comparison vim/bundle/lawrencium/plugin/lawrencium.vim @ 51:a6bc310e7015

First version of lawrencium plugin.
author Ludovic Chabant <ludovic@chabant.com>
date Wed, 07 Dec 2011 23:32:39 -0800
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children 05fd225bd1a0
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50:30c36bc04926 51:a6bc310e7015
1 " lawrencium.vim - A Mercurial wrapper
2 " Maintainer: Ludovic Chabant <http://ludovic.chabant.com>
3 " Version: 0.1
4
5 if exists('g:loaded_lawrencium') || &cp
6 " finish
7 endif
8 let g:loaded_lawrencium = 1
9
10 if !exists('g:lawrencium_hg_executable')
11 let g:lawrencium_hg_executable = 'hg'
12 endif
13
14 if !exists('g:lawrencium_trace')
15 let g:lawrencium_trace = 0
16 endif
17
18 " Utility {{{
19
20 function! s:stripslash(path)
21 return fnamemodify(a:path, ':s?[\/]$??')
22 endfunction
23
24 function! s:trace(message)
25 if g:lawrencium_trace
26 let l:message = "lawrencium: " . a:message
27 endif
28 endfunction
29
30 function! s:throw(message)
31 let v:errmsg = "lawrencium: " . a:message
32 throw v:errmsg
33 endfunction
34
35 function! s:find_repo_root(path)
36 let l:path = s:stripslash(a:path)
37 while l:path != ""
38 if isdirectory(l:path . '/.hg/store')
39 return simplify(fnamemodify(l:path, ':p'))
40 endif
41 let l:path = fnamemodify(l:path, ':h')
42 endwhile
43 call s:throw("No Mercurial repository found above: " . a:path)
44 endfunction
45
46 " }}}
47
48 " Mercurial Repository {{{
49
50 " Let's define a Mercurial repo 'class' using prototype-based object-oriented
51 " programming.
52 "
53 " The prototype dictionary.
54 let s:HgRepo = {}
55
56 " Constructor
57 function! s:HgRepo.New(path) abort
58 let l:newRepo = copy(self)
59 let l:newRepo.root_dir = s:find_repo_root(a:path)
60 call s:trace("Built new Mercurial repository object at : " . l:newRepo.root_dir)
61 return l:newRepo
62 endfunction
63
64 " Sets up the current buffer with local variables
65 function! s:HgRepo.SetupBuffer() abort
66 if exists('b:mercurial_dir') && (b:mercurial_dir =~# '/^\s*$/')
67 unlet b:mercurial_dir
68 endif
69 if !exists('b:mercurial_dir')
70 let b:mercurial_dir = self.root_dir
71 endif
72 if exists('b:mercurial_dir')
73 call s:trace("Setting Mercurial directory to : " . expand(b:mercurial_dir))
74 silent doautocmd User Lawrencium
75 endif
76 endfunction
77
78 " Gets a full path given a repo-relative path
79 function! s:HgRepo.GetFullPath(path) abort
80 let l:path = self.root_dir
81 if a:path =~# '^/'
82 let l:path = s:stripslash(self.root_dir)
83 endif
84 return l:path . a:path
85 endfunction
86
87 " Runs a Mercurial command in the repo
88 function! s:HgRepo.RunCommand(command, ...) abort
89 let l:hg_command = g:lawrencium_hg_executable . ' --repository ' . shellescape(self.root_dir)
90 let l:hg_command = l:hg_command . ' ' . a:command . ' ' . join(a:000, ' ')
91 call s:trace("Running Mercurial command: " . l:hg_command)
92 return system(l:hg_command)
93 endfunction
94
95 " Repo cache map
96 let s:buffer_repos = {}
97
98 " Get a cached repo
99 function! s:hg_repo(...) abort
100 " Use the given path, or the mercurial directory of the current buffer.
101 if a:0 == 0
102 if exists('b:mercurial_dir')
103 let l:path = b:mercurial_dir
104 else
105 let l:path = s:find_repo_root(expand('%:p'))
106 let b:mercurial_dir = l:path
107 endif
108 else
109 let l:path = a:1
110 endif
111 " Find a cache repo instance, or make a new one.
112 if has_key(s:buffer_repos, l:path)
113 return get(s:buffer_repos, l:path)
114 else
115 let l:repo = s:HgRepo.New(l:path)
116 let s:buffer_repos[l:path] = l:repo
117 return l:repo
118 endif
119 endfunction
120
121 augroup lawrencium_detect
122 autocmd!
123 " autocmd BufNewFile,BufReadPost * call s:DetectMercurialRepository(expand('<amatch>:p'))
124 " autocmd VimEnter * if expand('<amatch>')==''|call s:DetectMercurialRepository(getcwd())|endif
125 augroup end
126
127 " }}}
128
129 " Commands {{{
130
131 let s:main_commands = []
132
133 function! s:AddMainCommand(command) abort
134 let s:main_commands += [a:command]
135 endfunction
136
137 function! s:DefineMainCommands()
138 for command in s:main_commands
139 execute 'command! -buffer '.command
140 endfor
141 endfunction
142
143 augroup lawrencium_main
144 autocmd!
145 autocmd User Lawrencium call s:DefineMainCommands()
146 augroup end
147
148 " }}}
149
150 " HgExecute {{{
151
152 function! s:HgExecute(...) abort
153 let l:repo = s:hg_repo()
154 echo call(l:repo.RunCommand, a:000, l:repo)
155 endfunction
156
157 call s:AddMainCommand("-nargs=* Hg :execute s:HgExecute(<f-args>)")
158
159 " }}}
160
161 " HgStatus {{{
162
163 function! s:HgStatus() abort
164 echo s:hg_repo().RunCommand('status')
165 endfunction
166
167 call s:AddMainCommand("HgStatus :execute s:HgStatus()")
168
169 " }}}
170
171 " Hgcd, Hglcd {{{
172
173 function! s:ListRepoDirs(ArgLead, CmdLine, CursorPos) abort
174 let l:root_dir = s:hg_repo().root_dir
175 if (a:ArgLead =~# '^/')
176 let l:root_dir = s:stripslash(l:root_dir)
177 endif
178 let l:matches = split(glob(l:root_dir . a:ArgLead . '*'), '\n')
179 let l:strip_len = len(l:root_dir)
180 call map(l:matches, 'v:val[l:strip_len : -1] . "/"')
181 return l:matches
182 endfunction
183
184 call s:AddMainCommand("-bang -nargs=? -complete=customlist,s:ListRepoDirs Hgcd :cd<bang> `=s:hg_repo().GetFullPath(<q-args>)`")
185 call s:AddMainCommand("-bang -nargs=? -complete=customlist,s:ListRepoDirs Hglcd :lcd<bang> `=s:hg_repo().GetFullPath(<q-args>)`")
186
187 " }}}
188
189 " Autoload Functions {{{
190
191 function! lawrencium#statusline(...)
192 if !exists('b:mercurial_dir')
193 return ''
194 endif
195 let l:summary = s:hg_repo().RunCommand('summary')
196 let l:parent_rev = matchstr(l:summary, 'parent\: \d+\:[0-9a-f]+')
197 let l:branch = matchstr(l:summary, 'branch\: [\d\w\-_\.]+')
198 return l:branch . ', ' . l:parent_rev
199 endfunction
200
201 " }}}
202