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      1 #!/bin/bash
      2 # Copyright 2013 The Chromium Authors. All rights reserved.
      3 # Use of this source code is governed by a BSD-style license that can be
      4 # found in the LICENSE file.
      5 #
      6 # Script for printing recent commits in a buildbot run.
      7 
      8 # Return the sha1 of the given tag.  If not present, return "".
      9 # $1: path to repo
     10 # $2: tag name
     11 tt_sha1_for_tag() {
     12   oneline=$(cd $1 && git log -1 $2 --format='%H' 2>/dev/null)
     13   if [ $? -eq 0 ] ; then
     14     echo $oneline
     15   fi
     16 }
     17 
     18 # Return the sha1 of HEAD, or ""
     19 # $1: path to repo
     20 tt_sha1_for_head() {
     21   ( cd $1 && git log HEAD -n1 --format='%H' | cat )
     22 }
     23 
     24 # For the given repo, set tag to HEAD.
     25 # $1: path to repo
     26 # $2: tag name
     27 tt_tag_head() {
     28   ( cd $1 && git tag -f $2 )
     29 }
     30 
     31 # For the given repo, delete the tag.
     32 # $1: path to repo
     33 # $2: tag name
     34 tt_delete_tag() {
     35   ( cd $1 && git tag -d $2 )
     36 }
     37 
     38 # For the given repo, set tag to "three commits ago" (for testing).
     39 # $1: path to repo
     40 # $2: tag name
     41 tt_tag_three_ago() {
     42  local sh=$(cd $1 && git log --pretty=oneline -n 3 | tail -1 | awk '{print $1}')
     43   ( cd $1 && git tag -f $2 $sh )
     44 }
     45 
     46 # List the commits between the given tag and HEAD.
     47 # If the tag does not exist, only list the last few.
     48 # If the tag is at HEAD, list nothing.
     49 # Output format has distinct build steps for repos with changes.
     50 # $1: path to repo
     51 # $2: tag name
     52 # $3: simple/short repo name to use for display
     53 tt_list_commits() {
     54   local tag_sha1=$(tt_sha1_for_tag $1 $2)
     55   local head_sha1=$(tt_sha1_for_head $1)
     56   local display_name=$(echo $3 | sed 's#/#_#g')
     57   if [ "${tag_sha1}" = "${head_sha1}" ] ; then
     58     return
     59   fi
     60   if [ "${tag_sha1}" = "" ] ; then
     61     echo "@@@BUILD_STEP Recent commits in repo $display_name@@@"
     62     echo "NOTE: git tag was not found so we have no baseline."
     63     echo "Here are some recent commits, but they may not be new for this build."
     64     ( cd $1 && git log -n 10 --stat | cat)
     65   else
     66     echo "@@@BUILD_STEP New commits in repo $display_name@@@"
     67     ( cd $1 && git log -n 500 $2..HEAD --stat | cat)
     68   fi
     69 }
     70 
     71 # Clean out the tree truth tags in all repos.  For testing.
     72 tt_clean_all() {
     73  for project in $@; do
     74    tt_delete_tag $CHROME_SRC/../$project tree_truth
     75  done
     76 }
     77 
     78 # Print tree truth for all clank repos.
     79 tt_print_all() {
     80  for project in $@; do
     81    local full_path=$CHROME_SRC/../$project
     82    tt_list_commits $full_path tree_truth $project
     83    tt_tag_head $full_path tree_truth
     84  done
     85 }
     86 
     87 # Print a summary of the last 10 commits for each repo.
     88 tt_brief_summary() {
     89   echo "@@@BUILD_STEP Brief summary of recent CLs in every branch@@@"
     90   for p in $@; do
     91     echo $project
     92     (cd $CHROME_SRC/../$p && git log -n 10 --format="   %H %s   %an, %ad" | cat)
     93     echo "================================================================="
     94   done
     95 }
     96 
     97 CHROME_SRC=$1
     98 shift
     99 PROJECT_LIST=$@
    100 tt_brief_summary $PROJECT_LIST
    101 tt_print_all $PROJECT_LIST
    102