##// END OF EJS Templates
rhg: simplify `FindRootError` handling...
Antoine Cezar -
r45922:5dbf875b default
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@@ -1,42 +1,34
1 use crate::commands::Command;
1 use crate::commands::Command;
2 use crate::error::{CommandError, CommandErrorKind};
2 use crate::error::CommandError;
3 use crate::ui::Ui;
3 use crate::ui::Ui;
4 use hg::operations::{FindRoot, FindRootErrorKind};
4 use hg::operations::FindRoot;
5 use hg::utils::files::get_bytes_from_path;
5 use hg::utils::files::get_bytes_from_path;
6
6
7 pub const HELP_TEXT: &str = "
7 pub const HELP_TEXT: &str = "
8 Print the root directory of the current repository.
8 Print the root directory of the current repository.
9
9
10 Returns 0 on success.
10 Returns 0 on success.
11 ";
11 ";
12
12
13 pub struct RootCommand<'a> {
13 pub struct RootCommand<'a> {
14 ui: &'a Ui,
14 ui: &'a Ui,
15 }
15 }
16
16
17 impl<'a> RootCommand<'a> {
17 impl<'a> RootCommand<'a> {
18 pub fn new(ui: &'a Ui) -> Self {
18 pub fn new(ui: &'a Ui) -> Self {
19 RootCommand { ui }
19 RootCommand { ui }
20 }
20 }
21 }
21 }
22
22
23 impl<'a> Command<'a> for RootCommand<'a> {
23 impl<'a> Command<'a> for RootCommand<'a> {
24 fn run(&self) -> Result<(), CommandError> {
24 fn run(&self) -> Result<(), CommandError> {
25 let path_buf =
25 let path_buf = FindRoot::new().run()?;
26 FindRoot::new().run().map_err(|err| match err.kind {
27 FindRootErrorKind::RootNotFound(path) => {
28 CommandErrorKind::RootNotFound(path)
29 }
30 FindRootErrorKind::GetCurrentDirError(e) => {
31 CommandErrorKind::CurrentDirNotFound(e)
32 }
33 })?;
34
26
35 let bytes = get_bytes_from_path(path_buf);
27 let bytes = get_bytes_from_path(path_buf);
36
28
37 // TODO use formating macro
29 // TODO use formating macro
38 self.ui.write_stdout(&[bytes.as_slice(), b"\n"].concat())?;
30 self.ui.write_stdout(&[bytes.as_slice(), b"\n"].concat())?;
39
31
40 Ok(())
32 Ok(())
41 }
33 }
42 }
34 }
@@ -1,92 +1,106
1 use crate::exitcode;
1 use crate::exitcode;
2 use crate::ui::UiError;
2 use crate::ui::UiError;
3 use hg::operations::{FindRootError, FindRootErrorKind};
3 use hg::utils::files::get_bytes_from_path;
4 use hg::utils::files::get_bytes_from_path;
4 use std::convert::From;
5 use std::convert::From;
5 use std::path::PathBuf;
6 use std::path::PathBuf;
6
7
7 /// The kind of command error
8 /// The kind of command error
8 #[derive(Debug)]
9 #[derive(Debug)]
9 pub enum CommandErrorKind {
10 pub enum CommandErrorKind {
10 /// The root of the repository cannot be found
11 /// The root of the repository cannot be found
11 RootNotFound(PathBuf),
12 RootNotFound(PathBuf),
12 /// The current directory cannot be found
13 /// The current directory cannot be found
13 CurrentDirNotFound(std::io::Error),
14 CurrentDirNotFound(std::io::Error),
14 /// The standard output stream cannot be written to
15 /// The standard output stream cannot be written to
15 StdoutError,
16 StdoutError,
16 /// The standard error stream cannot be written to
17 /// The standard error stream cannot be written to
17 StderrError,
18 StderrError,
18 }
19 }
19
20
20 impl CommandErrorKind {
21 impl CommandErrorKind {
21 pub fn get_exit_code(&self) -> exitcode::ExitCode {
22 pub fn get_exit_code(&self) -> exitcode::ExitCode {
22 match self {
23 match self {
23 CommandErrorKind::RootNotFound(_) => exitcode::ABORT,
24 CommandErrorKind::RootNotFound(_) => exitcode::ABORT,
24 CommandErrorKind::CurrentDirNotFound(_) => exitcode::ABORT,
25 CommandErrorKind::CurrentDirNotFound(_) => exitcode::ABORT,
25 CommandErrorKind::StdoutError => exitcode::ABORT,
26 CommandErrorKind::StdoutError => exitcode::ABORT,
26 CommandErrorKind::StderrError => exitcode::ABORT,
27 CommandErrorKind::StderrError => exitcode::ABORT,
27 }
28 }
28 }
29 }
29
30
30 /// Return the message corresponding to the error kind if any
31 /// Return the message corresponding to the error kind if any
31 pub fn get_error_message_bytes(&self) -> Option<Vec<u8>> {
32 pub fn get_error_message_bytes(&self) -> Option<Vec<u8>> {
32 match self {
33 match self {
33 // TODO use formating macro
34 // TODO use formating macro
34 CommandErrorKind::RootNotFound(path) => {
35 CommandErrorKind::RootNotFound(path) => {
35 let bytes = get_bytes_from_path(path);
36 let bytes = get_bytes_from_path(path);
36 Some(
37 Some(
37 [
38 [
38 b"abort: no repository found in '",
39 b"abort: no repository found in '",
39 bytes.as_slice(),
40 bytes.as_slice(),
40 b"' (.hg not found)!\n",
41 b"' (.hg not found)!\n",
41 ]
42 ]
42 .concat(),
43 .concat(),
43 )
44 )
44 }
45 }
45 // TODO use formating macro
46 // TODO use formating macro
46 CommandErrorKind::CurrentDirNotFound(e) => Some(
47 CommandErrorKind::CurrentDirNotFound(e) => Some(
47 [
48 [
48 b"abort: error getting current working directory: ",
49 b"abort: error getting current working directory: ",
49 e.to_string().as_bytes(),
50 e.to_string().as_bytes(),
50 b"\n",
51 b"\n",
51 ]
52 ]
52 .concat(),
53 .concat(),
53 ),
54 ),
54 _ => None,
55 _ => None,
55 }
56 }
56 }
57 }
57 }
58 }
58
59
59 /// The error type for the Command trait
60 /// The error type for the Command trait
60 #[derive(Debug)]
61 #[derive(Debug)]
61 pub struct CommandError {
62 pub struct CommandError {
62 pub kind: CommandErrorKind,
63 pub kind: CommandErrorKind,
63 }
64 }
64
65
65 impl CommandError {
66 impl CommandError {
66 /// Exist the process with the corresponding exit code.
67 /// Exist the process with the corresponding exit code.
67 pub fn exit(&self) -> () {
68 pub fn exit(&self) -> () {
68 std::process::exit(self.kind.get_exit_code())
69 std::process::exit(self.kind.get_exit_code())
69 }
70 }
70
71
71 /// Return the message corresponding to the command error if any
72 /// Return the message corresponding to the command error if any
72 pub fn get_error_message_bytes(&self) -> Option<Vec<u8>> {
73 pub fn get_error_message_bytes(&self) -> Option<Vec<u8>> {
73 self.kind.get_error_message_bytes()
74 self.kind.get_error_message_bytes()
74 }
75 }
75 }
76 }
76
77
77 impl From<CommandErrorKind> for CommandError {
78 impl From<CommandErrorKind> for CommandError {
78 fn from(kind: CommandErrorKind) -> Self {
79 fn from(kind: CommandErrorKind) -> Self {
79 CommandError { kind }
80 CommandError { kind }
80 }
81 }
81 }
82 }
82
83
83 impl From<UiError> for CommandError {
84 impl From<UiError> for CommandError {
84 fn from(error: UiError) -> Self {
85 fn from(error: UiError) -> Self {
85 CommandError {
86 CommandError {
86 kind: match error {
87 kind: match error {
87 UiError::StdoutError(_) => CommandErrorKind::StdoutError,
88 UiError::StdoutError(_) => CommandErrorKind::StdoutError,
88 UiError::StderrError(_) => CommandErrorKind::StderrError,
89 UiError::StderrError(_) => CommandErrorKind::StderrError,
89 },
90 },
90 }
91 }
91 }
92 }
92 }
93 }
94
95 impl From<FindRootError> for CommandError {
96 fn from(err: FindRootError) -> Self {
97 match err.kind {
98 FindRootErrorKind::RootNotFound(path) => CommandError {
99 kind: CommandErrorKind::RootNotFound(path),
100 },
101 FindRootErrorKind::GetCurrentDirError(e) => CommandError {
102 kind: CommandErrorKind::CurrentDirNotFound(e),
103 },
104 }
105 }
106 }
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