tree-wide: Use %q instead of %v as appropriate in error messages

4 files changed, 16 insertions, 16 deletions

diff --git a/cmd_command.go b/cmd_command.go
index 32292d3..f31860b 100644
--- a/cmd_command.go
+++ b/cmd_command.go
@@ -100,7 +100,7 @@ func (CmdCommit) fiCmdRead(fir fiReader) (cmd Cmd, err error) {
 
 	// 'committer' (SP <name>)? SP LT <email> GT SP <when> LF
 	if !strings.HasPrefix(ez.PeekLine(), "committer ") {
-		ez.Errcheck(errors.Errorf("commit: expected committer command: %v", ez.ReadLine()))
+		ez.Errcheck(errors.Errorf("commit: expected committer command: %q", ez.ReadLine()))
 	}
 	c.Committer, err = ParseIdent(trimLinePrefix(ez.ReadLine(), "committer "))
 	ez.Errcheck(err)
@@ -189,7 +189,7 @@ func (CmdTag) fiCmdRead(fir fiReader) (cmd Cmd, err error) {
 
 	// 'from' SP <commit-ish> LF
 	if !strings.HasPrefix(ez.PeekLine(), "from ") {
-		ez.Errcheck(errors.Errorf("tag: expected from command: %v", ez.ReadLine()))
+		ez.Errcheck(errors.Errorf("tag: expected from command: %q", ez.ReadLine()))
 	}
 	c.CommitIsh = trimLinePrefix(ez.ReadLine(), "from ")
 
@@ -200,7 +200,7 @@ func (CmdTag) fiCmdRead(fir fiReader) (cmd Cmd, err error) {
 
 	// 'tagger' (SP <name>)? SP LT <email> GT SP <when> LF
 	if !strings.HasPrefix(ez.PeekLine(), "tagger ") {
-		ez.Errcheck(errors.Errorf("tag: expected tagger command: %v", ez.ReadLine()))
+		ez.Errcheck(errors.Errorf("tag: expected tagger command: %q", ez.ReadLine()))
 	}
 	c.Tagger, err = ParseIdent(trimLinePrefix(ez.ReadLine(), "tagger "))
 	ez.Errcheck(err)
@@ -333,14 +333,14 @@ func (CmdAlias) fiCmdRead(fir fiReader) (cmd Cmd, err error) {
 
 	// mark
 	if !strings.HasPrefix(ez.PeekLine(), "mark :") {
-		ez.Errcheck(errors.Errorf("alias: expected mark command: %v", ez.ReadLine()))
+		ez.Errcheck(errors.Errorf("alias: expected mark command: %q", ez.ReadLine()))
 	}
 	c.Mark, err = strconv.Atoi(trimLinePrefix(ez.ReadLine(), "mark :"))
 	ez.Errcheck(err)
 
 	// 'to' SP <commit-ish LF
 	if !strings.HasPrefix(ez.PeekLine(), "to ") {
-		ez.Errcheck(errors.Errorf("alias: expected to command: %v", ez.ReadLine()))
+		ez.Errcheck(errors.Errorf("alias: expected to command: %q", ez.ReadLine()))
 	}
 	c.CommitIsh = trimLinePrefix(ez.ReadLine(), "to ")
 
diff --git a/cmd_incommit.go b/cmd_incommit.go
index f58e59f..c8ae15f 100644
--- a/cmd_incommit.go
+++ b/cmd_incommit.go
@@ -51,7 +51,7 @@ func (FileModify) fiCmdRead(fir fiReader) (cmd Cmd, err error) {
 	str := trimLinePrefix(line, "M ")
 	fields := strings.SplitN(str, " ", 3)
 	if len(fields) != 3 {
-		return nil, errors.Errorf("commit: malformed modify command: %v", line)
+		return nil, errors.Errorf("commit: malformed modify command: %q", line)
 	}
 
 	nMode, err := strconv.ParseUint(fields[0], 8, 18)
@@ -217,7 +217,7 @@ func (NoteModify) fiCmdRead(fir fiReader) (cmd Cmd, err error) {
 	str := trimLinePrefix(line, "N ")
 	sp := strings.IndexByte(str, ' ')
 	if sp < 0 {
-		return nil, errors.Errorf("commit: malformed notemodify command: %v", line)
+		return nil, errors.Errorf("commit: malformed notemodify command: %q", line)
 	}
 
 	ref := str[:sp]
diff --git a/types.go b/types.go
index f3b7eed..a56f45d 100644
--- a/types.go
+++ b/types.go
@@ -64,27 +64,27 @@ func ParseIdent(str string) (Ident, error) {
 	ret := Ident{}
 	lt := strings.IndexAny(str, "<>")
 	if lt < 0 || str[lt] != '<' {
-		return ret, errors.Errorf("Missing < in ident string: %v", str)
+		return ret, errors.Errorf("Missing < in ident string: %q", str)
 	}
 	if lt > 0 {
 		if str[lt-1] != ' ' {
-			return ret, errors.Errorf("Missing space before < in ident string: %v", str)
+			return ret, errors.Errorf("Missing space before < in ident string: %q", str)
 		}
 		ret.Name = str[:lt-1]
 	}
 	gt := lt + 1 + strings.IndexAny(str[lt+1:], "<>")
 	if gt < lt+1 || str[gt] != '>' {
-		return ret, errors.Errorf("Missing > in ident string: %v", str)
+		return ret, errors.Errorf("Missing > in ident string: %q", str)
 	}
 	if str[gt+1] != ' ' {
-		return ret, errors.Errorf("Missing space after > in ident string: %v", str)
+		return ret, errors.Errorf("Missing space after > in ident string: %q", str)
 	}
 	ret.Email = str[lt+1 : gt]
 
 	strWhen := str[gt+2:]
 	sp := strings.IndexByte(strWhen, ' ')
 	if sp < 0 {
-		return ret, errors.Errorf("missing time zone in when: %v", str)
+		return ret, errors.Errorf("missing time zone in when: %q", str)
 	}
 	sec, err := strconv.ParseInt(strWhen[:sp], 10, 64)
 	if err != nil {
diff --git a/util.go b/util.go
index 4ca60e9..544818e 100644
--- a/util.go
+++ b/util.go
@@ -1,4 +1,4 @@
-// Copyright (C) 2017  Luke Shumaker <lukeshu@lukeshu.com>
+// Copyright (C) 2017, 2021  Luke Shumaker <lukeshu@lukeshu.com>
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU Affero General Public License as published by
@@ -35,19 +35,19 @@ func trimLinePrefix(line string, prefix string) string {
 func parse_data(line string) (data string, err error) {
 	nl := strings.IndexByte(line, '\n')
 	if nl < 0 {
-		return "", errors.Errorf("data: expected newline: %v", data)
+		return "", errors.Errorf("data: expected newline: %q", data)
 	}
 	head := line[:nl+1]
 	rest := line[nl+1:]
 	if !strings.HasPrefix(head, "data ") {
-		return "", errors.Errorf("data: could not parse: %v", data)
+		return "", errors.Errorf("data: could not parse: %q", data)
 	}
 	if strings.HasPrefix(head, "data <<") {
 		// Delimited format
 		delim := trimLinePrefix(head, "data <<")
 		suffix := "\n" + delim + "\n"
 		if !strings.HasSuffix(rest, suffix) {
-			return "", errors.Errorf("data: did not find suffix: %v", suffix)
+			return "", errors.Errorf("data: did not find suffix: %q", suffix)
 		}
 		data = strings.TrimSuffix(rest, suffix)
 	} else {