49cc460d88
check-ref-format --branch requires access to the repository
to resolve refs like @{-1}.
Noticed by Nguyễn Thái Ngọc Duy.
Cc: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
72 lines
1.6 KiB
C
72 lines
1.6 KiB
C
/*
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* GIT - The information manager from hell
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*/
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#include "cache.h"
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#include "refs.h"
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#include "builtin.h"
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#include "strbuf.h"
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static const char builtin_check_ref_format_usage[] =
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"git check-ref-format [--print] <refname>\n"
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" or: git check-ref-format --branch <branchname-shorthand>";
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/*
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* Replace each run of adjacent slashes in src with a single slash,
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* and write the result to dst.
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*
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* This function is similar to normalize_path_copy(), but stripped down
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* to meet check_ref_format's simpler needs.
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*/
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static void collapse_slashes(char *dst, const char *src)
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{
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char ch;
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char prev = '\0';
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while ((ch = *src++) != '\0') {
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if (prev == '/' && ch == prev)
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continue;
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*dst++ = ch;
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prev = ch;
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}
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*dst = '\0';
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}
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static int check_ref_format_branch(const char *arg)
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{
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struct strbuf sb = STRBUF_INIT;
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int nongit;
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setup_git_directory_gently(&nongit);
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if (strbuf_check_branch_ref(&sb, arg))
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die("'%s' is not a valid branch name", arg);
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printf("%s\n", sb.buf + 11);
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return 0;
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}
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static int check_ref_format_print(const char *arg)
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{
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char *refname = xmalloc(strlen(arg) + 1);
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if (check_ref_format(arg))
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return 1;
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collapse_slashes(refname, arg);
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printf("%s\n", refname);
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return 0;
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}
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int cmd_check_ref_format(int argc, const char **argv, const char *prefix)
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{
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if (argc == 2 && !strcmp(argv[1], "-h"))
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usage(builtin_check_ref_format_usage);
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if (argc == 3 && !strcmp(argv[1], "--branch"))
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return check_ref_format_branch(argv[2]);
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if (argc == 3 && !strcmp(argv[1], "--print"))
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return check_ref_format_print(argv[2]);
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if (argc != 2)
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usage(builtin_check_ref_format_usage);
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return !!check_ref_format(argv[1]);
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}
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