Initial development

Author: gvalkov

.gitignore

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+# Project
+node_modules/
+/tailon
+/gin-bin
+
+### Editors ###
+*~
+\#*\#
+.\#*
+[._]*.s[a-v][a-z]
+[._]*.sw[a-p]
+[._]s[a-rt-v][a-z]
+[._]ss[a-gi-z]
+[._]sw[a-p]
+
+### Go ###
+# Binaries for programs and plugins
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+
+# Test binary, build with `go test -c`
+*.test
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out
+

README.md

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+# Tailon-next
+
+The next iteration of the [tailon] log file viewer and [wtee] pipe viewer.
+__Currently under slow but steady development__.
+
+## What's new?
+
+Tailon-next is a full rewrite of the original tailon with the following goals in mind:
+
+* Make maintenance easier for me.
+* Remove unwanted features and fix poor design choices.
+* Learn more stuff.
+
+In terms of tech, the following has changed:
+
+* Backend from Python+Tornado to Go.
+* Frontend from a very-custom and specific Typescript solution to a simple ES5 + vue.js
+  (mostly for data-binding).
+* Simplified asset pipeline (a short Makefile).
+* Config file is now toml.
+
+## License
+
+Tailon is released under the terms of the [Apache 2.0 License].
+
+[tailon]: https://github.com/gvalkov/tailon
+[wtee]:   https://github.com/gvalkov/wtee
+[Apache 2.0 License]: LICENSE

filelister.go

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+package main
+
+import (
+	"os"
+	"path"
+	"path/filepath"
+	"time"
+)
+
+type ListEntry struct {
+	Path    string    `json:"path"`
+	Alias   string    `json:"alias"`
+	Size    int64     `json:"size"`
+	ModTime time.Time `json:"mtime"`
+	Exists  bool      `json:"exists"`
+}
+
+func fileInfo(path string) *ListEntry {
+	entry := ListEntry{}
+	entry.Path = path
+
+	info, err := os.Stat(path)
+	if !os.IsNotExist(err) {
+		entry.Exists = true
+		entry.Size = info.Size()
+		entry.ModTime = info.ModTime()
+	}
+
+	return &entry
+}
+
+func createListing(filespecs []FileSpec) map[string][]*ListEntry {
+	res := make(map[string][]*ListEntry)
+
+	for _, spec := range filespecs {
+		group := "__default__"
+		if spec.Group != "" {
+			group = spec.Group
+		}
+
+		switch spec.Type {
+		case "file":
+			entry := fileInfo(spec.Path)
+			if spec.Alias != "" {
+				entry.Alias = spec.Alias
+			} else {
+				entry.Alias = entry.Path
+			}
+			res[group] = append(res[group], entry)
+		case "glob":
+			matches, _ := filepath.Glob(spec.Path)
+			for _, match := range matches {
+				entry := fileInfo(match)
+				if spec.Alias != "" {
+					entry.Alias = path.Join(spec.Alias, path.Base(entry.Path))
+				} else {
+					cwd, _ := os.Getwd()
+					rel, _ := filepath.Rel(cwd, entry.Path)
+					entry.Alias = rel
+				}
+				res[group] = append(res[group], entry)
+			}
+		}
+	}
+
+	return res
+}

frontend/Makefile

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+CMD_TYPESCRIPT := node_modules/typescript/bin/tsc
+CMD_POSTCSS    := node_modules/postcss-cli/bin/postcss
+CMD_NODESASS   := node_modules/node-sass/bin/node-sass
+
+DISTDIR ?= dist
+
+EXTERNAL_JS := \
+	node_modules/vue/dist/vue.js \
+	node_modules/vue-multiselect/dist/vue-multiselect.min.js \
+	node_modules/sockjs-client/dist/sockjs.js \
+	node_modules/html5shiv/dist/html5shiv.js \
+	node_modules/@fortawesome/fontawesome-free/js/all.js \
+	node_modules/vue-loading-overlay/dist/vue-loading.min.js
+
+EXTERNAL_CSS := \
+	node_modules/normalize-css/normalize.css \
+	node_modules/vue-multiselect/dist/vue-multiselect.min.css \
+	node_modules/vue-loading-overlay/dist/vue-loading.min.css
+
+INTERNAL_JS := \
+	js/util.js \
+	js/main.js
+
+INTERNAL_CSS := \
+	scss/vars.scss \
+	scss/main.scss
+
+ALL_TARGETS := \
+	$(DISTDIR)/3rdparty.js \
+	$(DISTDIR)/3rdparty.css \
+	$(DISTDIR)/main.css \
+	$(DISTDIR)/main.js
+
+
+all: $(ALL_TARGETS)
+
+clean:
+	-rm -f $(ALL_TARGETS)
+
+$(DISTDIR)/3rdparty.js: $(EXTERNAL_JS)
+	@cat $(EXTERNAL_JS) > $@
+
+$(DISTDIR)/main.js: $(INTERNAL_JS)
+	cat $(INTERNAL_JS) > $@
+
+$(DISTDIR)/main.css: $(INTERNAL_CSS)
+	$(CMD_NODESASS) --quiet --output-style compressed scss/main.scss > $@
+
+$(DISTDIR)/3rdparty.css: $(EXTERNAL_CSS)
+	@cat $? > $@
+
+watch:
+	@echo $(INTERNAL_CSS) $(EXTERNAL_CSS) $(EXTERNAL_JS) $(INTERNAL_JS) | tr ' ' '\n' | entr make
+
+
+.PHONY: all clean watch