code review 5620045: cmd/dist: new command

src/cmd/dist/a.h

Index: src/cmd/dist/a.h
===================================================================
new file mode 100644
--- /dev/null
+++ b/src/cmd/dist/a.h
@@ -0,0 +1,125 @@
+// Copyright 2012 The Go Authors.  All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+typedef int bool;
+
+// The Time unit is unspecified; we just need to
+// be able to compare whether t1 is older than t2 with t1 < t2.
+typedef long long Time;
+
+#define nil ((void*)0)
+#define nelem(x) (sizeof(x)/sizeof((x)[0]))
+#define USED(x) ((void)(x))
+
+// A Buf is a byte buffer, like Go's []byte.
+typedef struct Buf Buf;
+struct Buf
+{
+	char *p;
+	int len;
+	int cap;
+};
+
+// A Vec is a string vector, like Go's []string.
+typedef struct Vec Vec;
+struct Vec
+{
+	char **p;
+	int len;
+	int cap;
+};
+
+// Modes for run.
+enum {
+	CheckExit = 1,
+};
+
+// buf.c
+bool	bequal(Buf *s, Buf *t);
+void	bfree(Buf *b);
+void	bgrow(Buf *b, int n);
+void	binit(Buf *b);
+char*	bprintf(Buf *b, char *fmt, ...);
+void	breset(Buf *b);
+char*	bstr(Buf *b);
+char*	btake(Buf *b);
+void	bwrite(Buf *b, void *v, int n);
+void	bwriteb(Buf *dst, Buf *src);
+void	bwritestr(Buf *b, char *p);
+void	bswap(Buf *b, Buf *b1);
+void	vadd(Vec *v, char *p);
+void	vcopy(Vec *dst, char **src, int n);
+void	vfree(Vec *v);
+void	vgrow(Vec *v, int n);
+void	vinit(Vec *v);
+void	vreset(Vec *v);
+void	vuniq(Vec *v);
+void	splitlines(Vec*, char*);
+void	splitfields(Vec*, char*);
+
+// build.c
+extern char *default_goroot;
+extern char *goarch;
+extern char *gobin;
+extern char *gohostarch;
+extern char *gohostos;
+extern char *goos;
+extern char *goroot;
+extern char *workdir;
+extern char *slash;
+
+void	init(void);
+void	cmdbootstrap(int, char**);
+void	cmdenv(int, char**);
+void	cmdinstall(int, char**);
+
+// buildgc.c
+void	gcopnames(char*, char*);
+void	mkenam(char*, char*);
+
+// main.c
+void	xmain(int argc, char **argv);
+
+// portability layer (plan9.c, unix.c, windows.c)
+bool	contains(char *p, char *sep);
+void	fatal(char *msg, ...);
+bool	hasprefix(char *p, char *prefix);
+bool	hassuffix(char *p, char *suffix);
+bool	isabs(char*);
+bool	isdir(char *p);
+bool	isfile(char *p);
+char*	lastelem(char*);
+Time	mtime(char*);
+void	readfile(Buf*, char*);
+void	run(Buf *b, char *dir, int mode, char *cmd, ...);
+void	runv(Buf *b, char *dir, int mode, Vec *argv);
+bool	streq(char*, char*);
+void	writefile(Buf*, char*);
+void	xatexit(void (*f)(void));
+void	xexit(int);
+void	xfree(void*);
+void	xgetenv(Buf *b, char *name);
+void	xgetwd(Buf *b);
+void*	xmalloc(int n);
+void*	xmalloc(int);
+int	xmemcmp(void*, void*, int);
+void	xmemmove(void*, void*, int);
+void	xmkdir(char *p);
+void	xmkdirall(char*);
+Time	xmtime(char *p);
+void	xprintf(char*, ...);
+void	xqsort(void*, int, int, int(*)(const void*, const void*));
+void	xreaddir(Vec *dst, char *dir);
+void*	xrealloc(void*, int);
+void	xrealwd(Buf *b, char *path);
+void	xremove(char *p);
+void	xremoveall(char *p);
+void	xsetenv(char*, char*);
+int	xstrcmp(char*, char*);
+char*	xstrdup(char *p);
+int	xstreq(char*, char*);
+int	xstrlen(char*);
+char*	xstrrchr(char*, int);
+char*	xstrstr(char*, char*);
+char*	xworkdir(void);