feat: make reqwest optional dep

Cargo.toml

@@ -21,7 +21,8 @@ is-it-maintained-open-issues = { repository = "starship/starship" }
 maintenance = { status = "actively-developed" }
 
 [features]
-default = ["battery"]
+default = ["battery", "http"]
+http = ["reqwest"]
 
 [dependencies]
 clap = "2.33.0"
@@ -52,7 +53,7 @@ urlencoding = "1.0.0"
 open = "1.3.4"
 # OpenSSL causes problems when building a MUSL release. Opting to use native SSL implementation
 # see: https://github.com/richfelker/musl-cross-make/issues/65#issuecomment-509790889
-reqwest = { version = "0.10.4", default-features = false, features = ["blocking", "rustls-tls"] }
+reqwest = { version = "0.10.4", default-features = false, optional = true, features = ["blocking", "rustls-tls"] }
 unicode-width = "0.1.7"
 textwrap = "0.11.0"
 term_size = "0.3.1"

src/bug_report.rs

@@ -1,8 +1,9 @@
 use crate::utils::exec_cmd;
-use reqwest;
+
 use std::fs;
 use std::path::PathBuf;
 
+#[cfg(feature = "http")]
 const GIT_IO_BASE_URL: &str = "https://git.io/";
 
 pub fn create() {
@@ -21,21 +22,30 @@ pub fn create() {
     if open::that(&link).is_ok() {
         print!("Take a look at your browser. A GitHub issue has been populated with your configuration")
     } else {
-        let link = reqwest::blocking::Client::new()
-            .post(&format!("{}{}", GIT_IO_BASE_URL, "create"))
-            .form(&[("url", &link)])
-            .send()
-            .and_then(|response| response.text())
-            .map(|slug| format!("{}{}", GIT_IO_BASE_URL, slug))
-            .unwrap_or(link);
-
+        let link = shorten_link(&link).unwrap_or(link);
         println!(
             "Click this link to create a GitHub issue populated with your configuration:\n\n  {}",
             link
         );
     }
 }
 
+#[cfg(feature = "http")]
+fn shorten_link(link: &str) -> Option<String> {
+    reqwest::blocking::Client::new()
+        .post(&format!("{}{}", GIT_IO_BASE_URL, "create"))
+        .form(&[("url", link)])
+        .send()
+        .and_then(|response| response.text())
+        .map(|slug| format!("{}{}", GIT_IO_BASE_URL, slug))
+        .ok()
+}
+
+#[cfg(not(feature = "http"))]
+fn shorten_link(_url: &str) -> Option<String> {
+    None
+}
+
 const UNKNOWN_SHELL: &str = "<unknown shell>";
 const UNKNOWN_TERMINAL: &str = "<unknown terminal>";
 const UNKNOWN_VERSION: &str = "<unknown version>";