[vis] add simple plugin to asynchronously run build commands

1 files changed, 52 insertions, 0 deletions

diff --git a/config/vis/plugins/vis-build/init.lua b/config/vis/plugins/vis-build/init.lua
new file mode 100644
index 0000000..0558c39
--- /dev/null
+++ b/config/vis/plugins/vis-build/init.lua
@@ -0,0 +1,52 @@
+local M = {}
+M.get_default_build_cmd = function() return 'make' end
+
+local build_id = 0
+local builds = {}
+
+M.new_build = function(cmd)
+    build_id = build_id + 1
+    local build_name = 'build' .. build_id
+    local build_fd = vis:communicate(build_name, cmd)
+    local build = {fd = build_fd, out = '', err = '', cmd = cmd}
+    builds[build_name] = build
+end
+
+vis.events.subscribe(vis.events.PROCESS_RESPONSE,
+                     function(name, event, code, msg)
+    local build = builds[name]
+    if not build then return end
+
+    if event == 'EXIT' or event == 'SIGNAL' then
+        if code ~= 0 then
+            vis:message('build: ' .. name .. ' cmd: ' .. build.cmd)
+            if event == 'EXIT' then
+                vis:message('failed with: ' .. code)
+            else
+                vis:message('got signal: ' .. code)
+            end
+            vis:message('stdout:\n' .. build.out)
+            vis:message('stderr:\n' .. build.err)
+        else
+            vis:info(name .. ' done')
+        end
+        builds[name] = nil
+    end
+
+    if event == 'STDOUT' then
+        build.out = build.out .. msg
+    elseif event == 'STDERR' then
+        build.err = build.err .. msg
+    end
+end)
+
+vis:command_register('build', function(argv)
+    M.new_build(argv[1] or M.get_default_build_cmd())
+end, 'Asynchronously build the current file or project')
+
+vis:map(vis.modes.NORMAL, '<M-b>', function()
+    vis:command('build')
+    return 0
+end, 'Asynchronously build the current file or project')
+
+return M