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Add append_to_end #2

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Add append_to_end #2

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1 change: 1 addition & 0 deletions .gitignore
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Original file line number Diff line number Diff line change
@@ -1,3 +1,4 @@
/target
**/*.rs.bk
Cargo.lock
.DS_Store
3 changes: 3 additions & 0 deletions README.md
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Expand Up @@ -10,6 +10,9 @@ env_perm::check_or_set("DUMMY", 1).expect("Failed to find or set DUMMY");
// Append $HOME/some/cool/bin to $PATH
// export PATH= "$HOME/some/cool/bin:$PATH"
env_perm::append("PATH", "$HOME/some/cool/bin").expect("Couldn't find PATH");
// Append $HOME/some/cooler/bin to the end of the path
// export PATH="$PATH:$HOME/some/cooler/bin"
env_perm::append_to_end("PATH", "$HOME/some/cooler/bin").expect("Couldn't find PATH");
// Sets a variable without checking if it exists.
// Note you need to use a raw string literal to include ""
// export DUMMY="/something"
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3 changes: 3 additions & 0 deletions examples/set_dummy.rs
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Expand Up @@ -7,6 +7,9 @@ fn main() {
// Append $HOME/some/cool/bin to $PATH
// export PATH= "$HOME/some/cool/bin:$PATH"
env_perm::append("PATH", "$HOME/some/cool/bin").expect("Couldn't find PATH");
// Append $HOME/some/cooler/bin to the end of the path
// export PATH= "$PATH:$HOME/some/cooler/bin"
env_perm::append_to_end("PATH", "$HOME/some/cooler/bin").expect("Couldn't find PATH");
// Sets a variable without checking if it exists.
// Note you need to use a raw string literal to include ""
// export DUMMY="/something"
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10 changes: 10 additions & 0 deletions src/lib.rs
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Expand Up @@ -8,6 +8,9 @@
//! // Append $HOME/some/cool/bin to $PATH
//! // export PATH= "$HOME/some/cool/bin:$PATH"
//! env_perm::append("PATH", "$HOME/some/cool/bin").expect("Couldn't find PATH");
//! // Append $HOME/some/cooler/bin to the front of the path
//! // export PATH="$PATH:$HOME/some/cooler/bin"
//! env_perm::append_to_end("PATH", "$HOME/some/cooler/bin").expect("Couldn't find PATH");
//! // Sets a variable without checking if it exists.
//! // Note you need to use a raw string literal to include ""
//! // export DUMMY="/something"
Expand Down Expand Up @@ -42,6 +45,13 @@ pub fn append<T: fmt::Display>(var: T, value: T) -> io::Result<()> {
profile.flush()
}

/// Appends a value to an environment variable at either the front or end
pub fn append_to_end<T: fmt::Display>(var: T, value: T) -> io::Result<()> {
let mut profile = get_profile()?;
writeln!(profile, "\nexport {}=\"${}:{}\"", var, var, value)?;
profile.flush()
}

/// Sets an environment variable without checking
/// if it exists.
/// If it does you will end up with two
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