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os/env: use libuv v1.12 getenv/setenv API

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- Minimum required libuv is now v1.12
- Because `uv_os_getenv` requires allocating, we must manage a map
  (`envmap` in `env.c`) to maintain the old behavior of `os_getenv` .
- free() map-items after removal. khash.h does not make copies of
  anything, so even its keys must be memory-managed by the caller.

closes #8398
closes #9267
This commit is contained in:
Justin M. Keyes
2019-02-24 20:09:14 +01:00
parent 1d8e768360
commit 89515304e4
14 changed files with 226 additions and 95 deletions
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2
src/nvim/os/pty_process_unix.c
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@@ -177,7 +177,7 @@ static void init_child(PtyProcess *ptyproc)
}
char *prog = ptyproc->process.argv[0];
setenv("TERM", ptyproc->term_name ? ptyproc->term_name : "ansi", 1);
os_setenv("TERM", ptyproc->term_name ? ptyproc->term_name : "ansi", 1);
execvp(prog, ptyproc->process.argv);
ELOG("execvp failed: %s: %s", strerror(errno), prog);
_exit(122); // 122 is EXEC_FAILED in the Vim source.