update_git_source_package.sh

   1 #!/usr/bin/env bash
   2 # update_git_source_package.sh: (c) 2023 Jo-Philipp Wich <jo@mein.io>
   3 # Licensed under the terms of the Apache License, Version 2.0
   4
   5 MAKEFILE=$1
   6 COMMIT=${2:-HEAD}
   7 TOPDIR=$3
   8
   9 [ -n "$MAKEFILE" ] || {
  10         cat <<-EOT
  11         Usage: $0 <package name or makefile path> [revision] [topdir]
  12
  13         Update an OpenWrt package Makefile with PKG_SOURCE_PROTO:=git to
  14         the given upstream revision (or 'HEAD' if omitted).
  15
  16         The script either accepts a package name, like "netifd" or
  17         an absolute or relative path to a Makefile, e.g.
  18         "./package/utils/ucode/Makefile".
  19
  20         If the revision argument is ommitted, the package is updated
  21         to the current HEAD of the remote Git repository.
  22
  23         By default, this script tries to infer the buildroot directory
  24         from the package Makefile path but it may be overridden by
  25         passing it as 3rd argument. This is useful in situation where
  26         the Makefile to update does not reside within an OpenWrt buildroot.
  27
  28         On success, the package Makefile is automatically modified and
  29         the resulting changes are committed in the currently checked
  30         buildroot branch using a standard commit message format.
  31         EOT
  32
  33         exit 1
  34 }
  35
  36 MAKE=$(which gmake) || MAKE=$(which make)
  37 FIND=$(which gfind) || FIND=$(which find)
  38
  39 [ -x "$MAKE" ] || {
  40         echo "Unable to locate `make` executable" >&2
  41         exit 1
  42 }
  43
  44 [ -x "$FIND" ] || {
  45         echo "Unable to locate `find` executable" >&2
  46         exit 1
  47 }
  48
  49 [ -e "$MAKEFILE" ] || {
  50         MAKEFILE=$("$FIND" "${TOPDIR:-.}/package/" -type f -path "*/$MAKEFILE/Makefile" | head -n1)
  51 }
  52
  53 [ -f "$MAKEFILE" ] || {
  54         echo "Usage: $0 <path/to/Makefile> [target commit] [path/to/buildroot/topdir]"
  55         exit 1
  56 }
  57
  58 grep -sq BuildPackage "$MAKEFILE" || {
  59         echo "The file '$MAKEFILE' does not appear to be an OpenWrt package Makefile." >&2
  60         exit 1
  61 }
  62
  63 [ -n "$TOPDIR" ] || {
  64         TOPDIR=$(cd "$(dirname "${MAKEFILE%/*}")"; pwd)
  65
  66         while [ "$TOPDIR" != "/" ]; do
  67                 TOPDIR=$(dirname "$TOPDIR")
  68                 [ -f "$TOPDIR/rules.mk" ] && break
  69         done
  70
  71         [ -f "$TOPDIR/rules.mk" ] || {
  72                 echo "Unable to determine buildroot directory." >&2
  73                 exit 1
  74         }
  75 }
  76
  77 export TOPDIR
  78
  79 eval $(
  80         "$MAKE" --no-print-directory -C "$(dirname "$MAKEFILE")" \
  81                 var.PKG_NAME \
  82                 var.PKG_RELEASE \
  83                 var.PKG_SOURCE_PROTO \
  84                 var.PKG_SOURCE_URL \
  85                 var.PKG_SOURCE_DATE \
  86                 var.PKG_SOURCE_VERSION \
  87                 var.PKG_MIRROR_HASH
  88 )
  89
  90 case "$PKG_SOURCE_PROTO:$PKG_SOURCE_URL" in
  91         git:http://*|git:https://*|git:git://*|git:file:*)
  92                 :
  93         ;;
  94         *)
  95                 echo "Unsupported combination of source protocol ('$PKG_SOURCE_PROTO') and url ('$PKG_SOURCE_URL')." >&2
  96                 exit 1
  97         ;;
  98 esac
  99
 100 TEMP_GIT_DIR=
 101
 102 for signal in INT TERM EXIT; do
 103         trap '
 104                 [ -d "$TEMP_GIT_DIR" ] && rm -rf "$TEMP_GIT_DIR";
 105                 git -C "$(dirname "$MAKEFILE")" checkout --quiet "$(basename "$MAKEFILE")"
 106         ' $signal
 107 done
 108
 109 TEMP_GIT_DIR=$(mktemp -d) || {
 110         echo "Unable to create temporary Git directory." >&2
 111         exit 1
 112 }
 113
 114 git clone --bare "$PKG_SOURCE_URL" "$TEMP_GIT_DIR" || {
 115         echo "Unable to clone Git repository '$PKG_SOURCE_URL'." >&2
 116         exit 1
 117 }
 118
 119 GIT_LOG="$(git -C "$TEMP_GIT_DIR" log \
 120         --reverse --no-merges \
 121         --abbrev=12 \
 122         --format="%h %s" \
 123         "$PKG_SOURCE_VERSION..$COMMIT" \
 124 )" || {
 125         echo "Unable to determine changes from commit '$PKG_SOURCE_VERSION' to '$COMMIT'." >&2
 126         exit 1
 127 }
 128
 129 GIT_DATE_COMMIT=$(git -C "$TEMP_GIT_DIR" log \
 130         -1 --format='%cd %H' \
 131         --date='format:%Y-%m-%d' \
 132         "$COMMIT" \
 133 ) || {
 134         echo "Unable to determine target commit ID and date." >&2
 135         exit 1
 136 }
 137
 138 sed -i -r \
 139         -e "/PKG_SOURCE_VERSION/s#\<$PKG_SOURCE_VERSION\>#${GIT_DATE_COMMIT#* }#" \
 140         -e "/PKG_SOURCE_DATE/s#\<$PKG_SOURCE_DATE\>#${GIT_DATE_COMMIT% *}#" \
 141         "$MAKEFILE"
 142
 143 if [ -n "$PKG_RELEASE" ] && [ "$PKG_RELEASE" != "1" ]; then
 144         sed -i -r \
 145                 -e "/PKG_RELEASE/s#\<$PKG_RELEASE\>#1#" \
 146                 "$MAKEFILE"
 147 fi
 148
 149 eval $(
 150         "$MAKE" --no-print-directory -C "$(dirname "$MAKEFILE")" \
 151                 var.PKG_SOURCE
 152 )
 153
 154 "$MAKE" -C "$(dirname "$MAKEFILE")" download || {
 155         echo "Unable to download and pack updated Git sources." >&2
 156         exit 1
 157 }
 158
 159 DL_HASH=$(sha256sum "$TOPDIR/dl/$PKG_SOURCE") || {
 160         echo "Unable to determine archive checksum." >&2
 161         exit 1
 162 }
 163
 164 sed -i -r \
 165         -e "/PKG_MIRROR_HASH/s#\<$PKG_MIRROR_HASH\>#${DL_HASH%% *}#" \
 166         "$MAKEFILE"
 167
 168 git -C "$(dirname "$MAKEFILE")" commit \
 169         --signoff --no-edit \
 170         --message "$PKG_NAME: update to Git $COMMIT (${GIT_DATE_COMMIT% *})" \
 171         --message "$GIT_LOG" \
 172         "$(basename "$MAKEFILE")"
 173
 174 "$MAKE" --no-print-directory -C "$(dirname "$MAKEFILE")" check || {
 175         echo "WARNING: Package check failed for updated Makefile!"
 176         exit 1
 177 }