blob: 3217a061950264ff0b3ec4df074fd03a16e0d524 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
|
#!/bin/bash
# This script will locally construct a merge commit for a pull request on a
# github repository, inspect it, sign it and optionally push it.
# The following temporary branches are created/overwritten and deleted:
# * pull/$PULL/base (the current master we're merging onto)
# * pull/$PULL/head (the current state of the remote pull request)
# * pull/$PULL/merge (github's merge)
# * pull/$PULL/local-merge (our merge)
# In case of a clean merge that is accepted by the user, the local branch with
# name $BRANCH is overwritten with the merged result, and optionally pushed.
REPO="$(git config --get githubmerge.repository)"
if [[ "d$REPO" == "d" ]]; then
echo "ERROR: No repository configured. Use this command to set:" >&2
echo "git config githubmerge.repository <owner>/<repo>" >&2
echo "In addition, you can set the following variables:" >&2
echo "- githubmerge.host (default git@github.com)" >&2
echo "- githubmerge.branch (default master)" >&2
echo "- githubmerge.testcmd (default none)" >&2
exit 1
fi
HOST="$(git config --get githubmerge.host)"
if [[ "d$HOST" == "d" ]]; then
HOST="git@github.com"
fi
BRANCH="$(git config --get githubmerge.branch)"
if [[ "d$BRANCH" == "d" ]]; then
BRANCH="master"
fi
TESTCMD="$(git config --get githubmerge.testcmd)"
PULL="$1"
if [[ "d$PULL" == "d" ]]; then
echo "Usage: $0 pullnumber [branch]" >&2
exit 2
fi
if [[ "d$2" != "d" ]]; then
BRANCH="$2"
fi
# Initialize source branches.
git checkout -q "$BRANCH"
if git fetch -q "$HOST":"$REPO" "+refs/pull/$PULL/*:refs/heads/pull/$PULL/*"; then
if ! git log -q -1 "refs/heads/pull/$PULL/head" >/dev/null 2>&1; then
echo "ERROR: Cannot find head of pull request #$PULL on $HOST:$REPO." >&2
exit 3
fi
if ! git log -q -1 "refs/heads/pull/$PULL/merge" >/dev/null 2>&1; then
echo "ERROR: Cannot find merge of pull request #$PULL on $HOST:$REPO." >&2
exit 3
fi
else
echo "ERROR: Cannot find pull request #$PULL on $HOST:$REPO." >&2
exit 3
fi
if git fetch -q "$HOST":"$REPO" +refs/heads/"$BRANCH":refs/heads/pull/"$PULL"/base; then
true
else
echo "ERROR: Cannot find branch $BRANCH on $HOST:$REPO." >&2
exit 3
fi
git checkout -q pull/"$PULL"/base
git branch -q -D pull/"$PULL"/local-merge 2>/dev/null
git checkout -q -b pull/"$PULL"/local-merge
TMPDIR="$(mktemp -d -t ghmXXXXX)"
function cleanup() {
git checkout -q "$BRANCH"
git branch -q -D pull/"$PULL"/head 2>/dev/null
git branch -q -D pull/"$PULL"/base 2>/dev/null
git branch -q -D pull/"$PULL"/merge 2>/dev/null
git branch -q -D pull/"$PULL"/local-merge 2>/dev/null
rm -rf "$TMPDIR"
}
# Create unsigned merge commit.
(
echo "Merge pull request #$PULL"
echo ""
git log --no-merges --topo-order --pretty='format:%h %s (%an)' pull/"$PULL"/base..pull/"$PULL"/head
)>"$TMPDIR/message"
if git merge -q --commit --no-edit --no-ff -m "$(<"$TMPDIR/message")" pull/"$PULL"/head; then
if [ "d$(git log --pretty='format:%s' -n 1)" != "dMerge pull request #$PULL" ]; then
echo "ERROR: Creating merge failed (already merged?)." >&2
cleanup
exit 4
fi
else
echo "ERROR: Cannot be merged cleanly." >&2
git merge --abort
cleanup
exit 4
fi
# Run test command if configured.
if [[ "d$TESTCMD" != "d" ]]; then
# Go up to the repository's root.
while [ ! -d .git ]; do cd ..; done
if ! $TESTCMD; then
echo "ERROR: Running $TESTCMD failed." >&2
cleanup
exit 5
fi
# Show the created merge.
git diff pull/"$PULL"/merge..pull/"$PULL"/local-merge >"$TMPDIR"/diff
git diff pull/"$PULL"/base..pull/"$PULL"/local-merge
if [[ "$(<"$TMPDIR"/diff)" != "" ]]; then
echo "WARNING: merge differs from github!" >&2
read -p "Type 'ignore' to continue. " -r >&2
if [[ "d$REPLY" =~ ^d[iI][gG][nN][oO][rR][eE]$ ]]; then
echo "Difference with github ignored." >&2
else
cleanup
exit 6
fi
fi
read -p "Press 'd' to accept the diff. " -n 1 -r >&2
echo
if [[ "d$REPLY" =~ ^d[dD]$ ]]; then
echo "Diff accepted." >&2
else
echo "ERROR: Diff rejected." >&2
cleanup
exit 6
fi
else
# Verify the result.
echo "Dropping you on a shell so you can try building/testing the merged source." >&2
echo "Run 'git diff HEAD~' to show the changes being merged." >&2
echo "Type 'exit' when done." >&2
bash -i
read -p "Press 'm' to accept the merge. " -n 1 -r >&2
echo
if [[ "d$REPLY" =~ ^d[Mm]$ ]]; then
echo "Merge accepted." >&2
else
echo "ERROR: Merge rejected." >&2
cleanup
exit 7
fi
fi
# Sign the merge commit.
read -p "Press 's' to sign off on the merge. " -n 1 -r >&2
echo
if [[ "d$REPLY" =~ ^d[Ss]$ ]]; then
if [[ "$(git config --get user.signingkey)" == "" ]]; then
echo "WARNING: No GPG signing key set, not signing. Set one using:" >&2
echo "git config --global user.signingkey <key>" >&2
git commit -q --signoff --amend --no-edit
else
git commit -q --gpg-sign --amend --no-edit
fi
fi
# Clean up temporary branches, and put the result in $BRANCH.
git checkout -q "$BRANCH"
git reset -q --hard pull/"$PULL"/local-merge
cleanup
# Push the result.
read -p "Type 'push' to push the result to $HOST:$REPO, branch $BRANCH. " -r >&2
if [[ "d$REPLY" =~ ^d[Pp][Uu][Ss][Hh]$ ]]; then
git push "$HOST":"$REPO" refs/heads/"$BRANCH"
fi
|
