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 -v
46 
47 case create
48 	shift
49 	if(~ $#* 0) {
50 		echo 'usage: codereview create branchname' >[1=2]
51 		exit usage
52 	}
53 	branch=$1
54 	shift
55 	if(! git branch -l | 9 grep '\* master$' >/dev/null) {
56 		echo 'codereview: create not on master branch; use codereview commit' >[1=2]
57 		exit master
58 	}
59 	if($show) {
60 		echo '% git branch '$branch' && git commit || git branch -d '$branch >[1=2]
61 	}
62 	git branch $branch && git checkout $branch && git commit -a $* || git branch -d $branch
63 
64 case commit
65 	shift
66 	if(git branch -l | 9 grep '\* master$' >/dev/null) {
67 		echo 'codereview: commit on master branch; use codereview create <branchname>' >[1=2]
68 		exit master
69 	}
70 	if(~ `{git merge-base HEAD HEAD} `{git merge-base HEAD master}) {
71 		# first commit on branch, somehow.
72 		$git commit $*
73 		exit $status
74 	}
75 	$git commit --amend -a $*
76 	exit $status
77 
78 case upload
79 	if(git branch -l | 9 grep '\* master$' >/dev/null) {
80 		echo 'codereview: upload on master branch' >[1=2]
81 		exit master
82 	}
83 	if(~ `{git merge-base HEAD HEAD} `{git merge-base HEAD master}) {
84 		# no commit on branch
85 		echo 'codereview: no commits yet on this feature branch' >[1=2]
86 		exit commit
87 	}
88 	if(! 9 grep 'machine plan9port-review.googlesource.com' $HOME/.netrc >/dev/null >[2=1]) {
89 		echo 'codereview: warning: cannot find plan9port-review in netrc' >[1=2]
90 	}
91 	if(! git status | 9 grep 'nothing to commit, working directory clean' >/dev/null) {
92 		echo 'codereview: warning: local changes not yet committed' >[1=2]
93 		git status
94 	}
95 	$git push https://plan9port-review.googlesource.com/plan9 HEAD:refs/for/master >[2=1] | 9 sed 's/.*
//'
96 
97 case sync
98 	shift
99 	if(! ~ $#* 0) {
100 		echo 'usage: codereview sync' >[1=2]
101 		exit usage
102 	}
103 	$git fetch -q
104 	
105 	branch=`{git branch -l | 9 sed -n 's/^\* //p'}
106 	if(~ $branch master) {
107 		$git merge -q --ff-only origin/master
108 		exit $status
109 	}
110 
111 	if(~ `{git merge-base HEAD HEAD} `{git merge-base HEAD master}) {
112 		# no commit on branch
113 		git merge -q --ff-only origin/master
114 		exit $status
115 	}
116 
117 	# Exactly this commit in master. Fast-forward from master and delete this branch.
118 	if(git branch -r --contains HEAD | 9 grep '^ *origin/master$' >/dev/null) {
119 		$git checkout -q master
120 		$git merge -q --ff-only origin/master
121 		$git branch -q -d $branch
122 		exit $status
123 	}
124 	
125 	changeid=`{git log -n 1 | 9 sed -n 's/^    Change-Id: //p'}
126 	if(~ $#changeid 0) {
127 		echo 'codereview: cannot find change id'
128 		exit changeid
129 	}
130 
131 	if(git log --grep 'Change-Id: '$changeid origin/master | 9 grep . >/dev/null) {
132 		# Something like this got submitted.
133 		$git checkout -q master
134 		$git merge -q --ff-only origin/master
135 		echo 'Change submitted but perhaps not identical to your copy.' >[1=2]
136 		echo 'To remove old copy:' git branch -d $branch >[1=2]
137 		exit 1
138 	}
139 	
140 	if(git branch -r --contains master | 9 grep '^ *origin/master$' >/dev/null)
141 		$git branch -f master origin/master
142 	$git rebase -q origin/master
143 
144 case *
145 	echo 'codereview: unrecognized command '$1 >[1=2]
146 	exit usage
147 }