git/http-fetch.c, branch v2.30.2

http-fetch: set up git directory before parsing pack hashes

2020-07-30T16:16:48Z

In dd4b732df7 ("upload-pack: send part of packfile response as uri", 2020-06-10), the git http-fetch code learned how to take ac --packfile option. This option takes an argument, which is the name of a packfile hash, and parses it using parse_oid_hex. It does so before calling setup_git_directory. However, in a SHA-256 repository this fails to work, since we have not set the hash algorithm in use and parse_oid_hex fails as a consequence. To ensure that we can parse packfile hashes of the right length, let's set up the git directory before we start parsing arguments. Since we still want to allow the invocation of -h to print the help when we're not in a repository, gracefully handle us being outside of one and produce an error after argument parsing has finished. Signed-off-by: brian m. carlson Reviewed-by: Eric Sunshine Signed-off-by: Junio C Hamano

http-fetch: support fetching packfiles by URL

2020-06-11T01:06:34Z

Teach http-fetch the ability to download packfiles directly, given a URL, and to verify them. The http_pack_request suite has been augmented with a function that takes a URL directly. With this function, the hash is only used to determine the name of the temporary file. Signed-off-by: Jonathan Tan Signed-off-by: Junio C Hamano

http-fetch: refactor into function

2020-06-11T01:06:34Z

cmd_main() in http-fetch.c will grow in a future patch, so refactor the HTTP walking part into its own function. Signed-off-by: Jonathan Tan Signed-off-by: Junio C Hamano

Merge branch 'ma/http-walker-no-partial'

2018-05-08T06:59:35Z

"git http-fetch" (deprecated) had an optional and experimental "feature" to fetch only commits and/or trees, which nobody used. This has been removed. * ma/http-walker-no-partial: walker: drop fields of `struct walker` which are always 1 http-fetch: make `-a` standard behaviour

walker: drop fields of `struct walker` which are always 1

2018-04-24T01:55:04Z

After the previous commit, both users of `struct walker` set `get_tree`, `get_history` and `get_all` to 1. Drop those fields and simplify the walker implementation accordingly. Let's hope that any out-of-tree users will not mind this change. They should notice that the compilation fails as they try to set these fields. (If they do not set them, note that `get_http_walker()` leaves them undefined, so the behavior will have been undefined all the time.) Signed-off-by: Martin Ågren Signed-off-by: Junio C Hamano

http-fetch: make `-a` standard behaviour

2018-04-24T01:55:02Z

This is a follow-up to a6c786fce8 (Mark http-fetch without -a as deprecated, 2011-08-23). For more than six years, we have been warning when `-a` is not provided, and the documentation has been saying that `-a` will become the default. It is a bit unclear what "default" means here. There is no such thing as `http-fetch --no-a`. But according to my searches, no-one has been asking on the mailing list how they should silence the warning and prepare for overriding the flipped default. So let's assume that everybody is happy with `-a`. They should be, since not using it may break the repo in such a way that Git itself is unable to fix it. Always behave as if `-a` was given. Since `-a` implies `-c` (get commit objects) and `-t` (get trees), all three options are now unnecessary. Document all of these as historical artefacts that have no effect. Leave no-op code for handling these options in http-fetch.c. The options-handling is currently rather loose. If someone tightens it, we will not want these ignored options to accidentally turn into hard errors. Since `-a` was the only safe and sane usage and we have been pushing people towards it for a long time, refrain from warning when it is used "unnecessarily" now. Similarly, do not add anything scary-looking to the man-page about how it will be removed in the future. We can always do so later. (It is not like we are in desperate need of freeing up one-letter arguments.) Signed-off-by: Martin Ågren Signed-off-by: Junio C Hamano

exec_cmd: rename to use dash in file name

2018-04-11T09:11:00Z

This is more consistent with the project style. The majority of Git's source files use dashes in preference to underscores in their file names. Signed-off-by: Stefan Beller

config: don't include config.h by default

2017-06-15T19:56:22Z

Stop including config.h by default in cache.h. Instead only include config.h in those files which require use of the config system. Signed-off-by: Brandon Williams Signed-off-by: Junio C Hamano

common-main: call git_setup_gettext()

2016-07-01T22:09:10Z

This should be part of every program, as otherwise users do not get translated error messages. However, some external commands forgot to do so (e.g., git-credential-store). This fixes them, and eliminates the repeated code in programs that did remember to use it. Signed-off-by: Jeff King Signed-off-by: Junio C Hamano

common-main: call git_extract_argv0_path()

2016-07-01T22:09:10Z

Every program which links against libgit.a must call this function, or risk hitting an assert() in system_path() that checks whether we have configured argv0_path (though only when RUNTIME_PREFIX is defined, so essentially only on Windows). Looking at the diff, you can see that putting it into the common main() saves us having to do it individually in each of the external commands. But what you can't see are the cases where we _should_ have been doing so, but weren't (e.g., git-credential-store, and all of the t/helper test programs). This has been an accident-waiting-to-happen for a long time, but wasn't triggered until recently because it involves one of those programs actually calling system_path(). That happened with git-credential-store in v2.8.0 with ae5f677 (lazily load core.sharedrepository, 2016-03-11). The program: - takes a lock file, which... - opens a tempfile, which... - calls adjust_shared_perm to fix permissions, which... - lazy-loads the config (as of ae5f677), which... - calls system_path() to find the location of /etc/gitconfig On systems with RUNTIME_PREFIX, this means credential-store reliably hits that assert() and cannot be used. We never noticed in the test suite, because we set GIT_CONFIG_NOSYSTEM there, which skips the system_path() lookup entirely. But if we were to tweak git_config() to find /etc/gitconfig even when we aren't going to open it, then the test suite shows multiple failures (for credential-store, and for some other test helpers). I didn't include that tweak here because it's way too specific to this particular call to be worth carrying around what is essentially dead code. The implementation is fairly straightforward, with one exception: there is exactly one caller (git.c) that actually cares about the result of the function, and not the side-effect of setting up argv0_path. We can accommodate that by simply replacing the value of argv[0] in the array we hand down to cmd_main(). Signed-off-by: Jeff King Signed-off-by: Junio C Hamano