b)
            compressors="$compressors bz2";;
@@ -371,6 +381,8 @@ while getopts ":bglx" opt; do
            compressors="$compressors gz";;
        l)
            compressors="$compressors lz";;
+       r)
+           release_date=$OPTARG;;
        x)
            compressors="$compressors xz";;
        \?)