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annotate more/bisectinate.sh @ 1432:ee0e4f2f4bdb

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Fiddle with the downloads/binaries layout yet again, and update README for it.
author Rob Landley <rob@landley.net>
date Tue, 23 Aug 2011 08:21:48 -0500
parents aabc07905de3
children ad5303b6d35a
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1 #!/bin/bash
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2
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3 # Development script: bisect a git repository to find the first broken commit
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4 # since the last known good version.
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5
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6 # If any of the pipe segments fail, treat that as a fail.
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7
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8 set -o pipefail
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10 if [ $# -lt 4 ]
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11 then
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12 echo "usage: bisectinate ARCH PACKAGE REPO[@BAD] GOOD [TEST...]" >&2
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13 echo >&2
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14 echo "Bisect PACKAGE for ARCH, from START to BAD within REPO" >&2
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15 exit 1
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16 fi
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17
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18 # Parse command line options
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20 ARCH="$1"
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21 PKG="$2"
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22 REPO="${3/@*/}"
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23 BRANCH="${3/*@/}"
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24 [ "$BRANCH" == "$3" ] && BRANCH=master
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25 START="$4"
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26 shift 4
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27 TEST="$1"
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29 TOP="$(pwd)"
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30 [ -z "$SRCDIR" ] && SRCDIR="$TOP/packages"
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31 [ -z "$BUILD" ] && BUILD="$TOP/build"
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33 if [ ! -d "$REPO/.git" ]
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34 then
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35 echo "No git repo at $REPO"
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36 exit 1
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37 fi
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39 [ -z "$TEST" ] && TEST=true
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40
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41 # For kernel and busybox bisects, only redo part of the build
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42
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43 if [ "$PKG" == linux ] && [ -e "$BUILD/root-filesystem-$ARCH".tar.bz2 ]
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44 then
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45 ZAPJUST=linux-kernel
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46 elif [ "$PKG" == busybox ] &&
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47 [ -e "$BUILD/simple-cross-compiler-$ARCH.tar.bz2" ]
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48 then
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49 ZAPJUST=root-filesystem
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50 else
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51 ZAPJUST=
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52 fi
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54 # Initialize bisection repository
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56 rm -rf "$BUILD/packages/alt-$PKG" "$SRCDIR/alt-$PKG-0.tar.bz2" &&
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57 mkdir -p "$BUILD"/{logs,packages} &&
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58 cd "$BUILD/packages" &&
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59 git clone "$REPO" "alt-$PKG" &&
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60 cd "alt-$PKG" &&
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61 git bisect start &&
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62 git bisect good "$START" || exit 1
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64 RESULT="bad $BRANCH"
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66 # Loop through bisection results
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67
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68 while true
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69 do
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70 # Bisect repository to prepare next version to build. Exit if done.
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72 cd "$BUILD/packages/alt-$PKG" &&
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73 git clean -fdx &&
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74 git checkout -f || exit 1
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75
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76 RESULT="$(git bisect $RESULT)"
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77 echo "$RESULT"
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78 [ ! "$(echo "$RESULT" | head -n 1 | grep "^Bisecting:")" ] && exit
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80 # Update log
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81
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82 git show > "$BUILD/logs/bisectinate-${ARCH}.txt"
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83 git bisect log > "$BUILD/logs/bisectinate-${ARCH}.log"
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84 # The "cat" bypasses git's stupid overengineered built-in call to less.
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85 git log HEAD -1 | cat
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86 echo "Testing..."
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87
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88 cd "$TOP" || exit 1
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89
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90 # Figure out how much ./build.sh needs to rebuild
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91
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92 [ ! -z "$ZAPJUST" ] &&
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93 rm -rf "$BUILD/${ZAPJUST}-$ARCH"{,.tar.bz2} ||
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94 rm -rf "$BUILD"/*-"$ARCH"{,.tar.bz2}
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95
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96 # Try the build
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97
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98 EXTRACT_ALL=1 ALLOW_PATCH_FAILURE=1 USE_UNSTABLE="$PKG" \
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99 ./build.sh "$ARCH" 2>&1 | tee -a "$BUILD"/logs/bisectinate-"$ARCH".txt
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100
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101 # Did it work?
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102
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103 RESULT=bad
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104 if [ -e "$BUILD"/system-image-"$ARCH".tar.bz2 ]
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105 then
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106 set -o pipefail
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107 ARCH="$ARCH" more/timeout.sh 60 "$TEST" 2>&1 | \
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108 tee -a "$BUILD/logs/bisectinate-$ARCH".txt
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109 [ $? -eq 0 ] && RESULT=good
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110 fi
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111
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112 # Keep the last "good" and "bad" logs, separately.
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113
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114 mv "$BUILD"/logs/bisectinate{,-$RESULT}-"$ARCH".txt
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115 done