307 lines
10 KiB
VimL
307 lines
10 KiB
VimL
" usage example:
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"
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" call nix#ExportPluginsForNix({'path_to_nixpkgs': '/etc/nixos/nixpkgs', 'names': ["vim-addon-manager", "vim-addon-nix"], 'cache_file': 'cache'})
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let s:plugin_root = expand('<sfile>:h:h')
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fun! nix#ToNixAttrName(s) abort
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return nix#ToNixName(a:s)
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endf
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fun! nix#ToNixName(s) abort
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return substitute(substitute(a:s, '[:/.]', '-', 'g'), 'github-', '', 'g')
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endf
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fun! s:System(...)
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let args = a:000
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let r = call('vam#utils#System', args)
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if r is 0
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throw "command ".join(args, '').' failed'
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else
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return r
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endif
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endf
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fun! nix#DependenciesFromCheckout(opts, name, repository, dir)
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" check for dependencies
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" vam#PluginDirFromName(a:name)
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let info = vam#ReadAddonInfo(vam#AddonInfoFile(a:dir, a:name))
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return keys(get(info, 'dependencies', {}))
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endf
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" without deps
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fun! nix#NixDerivation(opts, name, repository) abort
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let n_a_name = nix#ToNixAttrName(a:name)
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let n_n_name = nix#ToNixName(a:name)
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let type = get(a:repository, 'type', '')
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let created_notice = " # created by nix#NixDerivation"
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let ancf = s:plugin_root.'/additional-nix-code/'.a:name
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let additional_nix_code = file_readable(ancf) ? join(readfile(ancf), "\n") : ""
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if type == 'git'
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" should be using shell abstraction ..
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echo 'fetching '. a:repository.url
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let s = s:System('$ --fetch-submodules $ 2>&1',a:opts.nix_prefetch_git, a:repository.url)
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let rev = matchstr(s, 'git revision is \zs[^\n\r]\+\ze')
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let sha256 = matchstr(s, 'hash is \zs[^\n\r]\+\ze')
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let dir = matchstr(s, 'path is \zs[^\n\r]\+\ze')
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let date = matchstr(s, 'Commit date is \zs[0-9-]\+\ze')
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let dependencies = nix#DependenciesFromCheckout(a:opts, a:name, a:repository, dir)
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return {'n_a_name': n_a_name, 'n_n_name': n_n_name, 'dependencies': dependencies, 'derivation': join([
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\ ' '.n_a_name.' = buildVimPluginFrom2Nix {'.created_notice,
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\ ' name = "'.n_n_name.'-'.date.'";',
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\ ' src = fetchgit {',
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\ ' url = "'. a:repository.url .'";',
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\ ' rev = "'.rev.'";',
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\ ' sha256 = "'.sha256.'";',
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\ ' };',
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\ ' dependencies = ['.join(map(copy(dependencies), "'\"'.nix#ToNixAttrName(v:val).'\"'")).'];',
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\ additional_nix_code,
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\ ' };',
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\ '',
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\ '',
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\ ], "\n")}
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elseif type == 'hg'
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" should be using shell abstraction ..
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echo 'fetching '. a:repository.url
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let s = s:System('$ $ 2>&1',a:opts.nix_prefetch_hg, a:repository.url)
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let rev = matchstr(s, 'hg revision is \zs[^\n\r]\+\ze')
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let sha256 = matchstr(s, 'hash is \zs[^\n\r]\+\ze')
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let dir = matchstr(s, 'path is \zs[^\n\r]\+\ze')
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let dependencies = nix#DependenciesFromCheckout(a:opts, a:name, a:repository, dir)
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return {'n_a_name': n_a_name, 'n_n_name': n_n_name, 'dependencies': dependencies, 'derivation': join([
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\ ' '.n_a_name.' = buildVimPluginFrom2Nix {'.created_notice,
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\ ' name = "'.n_n_name.'";',
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\ ' src = fetchhg {',
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\ ' url = "'. a:repository.url .'";',
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\ ' rev = "'.rev.'";',
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\ ' sha256 = "'.sha256.'";',
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\ ' };',
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\ ' dependencies = ['.join(map(copy(dependencies), "'\"'.nix#ToNixAttrName(v:val).'\"'")).'];',
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\ additional_nix_code,
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\ ' };',
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\ '',
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\ '',
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\ ], "\n")}
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elseif type == 'archive'
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let sha256 = split(s:System('nix-prefetch-url $ 2>/dev/null', a:repository.url), "\n")[0]
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" we should unpack the sources, look for the addon-info.json file ..
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" however most packages who have the addon-info.json file also are on
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" github thus will be of type "git" instead. The dependency information
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" from vim-pi is encoded in the reposiotry. Thus this is likely to do the
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" right thing most of the time.
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let addon_info = get(a:repository, 'addon-info', {})
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let dependencies = keys(get(addon_info, 'dependencies', {}))
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return {'n_a_name': n_a_name, 'n_n_name': n_n_name, 'dependencies': dependencies, 'derivation': join([
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\ ' '.n_a_name.' = buildVimPluginFrom2Nix {'.created_notice,
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\ ' name = "'.n_n_name.'";',
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\ ' src = fetchurl {',
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\ ' url = "'. a:repository.url .'";',
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\ ' name = "'. a:repository.archive_name .'";',
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\ ' sha256 = "'.sha256.'";',
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\ ' };',
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\ ' buildInputs = [ unzip ];',
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\ ' dependencies = ['.join(map(copy(dependencies), "'\"'.nix#ToNixAttrName(v:val).'\"'")).'];',
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\ ' meta = {',
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\ ' homepage = "http://www.vim.org/scripts/script.php?script_id='.a:repository.vim_script_nr.'";',
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\ ' };',
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\ addon_info == {} ? '' : (' addon_info = '.nix#ToNix(string(addon_info), [], "").';'),
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\ additional_nix_code,
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\ ' };',
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\ '',
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\ '',
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\ ], "\n")}
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else
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throw a:name.' TODO: implement source '.string(a:repository)
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endif
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endf
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" also tries to handle dependencies
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fun! nix#AddNixDerivation(opts, cache, name, ...) abort
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if has_key(a:cache, a:name) | return | endif
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let repository = a:0 > 0 ? a:1 : {}
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let name = a:name
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if repository == {}
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call vam#install#LoadPool()
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let list = matchlist(a:name, 'github:\([^/]*\)\%(\/\(.*\)\)\?$')
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if len(list) > 0
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if '' != list[2]
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let name = list[2]
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let repository = { 'type': 'git', 'owner': list[1], 'repo': list[2], 'url': 'https://github.com/'.list[1].'/'.list[2] }
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else
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let name = list[1]
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let repository = { 'type': 'git', 'owner': list[1], 'repo': 'vim-addon-'.list[1], 'url': 'https://github.com/'.list[1].'/vim-addon-'.list[1] }
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endif
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else
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let repository = get(g:vim_addon_manager.plugin_sources, a:name, {})
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if repository == {}
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throw "repository ".a:name." unkown!"
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else
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if repository.url =~ 'github'
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let owner = matchstr(repository.url, 'github.com/\zs.\+\ze/')
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let repo = matchstr(repository.url, '\/\zs[^\/]\+\ze$')
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let url = repository.url
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let repository = { 'type': 'git', 'owner': owner, 'repo': repo, 'url': url }
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endif
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endif
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endif
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endif
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let a:cache[a:name] = nix#NixDerivation(a:opts, name, repository)
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" take known dependencies into account:
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let deps = get(a:cache[a:name], 'dependencies', [])
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call extend(a:opts.names_to_process, deps)
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call extend(a:opts.names_to_export, deps)
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endfun
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fun! nix#TopNixOptsByParent(parents)
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if (a:parents == [])
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return {'ind': ' ', 'next_ind': ' ', 'sep': "\n"}
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else
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return {'ind': '', 'next_ind': '', 'sep': ' '}
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endif
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endf
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fun! nix#ToNix(x, parents, opts_fun) abort
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let opts = a:opts_fun == "" ? "" : call(a:opts_fun, [a:parents])
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let next_parents = [a:x] + a:parents
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let seps = a:0 > 1 ? a:2 : []
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let ind = get(opts, 'ind', '')
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let next_ind = get(opts, 'next_ind', ind.' ')
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let sep = get(opts, 'sep', ind.' ')
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if type(a:x) == type("")
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return "''". substitute(a:x, '[$]', '$$', 'g')."''"
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elseif type(a:x) == type({})
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let s = ind."{".sep
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for [k,v] in items(a:x)
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let s .= '"'.k.'" = '.nix#ToNix(v, next_parents, a:opts_fun).";".sep
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unlet k v
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endfor
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return s.ind."}"
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" let s = ind."{\n"
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" for [k,v] in items(a:x)
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" let s .= next_ind . nix#ToNix(k).' = '.nix#ToNix(v, next_ind)."\n"
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" unlet k v
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" endfor
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" return s.ind."}\n"
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elseif type(a:x) == type([])
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let s = ind."[".sep
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for v in a:x
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let s .= next_ind . nix#ToNix(v, next_parents, a:opts_fun)."".sep
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unlet v
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endfor
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return s.ind."]"
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endif
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endf
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" with dependencies
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" opts.cache_file (caches the checkout and dependency information
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" opts.path_to_nixpkgs or opts.nix_prefetch_{git,hg}
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" opts.plugin_dictionaries: list of any
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" - string
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" - dictionary having key name or names
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" This is so that plugin script files can be loaded/ merged
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fun! nix#ExportPluginsForNix(opts) abort
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let cache_file = get(a:opts, 'cache_file', '')
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let opts = a:opts
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" set nix_prefetch_* scripts
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for scm in ['git', 'hg']
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if !has_key(opts, 'nix_prefetch_'.scm)
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let opts['nix_prefetch_'.scm] = a:opts.path_to_nixpkgs.'/pkgs/build-support/fetch'.scm.'/nix-prefetch-'.scm
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endif
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endfor
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" create list of names from dictionaries
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let a:opts.names_to_process = []
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for x in a:opts.plugin_dictionaries
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if type(x) == type('')
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call add(opts.names_to_process, x)
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elseif type(x) == type({}) && has_key(x, 'name')
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call add(opts.names_to_process, x.name)
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elseif type(x) == type({}) && has_key(x, 'names')
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call extend(opts.names_to_process, x.names)
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else
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throw "unexpected"
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endif
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unlet x
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endfor
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let a:opts.names_to_export = a:opts.names_to_process
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let cache = (cache_file == '' || !filereadable(cache_file)) ? {} : eval(readfile(cache_file)[0])
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let failed = {}
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while len(opts.names_to_process) > 0
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let name = opts.names_to_process[0]
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if get(opts, 'try_catch', 1)
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try
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call nix#AddNixDerivation(opts, cache, name)
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catch /.*/
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echom 'failed : '.name.' '.v:exception
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let failed[name] = v:exception
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endtry
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else
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call nix#AddNixDerivation(opts, cache, name)
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endif
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let opts.names_to_process = opts.names_to_process[1:]
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endwhile
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echom join(keys(failed), ", ")
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echom string(failed)
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if cache_file != ''
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call writefile([string(cache)], cache_file)
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endif
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enew
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let uniq = {}
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for x in a:opts.names_to_export
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let uniq[x] = 1
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endfor
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for k in sort(keys(uniq))
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call append('$', split(cache[k].derivation,"\n"))
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endfor
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" for VAM users output vam.pluginDictionaries which can be fed to
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" vim_customizable.customize.vimrc.vam.pluginDictionaries
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call append('$', ["", "", "", '# vam.pluginDictionaries'])
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let ns = []
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for x in a:opts.plugin_dictionaries
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if type(x) == type("")
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call add(ns, nix#ToNixAttrName(x))
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elseif type(x) == type({})
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if has_key(x, 'name')
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call add(ns, extend({'name': nix#ToNixAttrName(x.name)}, x, "keep"))
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elseif has_key(x, 'names')
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call add(ns, extend({'names': map(copy(x.names), 'nix#ToNixAttrName(v:val)')}, x, "keep"))
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else
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throw "unexpected"
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endif
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else
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throw "unexpected"
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endif
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unlet x
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endfor
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call append('$', split(nix#ToNix(ns, [], 'nix#TopNixOptsByParent'), "\n"))
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" failures:
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for [k,v] in items(failed)
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call append('$', ['# '.k.', failure: '.v])
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unlet k v
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endfor
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endf
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