xref: /freebsd/tools/tools/git/git-arc.1 (revision fe75646a0234a261c0013bf1840fdac4acaf0cec)
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27.Dd May 5, 2023
28.Dt GIT-ARC 1
29.Os
30.Sh NAME
31.Nm git arc
32.Nd a wrapper to improve integration between git and arcanist
33.Sh SYNOPSIS
34.Nm
35.Cm create
36.Op Fl l
37.Op Fl r Ar reviewer1 Ns Op Cm \&, Ns Ar reviewer2 ...
38.Op Fl s Ar subscriber1 Ns Op Cm \&, Ns Ar subscriber2 ...
39.Op Fl p Ar parent
40.Op Ar commit ... Ns | Ns Ar commit-range
41.Nm
42.Cm list Ar commit ... Ns | Ns Ar commit-range
43.Nm
44.Cm patch Ar diff1 Ns Op Cm \&, Ns Ar diff2
45.Nm
46.Cm stage
47.Op Fl b Ar branch
48.Op Ar commit ... Ns | Ns Ar commit-range
49.Nm
50.Cm update
51.Op Fl m Ar message
52.Op Ar commit ... Ns | Ns Ar commit-range
53.Sh DESCRIPTION
54The
55.Nm
56utility creates and manages
57.Fx
58Phabricator reviews based on git commits.
59.Pp
60Git
61assumes a one-to-one relationship between git commits and
62Differential Revisions, and the Differential Revision title must match
63the summary line of the corresponding commit.
64In particular, the commit summaries must be unique across all open
65Differential Revisions authored by the submitter.
66.Pp
67The first parameter must be a verb.
68The available verbs are:
69.Bl -tag -width "create"
70.It Cm create
71Create new Differential Revisions from the specified commits.
72Accepts options:
73.Bl -tag -width subscriber
74.It Fl l
75Before processing commit(s) display list of commits to be processed
76and wait for confirmation.
77.It Fl r Ar reviewer
78Add one or more reviewers, separated by commas, to revision(s) being created.
79Argument(s) must be existing Phabricator user or group.
80.It Fl s Ar subscriber
81Add one or more subscribers, separated by commas, to revision(s) being created.
82Each argument must be an existing Phabricator user or group.
83.It Fl p Ar parent
84Specify the parent of the first commit in the list.
85This is useful when adding more commits on top of the already existing
86stack in Phabricator.
87.El
88.It Cm list
89Print the associated Differential Revisions for the specified commits.
90.It Cm patch
91Try to apply a patch from a Differential Revision to the currently
92checked out tree.
93.It Cm stage
94Prepare a series of commits to be pushed to the upstream
95.Fx
96repository.
97The commits are cherry-picked to a branch (by default the
98.Dq main
99branch), review tags are added to the commit log message, and
100the log message is opened in an editor for any last-minute
101updates.
102The commits need not have associated Differential
103Revisions.
104.It Cm update
105Synchronize the Differential Revisions associated with the
106specified commits.
107Currently only the diff is updated; the review description and other
108metadata are not synchronized.
109If a message is specified with
110.Fl m ,
111that message is added as a note to the Differential Revision.
112If no message is supplied,
113the user's editor will be opened to provide an update message for
114each revision.
115If an empty message is supplied via
116.Fl m ,
117then no notes will be added when updating Differential Revisions.
118.El
119.Sh CONFIGURATION
120These are manipulated by
121.Nm git-config :
122.Bl -tag -width "arc.assume_yes"
123.It Va arc.assume_yes
124Assume a
125.Dq yes
126answer to all prompts instead of
127prompting the user.
128Equivalent to the
129.Fl y
130flag.
131Defaults to false.
132.It Va arc.browse
133Try to open newly created reviews in a browser tab.
134Defaults to false.
135.It Va arc.list
136Always use
137.Dq list mode
138.Pq Fl l
139with create.
140In this mode, the list of git revisions to create reviews for
141is listed with a single prompt before creating reviews.
142The diffs for individual commits are not shown.
143Defaults to false.
144.It Va arc.verbose
145Always use verbose output.
146Equivalent to the
147.Fl v
148flag.
149Defaults to false.
150.El
151.Sh EXAMPLES
152The typical end-to-end usage looks something like this.
153.Pp
154Commit changes with a message and create a Differential Review:
155.Bd -literal -offset indent
156$ git commit -m "kern: Rewrite in Rust"
157$ git arc create HEAD
158.Ed
159.Pp
160Make changes to the diff based on review feedback, then amend the
161changes to the existing commit and update the Differential Review:
162.Bd -literal -offset indent
163$ git commit --amend
164$ git arc update HEAD
165.Ed
166.Pp
167Now that all reviewers are happy, it is time to stage the commit and
168push it:
169.Bd -literal -offset indent
170$ git arc stage HEAD
171$ git push freebsd HEAD:main
172.Ed
173.Pp
174Create a Phabricator review using the contents of the most recent
175commit in your git checkout:
176.Bd -literal -offset indent
177$ git arc create -r markj HEAD
178.Ed
179.Pp
180The commit title is used as the review title, the commit log
181message is used as the review description, and
182.Aq Mt markj@FreeBSD.org
183is added as a reviewer.
184.Pp
185Create a series of Phabricator reviews for each of HEAD~2, HEAD~ and
186HEAD:
187.Bd -literal -offset indent
188$ git arc create HEAD~3..HEAD
189.Ed
190.Pp
191Pairs of consecutive commits are linked into a patch stack.
192Note that the first commit in the specified range is excluded.
193.Pp
194Create a series of separate reviews for each of the following commits:
195.Bd -literal -offset indent
196$ git arc create b409afcfedcdda ca03ed1345aff0
197.Ed
198.Pp
199Update the review corresponding to commit b409afcfedcdda:
200.Bd -literal -offset indent
201$ git arc update b409afcfedcdda
202.Ed
203.Pp
204The title of the commit must be the same as it was when the review
205was created.
206Note that the review description is not automatically updated.
207.Pp
208Apply the patch in review D12345 to the currently checked-out tree,
209and stage it:
210.Bd -literal -offset indent
211$ git arc patch D12345
212.Ed
213.Pp
214List the status of reviews for all the commits in the branch
215.Dq feature :
216.Bd -literal -offset indent
217$ git arc list main..feature
218.Ed
219.Sh SEE ALSO
220.Xr build 7 ,
221.Xr development 7
222.Sh HISTORY
223The
224.Nm
225utility appeared in the src tools collection in
226.Fx 14.0 .
227.Sh AUTHORS
228The
229.Nm
230utility was written by
231.An -nosplit
232.An Mark Johnston Aq Mt markj@FreeBSD.org
233and the manual page was written by
234.An Daniel Ebdrup Jensen Aq Mt debdrup@FreeBSD.org .
235