mirror of
https://codeberg.org/scip/tablizer.git
synced 2025-12-16 20:20:57 +01:00
117 lines
2.3 KiB
Go
117 lines
2.3 KiB
Go
/*
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Copyright © 2022 Thomas von Dein
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package lib
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import (
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"errors"
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"fmt"
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"io"
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"os"
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"codeberg.org/scip/tablizer/cfg"
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)
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const RWRR = 0755
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func ProcessFiles(conf *cfg.Config, args []string) error {
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fd, patterns, err := determineIO(conf, args)
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if err != nil {
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return err
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}
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if err := conf.PreparePattern(patterns); err != nil {
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return err
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}
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data, err := Parse(*conf, fd)
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if err != nil {
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return err
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}
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if err = ValidateConsistency(&data); err != nil {
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return err
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}
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err = PrepareSortColumns(conf, &data)
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if err != nil {
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return err
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}
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err = PrepareColumns(conf, &data)
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if err != nil {
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return err
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}
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if conf.Interactive {
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newdata, err := tableEditor(conf, &data)
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if err != nil {
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return err
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}
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data = *newdata
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}
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printData(os.Stdout, *conf, &data)
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return nil
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}
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func determineIO(conf *cfg.Config, args []string) (io.Reader, []*cfg.Pattern, error) {
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var filehandle io.Reader
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var patterns []*cfg.Pattern
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var haveio bool
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switch {
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case conf.InputFile == "-":
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filehandle = os.Stdin
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haveio = true
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case conf.InputFile != "":
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fd, err := os.OpenFile(conf.InputFile, os.O_RDONLY, RWRR)
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if err != nil {
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return nil, nil, fmt.Errorf("failed to read input file %s: %w", conf.InputFile, err)
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}
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filehandle = fd
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haveio = true
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}
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if !haveio {
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stat, _ := os.Stdin.Stat()
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if (stat.Mode() & os.ModeCharDevice) == 0 {
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// we're reading from STDIN, which takes precedence over file args
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filehandle = os.Stdin
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haveio = true
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}
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}
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if len(args) > 0 {
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patterns = make([]*cfg.Pattern, len(args))
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for i, arg := range args {
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patterns[i] = &cfg.Pattern{Pattern: arg}
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}
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}
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if !haveio {
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return nil, nil, errors.New("no file specified and nothing to read on stdin")
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}
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return filehandle, patterns, nil
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}
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