send-pull-request: don't send all patches to everyone even with -a

Rather than sending every patch to every recipient of the entire series when
-a is used, only send the cover letter to everyone and use git's
--signed-off-by-cc feature to generate an auto cc list for the individual
patches.

Add a -c option to use --signed-off-by-cc to auto cc recipeients at the
individual patch level. This is implied by -a.

Using git to harvest the Cc list means only collecting Signed-off-by and Cc
lines, rather than the more generic *-by lines previously. This is a fair
trade-off for significantly reduced complexity. If users want to add Acked-by
and Tested-by lines and want to use the -a feature, they should include those
recipients as Cc lines as well.

Now that we rely on git for auto-cc for the individual patches,
make sure the user is prompted before sending each patch by forcing
--confirm=always.

(From OE-Core rev: 90ef7136087f1a16da3c8fc2decbed27a5debcd8)

Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Acked-by: Otavio Salvador <otavio@ossystems.com.br>
Cc: Khem Raj <raj.khem@gmail.com>
Cc: Koen Kooi <koen@dominion.thruhere.net>
Cc: Otavio Salvador <otavio@ossystems.com.br>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 47 insertions, 28 deletions

diff --git a/scripts/send-pull-request b/scripts/send-pull-request
index b294d35bd5..5a11d1f1e6 100755
--- a/scripts/send-pull-request
+++ b/scripts/send-pull-request
@@ -1,36 +1,40 @@
 #!/bin/bash
 AUTO=0
+AUTO_CL=0
 
 # Prevent environment leakage to these vars.
 unset TO
 unset CC
+unset AUTO_CC
 
 usage()
 {
 cat <<EOM
-Usage: $(basename $0) [-h] [-a] [[-t email]...] -p pull-dir 
-  -t email     Explicitly add email to the recipients
-  -a           Automatically harvest recipients from "*-by: email" lines
-               in the patches in the pull-dir
+Usage: $(basename $0) [-h] [-a] [-c] [[-t email]...] -p pull-dir 
+  -a           Send the cover letter to every recipient listed in Cc and
+               Signed-off-by lines found in the cover letter and the patches.
+               This option implies -c.
+  -c           Expand the Cc list for the individual patches using the Cc and
+               Signed-off-by lines from the same patch.
   -p pull-dir  Directory containing summary and patch files
+  -t email     Explicitly add email to the recipients
 EOM
 }
 
-# Collect To and CC addresses from the patch files if they exist
-# $1: Which header to add the recipients to, "TO" or "CC"
-# $2: The regex to match and strip from the line with email addresses
+# Collect addresses from a patch into AUTO_CC
+# $1: a patch file
 harvest_recipients()
 {
-        TO_CC=$1
-        REGX=$2
+        PATCH=$1
         export IFS=$',\n'
-        for PATCH in $PDIR/*.patch; do
-                # Grab To addresses
+        for REGX in "^[Cc][Cc]: *" "^[Ss]igned-[Oo]ff-[Bb]y: *"; do
                 for EMAIL in $(sed '/^---$/q' $PATCH | grep -e "$REGX" | sed "s/$REGX//"); do
-                        if [ "$TO_CC" == "TO" ] && [ "${TO/$EMAIL/}" == "$TO" ] && [ -n "$EMAIL" ]; then
-                                if [ -z "$TO" ]; then TO=$EMAIL; else TO="$TO,$EMAIL"; fi
-                        elif [ "$TO_CC" == "CC" ] && [ "${CC/$EMAIL/}" == "$CC" ] && [ -n "$EMAIL" ]; then
-                                if [ -z "$CC" ]; then CC=$EMAIL; else CC="$CC,$EMAIL"; fi
+                        if [ "${AUTO_CC/$EMAIL/}" == "$AUTO_CC" ] && [ -n "$EMAIL" ]; then
+                                if [ -z "$AUTO_CC" ]; then
+                                        AUTO_CC=$EMAIL;
+                                else
+                                        AUTO_CC="$AUTO_CC,$EMAIL";
+                                fi
                         fi
                 done
         done
@@ -39,9 +43,13 @@ harvest_recipients()
 
 
 # Parse and verify arguments
-while getopts "ahp:t:" OPT; do
+while getopts "achp:t:" OPT; do
         case $OPT in
         a)
+                AUTO_CL=1
+                AUTO=1
+                ;;
+        c)
                 AUTO=1
                 ;;
         h)
@@ -84,13 +92,11 @@ for TOKEN in SUBJECT BLURB; do
 done
 
 
-# Harvest emails from the generated patches and populate the TO and CC variables
-# In addition to To and CC headers/lines, the common Signed-off-by, Tested-by,
-# etc. (*-by) will be added to CC.
-if [ $AUTO -eq 1 ]; then
-        harvest_recipients TO "^[Tt][Oo]: *"
-        harvest_recipients CC "^[Cc][Cc]: *"
-        harvest_recipients CC "^[A-Z][A-Za-z-]*-[Bb][Yy]: *"
+# Harvest emails from the generated patches and populate AUTO_CC.
+if [ $AUTO_CL -eq 1 ]; then
+        for PATCH in $PDIR/*.patch; do
+                harvest_recipients $PATCH
+        done
 fi
 
 AUTO_TO="$(git config sendemail.to)"
@@ -102,7 +108,7 @@ if [ -n "$AUTO_TO" ]; then
         fi
 fi
 
-if [ -z "$TO" ] && [ -z "$CC" ]; then
+if [ -z "$TO" ] && [ -z "$AUTO_CC" ]; then
         echo "ERROR: you have not specified any recipients."
         usage
         exit 1
@@ -114,7 +120,8 @@ cat <<EOM
 The following patches:
 $(for PATCH in $PDIR/*.patch; do echo "    $PATCH"; done)
 
-will now be sent via the git send-email command.
+will now be sent via the git send-email command. Git will prompt you before
+sending any email.
 
 EOM
 echo "Continue? [y/N] "
@@ -124,11 +131,23 @@ if [ "$cont" == "y" ] || [ "$cont" == "Y" ]; then
         ERROR=0
         export IFS=$','
         GIT_TO=$(for R in $TO; do echo -n "--to='$R' "; done)
-        GIT_CC=$(for R in $CC; do echo -n "--cc='$R' "; done)
+        GIT_CC=$(for R in $AUTO_CC; do echo -n "--cc='$R' "; done)
         unset IFS
         for PATCH in $PDIR/*patch; do
-                # We harvest the emails manually, so force git not to.
-                eval "git send-email $GIT_TO $GIT_CC --no-chain-reply-to --suppress-cc=all $PATCH"
+                if [ $AUTO -eq 1 ]; then
+                        if [ $PATCH == "$CL" ] && [ $AUTO_CL -eq 1 ]; then
+                                # Send the cover letter to every recipient, both
+                                # specified as well as harvested.
+                                eval "git send-email $GIT_TO $GIT_CC --confirm=always --no-chain-reply-to --suppress-cc=all $PATCH"
+                        else
+                                # Send the patch to the specified recipients and
+                                # those git finds in this specific patch.
+                                eval "git send-email $GIT_TO --confirm=always --no-chain-reply-to --signed-off-by-cc $PATCH"
+                        fi
+                else
+                        # Only send to the explicitly specified recipients
+                        eval "git send-email $GIT_TO --confirm=always --no-chain-reply-to --suppress-cc=all $PATCH"
+                fi
                 if [ $? -eq 1 ]; then
                         ERROR=1
                 fi