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| 1 | +use std::borrow::Cow; |
| 2 | +use std::ffi::OsStr; |
| 3 | + |
| 4 | +/// Change the `cmd` environment to be very isolated, particularly when Git is involved. |
| 5 | +pub fn isolate_env_std_cmd(cmd: &mut std::process::Command) -> &mut std::process::Command { |
| 6 | + for op in updates() { |
| 7 | + match op { |
| 8 | + EnvOp::Remove(var) => { |
| 9 | + cmd.env_remove(var); |
| 10 | + } |
| 11 | + EnvOp::Add { name, value } => { |
| 12 | + cmd.env(name, value); |
| 13 | + } |
| 14 | + } |
| 15 | + } |
| 16 | + cmd |
| 17 | +} |
| 18 | + |
| 19 | +/// Change the `cmd` environment to be very isolated, particularly when Git is involved. |
| 20 | +#[cfg(feature = "snapbox")] |
| 21 | +pub fn isolate_snapbox_cmd(mut cmd: snapbox::cmd::Command) -> snapbox::cmd::Command { |
| 22 | + for op in updates() { |
| 23 | + cmd = match op { |
| 24 | + EnvOp::Remove(var) => cmd.env_remove(var), |
| 25 | + EnvOp::Add { name, value } => cmd.env(name, value), |
| 26 | + }; |
| 27 | + } |
| 28 | + cmd |
| 29 | +} |
| 30 | + |
| 31 | +enum EnvOp { |
| 32 | + Remove(&'static str), |
| 33 | + Add { |
| 34 | + name: &'static str, |
| 35 | + value: Cow<'static, OsStr>, |
| 36 | + }, |
| 37 | +} |
| 38 | + |
| 39 | +fn updates() -> Vec<EnvOp> { |
| 40 | + // Copied from gix-testtools/lib.rs, in an attempt to isolate everything as good as possible, |
| 41 | + #[cfg(windows)] |
| 42 | + const NULL_DEVICE: &str = "NUL"; |
| 43 | + #[cfg(not(windows))] |
| 44 | + const NULL_DEVICE: &str = "/dev/null"; |
| 45 | + |
| 46 | + // particularly mutation. |
| 47 | + let mut msys_for_git_bash_on_windows = std::env::var_os("MSYS").unwrap_or_default(); |
| 48 | + msys_for_git_bash_on_windows.push(" winsymlinks:nativestrict"); |
| 49 | + [ |
| 50 | + EnvOp::Remove("GIT_DIR"), |
| 51 | + EnvOp::Remove("GIT_INDEX_FILE"), |
| 52 | + EnvOp::Remove("GIT_OBJECT_DIRECTORY"), |
| 53 | + EnvOp::Remove("GIT_ALTERNATE_OBJECT_DIRECTORIES"), |
| 54 | + EnvOp::Remove("GIT_WORK_TREE"), |
| 55 | + EnvOp::Remove("GIT_COMMON_DIR"), |
| 56 | + EnvOp::Remove("GIT_ASKPASS"), |
| 57 | + EnvOp::Remove("SSH_ASKPASS"), |
| 58 | + ] |
| 59 | + .into_iter() |
| 60 | + .chain( |
| 61 | + [ |
| 62 | + ("GIT_CONFIG_NOSYSTEM", "1"), |
| 63 | + ("GIT_CONFIG_GLOBAL", NULL_DEVICE), |
| 64 | + ("GIT_TERMINAL_PROMPT", "false"), |
| 65 | + ("GIT_AUTHOR_DATE", "2000-01-01 00:00:00 +0000"), |
| 66 | + ("GIT_AUTHOR_EMAIL", "[email protected]"), |
| 67 | + ("GIT_AUTHOR_NAME", "author"), |
| 68 | + ("GIT_COMMITTER_DATE", "2000-01-02 00:00:00 +0000"), |
| 69 | + ("GIT_COMMITTER_EMAIL", "[email protected]"), |
| 70 | + ("GIT_COMMITTER_NAME", "committer"), |
| 71 | + ("GIT_CONFIG_COUNT", "4"), |
| 72 | + ("GIT_CONFIG_KEY_0", "commit.gpgsign"), |
| 73 | + ("GIT_CONFIG_VALUE_0", "false"), |
| 74 | + ("GIT_CONFIG_KEY_1", "tag.gpgsign"), |
| 75 | + ("GIT_CONFIG_VALUE_1", "false"), |
| 76 | + ("GIT_CONFIG_KEY_2", "init.defaultBranch"), |
| 77 | + ("GIT_CONFIG_VALUE_2", "main"), |
| 78 | + ("GIT_CONFIG_KEY_3", "protocol.file.allow"), |
| 79 | + ("GIT_CONFIG_VALUE_3", "always"), |
| 80 | + ("CLICOLOR_FORCE", "1"), |
| 81 | + ("RUST_BACKTRACE", "0"), |
| 82 | + ] |
| 83 | + .into_iter() |
| 84 | + .map(|(name, value)| EnvOp::Add { |
| 85 | + name, |
| 86 | + value: Cow::Borrowed(OsStr::new(value)), |
| 87 | + }), |
| 88 | + ) |
| 89 | + .chain(Some(EnvOp::Add { |
| 90 | + name: "MSYS", |
| 91 | + value: Cow::Owned(msys_for_git_bash_on_windows), |
| 92 | + })) |
| 93 | + .collect() |
| 94 | +} |
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