From 87c8aeb8f6ce270f06b57336c421fffe7903434d Mon Sep 17 00:00:00 2001
From: Pat Riehecky <riehecky at fnal.gov>
Date: Jun 25 2014 17:38:48 +0000
Subject: Added script to re-create SRPM from git commit


---

diff --git a/README.md b/README.md
index 97020f3..cdc37a5 100644
--- a/README.md
+++ b/README.md
@@ -5,6 +5,8 @@ This git repo contains the following scripts that make interfacing with git.c.o,
 Tools:
  * get_sources.sh: when run from inside a package git checkout, will download the relevant non-text sources from the lookaside cache and drop them into the SOURCES/ dir; note: it will generate 0 byte files in place, rather than download them.
 
+ * into_srpm.sh:  reconstructs the srpm from a given commit
+
  * centos.git.repolist.py:  This package gets list of repos from gitblit RPC, used to grab CentOS sources.  Requires the package 'python-requests' which is in the EPEL repo for CentOS-6.  Has a -b switch to pick a specific branch (defaults to master, but you might want to use -b c7)
 
  * return_disttag.sh:  Extracts what appears to be the value of %{dist} from the commit message
diff --git a/into_srpm.sh b/into_srpm.sh
new file mode 100755
index 0000000..32f02b2
--- /dev/null
+++ b/into_srpm.sh
@@ -0,0 +1,152 @@
+#!/bin/bash -u
+#
+# Turn a centos git repo into a .src.rpm file
+#
+# Might want to drop this in ~/bin/ and chmod u+x it
+
+#
+#  License: GPLv2
+#
+#  Initial Author: Pat Riehecky <riehecky at fnal.gov>
+#
+
+#####################################################################
+usage() {
+    echo ''                                               >&2
+    echo "$0 [-hq] [-b branch] [-c shasum]"               >&2
+    echo ''                                               >&2
+    echo 'You need to run this from inside a sources git repo' >&2
+    echo ''                                               >&2
+    echo ' -h: This help message'                         >&2
+    echo ' -q: Suppress warnings'                         >&2
+    echo ''                                               >&2
+    echo ' -b: specify a branch to examine'               >&2
+    echo "     defaults to repo's current branch"         >&2
+    echo "     NOTE: your repo will be set to this branch">&2
+    echo ''                                               >&2
+    echo ' -c: specify a commit id'                       >&2
+    echo "     defaults to repo's current commit id"      >&2
+    echo "     NOTE: your repo will be set to this commit">&2
+    echo ''                                               >&2
+    echo "  $0"                                           >&2
+    echo "  $0 -b c7"                                     >&2
+    echo "  $0 -b remotes/origin/c7"                      >&2
+    echo "  $0 -c 865ae5909b2b5d5fb37971b7ad7960f1fd5a5ffa" >&2
+    echo "  $0 -b c7 -c 865ae5909b2b5d5fb37971b7ad7960f1fd5a5ffa" >&2
+    exit 1
+}
+
+#####################################################################
+
+QUIET=0
+COMMITHASH=""
+BRANCH=""
+
+#####################################################################
+# setup args in the right order for making getopt evaluation
+# nice and easy.  You'll need to read the manpages for more info
+# utilizing 'while' construct rather than 'for arg' to avoid unnecessary
+# shifting of program args
+args=$(getopt -o hqb:c: -- "$@")
+eval set -- "$args"
+
+while [[ 0 -eq 0 ]]; do
+    case $1 in
+        -- )
+            # end of getopt args, shift off the -- and get out of the loop
+            shift
+            break
+           ;;
+         -q )
+            # suppress warnings
+            QUIET=1
+            shift
+           ;;
+         -c )
+            # Use this commit id
+            COMMITHASH=$2
+            shift
+            shift
+           ;;
+         -b )
+            # Check this particular branch 
+            BRANCH=$2
+            shift
+            shift
+           ;;
+         -h )
+            # get help
+            usage
+           ;;
+    esac
+done
+
+if [[ ! -d .git ]] || [[ ! -d SPECS ]]; then
+    echo 'You need to run this from inside a sources git repo' >&2
+    exit 1
+fi
+
+which git >/dev/null 2>&1
+if [[ $? -ne 0 ]]; then
+    echo 'You need git in PATH' >&2
+    exit 1
+fi
+
+which get_sources.sh >/dev/null 2>&1
+if [[ $? -ne 0 ]]; then
+    echo 'You need get_sources.sh from centos-git-common in PATH' >&2
+    exit 1
+fi
+
+which return_disttag.sh >/dev/null 2>&1
+if [[ $? -ne 0 ]]; then
+    echo 'You need return_disttag.sh from centos-git-common in PATH' >&2
+    exit 1
+fi
+
+which get_sources.sh >/dev/null 2>&1
+if [[ $? -ne 0 ]]; then
+    echo 'You need get_sources.sh from centos-git-common in PATH' >&2
+    exit 1
+fi
+
+if [[ "x${BRANCH}" != 'x' ]]; then
+    if [[ $QUIET -eq 1 ]]; then
+        git fetch >/dev/null
+        git checkout ${BRANCH} >/dev/null
+    else
+        git fetch
+        git checkout ${BRANCH}
+    fi
+fi
+
+if [[ "x${COMMITHASH}" != 'x' ]]; then
+    if [[ $QUIET -eq 1 ]]; then
+        git fetch >/dev/null
+        git checkout ${COMMITHASH} >/dev/null
+    else
+        git fetch
+        git checkout ${COMMITHASH}
+    fi
+fi
+
+if [[ $QUIET -eq 1 ]]; then
+    get_sources.sh
+else
+    get_sources.sh -q
+fi
+
+if [[ $QUIET -eq 1 ]]; then
+    rpmbuild --define "%_topdir `pwd`" --define "%dist `return_disttag.sh -q`" -bs --nodeps SPECS/*.spec
+    RC=$?
+else
+    rpmbuild --define "%_topdir `pwd`" --define "%dist `return_disttag.sh`" -bs --nodeps SPECS/*.spec
+    RC=$?
+fi
+
+if [[ ${RC} -ne 0 ]]; then
+    if [[ $QUIET -eq 1 ]]; then
+        echo "$0 failed to recreate srpm" >&2
+    fi
+    exit 1
+fi