github-apply.sh

   1 #!/bin/bash
   2
   3 # Github repository, just the name/repo part, no .git suffix, no base url!
   4 REPO="openwrt/openwrt"
   5
   6 # Your repository token, generate this token at your profile page:
   7 # - Navigate to https://github.com/settings/tokens
   8 # - Click on "Generate new token"
   9 # - Enter a description, e.g. "pr.sh" and pick the "repo" scope
  10 # - Hit "Generate token"
  11 #TOKEN="d41d8cd98f00b204e9800998ecf8427e"
  12
  13 # Default close comment
  14 COMMENT="Pulled into my staging tree at https://git.openwrt.org/openwrt/staging/$(whoami).git"
  15
  16 PRID="$1"
  17 BRANCH="${2:-master}"
  18
  19 if [ -z "$PRID" -o -n "${PRID//[0-9]*/}" ]; then
  20         echo "Usage: $0 <PR-ID> [rebase-branch]" >&2
  21         exit 1
  22 fi
  23
  24 if [ -z "$(git branch --list "$BRANCH")" ]; then
  25         echo "Given rebase branch '$BRANCH' does not exist!" >&2
  26         exit 2
  27 fi
  28
  29 if ! git fetch "https://github.com/$REPO.git" "pull/$PRID/head:PR$PRID"; then
  30         echo "Failed fetch PR #$PRID!" >&2
  31         exit 3
  32 fi
  33
  34 git checkout "PR$PRID"
  35
  36 if ! git rebase "$BRANCH"; then
  37         echo ""                                                      >&2
  38         echo "Cannot automatically rebase 'PR$PRID' onto '$BRANCH'!" >&2
  39         echo "Fix conflicts manually and continue with:"             >&2
  40         echo ""                                                      >&2
  41         echo "  git checkout $BRANCH"                                >&2
  42         echo "  git merge --ff-only PR$PRID"                         >&2
  43         echo "  git branch -D PR$PRID"                               >&2
  44         echo ""                                                      >&2
  45         echo "Alternatively cancel the whole operation with:"        >&2
  46         echo ""                                                      >&2
  47         echo "  git rebase --abort"                                  >&2
  48         echo "  git checkout $BRANCH"                                >&2
  49         echo "  git branch -D PR$PRID"                               >&2
  50         echo ""                                                      >&2
  51 fi
  52
  53 git checkout "$BRANCH"
  54
  55 oldhead="$(git log -1 --format="%H")"
  56
  57 if ! git merge --ff-only "PR$PRID"; then
  58         echo ""                                                       >&2
  59         echo "Failed to fast-forward merge 'PR$PRID' into '$BRANCH'!" >&2
  60         echo "Aborting, but leaving branch 'PR$PRID' behind."         >&2
  61         exit 5
  62 fi
  63
  64 git branch -D "PR$PRID"
  65
  66 if [ -n "$TOKEN" ]; then
  67         echo ""
  68         echo "Enter a comment and hit <enter> to close the PR at Github automatically now."
  69         echo "Hit <ctrl>-<c> to exit."
  70         echo ""
  71         echo "If you do not provide a comment, the default will be: "
  72         echo "[$COMMENT]"
  73
  74         echo -n "Comment > "
  75         read usercomment
  76
  77         echo "Closing PR..."
  78
  79         comment="${usercomment:-$COMMENT}"
  80         comment="${comment//\\/\\\\}"
  81         comment="${comment//\"/\\\"}"
  82         comment="$(printf '{"body":"%s"}' "$comment")"
  83
  84         if ! curl -s -o /dev/null -w "%{http_code} %{url_effective}\\n" --user "$TOKEN:x-oauth-basic" --request POST --data "$comment" "https://api.github.com/repos/$REPO/issues/$PRID/comments" || \
  85            ! curl -s -o /dev/null -w "%{http_code} %{url_effective}\\n" --user "$TOKEN:x-oauth-basic" --request PATCH --data '{"state":"closed"}' "https://api.github.com/repos/$REPO/pulls/$PRID"
  86         then
  87                 echo ""                                                     >&2
  88                 echo "Something failed while trying to close the PR via "   >&2
  89                 echo "the Github API, please review the state manually at " >&2
  90                 echo "https://github.com/$REPO/pull/$PRID"                  >&2
  91                 exit 6
  92         fi
  93 fi
  94
  95 echo ""
  96 echo "The PR has been merged!"
  97 echo "Consider pushing your '$BRANCH' branch to its remote now."
  98
  99 exit 0