[PATCH 1/2] Teach Git how to parse standard power of 2 suffixes.
- From
Shawn O. Pearce <spearce@spearce.org>
- Date
- Dec 31, 2006, 03:13 UTC
- Message-ID
- <20061231031305.GA5620@spearce.org>
Sometimes its necessary to supply a value as a power of two in a configuration parameter. In this case the user may want to use the standard suffixes such as K, M, or G to indicate that the numerical value should be multiplied by a constant base before being used.
Shell scripts/etc. can also benefit from this automatic option parsing with `git repo-config --int`.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org> ---
This is a resend of the prior version of this patch. Junio convinced me on #git that this version might be better. :-)
Meant for the top of sp/mmap, but may be useful elsewhere.
Documentation/git-repo-config.txt | 5 ++++- config.c | 8 ++++++++ 2 files changed, 12 insertions(+), 1 deletions(-)
diff --git a/Documentation/git-repo-config.txt b/Documentation/git-repo-config.txt index b379ec5..c55a8ba 100644 --- a/Documentation/git-repo-config.txt +++ b/Documentation/git-repo-config.txt @@ -87,7 +87,10 @@ OPTIONS git-repo-config will ensure that the output is "true" or "false" --int:: - git-repo-config will ensure that the output is a simple decimal number + git-repo-config will ensure that the output is a simple + decimal number. An optional value suffix of 'k', 'm', or 'g' + in the config file will cause the value to be multiplied + by 1024, 1048576, or 1073741824 prior to output. ENVIRONMENT diff --git a/config.c b/config.c index 2e0d5a8..83ce9e1 100644 --- a/config.c +++ b/config.c @@ -236,8 +236,16 @@ int git_config_int(const char *name, const char *value) if (value && *value) { char *end; int val = strtol(value, &end, 0); + while (isspace(*end)) + end++; if (!*end) return val; + if (!strcasecmp(end, "k")) + return val * 1024; + if (!strcasecmp(end, "m")) + return val * 1024 * 1024; + if (!strcasecmp(end, "g")) + return val * 1024 * 1024 * 1024; } die("bad config value for '%s' in %s", name, config_file_name); }
-- 1.5.0.rc0.g6bb1