1 #!/usr/local/plan9/bin/rc
2 
3 git=git
4 show=false
5 fn gitshow {
6 	echo '%' git $*
7 	git $*
8 }
9 if(! ~ $#* 0 && ~ $1 -v) {
10 	git=gitshow
11 	show=true
12 	shift
13 }
14 	
15 if(~ $#* 0) {
16 	echo 'usage: codereview <command> <args>' >[1=2]
17 	exit usage
18 }
19 
20 if(~ $#PLAN9 0) {
21 	PLAN9=/usr/local/plan9
22 }
23 if(! test -d $PLAN9/lib/git) {
24 	echo 'codereview: cannot find $PLAN9/lib/git' >[1=2]
25 	exit git
26 }
27 
28 if(! test -e $PLAN9/.git/hooks/commit-msg) {
29 	if($show) {
30 		echo '% ln -s ../../lib/git/commit-msg.hook $PLAN9/.git/hooks/commit-msg'
31 	}
32 	ln -s ../../lib/git/commit-msg.hook $PLAN9/.git/hooks/commit-msg
33 }
34 
35 switch($1) {
36 case help
37 	9 man 1 codereview
38 
39 case pending
40 	shift
41 	if(! ~ $#* 0) {
42 		echo 'usage: codereview pending' >[1=2]
43 		exit usage
44 	}
45 	$git branch --list
46 
47 case create
48 	shift
49 	if(! ~ $#* 1) {
50 		echo 'usage: codereview create branchname' >[1=2]
51 		exit usage
52 	}
53 	branch=$1
54 	if(! git branch -l | 9 grep '\* master$') {
55 		echo 'codereview: create not on master branch; use codereview commit' >[1=2]
56 		exit master
57 	}
58 	if($show) {
59 		echo '% git branch '$branch' && git commit || git branch -d '$branch >[1=2]
60 	}
61 	git branch $branch && git commit $* || git branch -d $branch
62 
63 case commit
64 	shift
65 	if(git branch -l | 9 grep '\* master$') {
66 		echo 'codereview: commit on master branch; use codereview create <branchname>' >[1=2]
67 		exit master
68 	}
69 	if(~ `{git merge-base HEAD HEAD} `{git merge-base HEAD master}) {
70 		# first commit on branch, somehow.
71 		$git commit $*
72 		exit $status
73 	}
74 	$git commit --amend $*
75 	exit $status
76 
77 case upload
78 	if(git branch -l | 9 grep '\* master$') {
79 		echo 'codereview: upload on master branch' >[1=2]
80 		exit master
81 	}
82 	if(~ `{git merge-base HEAD HEAD} `{git merge-base HEAD master}) {
83 		# no commit on branch
84 		echo 'codereview: no commits yet on this feature branch' >[1=2]
85 		exit commit
86 	}
87 	if(! 9 grep 'machine plan9port-review.googlesource.com' $HOME/.netrc >/dev/null >[2=1]) {
88 		echo 'codereview: warning: cannot find plan9port-review in netrc' >[1=2]
89 	}
90 	$git push https://plan9port-review.googlesource.com/plan9 HEAD:refs/for/master >[2=1] | 9 sed 's/.*
//'
91 
92 case sync
93 	shift
94 	if(! ~ $#* 0) {
95 		echo 'usage: codereview sync' >[1=2]
96 		exit usage
97 	}
98 	$git fetch -q
99 	
100 	branch=`{git branch -l | 9 sed -n 's/^\* //p'}
101 	if(~ $branch master) {
102 		$git merge -q --ff-only origin/master
103 		exit $status
104 	}
105 
106 	if(~ `{git merge-base HEAD HEAD} `{git merge-base HEAD master}) {
107 		# no commit on branch
108 		git merge -q --ff-only origin/master
109 		exit $status
110 	}
111 
112 	# Exactly this commit in master. Fast-forward from master and delete this branch.
113 	if(git branch -r --contains HEAD | 9 grep '^ *origin/master$') {
114 		$git checkout -q master
115 		$git merge -q --ff-only origin/master
116 		$git branch -q -d $branch
117 		exit $status
118 	}
119 	
120 	changeid=`{git log -n 1 | 9 sed -n 's/^    Change-Id: //p'}
121 	if(~ $#changeid 0) {
122 		echo 'codereview: cannot find change id'
123 		exit changeid
124 	}
125 
126 	if(git log --grep 'Change-Id: '$changeid origin/master | 9 grep .) {
127 		# Something like this got submitted.
128 		$git checkout -q master
129 		$git merge -q --ff-only origin/master
130 		echo 'Change submitted but perhaps not identical to your copy.' >[1=2]
131 		echo 'To remove old copy:' git branch -d $branch >[1=2]
132 		exit 1
133 	}
134 	
135 	if(git branch -r --contains master | 9 grep '^ *origin/master$')
136 		$git branch -f master origin/master
137 	$git rebase -q origin/master
138 
139 case *
140 	echo 'codereview: unrecognized command '$1 >[1=2]
141 	exit usage
142 }